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Papessa [141]
3 years ago
8

Suppose that 4% of the 500 athlete in a major meet have actually taken performance enhancing drugs, and all athletes are given t

he drug test
Mathematics
1 answer:
BaLLatris [955]3 years ago
6 0

Answer:

20 athletes have taken performance-enhancing drugs.

Step-by-step explanation:

Assuming that you want to find the number of athletes that have taken drugs, multiply 4% (0.04) by 500.

4%=4/100=1/25

1/25*500=20, 20 athletes have taken performance-enhancing drugs.

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Hiii please help i’ll give brainliest:)
nlexa [21]

Answer:

i may be wrong but i think its weaving

Step-by-step explanation:

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3 0
3 years ago
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5. Two similar figures have volumes 27 in.? and 125 in.?. The surface area of the smaller figure is 63 in.. (1 point)
GREYUIT [131]

Answer:

175\ in^{2}

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z----> the scale factor

x----> volume of the larger solid

y----> volume of the smaller solid

z^{3}=\frac{x}{y}

we have

x=125\ in^{3}

y=27\ in^{3}

substitute

z^{3}=\frac{125}{27}

z=\frac{5}{3}

step 2

Find the surface area of the larger solid

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z----> the scale factor

x----> surface area of the larger solid

y----> surface area of the smaller solid

z^{2}=\frac{x}{y}

we have

z=\frac{5}{3}

y=63\ in^{2}

substitute

(\frac{5}{3})^{2}=\frac{x}{63}

x=\frac{25}{9}*63=175\ in^{2}

3 0
3 years ago
Which of the following is a composite number? A.87 B.31 C.59 D.41
kicyunya [14]
87 is a composite number because it is divisible by 3, all of the rest of the numbers are prime
8 0
3 years ago
A and B are supplementary. If m A = 117°, what is the measure of B?
saul85 [17]
The measure of B. would be 63 degrees

i hope i helped

3 0
3 years ago
Read 2 more answers
1.1 solve for x, where 0°< x 90°. write your answer to one decimal place. 1.1.1 tanx=sin38° 1.1.2cosec( x+10°)=1.345​
snow_lady [41]

The value of x in tan(x)=sin38° is 31.6 and the value of x in cosec(x+10°)=1.345​ is 38.0

<h3>How to solve the trigonometry ratios?</h3>

The equations are given as:

tan(x)=sin38°

cosec( x+10°)=1.345​

In tan(x)=sin38°, we have:

tan(x)=0.6157

Take the arc tan of both sides

x = 31.6

Also, we have:

cosec(x+10°)=1.345​

Take the inverse of both sides

sin(x+10°) = 0.7434

Take the arc sin of both sides

x+10 = 48.0

Subtract 10 from both sides

x = 38.0

Hence, the value of x in tan(x)=sin38° is 31.6 and the value of x in cosec(x+10°)=1.345​ is 38.0

Read more about trigonometry ratios at:

brainly.com/question/11967894

#SPJ1

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2 years ago
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