Answer:
B.120 feet
Step-by-step explanation:
12 × 20 × 10 = 120
In order to do this problem:
Divide
18/(2/3)=
27
The answer is 27 miles
Answer:
450
Step-by-step explanation:
Multiply the length (30) by the width (15)
30x15=450
Answer:
f(x) = x² - 2x - 15
Step-by-step explanation:
∵ The function intersect x-axis at -3 and 5
∴ f(x) = 0 at x = -3 , 5
∵ The form of the quadratic equation is ⇒ ax² + -b/a x + c/a = 0
ax² - b/a x + c/a = 0
Where the sum of its roots is b/a and their multiplication is c/a
∵ a = 1
∵ -3 , 5 are the roots of the quadratic equation
∴ b = -3 + 5 = 2
∴ c = -3 × 5 = -15
∴ f(x) = x² - 2x - 15
