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OLga [1]
3 years ago
9

Alexa deposit $600 in her checking account. She wrote a check for $600 to pay for a DVD player. Then, she made another deposit o

f $315. How much money does Alexa have in her bank account?
Mathematics
1 answer:
asambeis [7]3 years ago
6 0

Answer:

$315

Step-by-step explanation:

600-600=0

0+315=315

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9/7 x (-9/5)<br> please help!
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One of two or more Expressions that are multiplied together to get a product
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3 years ago
The following graph describes function 1 and the equation below it describes function 2:
Tanya [424]
Function 1: 
f(x) = -x² + 8(x-15)f(x) = -x² <span>+ 8x - 120
Function 2:
</span>f(x) = -x² + 4x+1
Taking derivative will find the highest point of the parabola, since the slope of the parabola at its maximum is 0, and the derivative will allow us to find that.
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Function 2 derivative:  -2x+4 ⇒ -2x + 4 = 0 ⇒ -2x = -4 ⇒ x = -4/-2 ⇒  x= 2
Function 1: f(x) = -x² <span>+ 8x - 120 ; x = 4
f(4) = -4</span>² + 8(4) - 120 = 16 + 32 - 120 = -72
<span>
Function 2: </span>f(x) = -x²<span> + 4x+1 ; x = 2
</span>f(2) = -2² + 4(2) + 1 = 4 + 8 + 1 = 13

Function 2 has the larger maximum.
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3 years ago
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Strike441 [17]

Answer:The equation of the parabola is y=18(x−2)2−3

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2 years ago
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