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dolphi86 [110]
3 years ago
12

I NEED HELP ASAP PLEASE!!!!!!

Mathematics
1 answer:
Colt1911 [192]3 years ago
6 0
Use an app on your phone just make sure you pick a gods one it will give you the answer I am not that good at math tho
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Brainiest if correct or first<br> -5/12-(-3/4)
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0.333

Step-by-step explanation:
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Three thousand four hundred seventy seven ten thousandth standard decimal form
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What are the features of the parabola modeled by the equation f(x) = x2 - 114x ?
notsponge [240]

Answer:

Answers are in bold type

Step-by-step explanation:

f(x) = x^{2} -144x

The parabola opens up, so has a minimum at the vertex.

Let (h, k) be the vertex

h = -b/2a = - (-144)/2(1) = 57

k = 57^2 - 144(57) = 3249 - 6498 = -3249

Therefore, the vertex is (57, -3249)

The minimum value is -3249

The domain is the set of real numbers.  

The  range = {y | y ≥ -3249}

The function decreases when -∞ < x < 57  and increases when 57 > x > ∞

The x - intercepts:  x^{2} -144x = 0

                                x(x - 114x) = 0

                                x = 0 or x = 114

x-intercepts are (0, 0) and (0, 114)

When x = 0, then we get the y-intercept.  So, 0^2 - 114(0) = 0

y-intercept is (0, 0)

3 0
3 years ago
The sale price of an item is $330 after a 25% discount. What was the original price of the item?
Ber [7]
The original price was 412.5
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2 years ago
Solve the system by substitution.<br> y = –2x + 18<br> y = -4x<br> HURRY PLEASE
Irina-Kira [14]

Answer:

x = -9

Step-by-step explanation:

x = -y/4

y = -2(-y/4) + 18

y = y/2 + 18

y/2 = 18

y = 36

x = -36/4

x = -9

5 0
2 years ago
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