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2 years ago

HEEEELPPPPPP

Mathematics

1 answer:

AnnZ [28]2 years ago

7 0

Answer:

D. The graph of this equation can be any straight line.

Step-by-step explanation:

Because A ≠ 0, it can be any number above or below 0.

Because B = 0, the line can only be a horizontal line. The line can be at any point on a graph, though, because A does not have any specific number that it equates to.

I hope this helped!

You might be interested in

Write a decimal for >1.45 to make the comparison true

Softa [21]

Answer:

> this sign means greater than so any number that is greater than 1.45 would work.

2.34 or 1.47, any number above 1.45 will be an excellent answer

Hope this helps ;)

5 0

3 years ago

In a study to establish the absolute threshold of hearing, 80 male college freshmen were each seated in a soundproof room and a

Norma-Jean [14]

Answer:

Step-by-step explanation:

Hello!

To study the threshold of hering the researcher took a random sample of 80 male college freshmen.

The students underwent an audiometry test where a tome was played and they had to press a button when they detected it. The researcher recorded the lowest stimulus level at which the tone was detected obtaining a sample mean of X[bar]= 22.2 dB and a standard deviation of S= 2.1 dB

To estimate the population mean, since we don't have information about the variable distribution but the sample size is greater than 30, you can use the approximation of the standard normal distribution:

X[bar] ± $Z_{1-\alpha /2} * \frac{S}{\sqrt{n} }$

Where the semiamplitude or margin of error of the interval is:

d= $Z_{1-\alpha /2} * \frac{S}{\sqrt{n} }$

Using a 95% level $Z_{0.975}= 1.965$

d= 1.965 * $\frac{2.1}{\sqrt{80} }$

d= 0.46

The point estimate of the population mean of the threshold of hearing for male college freshmen is X[bar]= 22.2 db

And the estimation using a 95%CI is [21.74;22.66]

I hope this helps!

8 0

3 years ago

Evaluate the expression. ab if a = 6 and b = 7

Misha Larkins [42]

Answer:

Step-by-step explanation:

6x7=42

4 0

2 years ago

Read 2 more answers

Suppose two parallel lines are cut by a transversal. What angle relationships describe congruent angles in this context?

baherus [9]

Answer:

Corresponding angles

Step-by-step explanation:

In elementary geometry the word congruent is often used as follows.

Two line segments are congruent if they have the same length.

Two angles are congruent if they have the same measure.

Two circles are congruent if they have the same diameter.

The eight angles that are produced as a result of two parallel lines are cut by a transversal will together form four pairs of corresponding angles. Corresponding angles are congruent. All angles that have the same position with regards to the parallel lines and the transversal are corresponding pairs.

5 0

3 years ago

Read 2 more answers

Find the coordinates of the midpoint of the segment whose endpoints are R(9, 3) and S(-1, -9).

amm1812

Answer:

$(4, -3 )$