3 years ago

Can someone help I’ll give points

Mathematics

1 answer:

Vanyuwa [196]3 years ago

7 0

The answer is A

2 is the y spot, then rise over run

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I am a student in need pls help me

solmaris [256]

Answer:

2*400= 2*400*1

2*400

800

2 x 400 = 2 x 100 x 4

100 x 4

= 400

I hope this helps:

Sorry if it didn't :(

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3 years ago

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Which of the binomials below is a factor of this trinomial?

My name is Ann [436]

X² + 4x + 4 = (x+2)²

B. x + 2

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3 years ago

A random sample of 84 students at a university showed an average age of 22 years and a sample standard deviation of 3 years. Fin

Debora [2.8K]

Answer:

The margin of error for the 94% confidence interval is 0.6154.

Step-by-step explanation:

The (1 - α)% confidence interval for population mean is:

$CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

The margin of error of this interval is:

$MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

The critical value of z for 94% confidence level is, z = 1.88.

Compute the margin of error for the 94% confidence interval as follows:

$MOE=z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}$

$=1.88\times\frac{3}{\sqrt{84}}\\\\=0.6154$

Thus, the margin of error for the 94% confidence interval is 0.6154.

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2 years ago

Find the value of the lesser root of x2 - 6x + 8 = 0.

Ulleksa [173]

Answer:

Step-by-step explanation:

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3 years ago

The shaded area of the shape below rounded to the nearest whole number is: 8 cm 8 cm

maks197457 [2]

Answer:

Step-by-step explanation:

8x8=64

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2 years ago

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