3 years ago

I suck at math and i really need help asap!

Mathematics

2 answers:

den301095 [7]3 years ago

8 0

Answer:

I think the answers are F and C... Not sure if it's right... lmk please!!

AlladinOne [14]3 years ago

3 0

Answer:

Step-by-step explanation:

2^{4-3}

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Gre4nikov [31]

Answer:

y=−7−(√161/4), −7+(√161)/4

Decimal form- y=1.42214438, -4.92214438

Step-by-step explanation:

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3 years ago

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

Group of answer choices Phone A Phone B Phone C Phone D

Otrada [13]

Answer:

Phone B

Step-by-step explanation:

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3 years ago

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A handyman charges a fixed rate of R to visit a customers house. In addition, the hardy man charges an hourly rate for H for eac

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Answer:

T == R + NH

Step-by-step explanation:

The fixed rate R is added to the hourly charges to get the total T. The hourly charges are the product of the number of hours and the charge per hour, NH.

The sum is then ...

... T = R + NH

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3 years ago

Which algebraic expresion is a polynomial with a degree of 2

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A polynomial with a degree of 2 can be:

x² + 1

y² + 2

etc..

hope this helps

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3 years ago