Answer:
Δ = 349
Step-by-step explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 ( a ≠ 0 ) , then the discriminant is
Δ = b² - 4ac
9x² + 5x - 9 = 0 ← is in standard form
with a = 9, b = 5 , c = - 9 , then
b² - 4ac
= 5² - (4 × 9 × - 9)
= 25 - (- 324)
= 25 + 324
= 349
Divide 3.392 by 32 =.106 is the length because width X length = area
5.5% of 19.70.....turn the percent to a decimal...." of " means multiply
0.055 (19.70) = 1.0835 rounded = 1.08 <== tax is 1.08
Answer:
25, 31, 37
Step-by-step explanation:
1 2 3 4 5 6 7 8 9 10
-11 -5 1 7 13 19 25 31 37 43
6 6 6 6 6 6 6 6 6
25 + 31 + 37 = 93
3/8 because its out of 8 contestants n I don't think it includes the 140 audience,including the 30 students being a part if it
