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3 years ago

7

What is the point- slope equation of the line through the point (-5, 5) that is perpendicular to the line whose equation is y= (

5/3)x + 2? URGENT

1 answer:

Igoryamba3 years ago

7 0

Slope=-3/5. BBC be C. Be c. Be. C be

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The amount of tax for each camera is $5.25 and the tax rate is 6% explain how the equation original cost times percent equals ta

lina2011 [118]

Answer:

The equation is adjusted by dividing the tax amount by the percent to find the original cost. Dividing by the percent is the inverse operation of multiplying by percent.

If this question is from edge 2021 it's 100% right.

4 0

3 years ago

What are the solutions of the quadratic equation?<br> 5x^2+51x+54 = 0

pentagon [3]

X = - 6/5 or x=-9 !!!!!!!!!!!!!

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3 years ago

Suppose that time spent on hold per call with customer service at a large telecom company is normally distributed with a mean µ

lana66690 [7]

Answer:

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8 minutes

Standard Deviation, σ = 2.5 minutes

Sample size, n = 25

We are given that the distribution of time spent is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{2.5}{\sqrt{25}} = 0.5$

P(sample mean is between 7.8 and 8.2 minutes)

$P(7.8 \leq x \leq 8.2)\\\\ = P(\displaystyle\frac{7.8 - 8}{0.5} \leq z \leq \displaystyle\frac{8.2-8}{0.5})\\\\ = P(-0.4 \leq z \leq 0.4})\\\\= P(z < 0.4) - P(z < -0.4)\\\\= 0.6554 -0.3446= 0.3108$

0.3108 is the probability that the sample mean is between 7.8 and 8.2 minutes.

4 0

4 years ago

Semenov [28]

Answer:

x = 1/20s so s=0

Step-by-step explanation:

1. 80xs/80s = 4/80s

2. you will get: 1/20s so technically 2=0

8 0

4 years ago

Solve p + 15 = 4.

Otrada [13]

Answer:

C

Step-by-step explanation:

Given

p + 15 = 4 ( isolate p by subtracting 15 from both sides )

p = - 11 → C

8 0

3 years ago

Read 2 more answers