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artcher [175]
3 years ago
5

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
ZanzabumX [31]

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

7 0
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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6 0
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:

6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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