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sammy [17]
3 years ago
10

Which two values of X are roots of the polynomial below?​

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:

C and D

Step-by-step explanation:

As determinant of this quadratic equation is given by-

(-b±√(b²-4ac))/2a

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Marita drives a total of 1,456 miles during her vacation. She drives at an average speed of 52 miles per hour. For how many hour
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Answer:

28 hours

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What is the width of a rug that is 36 1/4 square feet and 8 3/4 wide
blondinia [14]

Answer: 4\frac{1}{7} ft

<u>Step-by-step explanation:</u>

Area (A): 36\frac{1}{4} = \frac{4(36)+1}{4} = \frac{144+1}{4} = \frac{145}{4}

Length (L): 8\frac{3}{4} = \frac{4(8)+3}{4} = \frac{32+3}{4} = \frac{35}{4}

width (w): W

A = L x W

\frac{145}{4} = \frac{35}{4} x W

(\frac{4}{35})\frac{145}{4} = (\frac{4}{35})\frac{35}{4} x W

\frac{4(145)}{35(4)} = \frac{145}{35} = \frac{5(29)}{5(7)} = \frac{29}{7} = W

\frac{29}{7} = \frac{7(4) + 1}{7} = 4\frac{1}{7}

8 0
3 years ago
A cookie recipe for 5 dozen cookies calls for 4 cups of flour. How many is flour is needed to make 90 cookies
azamat
6cups of flour will be needed
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