2 years ago

What would have to be done to put 3x (2x - 7) =9 in standard form? Group of answer choices

Mathematics

1 answer:

Artemon [7]2 years ago

3 0

Answer:

Step-by-step explanation:

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The diagonals of a kite are in the ratio 3 : 2. The area of the kite is 27cm(squared). find the length of both diagonals.

alina1380 [7]

$P= 27 \ cm^2 \\ \\P=\frac{1}{2} e * f \\ \\ f =3x , \ e = 2x \\ \\27=\frac{1}{2}*2*3x \\ \\27=3x/:3$

$x=3 \\ \\ f =3x =3 *3= 9 \ cm \\ \\ \ e = 2x = 2*3 = 6cm$

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3 years ago

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raketka [301]

Answer:

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Amanda [17]

I would go with Either E or A

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3 years ago

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John is twice as old as Mary. The sum of their ages is 21. How old is Mary?

Mazyrski [523]

Answer:

Mary is 7

Step-by-step explanation:

If their ages combined equals 21 and john is twice Mary’s age then johns age takes up 2/3 of 21. that would b 14. 14 is 2 x 7. and Mary is 7. 14+7=21. Mary is 7 years old

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3 years ago

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Six more than four times a number is -26

bearhunter [10]

4x + 6 = -26

I'm not sure if your supposed to solve, but I will anyways :)

4x + 6 = -26
-6 -6
4x = -32
x = -8

Hope this helps!

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3 years ago