2 years ago

16x2 + 81y2 + 32x + 648y + 16 = 0 write instandard form

Mathematics

1 answer:

satela [25.4K]2 years ago

7 0

I can’t answer it doesn’t have enough information

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Solve by using substitution<br>-7x-2y=-13 and x-2y=11

netineya [11]

$\left \{ {{-7x-2y=-13} \atop {x-2y=11}} \right. \\\\ \left \{ {{-7x-2y=-13} \atop {x=11+2y}} \right.\\\\
Substitute\ second\ equation\ into\ the\ first\ one:\\\\
-7(11+2y)-2y=-13\\
-77-14y-2y=-13\\
-77-16y=-13\ \ \ |Add\ 77\\
-16y= 64\ \ \ |Divide\ by\ -16\\
y=-4\\\\x=11+2y=11+2*(-4)=11-8=3\\\\ \left \{ {{y=-4} \atop {x=3}} \right.$

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4 years ago

Given the following graph what is the slope?

balandron [24]

Answer:

slope = $\frac{1}{4}$

Step-by-step explanation:

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (- 4, 1) and (x₂, y₂ ) = (0, 2) ← 2 points on the line

m = $\frac{2-1}{0-(-4)}$ = $\frac{1}{0+4}$ = $\frac{1}{4}$

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3 years ago

What is the solution to this system of linear equations?

LekaFEV [45]

Answer:

4th

Step-by-step explanation:

(-1,3)

here is the answer

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4 years ago

Зу + 5.2 = 2- 5y<br> What is the answer for this??

Aleksandr-060686 [28]

3y + 5.2 = 2 - 5y
8y = 7.2
Y = 0.9

5 0

3 years ago

Read 2 more answers

I need help with number 9, i need to know if the ratio forms a proportion.

laiz [17]

The data in the table are not proportionate because 4 pounds cost 3.55, meaning each pound costs 0.8875 while 6 pounds cost 4.33, which is 0.72166667 per pound.

6 0

3 years ago