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qwelly [4]
3 years ago
5

How do solve an equation?

Mathematics
1 answer:
jolli1 [7]3 years ago
3 0
You simplify both sides and isolate the variable.
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jordan want to double the recipe for the cake he decides to use 4 cup of sugar and 7 cups of flour. is jordan correct or incorre
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2 1/3 cups of sugar and 3/5 of flour that is the answer
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1.9

Step-by-step explanation:

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3 years ago
Helppppp plsssss!!!!!
denpristay [2]

X^2 + 2x -4= 0

You need to remember one standard result

ax^2 + bx + c= 0

x =  \frac{ - b +  -  \sqrt{ {b}^{2}  - 4ac} }{2a}

By Comparing the coefficients,

a= 1, b=2, c=-4

x =  \frac{ - 2 +  -  \sqrt{ {2}^{2} - 4 \times 1 \times  - 4 } }{2 \times 1}  \\   x =  \frac{ - 2 +  -  \sqrt{4 + 16} }{2}  \\  \\  x =   \frac{ - 2  +  -  \sqrt{20} }{2}  \\  \\  x =   \frac{ - 2 +  - 2 \sqrt{5} }{2}  \\  \\ x =  - 1 +  -  \sqrt{5}

Options A ,C

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3 years ago
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marta [7]
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On a train car there are 30 rows of seats and each row has 5 seats .find the total number of seats on 6 train cars .draw a model
Vinil7 [7]

Answer:

900

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30 x 5 = 150 and 150 x 6 = 900. You would make a model with 5 rows of 30, then make 6 of them

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