The radius of the circle is 2.5 cm. - Find the circumference of the circle. Round your answer to the nearest centimeter
2.5 cm
8 cm
O 16 cm
O 79 cm
O 157 cm

Answers

Answer 1

Answer:

I would say A but i am not sure i did not take the test

Step-by-step explanation:


Related Questions

identify the like terms 4b, 8, 2b, 1

Answers

Geometry hope that helps

Answer:

4b & 2b are like terms

Step-by-step explanation:

The following system of inequalities shows the relationship between two numbers, where the value of x is less than the value of y,
and both numbers are integers.


Which solution is valid within the context of the situation?

Answers

Answer:

(-1,5)

Step-by-step explanation:

Factor the following polynomials: a^2+a+72

Answers

Answer:

72 + a (1 + a)

Step-by-step explanation:

The Difference of 4 and k, divided by 16.

Answers

Answer:4-k÷6

Step-by-step explanation:

What is the slope of the line in the graph?

Answers

Answer:

1 is the answer 1/1 because it goes one up and one right

Answer:

1

Step-by-step explanation:

First choose any 2 points in the line for example ( 2,3 ) ( 3,4 )

[tex]\frac{3-4}{2-3}[/tex]  = 1

Which repeated series equals 8×10⁴

8×10×4

8×10+10+10+10


8×10×10×10×10


8×4×4×4×4×4×4×4×4×4×4




Answers

Answer: 8×10×10×10×10

Step-by-step explanation: Hope this helps :)

Answer:

8×10×10×10×10

Step-by-step explanation:

this one

Have a nice day and I hope I helped you:)

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

Answer: no solution

Step-by-step explanation:

They have the same slope which means they are parallel lines that will never cross or intersect. This mean that there is no solution

Evaluate f(4)  for the function f(x)=3x-5
A.12
B.7
C.9
D.17​

Answers

the answer is b.7

Step-by-step explanation:

because you have to plug in the f(4) to the equation like this

f(4)=3(4)-5

and then multiple 3x4 which is 12 then subtract 12 and 5 and you get 7.

Two mechanics worked on a car. The first mechanic charged $55 per hour, and the second mechanic charged $90 per hour. The mechanics worked for a combined total of 25 hours, and together they charged a total of $1900. How long did each mechanic work?

Answers

55x+90y=1900
x+y=25, x=25-y
55(25-y)+90y=1900
1375-55y+90y=1900
35y=525
y=15
So it is 15 for the 90$ and 10 for the 55$

I need help please will mark the brainliest

Answers

Answer:

im not  smart

Step-by-step explanation:

i need points

Pls help me with this problem. Also the answer has to be in terms of pi

Answers

Answer: 25pi
Explanation: area = piR^2 so 10(radius)^2 = 100pi, only 1/4 of the circle is there so divide the area found (100pi) by 4 to find the one quarter of the circle.

Is tu parallel to vw? Explain.
O no, because both lines have a slope of
no, because the slopes of the lines are not equal
O yes, because both lines have a slope of 2
O yes, because the slopes of the lines are not equal

Answers

Answer: C

Step-by-step explanation:

Answer:

C. yes, because both lines have a slope of 2/3

Step-by-step explanation:

Please someone explain how to solve this piecewise function!!!! Im super confused

Answers

Answer:

From top to bottom:

[tex]0, 1, 2, -8, -8[/tex]

Step-by-step explanation:

We are given the piecewise function:

[tex]g(x) = \left\{ \begin{array}{ll} 0.5x+1 & \text{if } x \leq 2 \\ -8 & \text{if } x > 2 \end{array} \right.[/tex]

Row 1:

We want to find g(-2).

Since -2 is less than (or equal to) 2, we will use the first equation. Thus:

[tex]g(-2)=0.5(-2)+1=-1+1=0[/tex]

Row 2:

Likewise, 0 is less than or equal to 2. We will continue to use the first equation:

[tex]g(0)=0.5(0)+1=1[/tex]

Row 3:

2 is not less than 2 but it is equal to 2. So we will continue to use the first equation:

[tex]g(2)=0.5(2)+1=1+1=2[/tex]

Row 4 and 5:

Both 4 and 6 are greater than 2. Thus, we will use the second equation. Therefore:

[tex]g(4)=-8\text{ and } g(6)=-8[/tex]

if the line 2x+3y=6 is perpendicular to the line ax+4y=3, then a=?​

Answers

Answer:3y=−2x+12

y=(−2x+12)/3

y=-2x/3+4

m=-2/3

perpendicular -1/m=3/2

y=mx+c

y=3/2x+12

2y=3x+12

Step-by-step explanation:

Ken predicts that the average temperature will be −5°C in December. If he predicts the temperature will rise 6°C in January and fall 3°C in February, which of the following equations can he use to find the sum of the temperatures for those months? Check all that apply.

[6 + 3] + 5 = 14
(–5) + [3 + 6] = –4
[(–5) + (–3)] + 6 = –2
5 + [(–6) + (–3)] = –4
[6 + (–5)] + (–3) = –2
[(–5) + 6 ] + (–3) = 4

Answers

Answer:

[(–5) + (–3)] + 6 = –2

[6 + (–5)] + (–3) = –2

Step-by-step explanation:

Look at the image below!

Hoped I helped :3 Sorry if wrong :( Mark brainiest if correct! Your bootiful/handsome! Have a great day luv <3

-Bee~

Answer:

C and E

Step-by-step explanation:

i got it right on edge just now

Mrs. Bentiez earns $3,400 every month. She spends 25% of her earnings on rent and saves 12% on food, she saves the rest of her money. How much does Mrs. Bentiez save each month?

Answers

Answer:

$2244

Step-by-step explanation:

what fraction is 15 minutes of 1 hour explain also​

Answers

Answer:

1/4

Step-by-step explanation:

15+15+15+15= 60

i hope this helps

Answer:

The answer is 1/4

Step-by-step explanation:

1 hour = 60 minutes

Therefore;

Fraction of 15 minutes with respect to 1 hour is;

15 minutes/ 1 hour

=15 minutes/60 minutes

=1/4

Therefore the answer is 1/4

Hope this helps.

BAME question: write out the correct proportion and solve to find 90% of 65

Answers

Answer: 58.5

Step-by-step explanation:

HELP ASAP I WILL MARK BRAINLIST!!!!!

Answers

Answer:

45°

Step-by-step explanation:

Given,

x° = (90-x)° [Alternate exterior angles]

=> 90 - x = x

=> 90 = x + x

=> 90 = 2x

[tex] = > x = \frac{90}{2} [/tex]

=> x = 45°(Ans)

Mason is working two summer jobs, making $20 per hour lifeguarding and making $10 per hour landscaping. In a given week, he can work no more than 13 total hours and must earn at least $170. If xx represents the number of hours lifeguarding and yy represents the number of hours landscaping, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

[tex]x = 4\\y = 9[/tex] hours

Step-by-step explanation:

Given -

x represents the number of hours lifeguarding and y represents the number of hours landscaping

[tex]x+ y = 13[/tex] -----Eq ( 1 )

and

[tex]20 * x + 10 * y = 170[/tex] -----Eq ( 2 )

Substituting the value of [tex]x = 13-y[/tex] in equation 2, we get -

[tex]20* (13 - y) + 10 y = 170[/tex]

[tex]260 - 20 y + 10 y = 170\\10y = 90\\y = 9[/tex]

[tex]x = 13-9 = 4[/tex]

The Wall Street Journal Corporate Perceptions Study surveys readers and asks how each rats the quality of management and the reputation of the company for over worldwide corporations. Both the quality of management and the reputation of the company were rated on an excellent, good, and fair categorical scale. Assume the sample data for respondents below:
Reputation of Company
Quality of Management Excellent Good Fair
Excellent 40 25 5
Good 35 35 10
Fair 25 10 15
A. Use level of significance and test for independence of the quality of management and the reputation of the company. Compute the value of the test statistic (to 2 decimals).
B. If there is a dependence or association between the two ratings, discuss and use the probabilities to justify your answer.

Answers

Answer:

Step-by-step explanation:

[tex]\text{The data given for the quality measurement and other criteria can be seen below:}[/tex]

Quality management      Excellent      Good      Fair      Total

Excellent                             40                   25         5             70

Good                                   35                    35        10            80

Fair                                       25                   10         15             50

Total                                    100                   70        30           200

The null and alternative hypothesis:

[tex]\mathbf{H_o: \text{the quality management and reputation are independent} }[/tex]

[tex]\mathbf{H_a: \text{the quality management and reputation are not independent} }[/tex]

The expected value is calculated by using the formula:

[tex]E=\dfrac{row \ total \times column \ total }{table \ total}[/tex]

After using the formula to calculate the table above; we have:

The expected values of the data to be:

Quality management     Excellent         Good      Fair      Total

Excellent                            35                  24.5       10.5      70

Good                                  40                   28         1.2         80

Fair                                     25                  17.5        7.5         50

Total                                   100                  70        30           200

Degree of freedom = ( row - 1 ) × ( column -1 )

[tex]= (3 - 1 ) \times (3 -1)[/tex]

[tex]= 2\times 2[/tex]

[tex]=4[/tex]

[tex]\text{The p-value at level of significance of 0.05 and degree of freedom of 4 = }\mathbf{0.0019}[/tex]

Decision rule: To reject the [tex]\mathbf{H_o}[/tex] if the p-value is less than the ∝

Conclusion: We reject the [tex]\mathbf{H_o}[/tex] and conclude that quality management and reputation are not independent.

(B)[tex]\text{The P-value here implies that in case that there is no dependence between the two ratings, }[/tex][tex]\text{the probability that they will seem to show at least this kind of strong dependence is 0.0019.}[/tex]

[tex]\text{Thus, the probability that they will seem to show at least this kind of strong independence is =}[/tex][tex]\mathbf{0.0019}[/tex]

Answer pls thank you

Answers

Answer:

I got 5.19.

Step-by-step explanation:

With this number there is no way to get a perfect sqaure. When you square root it, you get a decimal. If there's an option where it says no perfect square I'd suggest putting that

Rodney has $450 in his bank account. He is spending $20 per week. Which of the following equations represents the amount of money, M, in Rodney's account after w weeks?​

Answers

Answer:   M = -20w + 450

Step-by-step explanation:

M = -20w + 450

450 is the amount in his bank account; because he is spending $20 per weeks, so it's -20w.

A pizza dinner for $20 was marked down 20%. What was the new sale cost of the dinner?​

Answers

Answer:

$16

Step-by-step explanation:

take 20 multiply it by 0.2 and you get 4 multiplied by 4 is 16 so it is 16 dollars

16 that’s your answer to ur question

i need help with everything please if you help you are a legend

Answers

Answer:

you got this

Step-by-step explanation:

go with your gut and you sure can win

Answer:

I can help.

Step-by-step explanation:

3a is closer to 1, because 12/12 is 1. and 6/12 is 1/2

3b is closer to 0, because 0/6 is o. and 3/6 is 1/2.

3c is 1 and 1 1/12

11/12 + 1/6

find the common denominator. 12. 6×2 and 1×2 then add straight across.

hi, if your looking for extra points (50+) and brainiest here is ur chance, answer this question correctly plz

Answers

Answer:

i will take company (a) because they are giving in less rate

Answer:

You would want to go with A

Step-by-step explanation:

If you do plan a it is 180 dollars a year when you spend 15 dollars per GB, B is cheaper on the other hand because it is 75 dollars a month so therefore 900 dollars a year

A is cheaper

can somebody help me with this

Answers

Answer:

[tex]y = -x^2+3x+4[/tex]

Step-by-step explanation:

( -1, 0) , (0, 4) , (4, 0)

y = a(x − b)(x − c)

x-intercept = -1

x = -1

(x + 1) = 0

x-intercept = 4

x = 4

(x - 4) = 0

y = (x + 1)(x - 4)

4 = a(0 + 1)(0 - 4)

4 = a (1)(-4)

4 = -4a

a = -1

y = -1(x + 1)(x - 4)

[tex]y = -x^2+3x+4[/tex]

4. Which line represents the function y=10(1.05)^x
10 points
25
20
15
5
Blue
Green
Red

Answers

Answer:

EX: Use three coins to represent the wolf, the goat, and the cabbage. ... The slope from (0, 0) to any point (x, y) on the line will be y_ x . 8b. b 7.5. 9a. ... 11b. x 2. 10x. 25 x. 4 x x2. 4x. 7. 7x. 28. 11c. xy 2y 6x 12 11d. x 2. 2x. 3. 2 x y ... 13c. 4 yr. 13d. 24. ___. 20. 6 __. 5 1.2. 14a. 3 x 2. 16x 5. 1. 3x x 3x2. 15x. 5. 1x.

Step-by-step explanation:

(1 p 18. Demarcus drew a pair of complementary angles. He drew one angle that had a measure of 48º. What was the measure of the other angle he drew? 42° 48° O 132° O 138°​

Answers

Answer: 42

Step-by-step explanation:

Complementary angles are angles in which the sums equal 90.

90 - 48 = 42.

Find the total surface area of the
following prism:
5 cm
5 cm
5 cm
5 cm
10 cm
5 cm
apothem = 3.6 cm
SA = [ ? ] cm2

Answers

Answer:

Total surface area = 340 cm²

Step-by-step explanation:

Surface area of the given prism = Area of two bases + Area of its lateral surfaces

Area of pentagonal base = [tex]\frac{1}{2}(\text{Apothem)}(\text{Perimeter})[/tex]

                                          = [tex]\frac{1}{2}(3.6)(5\times 5)[/tex]

                                          = 45 cm²

Area of the lateral sides of the prism = Perimeter of the pentagonal base × height

= (5×5)×10

= 250 cm²

Total surface area of the prism = 2(45) + 250

                                                     = 90 + 250

                                                     = 340 cm²

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