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IceJOKER [234]
3 years ago
13

What is the area of the polygon ABCDE?

Mathematics
1 answer:
Setler [38]3 years ago
6 0
The answer is 73.5

To make it a lot easier split the shapes into a rectangle and triangle.
The rectangle is a tad easier because the measurements are given here.

5 x 12 = 60 (rectangle area)

To find the triangle find the base then height. The base is 3cm and the height is 9cm (shown above)

9 x 3 = 27
Divide that by 2 because it's a triangle and you get 13.5.

Add those two numbers and voila you have your answer of 73.5.
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Look at the graph below when did Denise stop walking?
bonufazy [111]

Answer:

B, between 1 and 3 seconds.

Step-by-step explanation:

This is because the line is horizontal, and no changes were made, meaning she stopped walking.

Hope this helped.

4 0
2 years ago
Which inequality does the graph represent?​
Inga [223]

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I believe the answer is B.

Step-by-step explanation:

3 0
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Can anyone give me the answer to -4/9 = 7/x
Savatey [412]

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63/4

Step-by-step explanation:

i think

5 0
3 years ago
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What is the cosine ratio of ZZ?
atroni [7]

Answer:

  • \sf \cfrac{3}{5}

Step-by-step explanation:

\sf cos(z)=\cfrac{adjacent\: side \: of \:\angle z}{hypotenuse}

\sf cos(z)=\cfrac{12}{20}

\sf cos(z)=\cfrac{3}{5}

Hope it helps!

3 0
2 years ago
Sarah takes 550 mg of an antibiotic. Every hour, her body breaks down 25% of the remaining drug. How much will be left after 12
hammer [34]

The amount of drugs that will be left after 12 hours is 17.42 mg provided Sarah takes 550 mg of an antibiotic every hour.

<h3>What is exponential decay?</h3>

Exponential decay can be described as a reduced amount of an original substance by a definite percentage over a period of time. It can be determined by using the formula:

\mathbf{y = a(1 - r)^t}

where;

  • y = total amount,          
  • a = initial amount = 550 mg
  • r = the growth rate = 0.25
  • t = number of growth periods = 12 hours

\mathbf{y = 550(1 - 0.25)^{12}}

y = 17.42 mg

Therefore, we can conclude that the amount of drugs that will be left after 12 hours is 17.42 mg.

Learn more about the exponential decay model here:

brainly.com/question/12940982

7 0
2 years ago
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