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SSSSS [86.1K]
3 years ago
8

Sandy plays tennis once every 6 six days. Jim plays once every 8 eight days. If

Mathematics
1 answer:
andrezito [222]3 years ago
5 0

Answer:

Step-by-step explanation:

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Someone please help me thank you
german

Answer:

4

Step-by-step explanation:

7x = x² - 8

=> x² - 7x - 8 = 0

use quadratic formula:

a = 1, b = -7, c = -8

x = \frac{-(1)±\sqrt{(-7)^{2} - 4(1)(-8) } }{2(1)} <em>(pls ignore the "A" I don't know why it's showing up)</em>

=> x = \frac{-1±\sqrt{49 + 32} }{2}

=> x = \frac{-1±9 }{2}

=> x = \frac{-1 +9}{2} = 4 or \frac{-1-9}{2} = -5 <em>(the answer is only 4 since it's asking for the positive solution)</em>

6 0
3 years ago
Read 2 more answers
Solve the linear equation by combining like terms: 23 + 7 - 2x = 8x
Aleks [24]

Answer:

23+7-2x=8x

We simplify the equation to the form, which is simple to understand  

23+7-2x=8x

We move all terms containing x to the left and all other terms to the right.  

-2x-8x=-23-7

We simplify left and right side of the equation.  

-10x=-30

We divide both sides of the equation by -10 to get x.  

x=3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
= Initial Knowledge Check Rewrite the expression by factoring out (y+9). 3y^2 (y + 9) + 7(y+9)​
alex41 [277]

Answer:

3y {}^{2} (y + 9) + 7(y + 9) \\  = (y + 9)(3y { }^{2}  + 7)

6 0
3 years ago
Select an expression that is equivalent to <img src="https://tex.z-dn.net/?f=4%5Csqrt%7Bx%5Cfrac%7B2%7D%7B3%7D%20%7D" id="TexFor
qwelly [4]
Maybe A I’m not one hundred percent sure but good luck
7 0
4 years ago
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-3.25 (5 continues forever) ○ -3.2 (2 continues forever) Greater than or less than​
vazorg [7]

Answer:

Less than.    <

Step-by-step explanation:

8 0
3 years ago
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