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goblinko [34]
3 years ago
6

I need help for 12xy-15x+6xy

Mathematics
2 answers:
choli [55]3 years ago
8 0
The answer is 18xy-15x
 
kkurt [141]3 years ago
8 0
18xy-15x is the answer I think

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1. Refer to the equation 2x − 6y = 12. (a) Create a table of values for at least 4 points. Show your work.
Sergio039 [100]
2x - 6y = 12

so we pick any number for x and then solve for y

lets say x = 0
2(0) - 6y = 12
-6y = 12
y = -12/6
y = -2....so when x = 0, y = -2....(0,-2) <== one point

lets say x = 1
2(1) - 6x = 12
2 - 6x = 12
-6x = 12 - 2
-6x = 10
x = -10/6
x = - 5/3...so when x = 1, y = -5/3....(1,-5/3) <== another point

Lets say x = 2
2(2) - 6y = 12
4 - 6y = 12
-6y = 12 - 4
-6y = 8
y = -8/6
y = - 4/3....so when x = 2, y = -4/3.....(2,-4/3) <== another point

lets say x = 3
2(3) - 6y = 12
6 - 6y = 12
-6y = 12 - 6
-6y = 6
y = -6/6
y = -1....so when x = 3, y = -1.....(3,-1) <== another point

now there is 4 points.
4 0
3 years ago
What is 201.3 divided by 3?
lidiya [134]
The answer to “What is 201.3 divides by 3” is 67.1.
4 0
3 years ago
The SAT mathematics scores in the state of Florida for this year are approximately normally distributed with a mean of 500 and a
Greeley [361]
<u></u><u>The correct answer is 47.5%, or 0.475.</u>

Explanation:
The empirical rule states that in any normal distribution:

68% of data will fall within 1 standard deviation of the mean;
95% of data will fall within 2 standard deviations of the mean; and
99.7% of data will fall within 3 standard deviations of the mean.

The mean is 500 and the standard deviation is 100.  This means that 700 is 2 standard deviations away from the mean:

(700-500)/100=200/100=2.

We know that 95% of data will fall within 2 standard deviations from the mean.  However, included in the 95% is data less than the mean and greater than the mean.  Since we are only concerned with the scores from 500 to 700, we only want the half that is greater than the mean:

95/2 = 47.5%, or 0.475.
8 0
3 years ago
Read 2 more answers
Evaluate 3m to the second power n to the -2nd power for m= 2 and n= -3
Harlamova29_29 [7]

Answer:

1296

Step-by-step explanation:

3 × 2 = 6

6 to the power -2 = 0.277777777777777777

0.277777777777777777 to the power -2 = 1296

4 0
3 years ago
Read 2 more answers
Can i please get help on this Question?
Shalnov [3]
Hi there!

Given:
4m +  \frac{23 + n}{p - 3}  \\ m = 7 \\ n = 2 \\ p = 8

In order to evaluate the expression with the given values of m, n and p, we must substitute then into the expression. Then we use the correct order of operations (PEMDAS) to calculate.

Let's substitute first!
4(7)  +  \frac{(23 + 2)}{(8 - 3)}

Now find the numerator and denominator of the fraction.
4(7) +  \frac{25}{5}

Next up: multiplying
28 +  \frac{25}{5}

Divide the fraction.
28 + 5

And finally add the integers.
33

Hence, the answer is 33.
~ Hope this helps you!
3 0
3 years ago
Read 2 more answers
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