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vova2212 [387]
3 years ago
14

Could someone answer these problems ?

Mathematics
2 answers:
max2010maxim [7]3 years ago
7 0

Answer:

8. $18.11

10. 71

Step-by-step explanation:

25.63 - 7.52 = 18.11

90 - 19 = She is old. JK

90 - 19 = 71

Lelu [443]3 years ago
6 0

Answer:

She received $18.11

Step-by-step explanation:

25.63-7.52= $18.11

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What are the features of the parabola modeled by the equation f(x) = x2 - 114x ?
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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
6^2-49•1/7<br><br><br> PLEASE HELP <br><br><br> 6^2-49 ( times) 1/7
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Arlecino [84]

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The EU has challenged the U.S."s position in the global economy. True or False
enot [183]

Answer:

False

Step-by-step explanation:

EU and the US are very good friends and they often trade with them.

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3 years ago
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I am confused and i dont know how i would do this
Crank

Answer:

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Step-by-step explanation:

I do 12 x 12 x 10 x 4= 5760

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