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3 years ago

If r is the midpoint of AB and AR=14, then AB=______

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

4 0

Answer:

Step-by-step explanation:

The midpoint is halfway, so if half the length is 14 then the full length is 28 (14 × 2 = 28)

Hope this helps!

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(3,4) and (12,19) find the equation of the line that passes through it

harina [27]

Answer:

The equation of the line will be:

$y=\frac{5}{3}x-1$

Step-by-step explanation:

Given the points

(3, 4)

(12, 9)

Finding the slope between (3, 4) and (12, 9)

$\left(x_1,\:y_1\right)=\left(3,\:4\right),\:\left(x_2,\:y_2\right)=\left(12,\:19\right)$

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$m=\frac{19-4}{12-3}$

$m=\frac{5}{3}$

The equation of the line can be obtained using the point-slope form of the equation of the line

$y-y_1=m\left(x-x_1\right)$

substituting the values m = 5/9 and the point (3, 4)

$y-4=\frac{5}{3}\left(x-3\right)$

$y-4+4=\frac{5}{3}\left(x-3\right)+4$

$y=\frac{5}{3}x-1$

Therefore, the equation of the line will be:

$y=\frac{5}{3}x-1$

5 0

2 years ago

David earns $11 an hour. He was scheduled to work 35 hours. However, he picked up an additional 7 hour shift. He is paid double

zhenek [66]

You have in total 42 hours so 2 of those hours are double time so you do 40•11 and then add 22•2 (22 is the double time) so you’re answer is $484

7 0

3 years ago

Use a calculator to find 5 as a percentage of 135 correct to 1 decimal place.

stich3 [128]

Step-by-step explanation:

$\frac{5}{135} \times 100\% = 3.703\% \\ \\ = 3.7\%$

7 0

3 years ago

20 points<br> For the function f defined by f(x)=3x2−2x+5 find f(−x),−f(x) , and −f(−x).

vekshin1

F (x) -f(x) add the negative on the outside of the F

3 0

3 years ago

Read 2 more answers

What is the slope of the line on the graph? 1/2 <br>2 <br>-2 <br>-1/2

Sav [38]

Answer: $\frac{1}{2}$

Step-by-step explanation:

to find the slope use the formula $\frac{rise}{run}$

in this case, the line goes up 1 unit and to the right two

this means the slope is :

⇒ $\frac{1}{2}$

8 0

2 years ago