Move the 21 to the other side and change the sign
-7-21=x
x=-28
hope this helps
Which set of ordered pairs does NOT represent a function? A) (0, 1), (2, 2), (4, 8), (-2, 7), (5, 8) B) (0, 1), (2, 2), (4, 8),
Viktor [21]
That is B
Because there are duplicate x-values in the ordered pairs, ( the (2,2) and the (2,7).
Answer:
x° = 26.5
Step-by-step explanation:
Each triangle is a right triangle; one angle = 90°, second angle = x° , and the third angle = 63.5° because the 53° + the two angles adjacent to 53° is will = 180° which is the measure of a straight angle and those two angles are equal because the triangles are congruent by HA ; 180° - 53° = 127° ÷ 2 = 63.5°.
Now each triangle angles = 180° so 90° + x° + 63.5° = 180°; 153.5° + x° = 180;
x° = 180 - 153.5; x° =26.5°
