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3 years ago

Directions: Simplify the following monomials.SHOW ALL STEPS!

Mathematics

2 answers:

Simora [160]3 years ago

7 0

19.)

$\frac{ - 4x - 3 + 96 {a}^{2} b}{6b}$

hope it helps

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Softa [21]3 years ago

5 0

HERE IS YOUR ANS AFTER A LOT OF RESEARCH ! ^-^

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Answer:

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Step-by-step explanation:

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4 years ago

Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′.

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3 years ago

Read 2 more answers

A survey of 25 randomly selected customers found the ages shown (in years). The mean is 32.64 years and the standard deviation i

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Answer:

See below for answers and explanations

Step-by-step explanation:

Part A

Assuming that conditions have been met for the interval, we use the formula $\displaystyle CI=\bar{x}\pm t\frac{s}{\sqrt{n}}$ where $\bar{x}$ represents the sample mean, $t$ represents the critical value, $s$ represents the sample standard deviation, and $n$ is the sample size.

The critical value of $t$ for an 80% confidence level with degrees of freedom $df=n-1=25-1=24$ is equivalent to $t=1.317836$

Thus, we can compute the confidence interval:

$\displaystyle CI=\bar{x}\pm t\frac{s}{\sqrt{n}}\\\\CI=32.64\pm1.317836\biggr(\frac{9.39}{\sqrt{25}}\biggr)\\\\CI\approx\{30.17,35.11\}$

Therefore, we are 80% confident that the true mean age of all customers is between 30.17 and 35.11 years.

Part B

The margin of error is $\displaystyle t\frac{s}{\sqrt{n}}=1.317836\biggr(\frac{9.39}{\sqrt{25}}\biggr)\approx2.47$

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3 years ago

Find the width of a cereal box that has a volume of 5,568 cm3 and is 29 cm long and 48 cm high.

jeka94

Check the picture below.

$\textit{volume of a rectangular prism}\\\\ V=Lwh~~ \begin{cases} L=length\\ w=width\\ h=height\\[-0.5em] \hrulefill\\ L=29\\ h=48\\ V=5568 \end{cases}\implies \begin{array}{llll} 5568=(29)w(48)\implies \cfrac{5568}{(29)(48)}=w \\\\\\ 4=w \end{array}$

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2 years ago

B(n)=−1(2) ^n−1 What is the 5th term in the sequence?

Rashid [163]

Answer:

Step-by-step explanation:

aₙ = 2ⁿ⁻¹

a₅ = 2⁴⁻¹ =2³=8

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3 years ago