2 years ago

3xy - 4 - 2y + 7y + 3

Mathematics

2 answers:

Eddi Din [679]2 years ago

6 0

Answer: 3xy+5y−1

<u>Combine like terms</u>

3xy+−4+−2y+7y+3

(3xy)+(−2y+7y)+(−4+3)

3xy+5y+−1

nadya68 [22]2 years ago

4 0

I believe it’s 3xy-1+5y

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3 years ago

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It's between the first and second but I think it's the second one .

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2 years ago

Help please, i don't understand it!!!!

velikii [3]

$V=\dfrac{4}{3}\pi r^3\ \ \ |\cdot\dfrac{3}{4}\\\\\pi r^3=\dfrac{3V}{4}\ \ \ \ |:\pi\\\\r^3=\dfrac{3V}{4\pi}\ \ \ |:r\\\\r^2=\dfrac{3V}{4\pi r^2}$

Substitute to S.A.

$S.A.=4\pi r^2=4\pi\cdot\dfrac{3V}{4\pi r^2}=\dfrac{3V}{r}$

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3 years ago

I need to find the value of k

VladimirAG [237]

Hey there! :D

-2(k-2)≥-20

Distribute the -2. Multiply -2 by k and -2.

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Subtract 4 on both sides.

-2k≥-24

Divide by -2 and flip the sign, since you are dividing by a negative.

k≤12

I hope this helps!
~kaikers

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3 years ago

Read 2 more answers

3xy - 4 - 2y + 7y + 3​

3xy - 4 - 2y + 7y + 3