1 year ago

100 EASY POINTS WILL MARK BRAINIEST

1 answer:

5 0

Answer:

a cone would be formed due to the point on the graph forming a triangle, and when a triangle is spun around an axis on one of its sides it will form a cone

Step-by-step explanation:

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What is the measure of the greatest angle of a triangle if the side lengths are 21m, 23m, and 25m

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CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08

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3 years ago

A water tank contains 100 fluid Ounces of water. Jacob fills up cups that hold 8 fl. oz. each. How many cups has he filled when

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7 and a half cups.

Step-by-step explanation:

Dvide 60 by 8

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2 years ago

Will somebody help me understand this better?

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2 years ago

Need help asap What is 2/3 divided by 1/6 ? A)3 B)4 C)4 1/12 D)4 1/2

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The answer is for this mathematical equation is: B)4

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2 years ago

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The Director of Admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem

VMariaS [17]

Answer:

Variance = 24900

Standard Deviation = 157.7973

Step-by-step explanation:

We are given the following in the question:

Number of admissions: 1000 1200 1500

Admissions Probability: 0.6 0.3 0.1

Formula:

$E(x) = \displaystyle\sum x_iP(x_i)\\E(x) = 1000(0.6) + 1200(0.3) + 1500(0.1)\\E(x) = 1110\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\E(x^2) = (1000)^2(0.6) + (1200)^2(0.3) + (1500)^2(0.1)\\E(x^2) = 1257000$

Variance =

$\sigma^2 = E(x^2) - (E(x))^2\\\sigma^2 = 1257000 -(1110)^2\\\sigma^2 =24900$

Thus, the variance is 24900.

Standard Deviation =

$\sigma = \sqrt{\sigma^2} = \sqrt{24900} = 157.7973$

Thus, the standard deviation is 157.7973

7 0

2 years ago