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wlad13 [49]
3 years ago
5

Math test pls help me

Mathematics
1 answer:
Natalija [7]3 years ago
3 0

Answer:

D. \frac{45}{x^{10}}

Step-by-step explanation:

(3 {x}^{ - 4} )^{2} (5 {x}^{ - 2} ) \\  \\  = (9 {x}^{ - 8} )(5 {x}^{ - 2} ) \\  \\  = 9 \times 5 \times  {x}^{ - 8 - 2}  \\  \\  = 45 {x}^{ - 10}  \\  \\  =  \frac{45}{ {x}^{10} }

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How would solve for 2x – 17y = 13 for y
Andrews [41]

2x - 17y = 13

Since we don't have the the value of x we would set x = 0

2(0) - 17y = 13

And solve

-17y = 13

y = -13/17

You would do the same if you're solving for x

2x - 17(0) = 13

2x = 13

x = 13/2

(I'm not sure if you are missing anything but based on the information provided this is how I would solve it.)

7 0
4 years ago
Solve for x. 5 = 1/5x -3​
Sav [38]

Answer:

40.

Step-by-step explanation:

5=1/5x-3

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7 0
3 years ago
7-18=______+______=______
ra1l [238]

7-18= a negative number. We know that it'll equal a negative number because the minued(7) is less than the subtrahend(18), which results in a negative number (if both are positive).

We can make an addition problem from this. We can have 18 turn negative and 7 stay positive, and we'll get the same answer.

7+-18=7-18

7-18=7+-18=11

8 0
3 years ago
Complete the statement. Round to the nearest hundredth, if necessary.
Kaylis [27]
If you get 5L in 1 min, you will get 300 L in an hour
8 0
4 years ago
Compare the ratios 3:8 and 1:2 1. write ratios as fractions. 3:8 and 1:2 2. find a common denominator. 2 is a faction of 8, so t
xenn [34]

Answer:

1:2 > 3:8

Step-by-step explanation:

Given

Ratio_1 = 3:8

Ratio_2 = 1:2

Required

Compare both ratios

Ratio_1 = 3:8

Ratio_2 = 1:2

Multiply ratio 2 by 4

Ratio_1 = 3:8

Ratio_2 = 1 * 4:2 * 4

This gives:

Ratio_1 = 3:8

Ratio_2 = 4:8

Write both ratios as fractions

Ratio_1 = \frac{3}{8}

Ratio_2 = \frac{4}{8}

Get decimal equivalent:

Ratio_1 = 0.375

Ratio_2 = 0.5

Comparing both, we have that

Ratio_2 > Ratio_1

0.5 > 0.375

Conclusively;

1:2 > 3:8

6 0
3 years ago
Read 2 more answers
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