3 years ago

What percent of 80 is 36?

Mathematics

1 answer:

Helen [10]3 years ago

7 0

45% :)
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kolezko [41]

B. 45 degrees is the answer

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1 year ago

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Can someone explain these to me?

s344n2d4d5 [400]

Answer:

Question 2: 4^12

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Step-by-step explanation:

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2 years ago

g A 5 foot tall man walks at 10 ft/s toward a street light that is 20 ft above the ground. What is the rate of change of the len

vredina [299]

Answer:

$-\frac{10}{3}ft/s$

Step-by-step explanation:

We are given that

Height of man=5 foot

$\frac{dy}{dt}=-10ft/s$

Height of street light=20ft

We have to find the rate of change of the length of his shadow when he is 25 ft form the street light.

ABE and CDE are similar triangle because all right triangles are similar.

$\frac{20}{5}=\frac{x+y}{x}$

$4=\frac{x+y}{x}$

$4x=x+y$

$4x-x=y$

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$3\frac{dx}{dt}=\frac{dy}{dt}$

$\frac{dx}{dt}=\frac{1}{3}(-10)=-\frac{10}{3}ft/s=-\frac{10}{3}ft/s$

Hence, the rate of change of the length of his shadow when he is 25 ft from the street light= $-\frac{10}{3}ft/s$

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2 years ago

Which of the following expressions is equal to tan205°?

disa [49]

Tan205° = .466 tan55° = 1.428 tan25° = .466 -tan25° = " so just tan25

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2 years ago

Select all the possible ways to transform the letter V in a single transformation so that its point is up rather than down.

Alika [10]

I think that would be B,C....

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