Please help its due today

aleksandr82 [10.1K]

Although the terms might seem intimidating, this is a simple substitution problem.

X + Y = _______
Substitute the values of X and Y in terms of w
(7w^2 + 4w - 6) + (w^2 - 11w + 13) = ______
Now all you need to do is combine like terms (terms that have the same variables raised to the same power)
8w^2 - 7w + 7

Final Answer: 8w^2 - 7w + 7

3 0

3 years ago

What is the answer to “x” in <br> y = 84x + 625

solong [7]

could u give me more detail?

(like y’s number)

4 0

3 years ago

Read 2 more answers

PLEASEPLEASE HELPPPP!!! This is quadratics, and I need help and please show the steps. I’m not sure how to approach this, but I

Len [333]

Start with the bottom equation and rearrange it so that it's a "y =" equation like so:
0 = 2x + 1 - y ->
y = 2x + 1

now since you know "y" you may substitute that equation 2x + 1 into "y" of the first given equation to be:
x^2 = (2x + 1) - 7 + 5x
then simplify
x^2 = 7x - 6 (I just put together like terms here to simplify the equation)

then you can make it to be: x^2 - 7x + 6 = 0
and there's your new and nice equation. now just solve for "x" using the quadratic formula or any other formula that you know

hope this helps

6 0

3 years ago

Determine the sample space of all of the possible outcomes of choosing a card numbered 1, 2, 3, or 4 and a blue, green, or yello

Alex17521 [72]

Answer:

Answer 2

Step-by-step explanation:

8 0

3 years ago

68 1/4% as a decimal

eduard

Answer: The correct answer is: " 0.6825 ".

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Step-by-step explanation:

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We are asked to convert: " 68 $\frac{1}{4}$ % " ; to a "decimal" .

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1) Rewrite: " 68 $\frac{1}{4}$ " ; as a "decimal value" :

" 68 $\frac{1}{4}$ " = 68 + $\frac{1}{4}$ ;

→ " $\frac{1}{4}$ " = 1 / 4 = 1 ÷ 4 = 0.25 . (use calculator).

Or: → " $\frac{1}{4}$ " = " $\frac{?}{100}$ " ;

→ Find the "?" value:

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Let us consider the "denominators" ;

→ 4 * (what value) = 100 :

→ 100/ 4 = 100 ÷ 4 = 25 .

So: 4 * 25 = 100;

So, to find the "?" value in the numerator:

→ 1 * 25 = ("?") ;

→ 1 * 25 = 25 ;

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So, we have:

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→ " $\frac{1}{4}$ " = " $\frac{?}{100}$ " ;

Rewrite; and replace the "?" value with our know value: " 25 " :

→ " $\frac{1}{4}$ " = " $\frac{25}{100}$ " ;

Note that: " $\frac{25}{100}$ " ;

= 25/100 = 25 ÷ 100 = 0.25 . {Use calculator.}.,

Or: 25 ÷ 100 = ? ;

→ When dividing by "100" ; we take the number; and move the decimal point back 2 (two) spaces; since "100" has 2 (two) zeros.

→ 25 ÷ 100 = 25. ÷ 100 = .25;

→ write as: " 0.25" .

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So: " 68 $\frac{1}{4}$ " = 68 + 0.25 = 68.25 .

As such: " 68 $\frac{1}{4}$ % " = 68.25 % ;

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Now, we write: " 68.25 % " as a decimal ;

<u>Note</u>: " % " ; or "percent" ; means "per hundred" ; or "parts per hundred" ;

or; "divide by 100" ;

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So; to write: " 68.25 % " as a decimal ;

→ " 68.25 ÷ 100 " = 0.6825 . {← Use calculator.}.

Or: → 68.2 ÷ 100 = ? ;

→ When dividing by "100" ; we take the number; and move the decimal point back 2 (two) spaces; since "100" has 2 (two) zeros.

→ " 68.25 ÷ 100 " ÷ 100 = .6825 ;

→ write as: " 0.6825 " .

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The answer is: " 0.6825 " .

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Hope this answer is helpful to you!

Wishing you the best in your academic pursuits

— and within the "Brainly" community!

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6 0

3 years ago