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Darina [25.2K]
3 years ago
10

Substract the polynomials and simplify (-3r2-2r-4)-(9r2+7r+2)

Mathematics
1 answer:
mina [271]3 years ago
6 0

Answer:

-12r2-9r-6

Step-by-step explanation:

-distribute the subtraction symbol  to the second group of numbers

-(9r2+7r+2) = (-9r2-7r-2)

-then combine each term together (-3r2-2r-4)+(-9r2-7r-2)

= -12r2-9r-6

HOPE THIS HELPS!!

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FromTheMoon [43]

Answer:

farmers market sold 4/9 plums in bushel

Step-by-step explanation:

We know that at the beginning of the day we have 7/9 of a bushel of plums and that after a while there are 1/3 of a bushel of plums, so to calculate how many were sold we have to subtract the bushel of plums that were left from the initial ones

7/9 - 1/3

if we want to do this subtraction we have to find a fraction equivalent to 1/3 that can be subtracted from 7/9

1/3 = (1 * 3) / (3 * 3) = 3/9

now we are just the top and leave the denominator the same as before

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3 years ago
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Answer:

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2 years ago
Someone please help me!!!
djyliett [7]

Answer:

A 34

Step-by-step explanation:

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VXY = 1/2( VZ - WY)

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Step-by-step explanation:

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2 years ago
The mean of a set of data is -3.82 and its standard deviation is 2.31. Find the z score for a value of 3.99.
gtnhenbr [62]

Answer:

The z- score for a value of 3.99 will be 3.38.

Step-by-step explanation:

It is given that the mean of a set of data is -3.82 and its standard deviation is 2.31.

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3 years ago
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