2 years ago

Expand (4x+3y)^5....

Mathematics

1 answer:

timofeeve [1]2 years ago

4 0

$(4x+3y)*(4x+3y)*(4x+3y)*(4x+3y)*(4x+3y)$
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2x2 − 4x = 0 A. 0, -4 B. 0, -2 C. 0, 2 D. 2, 4

leonid [27]

Answer:

Step-by-step explanation:

We see that we can factor out 2x from the equation! So our equation becomes 2x(x-2) = 0.

Since the only way for things to multiply to equal to zero is if at least one of the numbers is 0.

So if x-2 is the 0, then x = 2.

If 2x is the 0, then x = 0.

So our answer is C. 0,2

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3 years ago

Researchers at Gallup were interested in whether there was a decrease in the proportion of nonretirees (in other words, people w

Lera25 [3.4K]

Answer:

A. We have extremely strong evidence to reject H0.

Step-by-step explanation:

Let P be the proportion of non-retirees in 2015 who did not think that Social Security would be able to pay a retirement benefit by the time that they retire.

According to the data null and alternative hypotheses should be:

$H_{0}$ : P=0.60

$H_{a}$ : P<0.60

Test statistics is -4.29 and p-value of the statistics is p<0.001

At every significance levels higher than 0.001, we can reject the null hypothesis since p<0.001.

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3 years ago

Sasha had $1800 and share it in the ratio 2:3:4 between her 3 cousin what was the largest share

PilotLPTM [1.2K]

Answer:

$800

Step-by-step explanation:

$total \: units \: = \\ 2 + 3 + 4 = 9 \: units \\ 9 \: units \: = 1800 \\ 1 \: unit \: = 1800 \div 9 \: = 200 \\ largest \: share \: = 4 \: units \\ 4 \: units \: = \: 200 \times 4 = 800$