Answer:
-3
Step-by-step explanation:
f(x) = x2 – 4
replace x with -1
f(-1) = (-1)^2 – 4
= -3
Answer:
7.5 lb/cu ft
Step-by-step explanation:
75 lb / 10 cu ft = 7.5 lb/cu ft
Answer:
B
Step-by-step explanation:
Angle 4 × Angle 3 = 90
Complementary angles
11x + 4x = 90
15x = 90
x = 6
Angle 3 = 4x = 4(6) = 24°
Answer:
The inequality is 
Step-by-step explanation:
Given : The isosceles triangle with base and side 4x+3, 2x+7.
And the perimeter is at least 137ft.
To write : An inequality for x
Solution : Let the base
and sides 
The perimeter of Isosceles triangle is 
where s=side and b=base
Now, we have given that perimeter is at least 137 ft.
Therefore, the inequality form is



Answer:
Step-by-step explanation:
y + 5 = -1/2(x - 4)
y + 5 = -1/2x + 2
y = -1/2x - 3