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xenn [34]
3 years ago
11

What is the answer to (-9,1)+8x-5y=82

Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

80x-50y=911

Step-by-step explanation:

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An x-method chart shows the product a c at the top of x and b at the bottom of x. Above the chart is the expression a x squared
Bond [772]

Answer:

The other factor is (x + 2).

Step-by-step explanation:

If x - 10 is a  factor of x^2 - 8x - 20 then we must find another factor that includes +2x, so that we have -10x + 2x = -8x.  That factor is (x + 2):

x^2 - 8x - 20 = (x - 10)(x + 2)

As a test, multiply -10 and +2.  We get -20, matching the constant of the given polynomial.  Also, -10x + 2x = -8x, another match.

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3 years ago
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A train leaves at 15.42 and arrives at its destination at 16.56.
Tasya [4]

Answer:

90/1.5=60 mph

Step-by-step explanation:

I assume that the train is traveling at constant speed.

Between 12:45 pm and 2:15 pm the train has traveled 180-90=90 miles. So 90 miles in 1.5 hours which means that its speed is 90/1.5=60 mph

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3 years ago
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Lady bird [3.3K]

Answer:

0.04 is as close as it gets

5 0
3 years ago
Number ten please thanks
BlackZzzverrR [31]
-3^2= -(3)^2

The exponent of 2 only applies to the number 3. -(3)^2 should equal -9. This is true because according to the order of operations, exponents should be evaluated before multiplication. The negative sign here represents -1* 3^2.
If you want to find -3 to the power of 2 it must be written (-3)^2.
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3 years ago
Prove that in general (x + a)<br> 2 ≠ x2 + a2
qwelly [4]

Answer:

yes they are not equal because (x + a) = 2x + 2a

6 0
3 years ago
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