PLEASE HELP. I'LL GIVE BRAINLIEST.

Mathematics

1 answer:

vova2212 [387]2 years ago

6 0

<h2>Answer:</h2>

The answer is 16.

<h2>Step-by-step explanation:</h2>

Since the 8x is positive, the equation must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

Example:

$\frac{8x}{2} \\\\4^2=16\\$

The last number must be 16. Let's check it.

$(x+4)^2=x^2+8x+16$

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Jessica just bought a refrigerator for $799. She paid $79.80 in a down payment and will pay the rest in 4 equal installments. Ho

grigory [225]

Answer:

$179.80

Step-by-step explanation:

799-79.80=719. That's the down payment subtracted from the total price of the refrigerator. 719/4, since there's four equal installments, gives you 179.8. Since cents go in 10s, you make it 179.80 and slap a dollar sign in front of that.

7 0

3 years ago

I NEED HELP, IF LINK = REPORT FOR MODERATORS TO MODERATE (I think they should start something that doesn’t let us post links)

Brilliant_brown [7]

Answer:

1. 3,168 in³

2. $\frac{3}{4}$

Step-by-step explanation:

1. The total volume of the tank - as calculated by the formula for a rectangular prism - $V=LWH$ , where L is length, W is width, and H is height. 15 · 24 · 11 = 3,960 in³. Next, we divide 3,960 by five to get 792. If 792 in³ is the air at the top, we can then subtract that from 3,960 and get 3,168. So there are 3,168 in³ of water in the tank.

2. If we dump 3,168 in³ of water into a 12,672 in³ tank, then $\frac{3,168}{12,672}$ of the tank will be full. Simplified, that is $\frac{1}{4}$ . So that means $\frac{3}{4}$ of the tank will be empty.