3 years ago

Expand (x-2)^7 using binomial theorem

Mathematics

1 answer:

Nastasia [14]3 years ago

5 0

Answer:

x^7-14x^6+84x^5-280x^4+560x^3-672x^2+448x^2-128

Step-by-step explanation:

ends are x^7 and 120^7, and use the therom in the middle

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Andru [333]

Answer:

x = -31.5

Explanation:

We are given that the quotient of x and -1.5 is 21

This means that:

$\frac{x}{-1.5} =21$

To get the value of x, we will multiply both sides of the equation by -1.5

This means that:

$\frac{x}{-1.5} * -1.5=21*-1.5$

x = -31.5

Note that the value of x must be negative because we are dividing by a negative number and the quotient is positive (-ve/-ve is +ve and +ve/-ve is -ve)

Hope this helps :)

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In a box of crayons, 24% of the crayons are blue.There are 48 blue crayons in the box.

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D. There are 200 crayons in the box. If you just made it 25% of 200 is 50 which is the closest number to answer based on a quick estimation:)

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Solve the system of the following equations:

schepotkina [342]

The answer is (5,-2)

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–x – 7 = 16 please help me

atroni [7]

Move the -7 to the right, its sign will flip (do you know why?)
Negate both sides to change -x to x

-x = 16+7
-x = 23
x = -23

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3 years ago

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Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5:2:3.

Vlad [161]

5:2:3
5+2+3=10

If she has double of plum juice the ratio will be

10:4:6
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So she can make 20 cups of fruit punch.

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