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Misha Larkins [42]
3 years ago
5

What is the measurement of angle x plz help me !

Mathematics
2 answers:
frez [133]3 years ago
8 0

Answer:

x=60 degrees

Step-by-step explanation:

The sum of angles in a triangle is 180 so if all angles in the triangle are equal, you just do 180 divided by 3 to get 60.

Ilia_Sergeevich [38]3 years ago
4 0
x = 60, since its n equilateral triangle
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Please help <br> D=1/3fk solve for k
masha68 [24]

Answer:

<h2>k =  \frac{3D}{f}</h2>

Step-by-step explanation:

<h3>D =  \frac{1}{3} fk</h3>

To solve for k first multiply both sides by 3

That's

<h3>3D = fk</h3>

Next divide both sides by f in order to isolate k

We have

<h3>\frac{fk}{f}  =  \frac{3D}{f}</h3>

Simplify

We have the final answer as

<h3>k =  \frac{3D}{f}</h3>

Hope this helps you

8 0
4 years ago
25% of what number is 300​
Dmitry_Shevchenko [17]
25% is equal to 1/4, so if 300 is 1/4 and we need to find the total, then we should divide 300 by 4.
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Hope this helps.
6 0
4 years ago
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Arm span is the physical measurement of the length of an individual's arms from fingertip to fingertip. A man’s arm span is appr
Damm [24]

Answer:

The 99th percentile for a man’s arm span is 80.47 inches.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 70, \sigma = 4.5

99th percentile

X when Z has a pvalue of 0.99. So X when Z = 2.327.

Z = \frac{X - \mu}{\sigma}

2.327 = \frac{X - 70}{4.5}

X - 70 = 2.327*4.5

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The 99th percentile for a man’s arm span is 80.47 inches.

5 0
3 years ago
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Ilya [14]

Answer:

D.  The subtraction property of equality was not applied to solve this equation.

Step-by-step explanation:

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\sf \dfrac{x}{2}-7=-7

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\implies \sf \dfrac{x}{2}-7+7=-7+7

<u>Step 3</u>:  Simplify

\implies \sf \dfrac{x}{2}=0

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(multiply both sides by 2)

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2 years ago
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Step-by-step explanation:

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