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Ad libitum [116K]

3 years ago

12

Elyse's cell phone plan allowes up to 8 GB of data each month. She received an alert that she used 95% of her Data. How much dat

a does she have left

1 answer:

Goryan [66]3 years ago

3 0

Answer:

She has 400 megabytes left

Step-by-step explanation:

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Chelsea buys 8 packs of markers. Each pack contains the same number of markers. Chelsea gives 10 markers to her brother. Then, s

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I think 36 markers in each pack

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2 years ago

HELP (I WILL GIVE 30 POINTS)

pav-90 [236]

Answer:

4 ± 1/2sqrt(x) = y

This is not a function

Step-by-step explanation:

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

y = (8-2x)^2

To find the inverse function, exchange x and y and then solve for y

x = (8-2y)^2

Take the square root of each side

±sqrt(x) = 8-2y

Subtract 8 from each side

-8±sqrt(x) = 8-8-2y

-8±sqrt(x) = -2y

Divide by -2

-8/-2± 1/2sqrt(x) = -2/-2y

4 ± 1/2sqrt(x) = y

This is not a function

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3 years ago

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Find the sum of the roots of the quadratic x^2 + 7x - 13 = 0

Hoochie [10]

Answer:

-7

Step-by-step explanation:

You use the quadratic formula of $ax^{2} +bx+c = 0$ to get:

a = 1

b = 7

c = -13

then you plug that into x= (-b ± √b²-4ac)/(2a) :

x= ( -7 ± √7²- 4(1)(-13) )/(2(1))

$x=-\frac{7}{2} + \frac{\sqrt{101}}{2} \\\\x=-\frac{7}{2} - \frac{\sqrt{101}}{2}$

The sum of these two x values turns out to be:

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3 years ago

What are the factors of 45

musickatia [10]

The factors of 45 are: 1, 3, 5, 9, 15, 45

Which numbers multiply together to equal 45?
$1 \times 45 = 45 \\ 3 \times 15 = 45 \\ 5 \times 9 = 45$

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