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3 years ago

What is the answer to 7x+5y=-66

Mathematics

2 answers:

OverLord2011 [107]3 years ago

6 0

Since this does not have two equations, many answers are acceptable.

One of these is x = -8, y = -2.

sergejj [24]3 years ago

4 0

Answer:

The answer will be x = - 66/7 - 5y/7

Step-by-step explanation:

I'm not sure what the context of the problem is, however just shoot me another question if this seems incorrect.

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Which of the following functions gives the length of the base edge, a(v), of a right square pyramid that is 8 inches tall as a f

Reil [10]

Answer:

$\large\boxed{a(V)=\sqrt{\dfrac{3V}{8}}}$

Step-by-step explanation:

The formula of a volume of a square pyramid:

$V=\dfrac{1}{3}a^2h$

a - base edge

h - height of a pyramid

We have H = 8in.

Substitute and solve for a:

$\dfrac{1}{3}a^2(8)=V\\\\\dfrac{8}{3}a^2=V\qquad\text{multiply both sides by}\ \dfrac{3}{8}\\\\\dfrac{3\!\!\!\!\diagup^1}{8\!\!\!\!\diagup_1}\cdot\dfrac{8\!\!\!\!\diagup^1}{3\!\!\!\!\diagup_1}a^2=\dfrac{3}{8}V\\\\a^2=\dfrac{3V}{8}\Rightarrow a=\sqrt{\dfrac{3V}{8}}$

3 0

3 years ago

IM SO CONFUSED!! Plz Help, I will mark brainliest to whoever completes the table correctly!!

ira [324]

Answer:

f(2) = 15.5

f(3) = 18

f(4) = 20.5

f(5) = 23

f(6) = 25.5

g(2) = 64

g(3) = 96

g(4) = 128

g(5) = 160

g(6) = 192

Step-by-step explanation:

plug it all in to the equations

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Y2 – 8y + 16 = 64<br><br> how would i factor this equation?

Talja [164]

Answer: y= 4 or y= -12

Step-by-step explanation:

Y²-8y+16=64.

Rearrange

Y²-8y+16-64=0

Y²-8y-48=0

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Y-4=0 or y+12=0

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3 years ago

What is the answer to 7x+5y=-66​

What is the answer to 7x+5y=-66