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sdas [7]
3 years ago
15

Simplify the expression. helppp me plz do it right (xy)3·(–3x4y2)

Mathematics
2 answers:
klemol [59]3 years ago
7 0
I suggest you get photo math

Maru [420]3 years ago
7 0

Answer:

-3x^7y^5

Step-by-step explanation:

I assume the number 3 after parentheses is an exponent. I also assume that 4 after x and 2 after y are exponents. If so, please use the symbol ^ to show clearly it's an exponent.

(xy)^3 · (-3x^4y^2) =

= x^3 * y^3 * (-3x^4y^2)

= -3x^7y^5

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When she adds 2 to both sides, the equation 4x = 3x results. Which solution will best illustrate what happens to x ?
Natasha2012 [34]

Step-by-step explanation:

4x=3x

2+4x=3x+2

4x-3x=2-2

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x=1/0

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(i think the question given was incomplete but this waht i could do with the given statement)

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3 years ago
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Thomas earned $38.25 for cleaning the garage. Hewas paid $4.25 per hour. How many hours did it take him to clean the garage? a.
aleksandrvk [35]

Step-by-step explanation:

$38.25/$4.25 ×1hr

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8 0
2 years ago
What is the result of subtracting the second equation from the first?<br> -2x+y=0<br> - 7x + 3y = 2
artcher [175]

Answer:

5x - 2y = - 2

Step-by-step explanation:

Given the 2 equations

- 2x + y = 0 → (1)

- 7x + 3y = 2 → (2)

Subtracting (2) from (1) term by term

- 2x - (- 7x) + y - 3y = 0 - 2, that is

- 2x + 7x - 2y = - 2

5x - 2y = - 2

6 0
3 years ago
2. In the ratio of 3:2:2, three brothers invested a total of 249,000 to open a store. Find each
GaryK [48]

Answer:

$106,714.29

$71,142.86

$71,142.86

Step-by-step explanation:

There's a total of 7 pieces that they invested (3 + 2 + 2 = 7) so you can do 249,000 / 7 to find what each piece was worth.

249000/7 = about 35571.43

(you always have to round money to 2 decimal places)

Then the amount each brother spent would be:

3 * 35571.43 = 106714.29

2 * 35571.43 = 71142.86

2 * 35571.43 = 71142.86

8 0
2 years ago
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