Answer: 77°
<u>Step-by-step explanation:</u>
In relation to ∠X, 3 is the adjacent side and 13 is the opposite side.
Answer: The answer is C
Step-by-step explanation:
You divide them all you would get 5.
Therefor your answer would be 5:1
Answer:
6 x 4 = 24
Step-by-step explanation:
Answer:
37 units
Step-by-step explanation:
Using the distance formula above,
distance between (15, -17) and (-20, -5)
Answer:
see explanation
see explanationStep-by-step explanation:
21
Note that
(a - )²
= a² - 2 +
= a² + - 2
= 11 - 2
= 9
Thus
(a - )² = 9 ( take the square root of both sides )
a - = 3
22
Since the expression is a perfect square, then
(4x + 5y)²
= 16x² + 40xy + 25y²
Comparing coefficients, then
a - 1 = 40 ( add 1 to both sides )
a = 41
23
99² - 87² ← is a difference of squares and factors as
= (99 - 87)(99 + 87)
= 12 × 186 = 1152, thus
24a = 1152 ( divide both sides by 24 )
a = 48