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Sonbull [250]
3 years ago
6

GET 35 POINTS! I need help with these 3 questions!!

Mathematics
1 answer:
mr_godi [17]3 years ago
8 0
1<
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3Honolulu; Washington, D.C.; Nome; Base Esperanza
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15) Amy is playing a video game. She
MariettaO [177]
8-10=-2
-2+5=3
3+7=10
10-(-20)=-10
Final score is -10 points
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3 years ago
The hourly cost of renting office space in Manhattan is shown by the graph below. The hourly cost of renting office space in Bro
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Brooklyn is more expensive

Step-by-step explanation:

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3 years ago
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Alice solved the following equation:
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A.because -18 changes into positive and that would make it 18 + 12=30 and you divided it by -3x which should have x equal to -10
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3 years ago
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Express the function f(x) =3x^2-6x-18 in the form a(x + h)^2=k, where a, h and k are constants.Hence state the :
ololo11 [35]

Answer:

The minimum value of f(x) is -21 and it occurs at x = 1

Step-by-step explanation:

f(x) =3x^2-6x-18

Factor out the greatest common factor out of the first two terms

f(x) =3(x^2-2x)-18

Complete the square

-2x/2 =-1  (-1)^2 = 1

Add 1  (But remember the 3 out front so we are really adding 3  so we need to subtract 3 to remain balanced)

f(x) = 3(x^2 -2x+1) -3 -18

f(x) = 3(x-1)^2 -21

This is vertex form

f(x) = a(x-h)^2 +k  where (h,k) is the vertex and a is a constant

The vertex is (1,-21)  

Since a > 0 this opens upward and the vertex is a minimum

The minimum value of f(x) is -21 and it occurs at x = 1

6 0
3 years ago
X+4y=4 y in terms of x
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Answer:

x + 4y = 4

4y = 4 - x

multiply both sides by 1/4

y = 1/4( 4- x)

y = 1- 1/4x

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