Answer:
f(- 3) = 8
Step-by-step explanation:
To evaluate f(- 3), substitute x = - 3 into f(x) , that is
f(- 3) = 2(- 3)² - 10 = 2(9) - 10 = 18 - 10 = 8
Answer:
7056
Step-by-step explanationcause its square meeters
B
rearrange into standard form : ax² + bx + c = 0 (a≠ 0)
2x² - 3x - 2 = 0
(x - 2)(2x + 1) = 0 ( equate each factor to zero and solve for x )
x - 2 = 0 ⇒ x = 2
2x + 1 = 0 ⇒ x = - 0.5
5 2/3 gallons of fuel ... 2 hour trip
x gallons of fuel = ? ... 1 hour
If you would like to know how many gallons were used each hour, you can calculate this using the following steps:
5 2/3 * 1 = 2 * x
17/3 = 2 * x /2
x = 17/6 = 2 5/6 gallons of fuel
The correct result would be 2 5/6 gallons of fuel.
Hi there! :)
Let x = number of pounds of grapes and y = cost in dollars:
Find the constant of proportionality by finding the price per pound:
Therefore, the constant of proportionality is H. 2.19
