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Ray Of Light [21]
3 years ago
6

Im not verry good at these can you help me please​

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

It is A

Step-by-step explanation:

A because, you multiply -2 on both sides on the side with the x it cancels out on the one with the 5 it turns into -10 so the answer would be A

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Rewrite the expression in the form x^n
LUCKY_DIMON [66]

Answer:

x^{-2}

Step-by-step explanation:

\frac{x^{6}}{x^{8}}\\ = x^{6-8} = x^{-2}

6 0
3 years ago
Mr hopper did the rest need help
Contact [7]

Let g = graph paper and r = ruler

1st equation: 5g + 30r = 40

2nd equation: 12g + 20r = 44

Multiply the 2nd equation by -1.5 to cancel out the r's

2nd equation: 12g + 20r = 44 x -1.5 = -18g - 30r = -66

Now add the 1st equation to that:

-18g + 5g = -13g

30r -30r = 0

40 -66 = -26

The new equation becomes -13g = -26

Divide both sides by -13

g = -26 / -13

g = 2

This means each pack of graph paper cost $2.

Now replace g with 2 in the first equation to solve for the cost of a rule:

5(2) + 30r = 40

Simplify:

10 + 30r = 40

Subtract 10 from each side:

30r = 30

Divide both sides by 30:

r = 30 / 30

r = 1

Each rule cost $1.

7 0
4 years ago
Read 2 more answers
Janice examines the given triangle and estimates that
den301095 [7]

Answer:

Janice examines the given triangle and estimates that the longest side has a length of 25 units―if it is a right triangle. How does her estimate compare to the actual length? It is under by approximately 0.6 units.

Step-by-step explanation:

4 0
3 years ago
If a woman takes an early pregnancy test, she will either test positive, meaning that the test says she is pregnant, or test neg
k0ka [10]

Answer:

0.0098

Step-by-step explanation:

Probability of being pregnant:100/1000

=1/10.

98% chance:=98/100 ×1/10

=98/1000

Therefore the probability that she really is pregnant is: 0.098

3 0
3 years ago
HELP i dont know how to do this
Korvikt [17]

Answer

A

Step-by-step explanation:

First, lets go through B-D and explain why they are correct.

B= f represents the number of flash drives. This means that the coefficient, 10, would be the cost per flash drive.

C= n represents the number of cases of paper. it says so in the question, so that one is a bit easier.

D= f represents the amount of packages of hanging folders. If the coefficient for B is the cost, then that would be the same case for D. Therefore it is correct because the coefficient is 13.

A would be incorrect because the coefficient represents the amount that one item costs. P is the packs of pencils, meaning that it would be $7 per pack of pencils.


Hope this helps!

3 0
4 years ago
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