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kati45 [8]
3 years ago
10

I need help with this question can you help me

Mathematics
1 answer:
Debora [2.8K]3 years ago
6 0

Answer:

28.26ft

Step-by-step explanation:

A=πr^2

π*3^2=28.27433

28.26

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PLEASE HELP!
Fed [463]

Not sure for (b)

Step-by-step explanation:

(a)55+80+x=180 (angles inside the triangle)

135+×=+180

x=180-135

x=45

8 0
2 years ago
a student has answered 82% of the questions correctly in the examination. He made mistakes in 9 questions Calculate the toltal n
Sonja [21]

Answer:

There is a total 50 questions.

Step-by-step explanation:

Let x = total questions in the exam

Since 82% of the test was scored correctly, that means 18% of the student's exam was scored incorrectly.

With this information we can write:

18\%x=9 (Given that the student made 9 mistakes)

x=9\div18\% (divide 18% on both sides)

x=50

∴ There was a total of 50 questions in the examination.

5 0
3 years ago
What will be the value in twenty years of $1000 invested at the end of each year for the next twenty years?
denis23 [38]
The formula for yearly compound interest is A(1 + r)^t

Where is A = 1000, r = 8%, t = 20

1000(1 + .08)^{20} = 4660.96

The answer is $4660.96
3 0
3 years ago
15. Xavier filled a 36 ounce cup with water. He
aniked [119]

Answer:28.8 ounces

Step-by-step explanation:20% -36 =22.8

4 0
3 years ago
HELP ASAP!!
Monica [59]
B because it makes sense
3 0
3 years ago
Read 2 more answers
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