3 years ago

Which of the following prove that (-9)(4) = -36?

Mathematics

1 answer:

Luba_88 [7]3 years ago

4 0

Answer:

C If I lost 9 pounds every month for 4 months in a row, then I lost 36 pounds.

Step-by-step explanation:

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Richard goes electronics store. He buys 2 memory cards that cost 8.99 each and 3 packages of batteries that are on sales for 7.4

Licemer1 [7]

His total is (73.37) hope it helps and have a great day!

3 0

3 years ago

Solve the system by substitution.

kirill [66]

<h2>Answer:</h2>

x = 1

y = 1

<h3>Step-by-step explanation:</h3>

$y=-3x+4\\ y=x$

Substitute into one of the equations

$-3x+4=x$

Rearrange variables to the left sider of the equation

$-3x-x=-4$

Combine like terms

$-4x=-4$

Divide both sides of the equation by the coefficient of variable

$x=\frac{-4}{-4}$

Determine the sign for multiplication or division

$x=\frac{4}{4}$

Cross out the common factor

$x=1$

Substitute into one of the equations

$y=1$

The solution of the system is

$\left \{ {{x=1} \atop {y=1}} \right.$

<em>I hope this helps you</em>

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2 years ago

X=7^y how can you rewrite this equation in y = form ?

Anuta_ua [19.1K]

Answer:

y = lnx / ln 7.

Step-by-step explanation:

x = 7^y

Take logarithms of both sides:

ln x = ln 7^y

ln x = y ln 7 ( because ln a^b = b ln a. One of the Laws of Logarithms).

y = lnx / ln 7.

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3 years ago

Barbara earns $492.00 per week. She is single and claims 1 allowance. Her state tax rate is 2.8 percent and her local tax rate i

Zarrin [17]

Her next pay is to me

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3 years ago

There are 7 terms in a finite arithmetic sequence, and the first term is 11.

jonny [76]

I say the answer is d I might be wrong.

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