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3 years ago

If PR=40, what are PQ and RQ

Mathematics

2 answers:

AleksAgata [21]3 years ago

7 0

PR = PQ + QR = 40

Substitute PR and QR into the equation above

40 = 5x - 2 + x + 12

Combine like terms

40 = 6x + 10

Subtract 10 from both sides

30 = 6x

Divide both sides by 6

5 = x

PQ = 5x - 2= 5(5) - 2 = 23

Remember, PR = PQ + QR

40 = 23 + QR

Subtract 23 from both sides.

17 = QR

PQ = 23

ASHA 777 [7]3 years ago

5 0

Answer:

PQ = 23, QR = 17

Step-by-step explanation:

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3 years ago

A carpenter cut out a small trapezoid as a wooden support for the front step. it has an altitude of 4 inches. One base of the tr

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Area of wooden support is 36 square inches

Solution:

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$area = \frac{a+b}{2} \times h$

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6 0

3 years ago

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3 years ago

Choose the graph below that has an undefined slope.

Ronch [10]

Answer:

The correct option is A.

Step-by-step explanation:

The first line passing through the points (-6,2) and (-6,0).

The slope of a line is

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

The slope of first line is

$m_1=\frac{0-2}{-6-(-6)}=\infty$

The second line passing through the points (0,-4) and (-1,1). The slope of second line is

$m_2=\frac{1-(-4)}{-1-0}=-5$

The third line passing through the points (0,-6) and (2,-6). The slope of third line is

$m_3=\frac{-6-(-6)}{2-0}=0$

The fourth line passing through the points (0,6) and (-3,-7). The slope of fourth line is

$m_4=\frac{-7-6}{-3-0}=\frac{13}{3}$

Since the slope of a vertical line is infinity, Therefore option A is correct.

8 0

3 years ago

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