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3 years ago

The lines shown below are parallel. If the green line has a slope of 5, what is the slope of the red line?

2 answers:

7 0

The slope of the red line would be 5 as well as long as the lines are parallel. If it were perpendicular, or made an x, then the slope would be (1/5)<span />

ratelena [41]3 years ago

3 0

Answer:

Step-by-step explanation:

If the lines described are parallel, this means that they will have the same slope. If the green line has a slope of 5, then the red one will also have a slope of 5. Parallel lines are those that do not meet. These lines do not touch or intersect at any point. Moreover, these lines are always the same distance apart (<em>equidistant</em>).

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How many students text during class? A student created an anonymous survey asking students whether or not they text in class. Of

Misha Larkins [42]

Answer:

1 quantitative

2 32 responded yes, 18 responded no

3 margin error 32%{n}

4 error of students on their phone / not

5 18/-/50

6 16%

7 2%

Step-by-step explanation:

a 95% confidence interval with a 4 percent margin of error means that your statistic will be within 4 percentage points of the real population value 95% of the time.

The margin of error tells you the range of values above and below a confidence interval.

8 0

3 years ago

Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa

kondor19780726 [428]

Answer: 0.6827

Step-by-step explanation:

Given : Mean IQ score : $\mu=105$

Standard deviation : $\sigma=15$

We assume that adults have IQ scores that are normally distributed .

Let x be the random variable that represents the IQ score of adults .

z-score : $z=\dfrac{x-\mu}{\sigma}$

For x= 90

$z=\dfrac{90-105}{15}\approx-1$

For x= 120

$z=\dfrac{120-105}{15}\approx1$

By using the standard normal distribution table , we have

The p-value : $P(90$

$P(z$

Hence, the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827

5 0

3 years ago

Read 2 more answers

Calculate the marked price(original price)if after 20% discount, the price of an article.

Elina [12.6K]

Answer: An article was sold at a 20% discount, at Rs. 400. What was its marked price?

Let M denotes the required marked price of the given article.

Hence from above data we get following relation,

(1 - 20/100)*M = 400

or (4/5)*M = 400

or M = (5/4)*400 = 500 (Rs) [Ans]

Step-by-step explanation:

4 0

3 years ago

Help me plz thanks. :)

andre [41]

Answer:

ok ,so it. will be 4 ..................

7 0

3 years ago

An aircraft seam requires 24 rivets. The seam will have to be reworked if any of these rivets is defective. Suppose rivets are d

ruslelena [56]

Answer:

(a) 0.007238 or 07238%

(b) 0.003468 or 0.3468%

Step-by-step explanation:

(a) Since all it takes is one defective rivet for a seam to be reworked. The probability of a defective rivet 'p' for 16% of seams needing reworking is:

$1-(1-p)^{24} = 0.16\\1-p = \sqrt[24]{0.84}\\p=0.007238$

The probability that a rivet is defective 0.007238 or 0.7238%.

(b) To ensure that only 8% of seams need reworking, the probability 'p' must be:

$1-(1-p)^{24} = 0.08\\1-p = \sqrt[24]{0.92}\\p=0.003468$

In order to ensure that only 8% of all seams need reworking, the probability of a defective rivet should be 0.003468 or 0.3468%.

5 0

3 years ago