Answer:
Step-by-step explanation:
Answer:
3.24m
Step-by-step explanation:
SOH
sin(26)=O/7.4
O=7.4 sin(26)
O=3.24 (3sf)
Y=x²+8x+14
to make a square, if a is 1, add (half of b)²
in this case, a=1, b=8, half of 8 is 4
y=x²+8x+4²-4²+14
y=(x+4)²-16+14
y=(x+4)²-2
B is the answer.
another way to do it:
the vertex is at x=-b/2a=-8/2*1=-4
when x=-4, y=(-4)²+8(-4)+14=-2
so the equation is y=[x-(-4)]²-2, which is y=(x+4)²-2, the same answer B
Answer:
Width = 10 in
Length = 15 in
Step-by-step explanation:
L / W = 3 / 2
L = 3/2 W
L * W = 3/2 W *W = 3/2 W² = 150
w² = 150 * 2/3 = 100
W = 10 in
L = 15 in
Answer:
Step-by-step explanation:
-4|x +3| = -28
|x +3| = 7
x ∈ [4, -10]
