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S_A_V [24]
3 years ago
9

Find the value of angle "A" and angle "B"​

Mathematics
2 answers:
Sati [7]3 years ago
8 0

the answer is 31

because 90-59

saul85 [17]3 years ago
3 0

Answer:

31 degrees

Step-by-step explanation:

Not sure where angle B is, but

90-59= 31

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Give the equation of a line that goes through the point ( − 21 , 2 ) and is perpendicular to the line 7 x − 4 y = − 12 . Give yo
nlexa [21]

Given:

Equation of line 7x-4y=-12.

To find:

The equation of line  that goes through the point ( − 21 , 2 ) and is perpendicular to the given line.

Solution:

The given equation of line can be written as

7x-4y+12=0

Slope of line is

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Product of slopes of two perpendicular lines is -1. So, slope of perpendicular line is

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Now, the slope of perpendicular line is m_2=\dfrac{4}{7} and it goes through (-21,2). So, the equation of line is

y-y_1=m_2(x-x_1)

y-2=-\dfrac{4}{7}(x-(-21))

y-2=-\dfrac{4}{7}x-\dfrac{4}{7}(21)

y-2=-\dfrac{4}{7}x-12

y=-\dfrac{4}{7}x-12+2

y=-\dfrac{4}{7}x-10

Therefore, the required equation in slope intercept form is y=-\dfrac{4}{7}x-10.

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