Answer:
Step-by-step explanation: -b ± √(b² - 4ac)
Let's solve for x using the quadratic formula x = ------------------------
2a
In this case the coefficients are 2, -7 and 9, so the discriminant, b^2 - 4ac, is (-7)^2 - 4(2)(9), or 49 - 72 = -23.
The roots (zeros) of this quadratic are thus:
-(-7) ± i√23
x = ----------------------
4
or
7 ±i√23
x = -------------------
4
35 if whole number
34.7 to 1 dp
34.72 to 2dp
Answer:
Francine uses the number of cup of pine apple juice is 2 cups
hope my answer is helpful to you
plz mark me as brainlist and also follow me
Archy: 15 gallons ... $23.85
1 gallon ...$ x = ?
x * 15 = 1 * 23.85 /15
x = 23.85 / 15
x = $1.59 per gallon
Joe: 16 gallons ... $24.48
1 gallon ... $ y = ?
y * 16 = 1 * 24.48 /16
y = 24.48 / 16
y = $1.53 per gallon
Result: Joe paid less per gallon.
