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3 years ago

I need help plss!! I don’t understand

Mathematics

1 answer:

MA_775_DIABLO [31]3 years ago

4 0

Since it says what the area of the circle is, you need to work the problem backwards from finding the area. So it would be 100 ÷ 3.14 = 31.84 that is the radius. Next you need to find the diameter, so 31.84 × 2 = 63.68. Now you multiply 63.68 × 3.14 = 199.95, round that to 200, divide 200 ÷ 2 = 100 ÷ 2 = 50 miles

Answer= 50 miles

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5 more questions to go :o

Fofino [41]

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3 0

3 years ago

What is the greatest prime you must consider to test whether 1471 is prime?

a_sh-v [17]

Answer:

1471

Step-by-step explanation:

First we have to check if it is divisible with the first 15 prime numbers

1471÷2=735.5(not divisible)

1471÷3=490.33( not divisible)

1471÷5=294.2( not divisible)

1471÷7=210.14(not divisible)

1471÷11=133.73(not divisible)

1471÷13=113.15(not divisible )

1471÷17=86.53(not divisible )

1471÷19=77.42(not divisible )

1471÷23=63.96(not divisible )

1471÷29=50.72(not divisible )

1471÷31=47.45(not divisible )

1471÷37=39.76(not divisible )

1471÷41=35.88(not divisible )

1471÷43=34.20(not divisible )

1471÷47=31.39(not divisible )

1471÷53=27.75

1471÷61=24.11

1471÷67=21.85 ......

8 0

3 years ago

I really need help, this is confusing me so much!

ohaa [14]

Answer:

The answer is B

Step-by-step explanation:

So basically you plug in the answer, 10 in the x value and 1 in the y value. Then you will find out which value is greater.

6 0

3 years ago

Read 2 more answers

Find the 20th term in the following arithmetic sequence 12,15,18,21....

svetlana [45]

Answer:

Step-by-step explanation:

The formula for the arithmetic sequence is

$a_{n}=a_{1}+d(n-1)$ , where

n is the position of the number you are looking for, a₁ is the first number in the sequenc, and d is the arithmetic difference (the difference between each number in the sequence). For us:

n = 20,

a₁ = 12, and

d = 3. ∴

our formula is this one:

$a_{20}=12+3(20-1)$ and