MATHEMATICS HIGH SCHOOL

Evaluate y⁵ for y = 1.

● 1
● 5
● 15​

Answers

Answer 1
Answer:

Answer:

1

Step-by-step explanation:

if y = 1 then y^(5) = 1 . 1 . 1. 1.1 = 1
Answer 2
Answer:

Answer: 1

Step-by-step explanation:

its just 1 because you just multiplied 1 by1 5 times

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A cyclist bikes x distance at 10miles per hour and returns over the same path at 8miles per hour .what is the cyclists average rate for the round trip in miles per hour

Answers

average speed = total distance travelled / time taken
 in this case total distance = 2x miles

time taken for first half of the journey = x/10 hours and for second part its x / 8  hours

average speed = 2x / ( x/10 + x/8)  = 2 x /  (  4x + 5x / 40)
=  2x  * 40 / 9x =  80 / 9  mph 8.89 mph

If r is the radius of a circle and d is its diameter, which of the following is an equivalent formula for the circumference C=2πr?A. C=2πd
B. C=πD
C. C=πr2
D. C=πdr

Answers

Answer:

Option B is correct

C=πD

Step-by-step explanation:

As per the statement:

If r is the radius of a circle and D is its diameter.

Given the circumference of the circle:

C = 2 \pi r             .....[1]

where,

r is the radius of the circle.

We know that:

diameter(D) = 2r

Substitute in [1] we have;

C = \pi (2r) = \pi D

Therefore, the equivalent formula for the circumference C=2πr is, C=πD
The answer is B. C=πD 

Determine if the rates $24 for 6 hours of work and $36 for 8 hours of work are equivalent. Explain your reasoning

Answers

No, because
24÷6= 4
36 ÷ 8 = 4.5

Which is bigger 40% of 120 or 1/4 of 200

Answers

1/4 of 200 is bigger because it is 50 and 40% of 120 is 48

D + 8/9 = -4, what does d equal?

Answers

Answer: D = 44/9

Step-by-step explanation:

Subtract 8/9 from both sides, after you're left with D = -4 - 8/9
Now simplify D = -4 - 8/9 to get D = 44/9

I need math help ....

Answers

number one is B I believe
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