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3 years ago

Explain why there must be at least two lines on any given plane.

Mathematics

2 answers:

Ghella [55]3 years ago

6 0

There must be 2 lines on every plane because you need a y-axis and an x-axis.

3241004551 [841]3 years ago

5 0

There exists one plane through any three noncollinear points. Since the points cannot be on the same line, at least two lines would have to pass through any of the three points

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HELP ME I NEED HELLLPPP I AM A 6th grater if u ask HELLLPP ME

Ulleksa [173]

Answer:

Multiply by 3;9

Step-by-step explanation:

9/3=3

12/4=3

18/6=3

27/n=3

N=9

8 0

4 years ago

Mark runs to catch a ball. Explain how the structure of muscle tissue helps him perform this function

vichka [17]

Answer:

the answer is below

Step-by-step explanation:

I would say it would help by having a more faster run and stretch.

5 0

3 years ago

A random sample of 12 recent college graduates reported an average starting salary of $54,000 with a standard deviation of $6,00

Marianna [84]

Answer: a.) $50188 to $57812

Step-by-step explanation: Confidence Interval (CI) is an interval of values in which we are confident the true mean is in.

The interval is calculated as

x ± $z\frac{s}{\sqrt{n} }$

a. For a 95% CI, z-value is 1.96.

Solving:

54,000 ± $1.96.\frac{6000}{\sqrt{12} }$

54,000 ± $1.96\frac{6000}{3.464}$

54,000 ± 1.96*1732.102

54,000 ± 3395

This means the interval is

50605 < μ < 57395

With a 95% confidence interval, the mean starting salary of college graduates is between 50605 and 57395 or from 50188 to 57812$.

b. The mean starting salary for college students in 2017 is $50,516, which is in the confidence interval. Therefore, since we 95% sure the real mean is between 50188 and 57812, there was no significant change since 2017.

4 0

3 years ago

Solve equation by using the quadratic formula.

adoni [48]

ANSWER IS C because I looked it up

3 0

3 years ago

Line CD passes through points C(3, –5) and D(6, 0). What is the equation of line CD in standard form?

disa [49]

Just see my atachment.

6 0

3 years ago

Read 2 more answers