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3 years ago

Please help me ill give brianliest

Mathematics

1 answer:

NemiM [27]3 years ago

8 0

Answer:

61.25 cm^3

Step-by-step explanation:

V=whl=3.5·2.5·7=61.25

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Please help answer the question.

muminat

Answer:

a. $\dfrac{y^8}{x^{10}}$

Step-by-step explanation:

First step is ti distribute the exponent outside the parenthesis. According to the law of exponents, you need to distribute it to each variable.

$\left(\dfrac{x^{-4}y}{x^{-9}y^5}\right)^{-2}\\\\=\dfrac{x^{(-4\times-2)}y^{(1\times-2)}}{x^{(-9\times-2)}y^{(5\times-2)}}\\\\=\dfrac{x^{8}y^{-2}}{x^{18}y^{-10}}$

Now again, following the law of exponents, if you have negative exponents, you put them in the opposite side of the fraction.

$=\dfrac{x^8y^{-2}}{x^{18}y^{-10}}\\\\=\dfrac{x^8y^{10}}{x^{18}y^{2}}\\\\$

Next, when it comes to division, we subtract the exponents of the numerator and the denominator of similar variables.

$=\dfrac{x^8y^{10}}{x^{18}y^{2}}\\\\=x^{(8-18)}y^{(10-2)}\\\\=x^{-10}y^8$

Since the exponent of x is negative, we move it below the fraction.

$\dfrac{y^8}{x^{10}}$

6 0

3 years ago

A car averages 27 miles per gallon if gas costs $4.04 a gallon, which of the following is closest to how much the gas would cost

Lorico [155]

First divide 2,727 by 27, which gives you 101. Then multiply 101 by $4.04.
This gives you D, $408.04

3 0

4 years ago

if √1.225=1.107,√12.25=3.5 and √100=10, evaluate √12.25. solve this is my assignment tomorrow in school

pashok25 [27]

Answer:

$3\frac{1}{2} = \sqrt{12\frac{1}{4}}$

Step-by-step explanation:

All you do is square 3,5 right back to get 12,25 again.

I am joyous to assist you anytime.

4 0

4 years ago

If a normal random variable has a mean = _____ and a standard deviation = _____, it is called a standard normal distribution.gro

Valentin [98]

If a normal random variable has mean of 0 and standard deviation of 1, it is called a standard normal distribution.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

$Z = \frac{X - \mu}{\sigma}$

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

For the standard normal distribution, the mean and the standard deviation are given, respectively, by:

$\mu = 0, \sigma = 1$

More can be learned about the normal distribution at brainly.com/question/24537145

#SPJ1

7 0

1 year ago

The length of each side of a square is 3 inches more than the length of each side of a smaller square. the sum of the areas of t

lisabon 2012 [21]

Answer:

Have you ever had a dream that, that, um, that you had, uh, that you had to, you could, you do, you wit, you wa, you could do so, you do you could, you want, you wanted him to do you so much you could do anything?

Step-by-step explanation:

3 0

3 years ago