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Nikitich [7]
3 years ago
12

(10 points) Please help me, I'm trying to pass this test so I could bring my grade up in a math class, I'd really appreciate it!

:)
Please and thank you!

Mathematics
1 answer:
ehidna [41]3 years ago
5 0

Answer:

143.79 square feet

Step-by-step explanation:

Find the area of the rhombus first, by using the equation a = 1/2(b1 + b2)h

Basically, find the average base between the two, and multiply that by the height. This gets you 112 feet.

Then, find the area of the half circle, by using the equation a = pi(r^2)

The radius is 4.5, squared is 20.23, times pi is 63.585, divided in half is 31.7925. Add the two areas together in order to get 143.7925

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Sharon has a new beaded necklace. 72 out of the 80 beads on the necklace are blue. What
erma4kov [3.2K]

Answer:

Sharon bought a necklace with 90% blue beads.

Step-by-step explanation:

We are given that Sharon's necklace has 80 beads. We are also given that of those 80 beads, 72 of them are blue.

Therefore, we can set up a ratio of blue beads to total beads in order to find out the relationship.

\displaystyle \frac{72}{80}=\frac{36}{40}=\frac{18}{20}=\frac{9}{10}

Then, using the fraction we receive as a result, we can convert this to a decimal.

\displaystyle \frac{9}{10} = 0.9

After we complete this calculation, we can multiply our decimal by 100 in order to obtain the relationship in percentage form.

0.9 \times 100 = 90\%

Of the 80 beads, 90% were blue beads.

4 0
3 years ago
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I don't understand ÷ fractions
Reptile [31]
Ok. so, you have a fraction. lets say it is, 5/20. and the other, is. 2/5. flip the first one, and multiply. so your answer would be, 25/40. hope this helps.
7 0
3 years ago
Sam will spend at most $27 on gifts. So far, he has spent $18. What are the possible additional amounts he will spend? Use c for
Assoli18 [71]

Answer:$9

Step-by-step explanation:

Let the additional amount be c

Total amount to spend on gift is $27

He had spent $18 so far

$18+c= $27

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3 years ago
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What is the value of x?
Contact [7]
Using the Pythagoras theorem 

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8 0
3 years ago
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If f(x)=x-3 and g(x)=x^3 then f(g(3))
ehidna [41]

Answer:

f(g(3)) = 24

Step-by-step explanation:

Evaluate g(3) then substitute the result obtained into f(x)

g(3) = 3³ = 27 , then

f(27) = 27 - 3 = 24

4 0
3 years ago
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