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Hatshy [7]
3 years ago
11

The measure of A is 90°. Angles A and B are supplementary. What is mB?

Mathematics
2 answers:
KIM [24]3 years ago
8 0
B.90 if angles are supplementary that means they add up to 180 degrees and 90 plus 90 is 180
Umnica [9.8K]3 years ago
3 0

Answer:

B. 90

Step-by-step explanation:

Since the two angles are supplementary, this means they both are on a flat line (180 degrees)

Since both A and B add up to 180, we take that number and subtract A (90) to get our answer: 90 degrees

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Answer:

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Step-by-step explanation:

Given the linear inequality, y > -x - 3, an easier way of determining its graph is through a test point.

A test point is an ordered pair that is not on the actual line of the graph. The point of origin, (0, 0) is often used for this purpose.

Substitute the values of (0, 0) into the linear inequality to find out whether it satisfies the given inequality statement:

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\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~{{ -4}} &,&{{ -1}}~) 
%  (c,d)
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\end{array}
\\\\\\
% slope  = m
slope = {{ m}}\implies 
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\bf \stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-(-1)=-\cfrac{2}{7}[x-(-4)]
\\\\\\
y+1=-\cfrac{2}{7}(x+4)
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