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Romashka [77]
2 years ago
11

Which expressions are equivalent to 2(2x + 4y + x − 2y)?

Mathematics
1 answer:
Greeley [361]2 years ago
5 0
C should be your answer:))))
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8 0
2 years ago
Please help me !!!!!!!!!!!!!!!!
Nutka1998 [239]

Answer: x=-10, y=13

Step-by-step explanation:

-3x+2y=56\\-5x-2y=24

+2y-2y = 0, eliminating y is much easier. So -3x-5x = -8x and 56+24 = 80

-8x=80\\x=-10

Substitute x in any equations but only 1 equation (Don't substitute in both equations.)

For me, I'd substitute x in -3x+2y=50

-3(-10)+2y=56\\30+2y=56\\2y=56-30\\2y=26\\y=13

So the answer is x = -10, y = 13

5 0
3 years ago
Solve for x. 5x^2 – 45 = 0
mamaluj [8]

5x^2-45=0

<em>*Add 45 to both sides*</em>

5x^2=45

<em>*Divide both sides by 5*</em>

x^2=9

<em>*Take the square root of both sides*</em>

x=+/-9

Hope this helps!!

3 0
3 years ago
Read 2 more answers
Write a whole number and a fraction greater than 1 to name the part filled. think 1 container = 1?
zvonat [6]
<span>A whole number greater than 1 could be 2,3,4,5... And so on. A fraction greater than 1 is any fraction where the top number (numerator) is greater than the bottom number (denominator) for example 7/5</span>
8 0
3 years ago
Cos w, if tan w=-10/9 and sin w&gt; 0
Veseljchak [2.6K]

Answer:

tan(x)=512 can be thought of as the ratio of opposite to adjacent sides in a triangle with sides 5,12 and 13 (where 13 is derived

Step-by-step explanation:

5 0
2 years ago
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