10(4^2-(9)
Since 16-9 is 7
And 10 times 7 is 70
Answer:
140°
Step-by-step explanation:
The other angle inside is 40 so 180-40 is 140°
4x+3 because you divide the number of each
Answer:
A. x = -2, 5/2
B. Minimum
Vertex: (1/4, -81/8)
C. Draw a concave up graph connecting the x-intercepts, vertex and the y-intercept
Step-by-step explanation:
f(x) = 2x² - x - 10
2x² - x - 10 = 0
2x² - 5x + 4x - 10 = 0
x(2x - 5) + 2(2x - 5) = 0
(x + 2)(2x - 5) = 0
x = -2, 5/2
Vertex: (h,k)
h = midpoint of the x-intercepts (due to symmetry)
h = (-2 + 5/2) = 1/4
k = f(1/4)
k = 2(1/4)² - 1/4 - 10 = -81/8
Vertex: (1/4, -81/8)
y-intercept: when x = 0
2(0)² - 0 - 10 = -10
Draw a concave up quadratic connecting thr following points:
(-2,0)
(0,-10)
(1/4,-81/4)
(5/2,0)
Answer:
f(4) = -42
Step-by-step explanation:
f(x) = -10x - 2
f(4) 0r x = 4
Plug In 4 for X then solve
f(4) = -10 x 4 -2
f(4) = -40 -2
f(4) = -42
