Answer:
f(3) = 3
Step-by-step explanation:
f(x) = 2x^2 – 5x
Let x = 3
f(3) = 2(3)^2 - 5(3)
= 2*9 -15
= 18-15
=3
Answer:
Step-by-step explanation:
Surface area = 4*lateral faces + 2*bases
- A = 4*30 + 2*25 = 170 ft²
Your answer would be A.
according to the 30°, 60°, 90° triangle rules,
side a would equal x

and side c would equal 2x
Answer:
5/12
Step-by-step explanation:
The tangent of an angle is the opposite side divided by the adjacent side, and in this case that would be 5 / 12. Hope this helps!
Answer:

Step-by-step explanation:
The given expresion is

We can rewrite this as:

We obtained a quadratic equation in x²
Let us split the middle term to get:

We factor by grouping to get:

We factor further to get:

The correct answer is A.