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Answer:
x = -7/3 or -5
Step-by-step explanation:
3x^2 + 22x = -35
3x^2 + 22x + 35 = 0
(3x + 7) (x + 5) = 0
so for 3x+7:
3x+7 = 0
3x = -7
x = -7/3
So for x + 5:
x + 5 = 0
x = -5
Answer:
Step-by-step explanation:
Pythagorean theorem:
x² + x² = (9√2)²
2x² = 162
x² = 81
x = 9
10P8 = 10!/(10 - 8)! = 10!/2! = 1,814,400
Answer:
1st class - 22 people
coach - 57 people
Step-by-step explanation:
$85 x 22 people = $1870
$60 x 57 people = $3420
22 people + 57 people = 79 people
$1870 + $3420 = $5290
