Answer:
27 + 36 = 63
A. (9 + 3)(9 + 4) = 12 × 13 = 156
B. 9(3 + 4) = 9 × 7 = 63
C. 9 + (3 × 4) = 9 + 12 = 21
D. (9 × 3)(9 × 4) = 27 + 36 = 63
Option B and D
Step-by-step explanation:
(-3,5) and (x,y)
Slope = (y - 5)/[x - (-3)] = (y - 5)/(x + 3)
(y - 5)/(x + 3) = -1/4
y - 5 = -1/4(x + 3)
y - 5 = (-1/4)x - 3/4
y = (-1/4)x - 3/4 + 5
y = (-1/4)x + 17/4.
Use the Pythagorean theorem: a² + b² = c²
c = hypotenuse (which means) = 53
a and b are equal to the side length
So a = 21.
Use the formula and solve.
21² + b² = 53²
441 + b² = 2809
b² = 2368
b = 48.66210024238575 or 8√37
