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Crazy boy [7]
3 years ago
11

Simplify the following expression. -4(2x +6) +x2 -9

Mathematics
2 answers:
kompoz [17]3 years ago
7 0

Step-by-step explanation:

<u>Use the Distributive Property:</u>

<u />-8x-24+x^2-9

<u>Combine Like-Terms and correctly format:</u>

<u />x^2-8x-33

nevsk [136]3 years ago
6 0

Answer:

x² - 8x - 15

Step-by-step explanation:

-4(2x + 6) + x² - 9

= -8x - 24 + x² - 9

= x² - 8x - 33

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4 0
4 years ago
9. April's test scores in physics are 78, 85,65, 82, 90, and 95. Find the mean
Mariulka [41]

Answer:

82.5

Step-by-step explanation:

the mean and standard deviation of the data is 82.5

4 0
3 years ago
Read 2 more answers
Write whether each statement is true of false. Explain your reasoning.
sp2606 [1]
6 - p....p = 1.5
6 - 1.5 = 4.5
TRUE...because when u sub in 1.5 for p, the difference is 4.5, which is less then 5.

(30)(420) = 12000 - 600
12600 = 11400...incorrect
FALSE...because the product of 30 and 420 does not equal 600 less then 12000

16.3 + 11.9 < 27
28.2 < 27..incorrect
FALSE...because the sum of 16.3 and 11.9 is greater then 27
5 0
3 years ago
Tina has 20/40 vision in her right eye, and 20/20 vision in her left eye. what does each of these measurements mean?
zloy xaker [14]
The findings 20/40 vision in the right eye implies that when Tina is standing at a distance of 20 feet away from the eye chart, she will be able to read with her right eye what a person with normal vision can read from a distance of 40 feet away from the eye chart. Also, Tina has got 20/20 vision in the left eye, this implies that when Tina stands 20 feet from the eye chart , she will be able to read with her left eye what a person with normal vision can read from 20 feet away with the left eye. In conclusion this implies that Tina has normal vision in her left eye but a decreased vision in her right eye.
6 0
3 years ago
Simplify. <br><br> 3√27x15y24
emmainna [20.7K]
That's what I got ---->29.698485x^15y^24
6 0
3 years ago
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