The function is f(x)=2x+10
Answer:
6000 square millimeters
Step-by-step explanation:
Side length of the slanting side can be calculated using the Pythagorean theorem,
L = sqrt(30^2+40^2) = 50
sufrace area of a triangular prism
= surface area of the end sections + the surface area of the three side faces
= 2*(30*40/2) + 40*(30+40+50)
= 1200 + 4800
= 6000 mm^2

The last choice is appropriate.
Answer:
Question 1
x = 8
Question 2
x = 3
Step-by-step explanation:
Question 1
3 / 2 = 12/ X
3 * X = 12 * 2
3x = 24
3x / 3 = 24 / 3
x = 8
Question 2
x / 7 = 9 / 21
21 * X = 9 * 7
21 x = 63
21x / 21 = 63 / 21
X = 3
\[f(x)=\frac{9x^2+9x-18}{3x+6}\] is what you mean?