Answer:
4.33333333333 or 4 and 1/3
Step-by-step explanation:
Answer:
Step-by-step explanation:
x² = 19x + 12
⇔ x² - 19x - 12 = 0
Calculating the discriminant :
b² - 4ac = (-19)² - 4×1×(-12) = 409
The discriminant is positive ,then the equation has two solutions.
Answer:
21.
Step-by-step explanation:
f(x) = 2x^2 - 3x + 7.
When x = -2,
f(-2) = 2(-2)^2 - 3(-2) + 7
= 2(4) - (-6) + 7
= 8 + 6 + 7
= 21.
Answer:
A. 11/3
Step-by-step explanation:
11/3 is saying 11 dived by 3, and in the short story the 11-inch string is being cut (divide) into 3 parts.
Hope this helped!
Answer:
$160
Step-by-step explanation:
80 * $2
$160
Answer: $160
