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3 years ago

(2-7m^6)^2 i dont know this

1 answer:

7 0

(2-7m^6)^2

rearrange terms:

(2-7m^6)^2

(-7m^6 + 2)^2

expand the squares:

(-7m^6 + 2)^2

(-7m^6 + 2)(-7m^6 + 2)

distribute:

(-7m^6 + 2)(-7m^6 + 2)

-7(-7m^6 + 2) • m^6 + 2(-7m^6 + 2)

distribute:

-7(-7m^6 + 2) • m^6 + 2(-7m^6 + 2)

49m^12 - 14m^6 + 2(-7^6 +2)

distribute:

49m^12 - 14m^6 + 2(-7^6 +2)

49m^12 - 14m^6 - 14m^6 + 4

combine like terms:

49m^12 - 14m^6 - 14m^6 + 4

49m^12 - 28m^6 + 4

solution:

49m^12 - 28m^6 + 4

please mark brainliest and hope it helps

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Answer:

$H=\frac{V}{LW}$

see the explanation

Step-by-step explanation:

we know that

Using inverse operations, the formula can be rearranged to solve for any one of the variables that might be unknown.

we have

$V=LWH$

The operation of multiplication is used in the formula

The inverse operation of division should be used to isolate the variable H

Divide both sides by LW

$\frac{V}{LW}=\frac{LWH}{LW}$

simplify

$H=\frac{V}{LW}$

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4 years ago

You have 72 grams of a radioactive kind of barium. If its half-life is 11 minutes, how much will be left after 22 minutes?

lara [203]

None because half is 36 which is 11 minutes so 22 minutes would mean nothing is left

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2 years ago

X²+2x-15=0 Solving quadratic equations using factorising

Lina20 [59]

Answer: (x+5)(x-3)

Explanation:

Write 2x as a difference so (that also =15) so 5x-3x

That end up being x^2+5x-3x-15 now putting into factorisation (x+5)(x-3)

Hope this helps:)

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2 years ago

A rectangle has side lengths of (2x+3) and (3x - 4).

Sergeu [11.5K]

Answer:

Area=6x^2+9x-12 Perimeter= 5x-1

Step-by-step explanation:

when finding the are of a rectangle you multiply both sides together.

(2x+3)*(3x-4)

Distributive Property

6x^2-8x+9x-12

Simplify

6x^2+x-12

To find the Perimeter you have to add both sides

2x+3+3x-4

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3 years ago

Write an exponential function that passes through (0, 3) and (1, 6).

Ilya [14]

Answer: y=x^8-x^7+x^6-x^5+x^4+x^3+x^2+3

Step-by-step explanation:

here is an example function that satisfies the requirement:

y=x^8-x^7+x^6-x^5+x^4+x^3+x^2+3

if you plug in x=0,

you get y= 3, which satisfies (0,3)

if you plug in x=1,

you get y = 1 - 1 + 1 - 1 + 1 + 1 + 1 + 3,

you get y=6, which satisfies (1,6)

3 0

3 years ago