Which expression is equivalent to?????

Mathematics

2 answers:

Ket [755]3 years ago

8 0

I will do it step by step
(3xy^-5)^3= 27x^3y^-15
(x^-2y^2)^-4= x^8y-8
So the fraction is (27x^3y^-15)/ x^8 y^8= 27 x^-5y^-7
and the whole thing to power of -2 equals to x^10y^14/ 729
answer is A

qwelly [4]3 years ago

7 0

Your first choice is the correct answer and I am 100% sure.

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Will give Brainliest

MaRussiya [10]

Answer:

y-intercept is 2 .

Step-by-step explanation:

Combine 14 1 4 and x x . Rewrite in slope-intercept form. Using the slope-intercept form, the y-intercept is 2 .

5 0

3 years ago

Solve this linear system. 2.4 = 0.3 x + 0.4y 5x = 2 + 6y

hammer [34]

$\left \{ {{2.4 = .3x + .4y} \atop {5x = 2 + 6y}} \right.$

5x = 2 + 6y
Divide both sides by 5
x = 6/5y + 2/5

Input in the other equation.

2.4 = .3(6/5y + 2/5) + .4y
2.4 = .36y + .12 + .4y
2.4 = .76y + .12
Subtract .12 from both sides.
2.28 = .76y
Divide both sides by .76
3 = y

x = 6/5(3) + 2/5
x = 18/5 + 2/5
x = 20/5 = 4

(4, 3)

8 0

4 years ago

What is the realationship between the volume of a cone and the volume of a sphere

patriot [66]

Depending on the size, the cone would have more volume

6 0

4 years ago

From a standard deck of cards, your first draw is a black card. You replace the card, and the second draw is a diamond. Which TH

ladessa [460]

A, B, D

A: because there are two colour types in a deck of cards, so it’s 1/2 probability of getting a black one.

B: because there a four suits in a deck of cards, so the probability of getting a diamond is 1/4

D: because when calculating compound events we multiply the two probabilities,
so 1/2 x 1/4 = 1/8

4 0

3 years ago

Given the function G(r)=8r +4 what does G(8)=?

Marianna [84]

Hi there! The answer is 68.

If we want to find G(8), we must plug in r = 8 into the equation.

$g(8) = 8 \times 8 + 4$
Multiply first

$g(8) = 64 + 4$
Now add

$g(8) = 68$
Hence, the answer is G(8) = 68.

~ Hope this helps you!

3 0

3 years ago

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