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2 years ago

11

Dont really understand

2 answers:

sdas [7]2 years ago

8 0

Remember the formula for cubes likes this. It is base times height times width.
So, therefore, the answer would be F 768

Llana [10]2 years ago

3 0

Area is base times height, so take the 12 and 16 and multiply them, you will get 192 which is your answer

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Find the value of x.

KatRina [158]

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A or B

Step-by-step explanation:

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2 years ago

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At a certain clothing store, the clothes are displayed on racks. The clothes on each rack have similar prices but the prices amo

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2 years ago

-x - 11 and the opposite of -11

likoan [24]

Answer:

The opposite of -11 is 11, and I dont understand what else you're asking

Step-by-step explanation:

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2 years ago

A rectangle's length, x, is 2 meters greater than its width. If the perimeter of the rectangle is greater than 112 meters, what

kotykmax [81]

Assume widthis x-2
perimeter is 2*(width+length)
so 2*(x+x-1)>112
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6 0

2 years ago

I need help please with this 1 problem

Lyrx [107]

Answer:

See below, please

Step-by-step explanation:

We know

$f(x) = {x}^{2} + 3x - 7$

$g(x) = 3x + 5$

$h(x) = 2 {x}^{2} - 4$

Hence

$f(g(x))$

$= {(3x + 5)}^{2} + 3 \times (3x + 5) - 7$

$= (9 {x}^{2} + 30x + 25) + (9x + 15) - 7$

$= 9 {x}^{2} + 39x + 33$

$h(g(x))$

$= 2 \times {(3x + 5)}^{2} - 4$

$2 \times (9 {x}^{2} + 30x + 25) - 4$

$= 18 {x}^{2} + 60x + 50 - 4$

$= 18 {x}^{2} + 60x + 46$

$(h - f)(x)$

$= h(x) - f(x)$

$= (2 {x}^{2} - 4) - ( {x}^{2} + 3x - 7)$

$= {x}^{2} - 3x + 3$

$(f + g)(x)$

$= f(x) + g(x)$

$= ( {x}^{2} + 3x - 7) + (3x + 5)$

$= {x}^{2} + 6x - 2$

5 0

1 year ago