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sdas [7]
3 years ago
13

What is the product? -9x(5-2x) 

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

The product would be -27x.

Step-by-step explanation:

First you use the distributive property to distribute the -9x to the 5 and the -2x. Then you would get -45x+18x. 18x because when you multiply a negative and a negative you get a positive. Then, you add those two and you should get -27x.

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Help me pleas I don’t understand
Svetlanka [38]

Answer:

$1.59 per gallon is the answer

Step-by-step explanation: You simply need to divide 12.72 by 8. that will give you 1.59. So the answer is the bottom right answer, which can be read as $1.59 per gallon.

Hope all of that makes sense! :)

7 0
3 years ago
What is a simple way to tell that -31 is not the slope of this graph?
Trava [24]

The change in x from A to B is positive. The line is going up, so the slope cannot be negative

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7 0
2 years ago
44% of the 25 buildings in the Forum are preserved. How many buildings are preserved?
Artemon [7]

Answer:

=44%of25

=44/100*25

=44/4

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8 0
2 years ago
Charlie invests £1200 at 3.5% per annum compound interest.
lbvjy [14]

Answer:

<h2>£1,330.46</h2>

Step-by-step explanation:

Using the compound interest formula A = P(1+\frac{r}{n} )^{nt}

A = amount compounded after n years

P = principal (amount invested)

r = rate (in %)

t = time (in years)

n = time used to compound the money

Given P =  £1200., r = 3.5%, t = 3years, n = 1 year(compounded annually)

A = 1200(1+0.035)^{3}\\ A = 1200(1.035)^{3}\\ A = 1200* 1.108717875\\A = 1,330.46

Value of Charlie's investment after 3 years is £1,330.46

6 0
3 years ago
Mr Diaz decreased the speed of his car by 30 miles per hour over a period of 10 seconds. What is the average change in the speed
Allisa [31]
Divide 30 by 10. 30mph/10seconds = 3mph/seconds
4 0
3 years ago
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