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3 years ago

Use the properties of exponents to solve for the each variable.

Mathematics

1 answer:

Wittaler [7]3 years ago

3 0

a=8+2=10; b=4•5=20; c=6-2=4

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Describe the simplest way to find the total surface area of a cube. Pleas hurry help

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The simplest way to find the surface area of a cube is to multiply the length and the width.

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3 years ago

In AXYZ, X = 260 inches, y = 580 inches and ZZ=8°. Find the area of AXYZ, to the

satela [25.4K]

Answer:

10494

Step-by-step explanation:

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2 years ago

The triangle below has a total perimeter of 450 cm:

Korvikt [17]

Equation: 450 = 128 + 150 + n

work:

1st step:
128+150 = 278

2nd step:
450-278 = 172

answer: 172

3rd step (checking) :
450 = 128 + 150 + 172
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3 0

3 years ago

(23.01) In a randomized comparative experiment on the effect of dietary calcium on blood pressure, researchers divided 58 health

Paul [167]

Answer:

$113.7-2.154\frac{9.1}{\sqrt{29}}=110.06$

$113.7+2.154\frac{9.1}{\sqrt{29}}=117.34$

And the 96% confidence is given by (110.06; 117.34)

Step-by-step explanation:

Information given

$\bar X=113.7$ represent the sample mean

$\mu$ population mean (variable of interest)

s=9.1 represent the sample standard deviation

n=29 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=29-1=28$

The Confidence is 0.96 or 96%, the significance is $\alpha=0.04$ and $\alpha/2 =0.02$ , and the critical value would be $t_{\alpha/2}=2.154$

Replacing the info we got:

$113.7-2.154\frac{9.1}{\sqrt{29}}=110.06$

$113.7+2.154\frac{9.1}{\sqrt{29}}=117.34$

And the 96% confidence is given by (110.06; 117.34)

5 0

3 years ago

Please help!!!! i’ll give brainliest

larisa86 [58]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers