Answers
Answer:
see attachment
Step-by-step explanation:
The directions tell you what you need to know. It is a matter of adding up the values shown and finding the missing number to make the total be -20. Of course, it works best to start with a row, column, or diagonal that has 4 numbers already.Then, you're only finding the 5th number.
You can start with either diagonal, column 1 or 4, and row 4 or 5. Filling the missing numbers in those spots (red) will let you find the remaining missing numbers (green, then blue).
The square at row 2, column 2 can be filled on the first round using the down-right diagonal. I have shown it as filled on the second round after row 5 column 2 is filled.
Using a spreadsheet can make this easier, because you can write formulas for the sums in each row, column, and diagonal. Then you're just making those sums be -20.
___
For example, consider the up-right diagonal. The sum of the given values, -6, 0, -4, -2, is -12. Then the spot at row 1, column 5 must be filled with -8 to make the sum be -20.
Related Questions
A sales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. The representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. She uses the given expression to model the number of club members, in hundreds, after advertising for t months.
What does the value 1.8 represent?
A.
the monthly percent increase in the total number of members at the club
B.
the initial number of club members, in hundreds
C.
the number of new members that join the club per month
D.
the growth factor that reveals the rate at which the total number of members at the club increases
Answers
The value 1.8 represents the growth factor in the expression, indicating the monthly growth rate of club members after advertising.
The value 1.8 in the given expression that models the number of club members, in hundreds, after advertising for t months represents the growth factor, which is the rate at which the total number of members at the club increases each month. This is not the initial number of members, nor the monthly percentage increase, nor the number of new members joining per month, but rather the multiplier applied to the previous month's total to find the next month's projected total.
If f(x)=x-6/x, g(x)=x+4 and h(x)= 3x-2 (h*f*g)(x)
Answers
Answer:
Correct answer on ed is C.
Step-by-step explanation:
Just did the exam and it was correct.
The solution is A = ( x - 14 ) / ( x + 4 )
The value of the equation ( h * f * g ) ( x ) = ( x - 14 ) / ( x + 4 )
What is Composition of functions?
Evaluation of a function at the value of another function is known as Composition of function. A function composition is a process in which two functions, f and g, form a new function, h, in such a way that h(x) = g(f(x)). This signifies that function g is being applied to the function x. So, in essence, a function is applied to the output of another function.
Given data ,
Let the function f ( x ) be represented as
f ( x ) = ( x - 6 ) / x
Let the function g ( x ) be represented as
g ( x ) = x + 4
Let the function h ( x ) be represented as
h ( x ) = 3x - 2
Now , the equation is ( h * f * g ) ( x )
The equation of composition of functions can be simplified as
h * ( f ( g ( x ) ) ) = h * ( f ( x + 4 ) )
On simplifying the equation , we get
h * ( f ( x + 4 ) ) = h * [ ( x + 4 - 6 ) / ( x + 4 ) ]
h * ( f ( x + 4 ) ) = h * [ ( x - 2 ) / ( x + 4 ) ]
Now , the composition of h * ( f ( g ( x ) ) ) is given by
h ( x ) = 3x - 2
Substitute the value of x as ( x - 2 ) / ( x + 4 ) , we get
( h * f * g ) ( x ) = 3 [ ( x - 2 ) / ( x + 4 ) ] - 2
( h * f * g ) ( x ) = ( 3x - 6 ) / ( x + 4 ) - 2
( h * f * g ) ( x ) = ( 3x - 6 - 2x - 8 ) / ( x + 4 )
( h * f * g ) ( x ) = ( x - 14 ) / ( x + 4 )
Therefore , the value of A is ( x - 14 ) / ( x + 4 )
Hence , the value of ( h * f * g ) ( x ) is ( x - 14 ) / ( x + 4 )
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The recursive rule for a geometric sequence is given.
a1 = 6; an = 1/4 an-1
Answers
Answer:
an = 6 (1/4)^(n-1)
Step-by-step explanation:
We're given the first term, a₁ = 6.
The common ratio is a term aₓ divided by the previous term aₓ₋₁.
aₓ = 1/4 aₓ₋₁
aₓ / aₓ₋₁ = 1/4
r = 1/4
Therefore:
an = 6 (1/4)^(n-1)
Your answer is correct, good job!
The recursive rule for a geometric sequence is given a₁ = 6, aₓ = 1/4 aₓ₋₁. The explicit rule would be [tex]a_n = 6 (1/4)^{n-1}[/tex].
What is a geometric sequence and how to find its nth terms?Suppose the initial term of a geometric sequence is a
and the term by which we multiply the previous term to get the next term is r
Then the sequence would look like
[tex]a, ar, ar^2, ar^3, \cdots[/tex]
Thus, the nth term of such sequence would be
[tex]T_n = ar^{n-1}[/tex]
We have been given the first term,
a₁ = 6.
The common ratio is the term aₓ divided by the previous term aₓ₋₁.
aₓ = 1/4 aₓ₋₁
aₓ / aₓ₋₁ = 1/4
r = 1/4
Therefore:
[tex]a_n = 6 (1/4)^{n-1}[/tex]
Hence, The explicit rule would be [tex]a_n = 6 (1/4)^{n-1}[/tex].
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Nidhi is creating a rectangular garden in her backyard. The length of the garden is 10 feet. The perimeter of the garden must be at least 40 feet and no more than 76 feet. Use a compound inequality to find the range of values for the width w of the garden.
Fill in the blanks
__ ≤ w ≤ __
Answers
Answer:
The range of width is 10 ≤ W ≤ 28
Step-by-step explanation:
* lets study the meaning of compound inequality
- If x is greater than a and x is smaller than b, then x is between a and b
∵ x > a and x < b
∴ The compound inequality is ⇒ a < x < b
# Ex: ∵ x > -2 and x < 10
∴ The compound inequality is ⇒ -2 < x < 10
- If x is greater than or equal a and x is smaller than or equal b, then
x is from a and b
∵ x ≥ a and x ≤ b
∴ The compound inequality is ⇒ a ≤ x ≤ b
# Ex: ∵ x ≥ -2 and x ≤ 10
∴ The compound inequality is ⇒ -2 ≤ x ≤ 10
* Now lets solve the problem
- The garden in the shape of a rectangle with dimensions length (L)
and width (W)
- The length of the garden is 10 feet
- The perimeter (P) of the garden is at least 40 feet and not more than
76 feet
∵ L = 10 feet
∵ P = 2L + 2W
- At least means greater than or equal (≥) and not more than means
smaller than or equal (≤)
∴ P ≥ 40 feet
∴ P ≤ 76 feet
- lets use the rule of the perimeter
∴ 2(10) + 2(W) ≥ 40 ⇒ simplify
∴ 20 + 2W ≥ 40 ⇒ subtract 20 from both sides
∴ 2W ≥ 20 ⇒ divide both sides by 2
∴ W ≥ 10 ⇒ (1)
- Do similar with P ≤ 76
∴ 2(10) + 2(W) ≤ 76 ⇒ simplify
∴ 20 + 2W ≤ 76 ⇒ subtract 20 from both sides
∴ 2W ≤ 56 ⇒ divide both sides by 2
∴ W ≤ 28 ⇒ (2)
- From (1) and (2)
∴ 10 ≤ W ≤ 28 ⇒ compound inequality
* The range of the width is from 10 feet to 28 feet
Please help me guys as fast as possible I BEG YOU, thanks!
vector u=-5,-7, v 6,- 2 and w -11,4
Answers
Answer:
2u + v - 4w = <40 , -4>
6u - 8v = <-78 , 58>
4v - 7w = <101 , -36>
11u + 3w = <-88 , 89>
Step-by-step explanation:
* Lets find the value of each operation to find its resultant vector
# 2u + v - 4w
∵ u = <-5 , 7>
∴ 2u = <-10 , 14>
∵ v = <6 , -2>
∵ w = <-11 , 4>
∴ 4w = <-44 , 16>
∴ 2u + v - 4w = <-10 + 6 - -44 , 14 + -2 - 16>
∴ 2u + v - 4w = <40 , -4>
# 6u - 8v
∵ u = <-5 , 7>
∴ 6u = <-30 , 42>
∵ v = <6 , -2>
∵8v = <48 , -16>
∴ 6u - 8v = <-30 - 48 , 42 - -16>
∴ 6u - 8v = <-78 , 58>
# 4v - 7w
∵ v = <6 , -2>
∴ 4v = <24 , -8>
∵ w = <-11 , 4>
∴ 7w = <-77 , 28>
∴ 4v - 7w = <24 - -77 , -8 - 28>
∴ 4v - 7w = <101 , -36>
# 11u + 3w
∵ u = <-5 , 7>
∴ 11u = <-55 , 77>
∵ w = <-11 , 4>
∴ 3w = <-33 , 12>
∴ 11u + 3w = <-55 + -33 , 77 + 12>
∴ 11u + 3w = <-88 , 89>
Solve the system of equations given . -2x+5y=-3
A. (-6,-3)
B. (-6,3)
C. (-7,-6)
D. (-3,6)
Answers
For this case we have the following system of equations:
[tex]-2x + 5y = -3\\y-15 = 3x[/tex]
We multiply the second equation by -5:
[tex]-5y + 75 = -15x[/tex]
Now we add the equations:
[tex]-2x-5y + 5y + 75 = -3-15x\\-2x + 75 = -3-15x\\-2x + 15x = -75-3\\13x = -78\\x = \frac {-78} {13}\\x = -6[/tex]
We find the value of the variable "y":
[tex]y = 3x + 15\\y = 3 (-6) +15\\y = -18 + 15\\y = -3[/tex]
THE solution is: (-6, -3)
Answer:
(-6, -3)
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
Match each sequence to its appropriate recursively defined function.
f(1) = -18
f(n) = 6 · f(n - 1) for n = 2, 3, 4, ...
f(1) = -18
f(n) = f(n - 1) + 21 for n = 2, 3, 4, ...
f(1) = 11
f(n) = f(n - 1) + 22 for n = 2, 3, 4, ...
f(1) = 11
f(n) = 3 · f(n - 1) for n = 2, 3, 4, ...
f(1) = -18
f(n) = f(n - 1) + 22 for n = 2, 3, 4, ...
f(1) = -18
f(n) = 2 · f(n - 1) for n = 2, 3, 4, ...
Sequence
Recursively Defined Function
11, 33, 55, 77, ...
arrowBoth
-18, -108, -648, -3,888, ...
arrowBoth
-18, 3, 24, 45, ...
arrowBoth
Answers
Answer:
see below
Step-by-step explanation:
Since there are fewer sequences than functions, we'll identify the matchup according to the sequence.
11, 33, 55, 77, ...
The first term is 11. The terms have a common difference of 33 -11 = 22. That is, each term is 22 more than the previous one. The appropriate recursive function is ...
f(1) = 11f(n) = f(n-1) +22 for n > 1__
-18, -108, -648, -3888, ...
The first term is -18. The terms obviously do not have a common difference, but their common ratio is -648/-108 = -108/-18 = 6. That is, each term is 6 times the previous one. Then the appropriate recursive function is ...
f(1) = -18f(n) = 6·f(n-1) for n > 1__
-18, 3, 24, 45, ...
The first term is -18. The terms have a common difference of 3-(-18) = 21. That is, each term is 21 more than the previous one. The appropriate recursive function is ...
f(1) = -18f(n) = f(n-1) +21 for n > 1Answer:
11, 33, 55, 77, ...=f(n) = f(n - 1) + 22 for n = 2, 3, 4, ...
-18, -108, -648, -3,888, ...=f(n) = 6 · f(n - 1) for n = 2, 3, 4, ...
-18, 3, 24, 45, ...=f(n) = f(n - 1) + 21 for n = 2, 3, 4, ...
Step-by-step explanation:
What is the value of x? 14 17 27 34
Answers
Answer:
[tex]x=17[/tex]
Step-by-step explanation:
see the attached figure to better understand the problem
In this problem Triangles BAE and DAE are congruent by SAS postulate
so
BE=DE
substitute the given values
[tex]3x-24=x+10[/tex]
solve for x
[tex]3x-x=24+10[/tex]
[tex]2x=34[/tex]
[tex]x=17[/tex]
Answer:
B. 17
Step-by-step explanation:
What is the distance between the points (5, 1) and (-3, -5)?
2 √5
2 √10
10
4 √5
Answers
the answer is 10. just use the distance formula which is the square root of (x2-x1)^2+(y2-y1)^2
Answer: 10 units
Step-by-step explanation:
The distance from point (a,b) and (c,d) is given by formula below:-
[tex]D=\sqrt{(c-a)^2+(d-b)^2}[/tex]
Therefore, the distance between the points (5, 1) and (-3, -5) will be :
[tex]D=\sqrt{(-3-5)^2+(-5-1)^2}\\\\\Rightarrow\ D=\sqrt{(-8)^2+(-6)^2}\\\\\Rightarrow\ D=\sqrt{64+36}\\\\\Rightarrow\ D\sqrt{100}\\\\\Rightarrow\ D=10\text{ units}[/tex]
Hence, the distance between the points (5, 1) and (-3, -5) = 10 units
Terrence is folding paper cranes at a constant rate. Write an equation to describe the relationship between c, the number of cranes, and t, the total time in minutes
Answers
Answer:
It is c = kt.
Step-by-step explanation:
This is direct variation . As the time increases the number of cranes increases.
The equation is c = kt where k is the constant of variation. In this case it will be a positive value because c is increasing with time.
If they make 20 cranes in 10 minutes then we can find the value of k by plugging in these values;
20 = k * 10
g = 20/10
k = 2.
So they make 2 cranes per minute.
Write an equation in the form
y=mx+b
for the following table:
x y
-10 -13
-8 -9
-6 -5
-4 -1
-2 3
0 7
2 11
4 15
y=-----------
Answers
Answer:
y=4x+7
Slope m=4 with the equation y2-y1/x2-x1 with any points
y-intercept (0,7)
Mina is trapped at the top of a 389 foot tall tower.if jonathan is standing 412 feet from the base of the tower,what is the angle of elevation from him to mina
Answers
The angle of elevation from Jonathan to Mina is approximately 43.81 degrees.
What are trig ratios?If you know the lengths of two sides of a right triangle, you can use trigonometric ratios to calculate the measures of one (or both) of the acute angles.
Here,
We can use the tangent function to find the angle of elevation from Jonathan to Mina.
Let θ be the angle of elevation, then we have:
tan(θ) = opposite / adjacent
Where the opposite is the height of the tower (389 feet) and adjacent is the distance between Jonathan and the base of the tower (412 feet).
So, we have:
tan(θ) = 389 / 412
θ ≈ 43.81 degrees
Therefore, the angle of elevation from Jonathan to Mina is approximately 43.81 degrees.
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You are planning to take on a part time job as a waiter at a local restaurant. During your interview, the boss told you that their best waitress, Betty, made an average of $70 a night in tips last week. However, when you asked Betty about this, she said she made an average of only $50 per night last week. She provides you with a copy of her nightly tip amounts from last week: Day Tip Amount Sunday $50 Monday $45 Wednesday $48 Friday $125 Saturday $85 Calculate the mean and median tip amount. Which value did Betty's boss use to describe the average tip? Which did Betty use?
Answers
Answer:
Betty's boss use the MEAN to describe the average tip.
Betty use the MEDIAN.
Step-by-step explanation:
The MEAN is 50+45+48+125+85= 353
353/5=70 or 70.6
The MEDIAN is the middle which is 50.
45,48,50,85,125
Hope this helps
Final answer:
The mean tip amount Betty made was $70.60, and the median was $50. Betty's boss used the mean to describe her average nightly tips, whereas Betty used the median.
Explanation:
To calculate the mean and median tip amount for Betty's nightly tips, we list her tips from last week: $50, $45, $48, $125, and $85. To find the mean, we add all the tip amounts together and divide by the number of days she worked. Betty worked 5 days, so the mean is calculated as: (50 + 45 + 48 + 125 + 85) / 5 = $70.60. The median is the middle number when the tips are arranged in order, which are $45, $48, $50, $85, and $125. Thus, the median tip amount is $50.
Based on this information, Betty's boss used the mean to describe her average tip, while Betty herself used the median to describe her average tip.
A rock band has five members and 2/5 of the members play string instruments also 0.4 other members sing does the band have the same number of string instrument players and singers explain
Answers
Answer:
Yes
Step-by-step explanation:
0.4 = 4/10 = 2/5
0.4 converted into a fraction is 4/10, 4/10 simplified is 2/5
Help
What is the approximate area of a sector given Θ≈92 degrees with a diameter of 9m?
Question 2 options:
60 m²
65 m²
15.6 m²
16.2 m²
Answers
I just took the test!
Answer:
16.2 m²
Please help me out please please !!!!!
Answers
The surface area of a sphere is given by
[tex]S = 4\pi r^2[/tex]
We deduce
[tex]r = \sqrt{\dfrac{S}{4\pi}}[/tex]
So, in your case, the radius is
[tex]r = \sqrt{\dfrac{100\pi}{4\pi}}=\sqrt{25}=5[/tex]
The volume of a sphere is given by
[tex]V=\dfrac{4}{3}\pi r^3[/tex]
So, we have
[tex]V = \dfrac{4}{3} \pi 5^3 = \dfrac{500}{3}\pi[/tex]
George read 15 pages in a book in 12 minutes. At this rate, how long will it take him to finish the book if it has 85 pages?
Answers
Answer:
Step-by-step explanation:
Set up a ratio in the form of pages/minute:
[tex]\frac{pages}{minute} :[/tex]
then fill in next to that how many pages per minute George can read:
[tex]\frac{pages}{minute}:\frac{15}{12}[/tex]
Now we want to figure out how long (time is our unknown, so we call that x) it will take him to read 85 pages. The 85 goes in a ratio on the same line as the other number of pages:
[tex]\frac{pages}{minute}:\frac{15}{12}=\frac{85}{x}[/tex]
Cross multiply to get 15x = 1020
Now divide both sides by 15 to get x = 68 minutes, which is an hour and 8 minutes.
Answer:
68 minutes
Step-by-step explanation:
Given that George read 15 pages in a book in 12 minutes, and we need to find out how long it will take him to finish the book if it has 85 pages, we must first find how much minutes it takes to read per page because we need to find the amount of time.
Write an equation (In this case p=pages and t= minutes or time):
(Remember! We are trying to find the minutes per page, not how many pages per minute.)
15p=12t
p=12/15t
p=0.8t
We now know he reads 1 page in 0.8 minutes. Given that we need to find the amount of time to read 85 pages, multiply 0.8 by 85 because 0.8 minutes=1 page.
85*0.8=68
Therefore, it takes him 68 minutes to read 85 pages
What is the value of x if 25 = 5x + 35 ?
Answers
Answer:x = -2
Step-by-step explanation:
Answer:
x=-2
Step-by-step explanation:
25=5x+35
25-35=5x
-10=5x/:5
-2=x
x=-2
A 100-lb weight is suspended by two cables as shown in the figure. Find the tension in each cable.
A) 29.9 lb & 51.8 lb
B) 40 lb & 60 lb
C) 50 lb in each cable
D) 73.2 lb & 89.7 lb
Answers
To find the tension in each cable, we need to consider the forces acting on the weight. Using Newton's second law and trigonometry, we can set up equations to solve for the tension in each cable. The tension in each cable is (OPTION C) 50 lb.
Explanation:To find the tension in each cable, we need to consider the forces acting on the weight. In this case, there are two cables pulling upward and the weight pulling downward. Since the weight is in equilibrium, the sum of the upward forces must equal the downward force. Let's label the tension in the first cable as T1 and the tension in the second cable as T2.
Using Newton's second law, we can set up the following equation: T1 + T2 = 100 lb. We also know that the angle between each cable and the vertical is the same, so the horizontal components of tension in both cables are equal. Let's call this component T.
Since the weight is in equilibrium, the vertical components of tension in the cables must also balance the weight's weight. The vertical component of tension in each cable can be found using trigonometry. Let's call this component V.
Now, we can set up two equations for the horizontal and vertical components:
T + T = 100 lb (Equation 1)
V + V = weight of the weight = 100 lb (Equation 2)
Since T1 + T2 = 2T, Equation 1 becomes:
2T = 100 lb
T = 50 lb
Substituting T = 50 lb into Equation 2, we can find V:
2V = 100 lb
V = 50 lb
Therefore, the tension in each cable is 50 lb.
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The owner of a chain of dance studios releases a report to the media. The report shows that participation in dance classes has increased by 5% in each of the past three years.
Which statement describes the most likely reason the owner releases the report?
Answers
The owner wants people to believe that dance classes are popular so that they sign up for classes. Therefore, option C is the correct answer.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
The most likely reason the owner of the dance studio chain releases the report is to demonstrate the success of their business. By highlighting the fact that participation in dance classes has increased by 5% in each of the past three years, the owner is showing the public that the business is doing well and that they are providing a valuable service. This report may also be used to encourage potential customers to join the studio's classes, which would further increase their profits.
Therefore, option C is the correct answer.
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Maria invested $2,400 into two accounts. One account paid 4% interest and the other paid 6% interest. She earned 5.5% interest on the total investment. How much money did she put in each account?
Answers
Answer:
$1800 at 6%$600 at 4%Step-by-step explanation:
Let x represent the amount invested at the higher rate (6%). Then the amount invested at the lower rate is (2400-x) and the total interest earned is ...
6%·x + 4%·(2400-x) = 5.5%·2400
Dividing by % and rearranging, we have ...
x(6 -4) = 2400(5.5 -4)
x = 2400·(5.5 -4)/(6 -4) = 2400(1.5/2) = 2400·0.75
x = 1800 . . . . . . . . amount invested at 6%
2400-x = 600 . . . amount invested at 4%
Maria put $1800 in the 6% account and $600 in the 4% account.
_____
Comment on the solution
You will note that the proportion of the investment that went to the higher interest rate account is (5.5-4)/(6-4). This is the ratio of the mixed interest rate less the lower rate to the difference of account rates. This will be the generic solution to mixture problems, so is worthy of note for that reason.
Answer:
For 4% interest, investment $600
For 6% interest, investment $1,800
Explanation:
Maria invested $2,400 into two accounts. One account paid 4% interest and the other paid 6% interest. She earned 5.5% interest on the total investment.
It is a system of linear equations in two variables. Variables are x and y. Solve for x and y using substitution method.
In substitution method: First solve for one variable in terms of another variable and then substitute into another equation.
Further explanation:
Let $x invested in account which paying 4% interest.
Let $y invested in another account which paying 6% interest.
Maria invested $2,400 into two accounts.Therefore, x + y = 2400 --------------(1)
For paying 4% interest and investment $x, Interest = 0.04x For paying 6% interest and investment $x, Interest = 0.06yMaria earned 5.5% interest on total investment = 0.055 × 2400= 132
Therefore, 0.04x + 0.06y = 132 -----------(2)
Solve system of equations for x and y , using substitution method.
x + y = 2400
solve for y in terms of x and we get,
y = 2400 - x ------------ (3)
Substitute the value of y into equation (2) and we get,
0.04x + 0.06(2400-x) = 132
0.04x + 144 - 0.06x = 132
-0.02x = 132 - 144
[tex]x=\dfrac{-12}{-0.02}[/tex]
[tex]x=600[/tex]
Substitute the value of x into eq(3)
y = 2400 - 600
y = 1800
In account paying 4% interest, invest $600 and paying 6% interest invest $1,800
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Keywords:
System of equation, Two variable equations, solve for x and y, substitution method, elimination method, cross multiplication method.
Please help me!!!!!!!!!!!!!!!!!
Answers
For this case we have that by definition, the equation of a line in the slope-intersection form is given by:
[tex]y = mx + b[/tex]
Where:
m: It's the slope
b: It is the cut point with the y axis.
We look for two points through which the line passes to find the slope:
[tex](x1, y1) = (2,2)\\(x2, y2) = (0, -4)[/tex]
[tex]m = \frac {y2-y1} {x2-x1} = \frac {-4-2} {0-2} = \frac {-6} {- 2} = 3[/tex]
So, the line is:
[tex]y = 3x + b[/tex]
We have "b" replacing any of the points:
[tex]-4 = 3 (0) + b\\-4 = b[/tex]
Finally, the equation is:
[tex]y = 3x-4[/tex]
Answer:
[tex]y = 3x-4[/tex]
the measurements of a box are doubled. what happens to its surface area?
Answers
Answer:
Surface area increases by a factor of 4
Step-by-step explanation:
Given the linear ratio = a : b, then
the area ratio = a² : b²
Here the linear ratio = 1 : 2, hence
area ratio = 1² : 2² = 1 : 4 ← increase by factor of 4
if p(a)=.78 and p(b)=.66 and p(a and b)= .53 what is p(a or b)
Answers
Answer:
0.91.
Step-by-step explanation:
We use the formula:
P(a U b) = p(a) + p(b) - p (a ∩ b) where P(a U b) is p(a or b) and p (a ∩ b) is p (a and b).
So p(a or b) = 0.78 + 0.66 - 0.53
= 0.91.
URGENT!!! TIMED!!!!
Kievan bought a new eraser that came in a cardboard wrapper.
What is the minimum amount of cardboard used for the wrapper?
38cm^2
40cm^2
76cm^2
80cm^2
IT'S NOT 40
Answers
Answer: Third option.
Step-by-step explanation:
You need to find the surface area with the formula for calculate the surface area of a rectangular prism:
[tex]SA=2(wl + lh + hw)[/tex]
Where w is the width, l is the length, and h is the height.
You can observe in the figure that:
[tex]l=5cm\\w=4cm\\h=2cm[/tex]
Then, substituting the values into the formula [tex]SA=2(wl + lh + hw)[/tex], you get that minimum amount of cardboard used for the wrapper is:
[tex]SA=2[(4cm)(5cm)+(5cm)(2cm)+(2cm)(4cm)]\\SA=76cm^2[/tex]
Answer:
third option
Step-by-step explanation:
HARDEST MATH QUESTION OF ALL TIME, CAN YOU SOLVE????????????????????? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sorry for the click baity title, I just really need to figure this out.
m AB = 110
m DE = 130
What is m
60
70
110
120
Answers
Answer:
60
Step-by-step explanation:
Angles AKB and EKD are vertical angles and congruent.
The measure of angle AKB is the sum of the measures of arcs AB and ED divided by 2.
m<AKB = (110 + 130)/2 = 120
Angles AKB and AKE are supplementary angles, so their measures add to 180 deg.
m<AKE + m<AKB = 180
m<AKE + 120 = 180
m<AKE = 60
It says to place points on them but i still don't get it. help please.
Answers
Answer: A'=(1, 3); B'=(-3, 4);C'=(3, 0); D'=(-2, 5)
You can check the PNG attached as well.
Step-by-step explanation:
You need to represent the symmetry of every given points respet to the line
[tex]y = 2[/tex]
In that case, the line beeing paralell to the x- axis, x- value of the symmetry is the same of the given point and y = 2 is the middle between both points.
Point A(1, 1)
[tex]x_{A} = 1\\ x_{A'} = 1 \\\\\frac{y_{A} +y_{A'} }{2} =2\\y_{A'} = 4 - y_{A} = 4 - 1 = 3[/tex]
Point B(-3, 0)
[tex]x_{B} = 1\\ x_{B'} = 1 \\\\\frac{y_{B} +y_{B'} }{2} =2\\y_{B'} = 4 - y_{B} = 4 - 0 = 4[/tex]
Point C(3, 4)
[tex]x_{C} = 1\\ x_{C'} = 1 \\\\\frac{y_{C} +y_{C'} }{2} =2\\y_{C'} = 4 - y_{C} = 4 - 4 = 0[/tex]
Point D(-2, -1)
[tex]x_{D} = 1\\ x_{D'} = 1 \\\\\frac{y_{D} +y_{D'} }{2} =2\\y_{D'} = 4 - y_{D} = 4 - (-1) = 4 + 1 = 5[/tex]
What number would represent the outlier in the following set of data?
10, 13, 9, 29, 15, 11, 14, 8, 10, 11, 17, 14, 12
A. 13
B. 17
C. 8
D. 29
Answers
Answer:
An outlier is the number that is much smaller or larger than the other numbers.
In this case it is 29 :)
Answer:
D: 29
Step-by-step explanation:
D: 29 is your outlier. It's quite different from the commonest values (which are in the range 8 - 17).
Solve the following equation for x
10=2-4(ax-3)
Answers
Answer:
[tex]\large\boxed{x=\dfrac{1}{a}}[/tex]
Step-by-step explanation:
[tex]2-4(ax-3)=10\qquad\text{subtract 2 from both sides}\\\\-4(ax-3)=8\qquad\text{divide both sides by (-4)}\\\\\dfrac{-4(ax-3)}{-4}=\dfrac{8}{-4}\\\\ax-3=-2\qquad\text{add 3 to both sides}\\\\ax-3+3=-2+3\\\\ax=1\qquad\text{divide both sides by}\ a\neq0\\\\x=\dfrac{1}{a}[/tex]
What does a supplementary angle look like
Answers
Answer:
It has no special appearance.
Step-by-step explanation:
Any angle of measure 180° or less is supplementary to some angle. A supplementary angle is one that is the difference between 180° and the angle you have. That is, two supplementary angles total 180°.
__
Supplementary angles are readily identifiable in a number of geometries. Adjacent angles of a parallelogram are supplementary; linear angles are supplementary. Same-side interior angles where a transversal crosses parallel lines are supplementary.