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Leviafan [203]
3 years ago
13

Write the following linear function as an equation the sum of x and 4y is 9

Mathematics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer:

y= -1/4x +9/4

Step-by-step explanation:

I did'nt know which form you needed so I just did Slope-Intercept

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Please help asap 25 pts
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Sabendo que "K" satisfaz a equação {2(k-8) + 3(-k+1) = -4k +11} Os valores reais de x que satisfazem a equação 15x² - kx + 1 = 0
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Answer:

D) 1/5 e 1/3

Step-by-step explanation:

You have the following quadratic equation:

15x^2-kx+1=0           (1)

In order to find the values of x that are solution to the equation (1), you first find the solution for k in the following equation:

2(k-8)+3(-k+1)=-4k+11\\\\2k-16-3k+3=-4k+11\\\\2k-3k+4k=11+16-3\\\\3k=24\\\\k=8

Next, you replace the previous value of k in the equation (1) and you use the quadratic formula to find the roots:

15x^2-8x+1=0\\\\x_{1,2}=\frac{-(-8)\pm \sqrt{(-8)^2-4(15)(1)}}{2(15)}\\\\x_{1,2}=\frac{8\pm 2}{30}\\\\x_1=\frac{1}{5}\\\\x_2=\frac{1}{3}

Then, the roots of the equation (1) are

D) 1/5 e 1/3

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A local elementary school is selling tickets to a play. Ticket's cost $2 for kids and $3 for adults. The first day of sales, the
ioda
2x +3y =70
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3 years ago
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