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harkovskaia [24]

4 years ago

9

690x52 show your work

2 answers:

rodikova [14]4 years ago

8 0

Answer:

35,880

Step-by-step explanation:

4

1

690

<u> 52</u>

1380

<u>34500</u>

35880

Hope this helps you!!! :)

atroni [7]4 years ago

5 0

690×52 show your work? 35,880

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Solve the linear equation<br><br> <img src="https://tex.z-dn.net/?f=4%5E%7Bx%2B7%7D%20%3D%208%5E%7B2x-3%7D" id="TexFormula1" tit

GREYUIT [131]

Answer:

x = 5.75

Step-by-step explanation:

4^(x+7) = 8^(2x-3)

But; 4^(x+7) = 2^2(x+7)

8^(2x-3) = 2^3(2x-3)

2^2(x+7) = 2^3(2x-3)

Since the bases are the same;

2(x+7) = 3(2x-3)

2x + 14 = 6x -9

14 + 9 = 6x - 2x

23 = 4x

x = 23/4

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3 years ago

The equation of a circle is x^2+(y+4)^2=1<br> What are it’s center and it’s radius?

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Answer:

see attachment

Step-by-step explanation:

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3 years ago

The Yoga class you wish to take is offering two price quotes: $120 for 5 weeks as (15 classes) or $160 for 8 weeks (24 classes).

True [87]

The answer is B $1.05

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3 years ago

A teacher orders 20 copies of a new graphic novel for his class to read. Each of the books weighs the same amount. The total wei

Maksim231197 [3]

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Each book weighs 1/2 lbs

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3 years ago

Find the solutions to the following linear-quadratic systems algebraically. Select the ordered pair that is one of the correct s

Ghella [55]

Answer:

(-2, 6)

Step-by-step explanation:

we have

$y=x^{2} +3x+8$ ----> equation A

$y=2x+10$ ----> equation B

equate equation A and equation B

$x^{2} +3x+8=2x+10$

$x^{2} +3x+8-2x-10=0$

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

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

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

so

$a=1\\b=1\\c=-2$

substitute in the formula

$x=\frac{-1\pm\sqrt{1^{2}-4(1)(-2)}} {2(1)}$

$x=\frac{-1\pm\sqrt{9}} {2}$

$x=\frac{-1\pm3} {2}$

$x=\frac{-1+3} {2}=1$

$x=\frac{-1-3} {2}=-2$

Find the values of y

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$y=2(1)+10=12$

For x=-2

$y=2(-2)+10=6$

therefore

The solutions are (1,12) and (-2,6)

3 0

3 years ago