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3 years ago

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Finding Missing Angle Measures in a Quadrilateral A trapezoid has angles 54 degrees, 54 degrees, x, and x. Look at the trapezoid

shown. What is the measure of angle x? The measure of each angle x is 54° 90° 126° 252°

1 answer:

guapka [62]3 years ago

5 0

Answer:

the answer is C 126°

Step-by-step explanation: well first i picked B 90° and it was wrong then i picked C and i got it right

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In a test of the effectiveness of garlic for lowering cholesterol, 4545 subjects were treated with garlic in a processed tablet

n200080 [17]

Answer:

$5.1 - 2.015 \frac{19.1}{\sqrt{45}}= -0.637$

$5.1 + 2.015 \frac{19.1}{\sqrt{45}}= 10.837$

And for this case since the confidence interval contains the value 0 we don't have significant evidence that we have a net change in the levels

Step-by-step explanation:

For this case we have the following info given:

$n=45$ represent the sample size

$\bar X= 5.1$ represent the sample mean

$s= 19.1$ represent the sample deviation

We can calculate the confidence interval for the mean with the following formula:

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

The confidence level is 0.90 then the significance level would be $\alpha=0.1$ and the degrees of freedom are given by:

$df= n-1 = 45-1=44$

And the critical value for this case would be:

$t_{\alpha/2}=2.015$

And replacing we got:

$5.1 - 2.015 \frac{19.1}{\sqrt{45}}= -0.637$

$5.1 + 2.015 \frac{19.1}{\sqrt{45}}= 10.837$

And for this case since the confidence interval contains the value 0 we don't have significant evidence that we have a net change or efectiveness in the levels

7 0

3 years ago

sweet [91]

Answer:

32

1/4y=8

(4/1)1/4y=8(4/1)

y=32

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3 years ago

Read 2 more answers

Factor x^4 -4x^3 -4x^2 +36x-45

Makovka662 [10]

Factor x^4 -4x^3 -4x^2 +36x-45

Answer:

<h2>(x+3)(x−3)(x^2−4x+5)</h2>

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3 years ago

Bruce added some chlorine to the water in a pool. The chlorine evaporated at a fixed rate every week. The table below shows the

jok3333 [9.3K]

The answer is F(n)=54 (0.5)^(n-1)

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3 years ago

What is the slope of the line?<br> Pls help! I’ll mark the brainliest

VLD [36.1K]

Answer:

m = -3

Step-by-step explanation:

Two poin on this line are (-2, 3) and (0, -3). Both points are formed where grid lines meet precisely.

The change in x as we go from (-2, 3) to (0, -3) is +2 and the change in y is -6. Thus, the slope of the line shown is m = rise/run = -6/2, or m = -3.

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2 years ago