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3 years ago

Sally goes out to lunch and has the option

Mathematics

1 answer:

castortr0y [4]3 years ago

3 0

Hello,

well, that depend on what your asking. comment the answer choices so I can answer this question for you!

-bell

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Divide and find answer

Reika [66]

Answer:

Step-by-step explanation:

11 is A ( i think)

12 i know is c but if wrong im so sorry

hope this helps

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3 years ago

Suppose you produce a camera that costs $50 to make. At a selling price of $45, you will _____.

Daniel [21]

You will lose money. Because $50 to make subtract $45 to sell (50-45) leaves you losing $5.

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3 years ago

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What is an irrational number

postnew [5]

In mathematics, the irrational numbers are all the real numbers which are not rational numbers, the latter being the numbers constructed from ratios of integers.

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4 years ago

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What is the answer to this 4×3^2?<br><br>Evaluate the expression.

Neporo4naja [7]

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3 years ago

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Determine the next step for solving the quadratic equation by completing the square.

Studentka2010 [4]

Answer:

The solutions are $x=\frac{1+\sqrt{7}}{2}$ and $x=\frac{1-\sqrt{7}}{2}$

Step-by-step explanation:

we have

$0=-2x^{2}+2x+3$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$-3=-2x^{2}+2x$

Factor the leading coefficient

$-3=-2(x^{2}-x)$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$-3-0.5=-2(x^{2}-x+0.5^{2})$

$-3.5=-2(x^{2}-x+0.5^{2})$

Rewrite as perfect squares

$-3.5=-2(x-0.5)^{2}$

$7/4=(x-0.5)^{2}$

square root both sides

$x-0.5=(+/-)\sqrt{\frac{7}{4}}$

$x-\frac{1}{2}=(+/-)\frac{\sqrt{7}}{2}$

$x=\frac{1}{2}(+/-)\frac{\sqrt{7}}{2}$

$x=\frac{1+\sqrt{7}}{2}$

$x=\frac{1-\sqrt{7}}{2}$

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3 years ago