3 years ago

2x-3(1-x)+7=-5 Please show steps

Mathematics

1 answer:

ad-work [718]3 years ago

7 0

Hope this helps :333

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The question in the box below.

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Answer:

The corret answer is leter B

Step-by-step explanation:

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1 year ago

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Simplify the left side of equation so it looks like the right side. cos(x) + sin(x) tan(x) = sec (x)

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Step-by-step explanation:

Consider LHS

$\cos(x) + \sin(x) \tan(x) = \sec(x)$

Apply quotient identies

$\cos(x) + \sin(x) \times \frac{ \sin(x) }{ \cos(x) } = \sec(x)$

Multiply the fraction and sine.

$\cos(x) + \frac{ \sin {}^{2} (x) }{ \cos(x) } = \sec(x)$

Make cos x a fraction with cos x as it denominator.

$\cos(x) \times \cos(x) = \cos {}^{2} (x)$

$\frac{ \cos {}^{2} (x) }{ \cos(x) } + \frac{ \sin {}^{2} (x) }{ \cos(x) } = \sec(x)$

Pythagorean Identity tells us sin squared and cos squared equals 1 so

$\frac{1}{ \cos(x) } = \sec(x)$

Apply reciprocal identity.

$\sec(x) = \sec(x)$

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3 years ago

Jill filled up the gas tank in her new hybrid car.Jill put 10.3 gallons of gas in her car and she has driven 473.8 miles. Determ

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Jill put 10.3 gallons of gas into her car. She drove for 473.8 miles.

So we have to find how many miles per gallon she drove.

473.8 into 10.3 = 46

To make sure= 10.3 x 46 = 473.8

So Jill drove 46 miles per gallon.

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2 years ago

Y varies inversely with x. if y =7 when x =-4, find x when y =5

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X=-2.857142857142857

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A daily supply of oxygen for a particular multicellular organism is provided by 625 sqaure feet of lawn. A total of 1,250 sqaure

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Answer:

Step-by-step explanation:

From the Question:

For daily supply of oxygen for a particular multicellular organism 625, square feet of lawn I needed.

Simply, 1250 feet of lawn will make supplies for:

= 1250/ 625

= 2

2 multicellular organism.

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3 years ago