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Marina86 [1]
3 years ago
11

Which of the following is a true statement?

Mathematics
1 answer:
stepladder [879]3 years ago
6 0
We need to find a expression that is true. Let's try out every one of them until we get a right answer.

If n + 14 = -15 then n = -1.07143

Replace n with -1.07143.

-1.07143 + 14 = <span>12.92857
</span>
<span>12.92857 does not equal 15.

</span>So, the first option is incorrect.

<span>If 14 + n = -15, then n = -1

Replace n with -1

14 + (-1) = 13

13 is not equal to -15.

</span><span>If 14 + n = -15, then n = -29.0 

Replace n with -29.0

</span>-29.0 + 14 = -15

This expression is indeed true.

So, the answer to this question is <span>C If 14 + n = -15, then n = -29.0 </span>
You might be interested in
Given collinear points E, F and G such that point F is the midpoint of segment EG. Find the new length of EG given that EF =5x+9
Veseljchak [2.6K]

Answer:

The length of EG is 58 units

Step-by-step explanation:

The midpoint of a segment divides it into two equal part

Let us use this rule to solve our question

∵ E, F, and G are collinear points

∵ Point F is the midpoint of segment EG

→ That means F divides EG into 2 equal segments EF and FG

∴ EF = FG

∵ EF = 5x + 9

∵ FG = 3x + 17

→ Equate them

∴ 5x + 9 = 3x + 17

→ Subtract 3x from both sides

∵ 5x - 3x + 9 = 3x - 3x + 17

∴ 2x + 9 = 17

→ Subtract 9 from both sides

∴ 2x + 9 - 9 = 17 - 9

∴ 2x = 8

→ Divide both sides by 2 to find x

∵ \frac{2x}{2}=\frac{8}{2}

∴ x = 4

→ Substitute x by 4 in EF and FG to find their lengths

∵ EF = 5(4) + 9 = 20 + 9 = 29

∵ FG = 3(4) + 17 = 12 = 17 = 29

∵ EG = EF + FG

∴ EG = 29 + 29 = 58

∴ The length of EG is 58 units

6 0
2 years ago
A 26' long painting is how many yards long
yaroslaw [1]
Three feet is 1 yard. 26 feet would be 26/3=8 2/3 yards long.
6 0
2 years ago
What is the solution of the system of linear equations below?
Kipish [7]

Answer:

A is the correct answer

Step-by-step explanation:

To get the fastest answer for these kind of questions, you just have to apply (0, -2) into either one of the 2 equations:

2 * 0 - 6 * (-2) = 12

0 - (-12) =12

0 + 12 = 12  (TRUE)

So the solution will be (0, -2)

6 0
3 years ago
Read 2 more answers
I'll give Brainliest!!
scoundrel [369]

Answer:

C

Step-by-step explanation:

The similarity statement is correct. Because they are similar, AB is equal to EF, so to find x, you do x-2=2.2. Solve that and you get x=0.2

5 0
2 years ago
A number is 2 hundreds more than 355, what is the number?
tatiyna
I think it is 555??
355+200=555

7 0
3 years ago
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