3 years ago

Triangle ABC is rotated clockwise to create triangle A’B’C’. What is the angle of rotation?

Mathematics

1 answer:

lukranit [14]3 years ago

5 0

Answer:

90 degrees counterclockwise (ccw)

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An operations analyst counted the number of arrivals per minute at an ATM in each of 30 randomly chosen minutes. The results wer

liraira [26]

Step-by-step explanation:

since Poisson distribution parameter is not given so we have to estimate it from the sample data. The average number of of arrivals per minute at an ATM is

$\hat{\lambda}=\bar{x}=\frac{\sum x}{n}=\frac{30}{30}=1$

So probabaility for $\mathrm{X}=1$ is

$P(X=1)=\frac{e^{-\lambda} \lambda^{x}}{x !}=\frac{e^{-1} \cdot 1^{1}}{1 !}=0.3679$

So expected frequency for $X=1$ is $0.3679^{*} 30=11.037$ (or $\left.11.04\right)$ .

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3 years ago

Solve for x and y: 7y−5x=31 & x=4−2y

horrorfan [7]

7*y - 5*(4-2y) = 7y - 20 +10y = 17y-20 = 31,

y =3, x = -2.

Weird 20 min without answer!

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3 years ago

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A triangle with lengths 12 in, 14 in, and 16 in, what type of triangle is that?

iragen [17]

Answer:

scalene triangle

Picture:

(in attachment)

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3 years ago

2935.88 what is the value of digit 9

frez [133]

900 is the correct answer

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4 years ago

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Determine the slope of a line that is perpendicular to the line whose equation is x - 2y = 6.

Degger [83]

Answer:

The answer is -1/2

Step-by-step explanation:

We first start by removing x in order isolate the y variable

2y = 6 - x

y = $\frac{6-x}{2}$

Further, we simplify the equation in order to get the value of m (slope)

y = 3 + $\frac{-1x}{2}$

Therefore, our slope is equivalent to -1/2

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3 years ago