2 years ago

What’s the correct answer

Mathematics

1 answer:

serious [3.7K]2 years ago

6 0

I think it the answer is A

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3+4 40+3 30+4 which of these is another way to write

zhuklara [117]

(3+4) (40+3) (30+4)
= 7 + 47 + 34
= (7+47) +35
= 54 + 35
= 89

8 0

2 years ago

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Write the equation of the line in fully simplified slope-intercept form.

FrozenT [24]

Step-by-step explanation:

y — yı = m(x – xı) equation of a line

Points A(1,3) and B(2,1)

Slope (m) = (y2 – y1) / (x2 – x1)

(1 –3) / (2 – 1)

–2/1

–2

Thus, y –3 = –2 (x – 1)

y – 3 = –2x + 2

y –3 + 3 = –2x + 2 + 3

y = –2x + 5

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2 years ago

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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2 years ago

The variable z is directly proportional to x. When x is 6, z has the value 60. What is the value of z when x = 11?

user100 [1]

Answer:

110

Step-by-step explanation:

z is apparently 10 times x.

10 times 11 is 110.

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2 years ago

Put these numbers in order from least to greatest 0.8 1/4 0.9 0.5

Elena L [17]

Least 0.5, 1/4, 0.8, 0.9 greatest

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2 years ago

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