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Sophie [7]
3 years ago
11

Factorising what is 9+12y+123r

Mathematics
2 answers:
marshall27 [118]3 years ago
8 0

Answer:

3(3+4y+41r)

Step-by-step explanation:

Im pretty sure, usually this stuff is hard for me but this one wasnt.

guajiro [1.7K]3 years ago
4 0

Answer:

Step-by-step explanation:

3(3+4y+41r)

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3-10-(-15)<br> Show and explain work
Genrish500 [490]

Answer:

3-10-(15) equals 8.

Step-by-step explanation:

3-10 equals -7. Then -(-15) becomes a positive because two negatives make a positives producing +15 so it becomes -7+15 which finally becomes 8.

3 0
4 years ago
A contractor purchases 7 dozen pairs of padded work gloves for $103.32. He incorrectly calculates the unit price at $14.76 per p
Aneli [31]
They didn’t multiply 7 by 12, making it seven dozen
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3 years ago
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Is this answer right?? If not please help.
pickupchik [31]
I think your are right
8 0
3 years ago
The sales decay for a product is given by S = 70000e^ -0.8x where S is the monthly sales and x is the number of months that have
Gre4nikov [31]

Answer:

After 5.31 months sales will drop below 1000 and 5 months after the end of the campaign sales will be 1282.09

Step-by-step explanation:

Let's find the solutions for the two questions.

First question: How many months after the end of the campaign will sales drop below 1000.

Because the problem asks for how many months, and since 'x' represents month variable, then the problem is asking for 'x'.

Using the same equation for sales we can observe the following:

S=70000*e^{-0.8X}, but we have S which is 1000, so:

1000=70000*e^{-0.8X} which is equal to:

1000/70000=e^{-0.8X} which is equal to:

1/70=e^{-0.8X} by applying ln(x) properties:

ln(1/70)=ln(e^{-0.8X}) which is equal to:

ln(1/70)=-0.8X which is equal to:

ln(1/70)/(-0.8)=X so:

X=5.31 months

Second question: what will be the sales 5 months after the end of the campaign.

Because the problem asks for what will be the sales, and since 'S' represents the sales, then the problem is asking for 'S'.

Using the same equation for sales we can observe the following:

S=70000*e^{-0.8X}, but we have x which is 5 months, so:

S=70000*e^{-0.8*5} which is equal to

S=1282.09

In conclusion, after 5.31 months sales will drop below 1000 and 5 months after the end of the campaign sales will be 1282.09.

8 0
3 years ago
Yes or no ?? i need helppp
tekilochka [14]

Answer:

it is linear and it does have a constant rate of change

Step-by-step explanation:

4 0
3 years ago
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