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2 years ago

Which expression is equivalent to 15x^-3z^5/3x^7z^-5 please answer spr fast

Mathematics

2 answers:

ratelena [41]2 years ago

6 0

Answer:

Step-by-step explanation:

Answer:

5^4

Law Incorporation [45]2 years ago

3 0

Answer:

$5x^{-10}z^{10$

Step-by-step explanation:

Given

$\frac{15x^{-3}z^5}{3x^7z^{-5}}$

Required

Evaluate

$\frac{15x^{-3}z^5}{3x^7z^{-5}}$

Start by dividing 15 by 3

$\frac{5x^{-3}z^5}{x^7z^{-5}}$

Apply the following law of indices on indices x and z

$\frac{a^m}{a^n} = a^{m-n$

So, the expression becomes:

$5x^{-3-7}z^{5-(-5)$

$5x^{-3-7}z^{5+5$

$5x^{-10}z^{10$

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Read 2 more answers

Find two supplementary angels such that the measure of the first angle is 38° less than three times the measure of the second

stiks02 [169]

angle 1+ angle 2=180 supplementary angles add up to 180

angle 2=x assign angle a variable

angle 1= 3x-38 find equation for first angle

3x+x-38=180 set both angles added together equal to 180

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4x=218 add 38 to both sides

x=54.5 divide by 4