Answer:
Step-by-step explanation:
The inverse is found by interchanging the x and y values and solve the result for y.
I will use y for f(x)
y = 4x^2
Inverse
x = 4y^2 Divide by 4
x/4 = 4y^2 /4
x/4 = y^2 Take the square root of both sides.
sqrt(x/4) = sqrt(y^2)
y = sqrt(x/4)
g(x) = sqrt(x/4) If you have a very fussy teacher, the inverse function could be written as
g(x) = +/- sqrt(x)/2
I expect that if the question is computer marked, I would try g(x) = sqrt(x)/2 first.
Answer:
x=4
Step-by-step explanation:
32-4=28
28÷7= 4
x=4
Answer:
17.5
Step-by-step explanation:
175% is written as 175/100. If you move the decimal at the end over twice you get 1.75/1 which is just 1.75. You then multiple 10 by 1.75 and you get 17.5
Answer:
Step-by-step explanation:
Two angles each =x because both are equal.
All triangles have angles adding to 180 degrees
The angle that isn't = x is 82 degrees.
x + x + 82 = 180 Subtract 82 from both sides
2x + 82 - 82 = 180 - 82 Combine
2x = 98 Divide by 2
2x/2 = 98/2
x = 49
angle 1 = 49
angle 2 = 49
angle 3 = 82
