Answer:
x = 20; the labeled angles are 80° and 100° ⇒ the last answer
Step-by-step explanation:
* Lets revise some facts about a parallelism
- If two lines are parallel, and intersected by a line, there are 3
pair of angles are formed
1) Alternate angles equal in measures (corners of Z letter)
2) Corresponding angles equal in measure (corners in F letter)
3) Interior supplementary angles their sum is 180° (corners of U letter)
* Now lets solve the problem
∵ There are two parallel lines intersect by another line
- The formed U letter
∴ The labeled angles are interior supplementary angles
∴ Their sum = 180°
∴ 5x + 4x = 180° ⇒ add the like terms
∴ 9x = 180° ⇒ divide both sides by 9
∴ x = 20°
* Lets find the measure of the labeled angles
∵ The measure of one of them is 4x°
∴ Its measure = 4(20) = 80°
∵ The measure of the other is 5x°
∴ Its measure = 5(20) = 100°
1/3(4y-2)+ 1/9(6y+10)
-Use the distributive property to take away the parentheses
- Combine like terms
x2 + 3x - 108 = 0
What is the answer for this question
The answer is -12 and 9. You have to factor the equation first. Once you do this, than you can set each problem equal to zero and solve. I hope this helps.
You walk 3/8 miles to a music store. Then you walk another 1/3 miles to a clothing store. How many miles have you walked in all?
Answer:
You have walked [tex]\frac{17}{24}[/tex] miles
Step-by-step explanation:
In order to add these two fractions, we must find a common denominator. In this case, I used 24
[tex]\frac{3}{8} +\frac{1}{3} \\\\\frac{9}{24} +\frac{8}{24} =\frac{17}{24}[/tex]
Answer:
3/8 + 1/3 = 9/24 + 8/24 = 17/24
Step-by-step explanation:
how many solutions are there to this equation 7x-3(x-1)=2(2x+3)
Answer:
there are no answers it is false just did it
Step-by-step explanation:
Dyson hikes 1/2 mile every 15 minutes or 1/4 hour how far dose he hike in 1 hour
Answer:
2 miles.
Step-by-step explanation:
Jasmine wants to lose weight for an upcoming wedding. She currently weighs 186 pounds and her goal is to weigh 140 pounds. After consulting with her doctor, she feels she can safely lose 2 pounds per week. The graph tracks the projected weight loss over time.
Write an equation for the weight loss trend. Use W = weight (lb) and t = time (weeks).
how long will it take Jasmine to achieve her desired weight goal.
weeks
What is the slope
186-140=46/2=23 weeks -2/23=slope
Answer:
Equation is W = -2t+186
It will take 23 weeks to achieve the goal.
Slope = -2 pounds per week
Step-by-step explanation:
Here current Weight is 186 pounds
and her goal is to weigh 140 pounds
she can safely lose 2 pounds per week which is the slope
for t =0 , W =186 pounds (Y intercept )
slope = 2 pounds per week
since its decreasing therefore its negative
W = -2t+186 is the equation
To achieve the desired goal W = 140
plugging W = 140 and solving for t
140 = -2t+186
2t = 186-140
2t = 46
t = 23
It will take 23 weeks to achieve the goal.
Slope = -2 pounds per week
What is the average rate of change between:
x = 1 and x = 2?
x = 2 and x = 3?
x = 3 and x = 4?
Answer:
1
Step-by-step explanation:
In each set, there is a difference of 1 between the two x's.
I just did it its 2 4 and 8 i think
What is the average rate of change of the function g(x) = 3(2x) - 6 over the interval 0<=x<=3? Show all work.
Definition of average rate of change a function g(x) over an interval [a,b]:
[tex]A = \dfrac{g(b)-g(a)}{b-a}[/tex]
Substitute your function and your interval:
[tex]A = \dfrac{(3^6-6)-(3^0-6)}{3-0} = \dfrac{3^6-6-3^0+6}{3} = \dfrac{3^6-1}{3} = \dfrac{728}{3}[/tex]
The average rate of change of the function gx) = 3(2x) - 6 over the interval [0,3] is calculated as (g(3) - g(0)) / (3 - 0) which equals to 6.
Explanation:The average rate of change of a function over an interval [a,b] is defined as:
(g(b) - g(a)) / (b - a)
Here, the function g(x) = 3(2x) - 6, and the interval is [0,3]. Let's calculate g(3) and g(0).
g(3) = 3(2*3) - 6 = 12
g(0) = 3(2*0) - 6 = -6
Now, apply these values to the average rate of change formula:
(g(3) - g(0)) / (3 - 0) = (12 - (-6)) / 3 = 18 / 3 = 6.
So, the average rate of change of the function g(x) over the interval [0,3] is 6.
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Crystal's soccer team won 14 of the 20 games they played. What percent of games played did they win?
A) 14%
B) 20%
C) 70%
D) 34%
Answer:
Option C) 70%
Step-by-step explanation:
we know that
To determine the percentage of games played that won, divide the number of games won by the total number of games played.
so
[tex]P=14/20=0.70[/tex]
Convert to percentage (multiply by 100)
[tex]0.70*100=70\%[/tex]
PLEASE ANSWER RIGHT AWAY
ANSWER
The second term is 7.
EXPLANATION
The given sequence has it's first term to be:
[tex]t_1 = 3[/tex]
The recursive definition is :
[tex]t_{n+1}=2t_n+n[/tex]
To find the second term , we substitute n=1,
to obtain,
[tex]t_{1+1}=2t_1+1[/tex]
This implies that:
[tex]t_{2}=2t_1+1[/tex]
[tex]t_{2}=2(3)+1[/tex]
Simplify:
[tex]t_{2}=6+1[/tex]
[tex]t_{2} = 7[/tex]
Answer:
The second term of the sequence is 7 ⇒ the 2nd answer
Step-by-step explanation:
* Lets revise the recursive formula
1. Determine if the sequence is arithmetic (Do you add, or subtract, the
same amount from one term to the next?)
2. Find the common difference. (The number you add or subtract.)
3. Create a recursive formula by stating the first term, and then stating
the formula to be the previous term plus the common difference.
a1 = first term;
an+1= an + d
- Where:
# a1 = the first term in the sequence
# an = the nth term in the sequence
# an+1 = the term after the nth term
# n = the term number
# d = the common difference.
* Now lets solve the problem
∵ The recursive definition is tn+1 = 2 tn + n and t1 = 3
- Lets find the 2nd term
∵ t1 = 3
∵ tn+1 = 2 tn + n
* To find the second term put n = 1
∴ t2 = 2 (3) + 1
∴ t2 = 6 + 1 = 7
∴ t2 = 7
* The second term of the sequence is 7
A football team has a budget of $2500 for supplies. The team purchased new helmets for $975. Each new football costs $34. The inequality 975 + 34f ≤ 2500 can be used to describe the number of footballs (f) the team can purchase. Which statement about the number of footballs they can purchase is true?
a) The team can purchase 45 footballs.
b) The minimum number of footballs the team can purchase is 44.
c) The team can purchase 49 footballs.
d) The maximum number of footballs the team can purchase is 44.
Answer:
d) The maximum number of footballs the team can purchase is 44.
Step-by-step explanation:
975+34f≤ 2500
Subtract 975 from both sides: 975-975+34f≤ 2500-975
34f≤ 1525
Divide both sides by 34: 34f/34≤ 1525/34
f≤ 44.853
You can't purchase 0.853 of a helmet so the maximum you can buy is 44
The maximum number of footballs the team can purchase is 44.
What is inequality?Inequality directs to the phenomenon of unequal and/or unjust distribution of resources and possibilities among members of a given society. The word inequality may mean different things to various people and in different contexts.
A declaration of an order relationship between two numbers or algebraic expressions, such as greater than, greater than or equal to, less than, or less than or equal to.
Given
975+34f≤ 2500
Subtracting 975 from both sides: 975-975+34f≤ 2500-975
34f≤ 1525
Dividing both sides by 34: 34f/34≤ 1525/34
f≤ 44.853
so the maximum you can buy is 44
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Joan went to the bookstore. At
this bookstore, 3/4 of the books
are fiction. Of the fiction books,
1/3 are mystery books. What
fraction of the books at the
bookstore are mystery fiction
books?
Answer:
[tex]\frac{1}{4}[/tex] of the books in the book store are mystery fiction books.
Step-by-step explanation:
Let x represent all the books in the books store.
Then, the fraction of books that are fiction books is [tex]\frac{3}{4}x[/tex]
We have that; [tex]\frac{1}{3}[/tex] of the fiction books are mystery books.
The fraction of the books at the bookstore that are mystery fiction books is [tex]\frac{1}{3}\times \frac{3}{4}x=\frac{1}{4}x[/tex].
Therefore [tex]\frac{1}{4}[/tex] of the books in the bookstore are mystery fiction books.
Answer:
1/4
Step-by-step explanation:
Please help! Pythagorean Theorem things...
The answer is 16
The Pythagorean theorem is a^2+b^2=c^2
You already have one side and the hypotenuse (c)
15^2+b^2=17^2
15^2= 225
17^2= 289
Now you have 225+b^2= 289
Subtract 225 from both sides and you get
b^2=64
Then take the square root of both sides to get b alone
b=8
Now, since the base of the inner triangle is half of the base of the pyramid, multiply your answer by 2
You will get 16
Which of the following is a solution of y + x < -5?
(-4, -2)
(-3, -2)
(-2, -3)
(-1, -3)
Answer:
FIRST OPTION: (-4, -2)
Step-by-step explanation:
Given the inequality [tex]y + x < -5[/tex], substitute each solution given in the options:
1) For (-4, -2) :
[tex](-2)+ (-4) < -5[/tex]
[tex]-6 < -5[/tex] (This is true)
2) For (-3, -2):
[tex](-2)+ (-3) < -5[/tex]
[tex]-5 < -5[/tex] (This is not true)
3) For (-2, -3):
[tex](-3)+ (-2) < -5[/tex]
[tex]-5 < -5[/tex] (This is not true)
4) For (-1, -3):
[tex](-3)+ (-1) < -5[/tex]
[tex]-4 < -5[/tex] (This is not true)
You can observe that (-4, -2) is a solution of [tex]y + x < -5[/tex]
The answer is A.
Hope this helps :)
Can someone help me with this
Answer:
x = 14
Step-by-step explanation:
3(x + 3) - 2x = 23
3x + 9 - 2x = 23
x + 9 = 23
x = 14
cone-shaped paperweight has a diameter of 3 inches and a height of 5 inches.
What is the volume of the paperweight?
Use 3.14 for pi.
Enter your answer, as a decimal, in the box.
Answer: [tex]V=11.775\ in^3[/tex]
Step-by-step explanation:
You need to use the formula for calculate the volume of a cone. This is:
[tex]V=\frac{1}{3}\pi r^2h[/tex]
Where "r" is the radius and "h" is the height.
You know that the diameter of the cone-shaped paperweight is 3 inches. Then, you need to divide the diameter by 2 to find the radius:
[tex]r=\frac{3in}{2}\\\\r=1.5\ in[/tex]
Now you know that:
[tex]r=1.5\ in\\h=5\ in\\\pi=3.14[/tex]
Substituting these values into the formula [tex]V=\frac{1}{3}\pi r^2h[/tex], you get that the volume of the paperweight is:
[tex]V=\frac{1}{3}(3.14)(1.5\ in)^2(5\ in)[/tex]
[tex]V=11.775\ in^3[/tex]
The volume of the paperweight will be 11.76 cubic inches.
What is the volume of a cone?Let d be the diameter of the base circle and h be the height of the cone.
Then the volume of the cone will be
V = 1/12 x πd² x h
The cone-shaped paperweight has a diameter of 3 inches and a height of 5 inches.
Then the volume of the paperweight will be
V = 1/12 x π(3)² x 5
V = 1/12 x 3.14 x 9 x 5
V = 11.76 cubic inches
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adam bought a new flat screen tv with an area of 21 ft the screen is 3 feet wide how tall is it
Answer:
7 ft bRo
Step-by-step explanation:
wow i took 21 and divided it by three and i got SEVEN
how old are you like four
The height of the flat screen TV can be calculated by dividing the given area (21 square feet) by the given width (3 feet). This gives us a height of 7 feet.
Explanation:In this problem, we are given the area of the flat screen TV and the width. The area of a rectangle is calculated by multiplying the width and the height, so to find the height, we can divide the area by the width.
Let's denote the height as 'h'. So, the formula will be: Width times height = Area of the screen, or in our case, 3 feet times h = 21 square feet. Solving this equation gives us h = 21 ÷ 3 = 7 feet.
So, the height of the TV is 7 feet.
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The area of a park was increased from
22,250 square yards to 25,587.5 square
yards. What was the percent of increase in
square yards?
A. 15%
B. 22%
C. 25%
. 33%
Answer:
A. 15%
Step-by-step explanation:
percent change = (new number - old number)/(old number) * 100%
The new number is the increased area, 25,587.5 sq yd, and the old number is the original area, 22,250 sq yd.
percent change = (25,587.5 sq yd - 22,250 sq yd)/(22,250 sq yd) * 100%
percent change = (3,337.5 sq yd)/(22,250 sq yd) * 100%
percent change = 0.15 * 100%
percent change = 15%
Since the percent change is a positive number, it is a percent increase.
The percent increase was 15%.
Answer: A. 15%
Which statement are true about the angles in the diagram? Check all that apply
Answer:
Options B,C,E are true.
Step-by-step explanation:
It has been given in the question ∠ACD is supplementary to ∠ACE and ∠BCD
∠ACD ≅ ∠BCE
Option A. ∠ACE is supplementary to ∠BCD
False. They are not lying on a point of straight line.
∠ACE + ∠BCD ≠180°
Option B. ∠BCE is supplementary to ∠ACE
Since ∠ACD + ∠ACE = 180° [Given]
and ∠ACD ≅ ∠BCE [Given]
Therefore, ∠BCE + ∠ACE = 180°
TRUE.
Option C. ∠BCD is supplementary to ∠BCE
Since ∠ACD + ∠BCD = 180°[Given]
and ∠ACD ≅ ∠BCE [Given]
So ∠BCE + ∠BCD = 180°
TRUE.
Option D. ∠ACE ≅ ∠BCE
Since ∠ACD + ∠ACE = 180°
And ∠ACD + ∠BCD = 180°
This is clear from these equations that ∠ACE is supplementary to ∠BCD.
FALSE :
Option E. ∠BCD is congruent to ∠ACE
As we have already proved in option D. ∠BCD ≅ ∠ACE
TRUE
Therefore, Options B, C, E are TRUE
What is the discriminate of the quadratic equation 0=2x^2+3x-5
ANSWER
The discriminant is 49.
EXPLANATION
The given quadratic equation is:
[tex]0 =2{x}^{2} + 3x - 5[/tex]
We can rewrite this as
[tex]2{x}^{2} + 3x - 5 = 0[/tex]
Comparing this to
[tex]a{x}^{2} + bx + c = 0[/tex]
We have a=2,b=3, c=-5.
The discriminant is given by:
[tex]D = {b}^{2} - 4ac[/tex]
We plug in the values to get:
[tex]D = {3}^{2} - 4(2)( - 5)[/tex]
[tex]D =9 + 40[/tex]
[tex]D = 49[/tex]
Answer:
D IS THE ANSWER (49)
Step-by-step explanation:
A city’s population is about 763,000 and is increasing at an annual rate of 1.5%. Predict the population of the city in 50 years.
Answer:
Population will be approx 1606300.
Step-by-step explanation:
Given that a city’s population is about 763,000 and is increasing at an annual rate of 1.5%. Now we need to predict the population of the city in 50 years.
We can use growth formula
[tex]A=P\left(1+r\right)^t[/tex]
Where P=763000
rate r=1.5% = 0.015
time t = 50 years
Plug these values into above formula
[tex]A=763000\left(1+0.015\right)^{50}[/tex]
[tex]A=763000\left(1.015\right)^{50}[/tex]
[tex]A=763000\left(2.10524242061\right)[/tex]
[tex]A=1606299.96692[/tex]
Hence population will be approx 1606300.
Therefore, the predicted population of the city in 50 years is approximately [tex]$1,586,997$[/tex].
To predict the population of the city in 50 years, we can use the formula for compound interest, where the principal is the initial population, the interest rate is the annual growth rate, and the time is 50 years.
Given:
- Initial population = 763,000
- Annual growth rate = 1.5% = 0.015
Step 1: Calculate the total growth factor after 50 years using the compound interest formula.
Growth factor = [tex](1 + r)^_t[/tex]
Growth factor =[tex](1 + 0.015)^_{50}[/tex]
Growth factor = [tex]$1.015^{50} = 2.079$[/tex]
Step 2: Calculate the final population by multiplying the initial population with the growth factor.
Final population = Initial population × Growth factor
Final population = 763,000 × 2.079
Final population = [tex]$1,586,997$[/tex]
Laura makes 10.5% commission on each of her sales. How much does she make when she sells a house for 85,000
Answer:
85000/100*10.5 = $8925
Step-by-step explanation:
N/A
A discount store promises that all items it sells are 40% of their normal asking retail price. If one buys shoes that normally retail for $60.99 what is the price you would expect to pay? ( NOTICE IT IS 40% of not 40% off. Which plays a big difference) someone please help me find the answer and explain how you got the answer. I’m in algebra 1 and I am no good at math. Thanks.
Answer:
$24.4
Step-by-step explanation:
We are given that a discount store promises that all items it sells are 40% of their normal asking retail price.
If a shoes have a retail price of $60.99, we are to find the expected price of the shoes at this store.
Expected price of shoes = 40% of $60.99 = [tex] \frac { 4 0 } { 1 0 0 } \times 6 0 . 9 9 [/tex] = $24.4
the sum of two numbers is 48 and the difference is 20. what are the number?
Answer:
x = 34; y = 14
Step-by-step explanation:
Step 1: Make the equations
x + y = 48
x - y = 20
Step 2: Solve the equations
x + y = 48
x - y = 20
2x = 68
x = 34
34 + y = 48
y = 14
A restaurant has 50
50
tables.
40%
40
%
of the tables have 2
2
chairs at each table.
The remaining 60%
60
%
of the tables have 4
4
chairs at each table.
Complete the model.
Then complete the statements to find the total number of chairs in the restaurant.
Should be 160 chairs
To determine the total number of chairs in the restaurant, multiply the count of tables with 2 chairs (20 tables) by 2, and those with 4 chairs (30 tables) by 4, and sum the two products to get a total of 160 chairs.
To calculate the total number of chairs in the restaurant, we first need to find out how many tables are there with 2 chairs and how many with 4 chairs. Since 40% of the tables have 2 chairs, we multiply 40% (or 0.4) by the total number of tables (50) to find the number of tables with 2 chairs, which equals to 20 tables.
The remaining 60% of the tables have 4 chairs, so we multiply 60% (or 0.6) by the total number of tables (50) to find the number of tables with 4 chairs, which equals to 30 tables.
To find the total number of chairs, we multiply the number of tables with 2 chairs (20) by 2 and the number of tables with 4 chairs (30) by 4, then we add the two results together:
Tables with 2 chairs: 20 tables imes 2 chairs/table = 40 chairs
Tables with 4 chairs: 30 tables imes 4 chairs/table = 120 chairs
So, the total number of chairs in the restaurant is:
40 chairs + 120 chairs = 160 chairs
If y varies inversely with x, and the constant of variation
is 4.5, what are the values missing in the table?
Answer:
A. 0.5
B. 4.5
C. 1.5
D. 0.5
Step-by-step explanation:
y varies inversely with x can be written as:
y = k/x
where k is constant of variation.
1. value of A
x=A, y = 9 and k = 4.5 (given)
y = k/x
9 = 4.5/A
=> A = 4.5/9
=> A=0.5
2. Value of B
x =1, y= B, k = 4.5
y = k/x
B = 4.5/1
B= 4.5
3. Value of C
x=C, y=3. k=4.5
y = k/x
3 = 4.5/C
3C = 4.5
C = 4.5/3
C = 1.5
4. Value of D
x= 9, y=D, k=4.5
y = k/x
D = 4.5/9
D = 0.5
Answer:
[tex]A=0.5[/tex]
[tex]B=4.5[/tex]
[tex]C=1.5[/tex]
[tex]D=0.5[/tex]
Step-by-step explanation:
The form an the equation of inverse variation is:
[tex]y=\frac{k}{x}[/tex]
Being "k" the constant of variation.
Since we know "k" and we have the values given in the table, we can find the missing values:
To find A we need to substitute the [tex]y=9[/tex], the value of "k" and [tex]x=A[/tex] into the equation and solve for "A":
[tex]9=\frac{4.5}{A}[/tex]
[tex]A=\frac{4.5}{9}=0.5[/tex]
To find B we need to substitute the [tex]x=1[/tex], the value of "k" and [tex]y=B[/tex] into the equation:
[tex]B=\frac{4.5}{1}=4.5[/tex]
To find C we need to substitute the [tex]y=3[/tex], the value of "k" and [tex]x=C[/tex] into the equation and solve for "C":
[tex]3=\frac{4.5}{C}[/tex]
[tex]C=\frac{4.5}{3}=1.5[/tex]
To find D we need to substitute the [tex]x=9[/tex], the value of "k" and [tex]y=D[/tex] into the equation:
[tex]D=\frac{4.5}{9}=0.5[/tex]
Please help will give brainliest. Drag each label to the correct location on the image. Each label can be used more than once, but not all labels will be used.
Determine the unknown angle measures.
Answer:
1= 115
2=45
3=110
4=115
5=115
Step-by-step explanation:
Answer:
1:
[tex]180-(70+45)=65[/tex] degrees(3rd angle of triangle)
Angle 1 is [tex]180-65=115[/tex] degrees.
2:
Angle 2 is 45 degrees as vertically opposite is also 45 degrees.
3:
[tex]180-(65+45)=70[/tex] degrees(third angle of lower triangle)
Its opposite will also be 70 degrees.
So, 3rd can be found as : [tex]360-(70+110+70)=110[/tex] degrees
You can also say that 3 is vertically opposite of 110 degrees.
4:
[tex]180-65=115[/tex] degrees
5:
This is also 115 degrees as its vertically opposite angle to 4.
Compute the value of the discriminant and give the number of real solutions of the quadratic equation.
5x²-7X+2=0
Answer:
2 reals and 2 rationals.
Step-by-step explanation:
The discriminate gives
b^2 - 4*a*c
b = -7
a = 5
c = 2
(-7)^2 - 4(5)(2)
49 - 40
9
Taking the square root gives you +/-3
The discriminate tells you that there are 2 roots, both real and both rational
x = [(-7) +/- 3 ]/2*5
x = (- 7 - 3)/10 = - 1
x = (- 7 + 3)/10 = -0.4
Without actual division show that f(x) = (x3 − 3x2 − 13x + 15) is exactly divisible by g(x) = (x2 + 2x − 3).
Answer:
see explanation
Step-by-step explanation:
Note that the sum of the coefficients of g(x)
1 + 2 - 3 = 0
Hence x = 1 is a root of g(x) and (x - 1) is a factor
Note the sum of the coefficients of f(x)
1 - 3 - 13 + 15 = 0
hence x = 1 is a root of f(x) and (x - 1) is a factor
Since (x - 1) is a factor of both
Then f(x) is also divisible by x² + 2x - 3
A football team lost 5 yards and then gained 9. What is the team’s progress?
Answer:
4
Step-by-step explanation:
-5+9=4