Answer:
3
Step-by-step explanation:
divide -105 into -35
double negative equals a positive
therefore your answer is 3
Answer:
In 9, use tan, in 10 use inverse tan
Step-by-step explanation:
in 11 use cos, in 12 use tan
Answer:
$70.50
Step-by-step explanation:
8.50 x 8 = 68
68 + 75 = 143
143 - 72.50 = 70.50
Answer:
a=21
b=69
c=42
d=138
Step-by-step explanation:
c is supplementary to d (which is 138), so c=180-138= 42.
angle b is on the edge of the central angle 138, so b is 1/2, therefore, b=69.
angle a is complementary to angle b because any triangle that includes the diameter is a right angle, so angle a=90-69=21.
Since 540 is a whole number, it cannot be simplified anymore.
