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worty [1.4K]
3 years ago
15

The expression. 3(5^2 +2x+4)-4(4x^2 +2x+3) equals?

Mathematics
1 answer:
crimeas [40]3 years ago
8 0

Answer:

- x^2 - 2x

Step-by-step explanation:

3 ( 5x^2 + 4 + 2x) - 16x^2 -8x -12

15 x^2 + 12 + 6x - 16x^2 - 8x - 12

-x^2 - 2x

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X = 7
Is a vertical line that passes through (7,-3).
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Are all checking accounts the same at all banks? Explain.
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Write the slope of the line (–12, -6) and (8, 9).<br> m=4/3<br> m=-3/4<br> m=-4/3<br> m=3/4
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3 0
4 years ago
Professor Nwamabi is conducting an experiment in which he is examining the effects of air conditioning on sleep habits. 100 part
miskamm [114]

In the research of Professor Nwamabi  the use of air conditioning represents independent variable.

Given 100 participants are randomly selected in a research in which effects of air conditioning on sleep habits is studied.

Dependent variable is the variable whose value is dependent on the other variables like increase in profit and production.

Independent variable is the variable whose value is not dependent on the other variables.

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Hence the use of air conditioning represents the independent variable.

Learn more about independent and dependent variables at brainly.com/question/25223322

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3 0
2 years ago
Find the median of the data set: 3, 7, 3, 2, 7, 9.<br><br> A: 7 <br> B: 5<br> C: 5.3<br> D: 3
harina [27]

To find the median, you order the numbers from least to greatest, then find the middle number.

3,7,3,2,7,9

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There are two middle numbers, so we have to find the middle of the two.

3,4,5,6,7

5 is the median, so the answer is B.

---

hope it helps

5 0
3 years ago
Read 2 more answers
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