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3 years ago

Which is a prime number? A. 39 B. 49 C. 81 D. 89

Mathematics

2 answers:

Alexus [3.1K]3 years ago

5 0

D: 89 is the prime number.

nataly862011 [7]3 years ago

5 0

The prime numbers include: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107 etc.

The correct answer is D. 89

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Hey um this is confusing

aleksandr82 [10.1K]

Answer:

15.7

Step-by-step explanation:

Lets take a = 50.

Area of Sector =

$\frac{a}{360} \pi {r}^{2} \\ = \frac{50}{360} \pi {6}^{2} \\ = \frac{50}{360} (3.14)(36) \\ = 15.7units {}^{2}$

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3 years ago

What is the answer to m + 3 = -8

xeze [42]

Answer:

m=-11

Step-by-step explanation:

All you have to do is subtract 3 from both sides and you get -11!

I hope this helps and have a great day!

6 0

3 years ago

Read 2 more answers

Convert 6 x 10 to the power of 5 into standard form

WINSTONCH [101]

First let's write it out with just numbers

6× $10^{5}$

Now solve!

Solve exponent first

10^5 = 100,000

Now multiply

6 x 100,000 = 600,000

600,000 is your answer

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3 years ago

Why is 2 the only even prime number

Temka [501]

Answer:

A prime number is a whole number greater than 1 whose only factors are 1 and itself

two is the only even prime number because it is divisible by only two and one. All the other even numbers are not prime because they are all divisible by two.

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3 years ago

3x + y = 14 y = 5 Solve the system of equations

lorasvet [3.4K]

Answer:

X=3, y=5

Step-by-step explanation:

3x + y = 14 equation 1

y=5 equation 2

3x + 5 = 14. substitute value of y from equation 2 into equation 1

3x=9

x-3

6 0

3 years ago