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dondre54
31.01.2021 •
Mathematics
Ill give brainliest Find the solutions for these equations
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Answers on questions: Mathematics
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Ответ:
(a+2)(a-4)=0
a+2=0 or a-4=0
ANSWER: a=-2 or a=4
9. 2x^2 + 9x + 4 =0
(2x+1)(x+4)=0
2x+1=0 or x+4=0
ANSWER: x=(-1/2) or x=-4
10. 6x^2 - 8x=8
6x^2 - 8x -8 = 0
2(3x+2)(x-2)=0
3x+2=0 or x-2=0
ANSWER: x=(-2/3) or x=2
11. 9x^2 = -18x
9x^2 + 18x =0
9x(x +2) =0
x=0 or x+2=0
ANSWER: x=0 or x=-2
12. 3x^2 +15x = -18
3x^2 +15x + 18 =0
3(x+2)(x+3)
x+2=0 or x+3=0
ANSWER: x=-2 or x=-3
13. 4y^2 - 10y+6=0
2(y-1)(2y-3)=0
y-1=0 or 2y-3=0
ANSWER: y=1 or y=(3/2)
Ответ:
14 biscuits
Step-by-step explanation:
Since Shawna uses 3/16 of the dough for each biscuit we just need to find how many 3/16ths are in our 2 3/4 cups of dough. To do this, you can just perform the calculation:
or
We don't have enough dough to round up to 15 biscuits, so we only have enough to make 14.