Answer:
B. 50°
Step-by-step explanation:
Use the tangent ratio, then use the inverse to find the angle of elevation, X°
Answer:
(8, 11)
Step-by-step explanation:
The 2-point form of the equation of a line is useful for the one where only points are given.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
y = (3 -1)/(4 -3)(x -3) +1
y = 2(x -3) +1
We can equate this to the expression for y in the given equation.
x +3 = 2(x -3) +1
x +3 = 2x -5 . . . . . . eliminate parentheses
8 = x . . . . . . . . . . . . add 5-x
Using the given equation, we can find y:
y = x +3 = 8 +3
y = 11
The solution to the system is (x, y) = (8, 11).
Answer:
-1
Step-by-step explanation:
x+x+2x=-2-2
4x=-4
x=-1
Answer: 91
Step-by-step explanation:
4 (4 x 4) + 3 (3 x 3)
= 4 (16) + 3 (3 x 3)
= 64 + 3 (3 x 3)
= 64 + 3 (9)
= 64 + 27
= 91
Answer:
52.8
Step-by-step explanation:
3x5 =15 × 3 =45
1.5 x 2.6 = 3.9 x 2 =7.8
Combine