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1 answer:
Answer:
Step-by-step explanation:
1)x² - 16x = - 64
x² - 16x + 64= 0
a = 1 ; b = -16 ; c = 64
D = b² - 4ac = (-16)² - 4*1*64 = 256 - 256 =
D = 0
2) 9x² = 9x + 2
9x² - 9x - 2 = 0
D = (-9)² - 4*9*(-2) = 81 + 72
D = 153
3)x² - 3 = x
x² -x - 3 =0
D = (-1)² - 4*1*(-3) = 1 + 12 = 13
D = 13
4) 3x² + 4x + 2=0
D = 4² - 4*3*2 = 16 - 24 = -8
D = -8
5)x² - 4 = 0
D = 0 - 4*1*(-4) = 0 + 16 = 16
D = 16
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Answer:36 marbles
Step-by-step explanation:1/2*3=3/6
1/3*2=2/6 3/6+2/6=5/6 6 marbles = 1/6 of the bag 6*6=36
10) 18/6 is less than or EQUAL TO 3 therefore there are 18 possible number of fruit snacks in the bag
The vertex is at (4,-40). Please leave a good rating and thanks. I really appreciate it. Have a nice day!
42 gallons weigh 7(42) or 294 pounds
<span>each cubic foot weighs 52 pounds </span>
<span>so the number of cubic feet = 294/52 = 5.654 ft^3</span>
