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3 years ago

Simplify the expression x^-4×y^3×x^4×y^2.

1 answer:

4 0

For simplifying an expression like this where the same bases with different exponents are to be multiplied, remember the Product rule. It says that when multiplying two or more powers having the same base (x and y in this case), you must add the exponents. For example, here in this expression there are two x's and two y's with different powers so you can simple add the powers of x and for y like shown below:

x^-4×y^3×x^4×y^2

= x^(-4+4) × y^(3+2)

=x^1 × y^5

since x^1 = x so we can omit the power 1 and write x instead.

xy^5 (here the power 5 only raises y and not x since it is not applied to whole)

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Zinaida [17]

Answer:

D) 168

Step-by-step explanation:

So 12 months in a year

each month tcket sells out for 7 times

2 years=24 months becuase 12*2

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24*7=168

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2 years ago

Read 2 more answers

How do you do #1 & #2 ?

Alexeev081 [22]

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2 years ago

A book sold 35,100 copies in its first month of release. Suppose this represents 9.2% of the number of copies sold to date. How

inessss [21]

Answer:

Total number of copies sold till date are 381522.

Step-by-step explanation:

It is given in the question the book sold 35100 copies in its first month of release and this number is 9.2% of the number of copies sold till date.

To find is how many copies have been sold.

Let the total number of copies sold be = A

Therefore 9.2% × A = 35100

$\frac{9.2}{100}A=35100$

$A=\frac{35100\times 100}{9.2}$

A = 381521.74 ≅381522 copies

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3 years ago

The owner of a football team claims that the average attendance at games is over 523, and he is therefore justified in moving th

USPshnik [31]

Answer:

C) There is not sufficient evidence to support the claim that the mean attendance is greater than 523.

Step-by-step explanation:

Let μ be the the average attendance at games of the football team

The claim: the average attendance at games is over 523

Null and alternative hypotheses are:

$H_{0}$ : μ=523

$H_{a}$ : μ>523

The conclusion is failure to reject the null hypothesis.

This means that test statistic is lower than critical value. Therefore it is not significant, there is no significant evidence to accept the alternative hypothesis.

That is no significant evidence that the average attendance at games of the football team is greater than 523.

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2 years ago

Under a dilation centered at the origin, the point (-4 , 3) has image at (8 , -6) The dilation is _____

Sveta_85 [38]

Answer:

Step-by-step explanation:

see the image for the explanation

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3 years ago