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3 years ago

-3x-9+15x combine like terms

Mathematics

1 answer:

algol133 years ago

3 0

Answer:

=12x−9

Step-by-step explanation:

−3x+ −9 +15x

=(−3x+15x) +(−9)

=12x+−9

I hope this helps ^^

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Step-by-step explanation:

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madam [21]

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3 years ago

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The midpoint of AB is M(7. – 7). If the coordinates of A are (8,-6), what are the

IRISSAK [1]

Answer: B = (6,-8)

Step-by-step explanation:

first the midpoint formula is $(\frac{x1+x2}{2},\frac{y1+y2}{2})$

then you take the x co-ordinate of A and substitute it into one of the x values in the first part of the formula:

$\frac{8+x}{2}=7$

then solve it like an equation:

$8+ x=14\\x=6$

then you take the y co-ordinate of A and substitute it into one of the y values in the second part of the midpoint formula:

$\frac{-6+y}{2} =-7$

then solve it like an equation:

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3 years ago

Converting a fraction to decimal

r-ruslan [8.4K]

Answer:

All of them? Pls reply if so!

Step-by-step explanation:

To convert a fraction to a decimal just the divide the bottom into the top.

To convert a decimal into a fraction just put the decimal over 1 or divide the decimal by preference of tenths, hundredths, or thousandth place.

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4 years ago