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3 years ago

Practice simplifyin

Mathematics

1 answer:

Andrei [34K]3 years ago

3 0

Answer:

Step-by-step explanation:

6x(x+3)(x-2)

6x(x^2+3x-2x-6)

6x(x^2+x-6)

6x^3+6x^2-36x

------------------------

3(x-2/x+9)

3x-6/x+27

3x^2/x-6/x+27

(3x^2-6)/x+27

(3x^2-6)/x+27x/x

(3x^2-6+27x)/x

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0*2x=0

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x-3=x-3

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2x=2x

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x-9=x-9

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A driver of a car stopped at a gas station to fill up his gas tank. He looked at his watch, and the time read exactly 3:40 p.M.

posledela

Answer:

3.625gpm

Step-by-step explanation:

READ and divide

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3 years ago

For the function f(x)=5x2−5x, evaluate and simplify.

Marianna [84]

9514 1404 393

Answer:

10x -5 +5h

Step-by-step explanation:

Use the function definition with the given arguments.

$\dfrac{f(x+h)-f(x)}{h}=\dfrac{(5(x+h)^2-5(x+h))-(5x^2-5x)}{h}\\\\=\dfrac{(5(x^2+2hx+h^2)-5(x+h))-(5x^2-5x)}{h}\\\\=\dfrac{5x^2+10hx+5h^2-5x-5h-5x^2+5x}{h}=\dfrac{10hx-5h+5h^2}{h}\\\\=\boxed{10x-5+5h}$

7 0

3 years ago

Sue buys 5 pieces of fabric.Each piece is 1 7/10 yards long.What is the total length of the fabric she buys?One yard of the fabr

irina [24]

Answer:

The total length of fabric sue buys is 8.5 yards and total cost of the fabric is $42.5 .

Step-by-step explanation:

As given

Sue buys 5 pieces of fabric.

$Each\ piece\ is\ 1 \frac{7}{10}\ yards\ long.$

i.e

$Each\ piece\ is\ \frac{17}{10}\ yards\ long.$

$Total\ length\ of\ fabric\ sue\ buys = \frac{5\times 17}{10}\ yards$

$Total\ length\ of\ fabric\ sue\ buys = \frac{85}{10}\ yards$

In the decimal form

Total length of fabric sue buys = 8.5 yards

As given

One yard of the fabric costs $5

$Total\ cost\ of\ fabric\ sue\ buys = 8.5\times 5$

= $ 42.5

Therefore the total length of fabric sue buys is 8.5 yards and total cost of the fabric is $42.5 .

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3 years ago

If 4 times the sum of a number and 3 is six less than twice the number, what is the number?

Nat2105 [25]

Answer:

-9

Step-by-step explanation:

4(n + 3) = 2n - 6

4n + 12 = 2n - 6

2n = -18

n = -9

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3 years ago

18 months is the same as 1.5 years.

creativ13 [48]

One year has 12 months therefore...

18/12 = 1 6/12 = 1 1/2

1 1/2 is equivalent to 1.5

True

7 0

3 years ago