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Nady [450]
3 years ago
10

Out of 2 9 15 21 is not a composite

Mathematics
2 answers:
Lana71 [14]3 years ago
4 0

Answer:

2

Step-by-step explanation:

2 is actually a prime number because composite numbers have more than 2 factors but prime numbers don't.

Harrizon [31]3 years ago
4 0
Answer: 2 Your Welcome!
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True or face dilations preserve angle measure
Ilia_Sergeevich [38]

Answer:

True

Step-by-step explanation:

Required

Does dilation preserve angle measure?

When a point, side, line, or angle is dilated; the length of the line will be altered by the ratio or scale of dilation.

However, the measure of angle will remain the same.

<em>Hence, the given statement is true.</em>

6 0
3 years ago
What is the difference 1/9 - 5/6 a 13/18 b 1/18 c - 1/18 d -13/18
Murrr4er [49]
1/9 - 5/6

Convert both of them into denominators of 18.

2/18 - 15/18

Subtract the numerators and keep the denominator:

-13/18
3 0
3 years ago
Help asap!! Means a lot. 46 pts (:
adell [148]
Slope = (-7+4) / (7-1) = -3/6 = -1/2

using point (1,-4)
equation y + 4 = -1/2(x - 1)

answer is C. 
 y + 4 = -1/2(x - 1)
8 0
3 years ago
Read 2 more answers
What is 5,267 rounded to the nearest ten?
Soloha48 [4]

Answer:

2,270

Step-by-step explanation:

If you look at the last two numbers, then you can see that the closest ten to 67 is 70.

8 0
3 years ago
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Use the substitution method to solve the system of equations
PilotLPTM [1.2K]

You solve the substitution method to solve a system of equality by expressing one variable in terms of the other using one equation, and then plugging this expression in the other(s).

In this case, the first equation gives us a way to express n in terms of m. So, we can replace every occurrence of n in the second equation with the given formula.

The result is

14m+2n=-8 \iff 14m+2(-7m-4)=-8 \iff 14m-14m-8=-8 \iff -8=-8

So, the second equation turned to be an equality, i.e. an equation where both sides are the same.

This implies that the system has infinitely many solutions, because every couple (n,m) such that n=-7m-4 is a solution to the system, because it satisfies both equations: the first is trivially satisfied, whereas the second is an identity, and as such is satisfied by any value of the variable.

3 0
3 years ago
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