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3 years ago

Please help me! I need this to complete my math hw

Mathematics

1 answer:

babymother [125]3 years ago

4 0

Answer:

Step-by-step explanation:

You "complete the square" by adding the square of half the x-term coefficient. Here, that is ...

((-2)/2)² = 1 . . . . value added to complete the square

If you want to keep 0 on the right, you must also subtract this value:

x² -2x -36 = 0

x² -2x +1 -36 -1 = 0 . . . . . . add and subtract 1 on the left

(x -1)² -37 = 0 . . . . . . . . . . . written as a square

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Solve using method of your choice. PLease help 28 points

Burka [1]

$7x+y=-20\\
x-3y=-50\\\\
21x+3y=-60\\
\underline{x-3y=-50}\\
22x=-110\\
x=-5\\\\
-5-3y=-50\\
3y=45\\
y=15
$

-----------------------------------------------------

$(5x-8y)^2=-25$
No solution in real numbers.

5 0

3 years ago

Suppose Johnny invests $2,745 into an account, which has been earning interest for many years and he now has a total of $39,974.

Doss [256]

A negative number in this wouldn't be applicable.
Johnny started out with $2,745 in the beginning, EARNING (This being the key word) interest each year. Therefore, he comes out with $39,974, not being a negative number.

Hope I helped! ^-^

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3 years ago

Do you know parallelogram WXYZ Parkway 270° around point W what will be the length of the image WZ

Lerok [7]

Answer:

5 units

Step-by-step explanation:

Even if there is a transformation, it is asking for the length.

Therefore the length of WZ is 5 units

7 0

2 years ago

One sanctuary had 180 green sea turtles come ashore to lay eggs last year. This year, the number

r-ruslan [8.4K]

Answer:

216

Step-by-step explanation:

180 times .2 (20 percent in decimal form) = 36

36+180=216

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3 years ago

(6n-6)(n-1)<br><br> simplify by multiplying

lora16 [44]

6n2 - 6n - 6n + 6
= 6n2 - 12n + 6

3 0

3 years ago