Answer:
25.5
Step-by-step explanation:
because you have to do 25×1.50 -12
Answer:
y = -6
Step-by-step explanation:
y is multiplied by 3 and 20 is added to the sum. We undo these operations in reverse order.
First we subtract 20 from both sides of the equation:
3y = -18
Then we divide both sides of the equation by 3 to undo the multiplication.
y = -18/3 = -6
The solution is y = -6.
Answer:
f(1)=-3
f(-4)=-11
f(6)=0
Step-by-step explanation:
Use the correct formula depending on what (x) equals.
When (x=1) you use the second formula because 1 is greater than -2 but less than 4
When (x=-4) you use the first formula because -4 is less than -2
When (x=6) you use the third formula because 6 is greater than 4
Answer:
4 inches
Step-by-step explanation:
The surface area, A of a right square pyramid is given by :
A = a² + 2as
Where, s = height of each triangular surface = x
a = base edge of pyramid
Substituting values into the equation :
A = 84 in² ; a = 6 in ; Slant height, s = x
84 = 6² + 2(6 * x)
84 = 36 + 2(6x)
84 = 36 + 12x
84 - 36 = 12x
48 = 12x
48/12 = 12x / 12
4 = x
Hence, Slant height, x = 4 inches
