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aleksandrvk [35]
3 years ago
9

Kelly, Jess, Sam and Evan are running for student council. Show all the ways that a president and vice president can be elected.

Mathematics
1 answer:
djyliett [7]3 years ago
4 0
Kelly, Jess
Kelly, Sam
Kelly, Evan
Jess, Sam
Jess, Evan
Sam, Evan
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Simplify the square root. Please explain
Alex787 [66]

Answer:

4/5

Step-by-step explanation:

Square of 1: 1*1=1

Square of 2: 2*2=4

Square of 3: 3*3=9

<u>Square of 4: 4*4=16</u>

<u>Square of 5: 5*5=25</u>

Square of 6: 6*6=36

Square of 7: 7*7=49

Square of 8: 8*8=64

Square of 9: 9*9=81

Square of 10: 10*10=100

Those are the basics.

I hope this helps!

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5 0
3 years ago
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Find the inverse of the function <br> f (x) = -8x + 9
garri49 [273]

Answer:

y=\frac{x-9}{-8}

Step-by-step explanation:

1. change f(x) to y

2. switch x and y

x= -8y+9

3. solve for y

x-9=-8y

y= \frac{x-9}{-8}

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2 years ago
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Help me solve these equations
boyakko [2]

\left\{\begin{array}{ccc}3x-7y=20&|\cdot10\\11x+10y=5&|\cdot7\end{array}\right\\\underline{+\left\{\begin{array}{ccc}30x-70y=200\\77x+70y=35\end{array}\right}\ \ \ \ |\text{add both sides of the equations}\\\\.\ \ \ \ \ 107x=235\ \ \ \ |:107\\.\ \ \ \ \ \ \ \ \ \ x=\dfrac{235}{107}\\\\\text{substitute the value of x to the second equation}\\\\11\cdot\dfrac{235}{107}+10y=5\\\\\dfrac{2585}{107}+10y=\dfrac{535}{107}\ \ \ \ |-\dfrac{2585}{107}\\\\10y=-\dfrac{2050}{107}\ \ \ \ |:10\\\\y=-\dfrac{205}{107}

Answer:\ x=\dfrac{235}{107},\ y=-\dfrac{205}{107}

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3 years ago
What does the word ''expression'' mean in this paragraph
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Step-by-step explanation:

u have to give a photo of the question or something I can go off of to answer

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What is the simplest form of this expression?<br> 2y(-8y? + 2) + 7y
Nataly_w [17]

Answer:

Simplify the expression.

− 16 y^ 2 ? + 11 y

Step-by-step explanation:

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