Math help please..............
The answer is 2. The rate of change between -1 and 0 is 3 and between 0 and -1 is 1. The average between 3 and 1 is 2.
Answer:
- 2
Step-by-step explanation:
The average rate of change in the closed interval [ a, b ] is
[tex]\frac{f(b)-f(a)}{b-a}[/tex]
here [ a, b ] = [ - 1, 1 ]
f(b) = f(1) = 1 - 2 = - 1
f(a) = f(- 1) = 1 + 2 = 3
Hence
average rate of change = [tex]\frac{-1-3}{1-(-1)}[/tex] = [tex]\frac{-4}{2}[/tex] = - 2
Need help with this problem.
Answer:
16 to 20 spells
Step-by-step explanation:
4 to 5 spells and you find how much you need to multiply it by and in this case it is 4. Take the 4 and multiply it to 5 and 4 and you will get your answer.
Answer:
25
Step-by-step explanation:
Luna casts 4/5 of the amount of spells that Ginny casts (busy witches), so you take 1/4 of 20 and add it to 20. In other words, add 20 + 5
What is the value of this expression?
22.26 x 10^7 is the correct answer
Multiply the decimal numbers:
5.3 x 4.2 = 22.26
When multiplying scientific numbers, add the exponents together: 4+3 = 7
So you now have 22.26 x 10^7
Now you need to convert 22.26 to a scientific number, by only having one number to the left of the decimal point.
You need to move the decimal 1 place to the left, which means you need to add 1 more to the exponent.
The final answer would be 2.226 x 10^8
I need help please????
Answer:
It's True 36/9=4
4*3=12
Answer: 12
Step-by-step explanation:36 divided by 9=4
4 times 3 is 12
81^3/4= a. 27 b. 9 c. 1/27
Answer: Option a.
Step-by-step explanation:
To solve this problem you must appply the proccedure shown below:
- You need to descompose 81 into its prime factors, as following:
[tex]81=3*3*3*3=3^4[/tex]
- Now, you can rewrite it as following:
[tex](3^4)^{\frac{3}{4}}[/tex]
- You must keep on mind the Power of a power rule, which is:
[tex](a^n)^m=a^{nm}[/tex]
- Therefore, you can simplify as following:
[tex]3^{\frac{4*3}{4}}=3^3=27[/tex]
Then, the answer is the option a.
7. What’s the answer to this question
the answer here should be B I’m pretty sure
Here is your answer
B) [tex]x=5[/tex]
REASON:
Given,
[tex] {3}^{x}=243 [/tex]
[tex] {3}^{x}=3×3×3×3×3 [/tex]
[tex] {3}^{x}={3}^{5} [/tex]
Since, base is same so exponential power will be same
Hence,
[tex] x=5 [/tex]
HOPE IT IS USEFUL
the scuba diver standing on a boat is at an altitude of 1.3 meters above sea level. The scuba diver jumps into the water and decreases his altitude by 5.6 meters in one minute. what equation can be used to represent the divers altitude
Since the scuba diver jumps into the water and decreases his altitude by 5.6 meters in one minute, the equation that can be used to represent the divers altitude is [tex]y = -5x + 1.3[/tex]
What is the eqquation?The standard equation is [tex]y = mx + b[/tex]
y,x = variables
m = rate of change
b = initial value of y.
y = the height of the scuba driver after x minutes.
Given that b = 1.3
m = -5.6(decrease in altitude)
Then the equation can be written as ; [tex]y = -5x + 1.3[/tex]
hence scuba driver height is given by the equation [tex]y = -5x + 1.3[/tex]
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missing options;
A.
1.3 + 5.6
= 6.9
B.
-1.3 + 5.6
= 4.3
>
O
C. 1.3+(-5.6) = – 4.3
>
O
D. -1.3+(-5.6) = -6.9
The equation that represents the scuba diver's altitude after jumping into the water is y = 1.3 - 5.6t, where y is in meters and t is in minutes.
Let y represent the diver's altitude in meters relative to sea level after t minutes. Initially, at sea level, we have y(0) = 1.3. Due to the descent in water, the altitude decreases by 5.6 meters per minute, which means the altitude change per minute can be represented by
-5.6t. Thus, the equation that can be used to represent the diver's altitude as a function of time is:
y = 1.3 - 5.6t
where y is in meters and t is in minutes.
A large snowfall of 45 inches fell on Buffalo if one third of the snow melts each day, how much snow will remain
Answer:
Step-by-step explanation:
45/3=15
15" of snow melts each day, so after day 1 30" of snow will remain, after day 2 15" will remain and after day 3 all snow will be gone.
Please Find g(x)-h(x)
Answer:
B
Step-by-step explanation:
g(x) - h(x)
= 5x² - 10x + 9 - ( - 3x³ + 5x - 6) ← distribute parenthesis by - 1
= 5x² - 10x + 9 + 3x³ - 5x + 6 ← collect like terms
= 3x³ + 5x² - 15x + 15 → B
what two integers have a product of -35 and a sum -2
-7 and 5. The product would be -35 and the sum -2.
Hope this helps
What is the purpose of a cash dudget
Answer:
A cash budget plan is a financial plan or plan of expected money receipts and payment amid the period. These money inflows and surges incorporate incomes gathered, costs paid, and loans receipts and payments. As it were, a money spending plan is an estimated projection of the company's cash position in the future.
Miles saves $22.45 each month for 6 months. In the seventh month,he only saves $10.50. How much money would Miles save after 7 months
Please help me
Answer:
I think it is 145.20
Step-by-step explanation:
I did 22.45x6=134.70+10.50=145.20
Answer:
$145.04
Step-by-step explanation:
$22.45 * 6 + $10.50 = $145.04
Donnovan earned 99 points on his science project. If his grade was a 90%, how many points were possible?
PLEASE HELP!!!
PLEASSSSSSSSSSSSSSEEEEEE?
Answer:
Total points were 110.
Step-by-step explanation:
90/100*x=99
9/10*x=99
=x=99*10/9
=x=11*10
=110
Which type of loan features steady interest rates for the duration of the loan?
A.
point-based mortgage
B.
fixed rate mortgage
C.
adjustable rate mortgage
D.
balloon mortgage
Hi,
I would say that it’s C - adjustable rate mortgage
Anyone please correct me if I am wrong
Answer:
Option C is the answer.
Step-by-step explanation:
The answer is : Adjustable rate mortgage has a feature of steady interest rate for the duration of the loan. An adjustable rate mortgage is a type of mortgage where the interest rate varies throughout the life of the loan.
Point based mortgages have discount points that are paid to the lender at the time of closing deal ,in exchange for a reduced interest rate. This is not the answer.
In Fixed rate mortgage, the interest rate on the note remains the same through the term of the loan. This is not the answer.
A balloon mortgage is a mortgage where a large portion of the loan is repaid in a single payment at the end of the loan period. This is not the answer.
Which statement is most likely to be true for this distribution?
A. The mean is the same as the median.
B. The mean is less than the median.
C. The mean is greater than the median.
In a distribution, if the data is skewed left, the mean is less than the median; if skewed right, the mode is often less than the median, which is less than the mean.
Explanation:In a distribution, if the data is skewed to the left, the mean is less than the median, which is often less than the mode. On the other hand, if the data is skewed to the right, the mode is often less than the median, which is less than the mean. Therefore, the most likely statement to be true for this distribution is B. The mean is less than the median.
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The statement that is most likely to be true for this distribution is The mean is greater than the median.
What is right skewed distribution?This distribution is "bunched up" at the left and has a larger tail to the right, indicating that it is right skewed. The median will be nearer the left side of the graph in a right-skewed distribution since most of the data points are at the smaller end.
The mean will rise and become greater than the median due to the increased numbers in the "tail". A positively skewed distribution, also known as a right-skewed distribution in statistics, is one in which the majority of values are concentrated at the left tail of the distribution while the right tail is longer. The distribution that is negatively skewed is directly opposed by the positively skewed distribution.
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Point A (-7,-2) is rotated 270 counterclockwise and then shifted down 3 units. What are to coordinates of K’
Answer:
K'= (-2, 4)
Step-by-step explanation:
First we are going to rotate our point 270° counterclockwise.
The rule for a 270° counterclockwise rotation is [tex](x,y)-->(y,-x)[/tex], which means that we just need to interchange the coordinates of the point and change the sign of the x-coordinate:
[tex](x,y)-->(y,-x)[/tex]
[tex](-7,-2)-->(-2,-7)[/tex]
[tex](-7,-2)-->(-2,-(-7))[/tex]
[tex](-7,-2)-->(-2,7)[/tex]
Now, to shift the point 3 units down, we just need to subtract 3 units from the new y-coordinate of our resulting point form the previous procedure:
[tex](x,y)-->(x,y-3)[/tex]
[tex](-2,7)-->(-2,7-3)[/tex]
[tex](-2,7)-->(-2,4)[/tex]
We can conclude that the coordinates of K' are (-2, 4)
Answer:
-2,4
Step-by-step explanation:
i did it
The length of a room is 20 ft. and its width is 12 ft. What's the perimeter?
Answer:
64
Step-by-step explanation:
20 + 20=40
12 +12 = 24
24+40=64
Answer:
Perimeter = 64ft
Step-by-step explanation:
Perimeter is the sum of the sides i.e. length and width
Perimeter = 20+20+12+12 = 64
Judy needs to take out a personal loan for $2,500 for tuition assistance. Her bank has offered her one of the four loan packages outlined in the chart below. Determine which of the four loans will be cheapest for Judy in the long run. All interest rates are compounded monthly.
The answer would be Loan A
even though she'll pay more per month, with the others she'll pay be paying more by the time she as payed it off due to having to pay interest over a longer period of time
Answer:
Loan A is the cheapest.Step-by-step explanation:
The different loan plans are showed in the image attached.
Loan A: 12 months of duration with 9.50%.
Loan B: 24 months of duration with 8.75%.
Loan C: 36 months of duration with 7.75%.
Loan D: 48 months of duration with 6.60%.
Now, all loans are compouneded monthly. Let's the compound interest formula
[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
Loan A:
[tex]A=2500(1+\frac{0.095}{12} )^{12(1)}\\A=2,748.12[/tex]
Loan B:
[tex]A=2500(1+\frac{0.095}{24} )^{24(2)} \\A=2500(1.004)^{48}\\ A=3,028.02[/tex]
Loan C:
[tex]A=2500(1+\frac{0.095}{36} )^{36(3)} \\A=2500(1.003)^{108}\\ A=3,454.94[/tex]
Loan D:
[tex]A=2500(1+\frac{0.095}{48} )^{48(4)}\\ A=2500(1.002)^{192}\\ A=3,668.95[/tex]
Now, if you compare, you will observe that Loan A offer the cheapest result for Judy.
Therefore, Judy should use the Loan A plan.
Sylvie bought 13 bagels and a container of cream cheese. Each bagel cost the same price. The cream cheese cost $2.95. Sylvie spent a total of $7.50. Write an algebraic equation to represent the situation. Solve the equation to determine the cost of each bagel.
Answer:
0.35 cents
Step-by-step explanation:
7.50-2.95= 4.55
4.55 / 13 bagels = 0.35
The area of a triangular block is 64 square inches. If the base of the triangle is twice the height, how long are the base and the height if the triangle?
hope i could helpp!!!!
What are the zeros of g(x)=(3x-1)(2x+5)(7x-14)^2
ANSWER ASAP BY THE END OF THE DAY WITH THE WORK. PLZ!
Answer:
see explanation
Step-by-step explanation:
To find the zeros equate g(x) to zero, that is
(3x - 1)(2x + 5)(7x - 14)² = 0
Equate each factor to zero and solve for x
3x - 1 = 0 ⇒ 3x = 1 ⇒ x = [tex]\frac{1}{3}[/tex]
2x + 5 = 0 ⇒ 2x = - 5 ⇒ x = - [tex]\frac{5}{2}[/tex]
(7x - 14 )² = 0 ⇒ 7x - 14 = 0 ⇒ x = 2 with multiplicity 2
If Andrew can paint 1 house in 4 days, which sentence is true? A. Andrew can paint 9 houses in 27 days. B. Andrew can paint 8 houses in 30 days. C. Andrew can paint 7 houses in 28 days. D. Andrew can paint 6 houses in 18 days.
Answer:
The answer is C.
Step-by-step explanation:
I got this by multiplying the houses by the days it would take to paint to paint one house.
9*4=27
Answer:
C. Andrew can paint 7 houses in 28 days.
Step-by-step explanation:
Andrew can paint a house in 4 days, to check which statement is okay you just have to create an equation, the number of houses will be represented by "x" and the number of days it took will be Y you just check all the statements, for example:
Andrew can paint 9 houses in 27 days, x=9 y=27.
Y= 4x= 27= 4(9)
27= 36
As this is not correct, the statement is also in correct, the only statement that matches the math is the third one, Andrew can paint 7 houses in 28 days. X=7 Y=28
Y=7x
28=4(7)
28=28
As the math is correct the option that actually fits the equation would be the third one.
Please help I cannot figure this one out!
Answer:
77.47%
Step-by-step explanation:
We have to use Bayes Theorem in solving this problem.
This theorem's formula is:
P(A | B) = [tex]\frac{P(A and B)}{P(B)}[/tex]
Where the " | " means "given that".
For our problem, using bayes theorem, we can write:
P(Student has lice | positive ) = [tex]\frac{P(StudentHasLice and Positive)}{P(Positive)}[/tex]
P(Positive) = 0.1692 + 0.0492 = 0.2184P (Student has Lice & Positive ) = 0.1692So P(Student has lice | Positive ) = [tex]\frac{0.1692}{0.2184}=0.7747[/tex]
(a+b)(a^2+ab+b^2) multiply polynomial
Answer:
[tex]\large\boxed{(a+b)(a^2+ab+b^2)=a^3+2a^2b+2ab^2+b^3}[/tex]
Step-by-step explanation:
Use FOIL: (a + b)(c + d) = ac + ad + bc + bd
[tex](a+b)(a^2+ab+b^2)\\\\=(a)(a^2)+(a)(ab)+(a)(b^2)+(b)(a^2)+(b)(ab)+(b)(b^2)\\\\=a^3+a^2b+ab^2+a^2b+ab^2+b^3\qquad\text{combine like terms}\\\\=a^3+(a^2b+a^2b)+(ab^2+ab^2)+b^3\\\\=a^3+2a^2b+2ab^2+b^3[/tex]
The parallelogram shown below has an area of 135 units2 Find the missing base.
===================================================
Explanation:
The area of the parallelogram is equal to the base times height. The formula to use is A = b*h. The height and base are always perpendicular to one another.
The base is some unknown variable b. Multiply the base by the height 15 to get 15*b which is equal to the area 135
Therefore, 15*b = 135
Divide both sides by 15 and we isolate b
15b = 135
15b/15 = 135/15
b = 9
So the base is 9
Check:
area = base*height = 9*15 = 135
so the answer is confirmed
side note: we never use the value 17 at all. It is likely put in there as a distraction.
Answer:
9
Step-by-step explanation:
Khan Academy
Numbers 11,12,13 and 14
Answer:
11. ×8; ×27; ÷8
12. ÷16; ÷256; ×16
13. ×8
14. ×4
Step-by-step explanation:
11. g(x) =5x³
g₁ = 5x₁³
g₂ = 5x₂³
g₂/g₁ = (x₂/x₁)³
a. x is doubled. g₂/g₁ = (2x₁/x₁)³ = 2³ = 8
If x is doubled, g is multiplied by eight.
b. If x is tripled, g₂/g₁ = (3x₁/x₁)³ = 3³ = 27
If x is tripled, g is multiplied by 27.
c. If x is halved, g₂/g₁ = (½x₁/x₁)³ = (½)³ = ⅛
If x is halved, g is divided by 8.
12. ƒ(x) = 3/x⁴
f₁ = 1/x₁⁴
f₂ = 1/x₂⁴
f₂/f₁ = (x₁/x₂)⁴
a. x is doubled. f₂/f₁ = (x₁/2x₁)⁴ = (½)⁴ = 1/16
If x is doubled, f is divided by 16.
b. If x is quadrupled, f₂/f₁ = (x₁/4x₁)⁴= (¼)⁴ = 1/256
If x is tripled, f is divided by 256.
c. If x is halved, f₂/f₁ = [x₁/(½x₁)]⁴ = 2⁴ = 16
If x is halved, f is multiplied by 16.
13. V = ⁴/₃πr³
V₁ = ⁴/₃πr₁³
V₂ = ⁴/₃πr₂³
V₂/V₁ = (r₂/r₁)³
r is doubled. V₂/V₁ = (2r₁/r₁)³ = 2³ = 8
The volume of the sphere is multiplied by 8.
14. V = πr²h
V₁ = πr₁²h
V₂ = πr₂²h
If r is doubled and h stays the same, V₂/V₁ = (2r₁/r₁)² = 2² = 4
The volume of the cylinder is quadrupled.
What is the 9 percent out of 600
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❖ 9% of 600 = 54
9/100 * 600 = 54
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9% out of 500
0.09* 500 = 45
45
y=2x and -6x + 3y = 16 what are the x and y values?
Answer:
NO SOLUTION
Step-by-step explanation:
Here you're asked to solve a system of equations, linear equations in this case.
Since y = 2x, we can subst. 2x for y in the 2nd equation:
-6x + 3(2x) = 16
Combining the x terms results in 0 = 16, which is never true.
Thus, this system of linear equations has NO SOLUTION.
15.755264 round to the nearest tenths
Answer:
15.8
Step-by-step explanation:
Rounding to the nearest tenths means we are focusing on the number 7 and the number after it- 5. Because it is a 5, we will round the number 7, one higher. If it were to be a 4, it would stay a 7.
Answer:
15.8 is the Answer
Step-by-step explanation:
1) 5 in the hundreds place will be turn to 6 due to the fact that in can round up because a 5 is in the thousandth place.
2) Since 6 is 5 and greater than 5 it will round up 7 in the tenths place to 8.
hopes this helps.
A certain gas station requires a minimum of $5 to use a debit card. You plan on buying a soda and however many bags of cheetos required to use your debit card. A soda costs $1.20 and bags of cheetos cost $1.40 each. Let x be the number of bags of cheetos you buy, and create an inequality that models the situation above
Answer:
1.20 + 1.40x ≥ 5, or $1.20 + $1.40x ≥ $5
Step-by-step explanation:
So since you are only buying 1 soda and you are buying multiple bags of Cheetos so you are able to use you debit card and meet the requirement of at least $5, you can make the inequality:
1.20 + 1.40x ≥ 5, or $1.20 + $1.40x ≥ $5
where x is the number of bags of Cheetos.