3 years ago

Help me please******

Mathematics

1 answer:

Ronch [10]3 years ago

4 0

The answer to this equation is B I think

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Each day of the week mrs uses 3/4 of a gallon of gas what is the amount she uses in five days?

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Answer:

3.75

Step-by-step explanation:

3/4 times 5 =3 3/4

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1 year ago

Solving one step equations 1/4 a = 3

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Answer:

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Step-by-step explanation:

$\frac{1}{4} a = 3$

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$\frac{1a}{4} = \frac{3}{1}$

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3 years ago

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Step-by-step explanation:

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3 years ago

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Sin^22x - 2cos2x + 2=0

zhuklara [117]

Answer:

x=πn, n∈Z

Step-by-step explanation:

if sin²2x=1-cos²2x, then

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$\left[\begin{array}{cc}cos2x+3=0\\cos2x-1=0\\\end{array} \ \ \left[\begin{array}{cc}x \ 'does-not-exist'\\cos2x=1\\\end{array} \ \ 2x=2\pi n, n=Z \ x=\pi n, n=Z$

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2 years ago