The sine of any acute angle is equal to the cosine of its complement. The cosine of any acute angle is equal to the sine of its complement. of any acute angle equals its cofunction of the angle's complement.
A
C
B
Since m∠A = 22º is given, we know m∠B = 68º since there are 180º in the triangle. Since the measures of these acute angles of a right triangle add to 90º, we know these acute angles are complementary. ∠A is the complement of ∠B, and ∠B is the complement of ∠A.
If we write, m∠B = 90º - m∠A (or m∠A = 90º - m∠B ), and we substitute into the original observation, we have:
You have to use exponents before you have to use the paratheses.
8 + 3(7² × 4) - 5 ÷ 2
8 + 3(49 + 4) - 5 ÷ 2
8 + 3(53) - 5 ÷ 2
8 + 159 - 5 ÷ 2
167 + 5 ÷ 2
162 ÷ 2
81
It should be -35 because negative interfere represent below zero
Answer: 49 5/6 feet^2
26/3•23/4=598/12
Get to a mixed number
49 10/12
Simplify
49 5/6
0 box 36 singles
1 box 26 singles
2 boxes 16 singles
3 boxes 6 singles