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2 years ago

Brock took 4 piano lessons last month. For each

Mathematics

1 answer:

Nastasia [14]2 years ago

8 0

B and C are the answers

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Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9)

konstantin123 [22]

Answer:

C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

$m = \frac{y_2-y_1}{x_2-x_1}$

The slope of the line that passes through (−12, 15) and (4, −5) is

$m_{1} = \frac{ - 5 - 15}{4 - - 12}$

$m_{1} = \frac{ - 20}{16} = - \frac{5}{4}$

The slope of the line going through (−8, −9) and (16, 21) is

$m_{2} = \frac{21 - - 9}{16 - - 8}$

$m_{2} = \frac{21 + 9}{16 + 8}$

$m_{2} = \frac{30}{24} = \frac{5}{4}$

The product of the two slopes is

$m_{1} \times m_{2} = - \frac{4}{5} \times \frac{5}{4} = - 1$

Since

$m_{1} \times m_{2} = - 1$

the two lines are perpendicular.

4 0

3 years ago

Read 2 more answers

what is the answer for 1/3x+y=4 and if you use big ideas math program and you got the right answer lemme know

erica [24]

Answer:

x=-3y+12

Step-by-step explanation:

Yes.

8 0

3 years ago

What is the constant of proportionality in the table shown ?

solmaris [256]

Answer:

Step-by-step explanation:

6 0

3 years ago

The product of two and x plus the quotient of w and five

Nataly [62]

Answer:

2x+w/5

Step-by-step explanation:

(2*x)+(w/5)

2x +w/5

8 0

3 years ago

FIND THE EXACT VOLUME PLEASE HELP ILL GIVE BRAINLIESTTTT

Eva8 [605]

Answer:

495 in

Step-by-step explanation:

The formula for the volume of a triangular prism is V = $\frac{1}{2}$ · w · h · l, where w represents with, l represents length, and h represents height. Using this and plugging in the values, we can solve.

V = $\frac{1}{2}$ · 5 · 11 · 18

V = 2.5 · 11 · 18

V = 27.5 · 18

V = 495

hope this helps :)

5 0

2 years ago