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4 years ago

Simplify y•y^3•y^2 help

Mathematics

1 answer:

AleksandrR [38]4 years ago

3 0

Answer:y^6

Step-by-step explanation:

For multiplications, of the same base, in this case and, the exponents (1, 2 and 3) are added, resulting in the number 6.

The simplified form is y ^ 6.

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You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h

stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a) we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

$Score = 64 \times \frac{1}{5} = 12.8$

Hence, the expected score is 12.8

Part (b) Compute the variance and standard deviation of x.

Standard Deviation: $\sigma =\sqrt{npq}$

Now calculate the standard deviation as shown:

$\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}$

$\sigma =\sqrt{\frac{256}{25}}$

$\sigma =\frac{16}{5}=3.2$

Variance: $\sigma^2 =npq$

$\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}$

$\sigma^2 =\frac{256}{25}$

$\sigma^2 =10.24$

Hence, the standard deviation is 3.2 and variance is 10.24

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4 years ago

A pack of gum would be considered a(n) _____.

Jobisdone [24]

Answer:

3. Small ticket item

Hope I helped!

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3 years ago

Which value must be added to the expression x2 – 3x to make it a perfect-square trinomial?

Vitek1552 [10]

Answer:

$\frac{9}{4}$

Step-by-step explanation:

Given

x² - 3x

To make the expression a perfect square

add ( half the coefficient of the x- term )²

x² + 2( - $\frac{3}{2}$ )x + $\frac{9}{4}$ , thus

x² - 3x + $\frac{9}{4}$

= (x - $\frac{3}{2}$ )² ← a perfect square

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3 years ago

What is the degree of the polynomial in the expression below?

nata0808 [166]

Answer:

The degree of the polynomial in the expression below is:

A. 7

<em>(hope this helps :3)</em>

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4 years ago

!!!!!!!! Please help!!!!!!!!!

Sergeu [11.5K]

Answer: Pretty sure this Would be A Clustering

Hope it helps

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3 years ago