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Alekssandra [29.7K]
3 years ago
11

The number of students at a school who ate in the cafeteria yesterday can be represented by the expression 4/5k where K is the n

umber of students in the school which expression is equivalent to 4/5k and so special selection of students who did not eat in the cafeteria yesterday
Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0
What are the Expression Choices ?
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(p^2-7pq-q^2)+(-3p^2-2pq+7q^2)<br><br>​
Alex Ar [27]

Answer:

-2p² - 9pq + 6q²

Step-by-step explanation:

Add the like terms

p² + - 3p² = -2p²

-7pq + - 2pq = -9pq

-q² + 7q² = 6q²

6 0
2 years ago
Can somebody explain this to me when 2du = 16xdx ???
tamaranim1 [39]
When you set u=4x^2+4, you end up with the differentials \mathrm du=8x\,\mathrm dx. Multiplying both sides by 2 gives 2\,\mathrm du=16x\,\mathrm dx.

Then the integral is

\displaystyle\int_0^1\frac{16x}{(4x^2+4)^2}\,\mathrm dx=\int_4^8\frac2{u^2}\,\mathrm du=-\frac2u\bigg|_{u=4}^{u=8}=-2\left(\frac18-\frac14\right)=\frac14
8 0
3 years ago
Graph this function using intercepts: <br><br>4x - 5y = 40 ​
DochEvi [55]

use photomath for that that's way easier

4 0
2 years ago
Read 2 more answers
What is 1/20 written as a decimal?
Black_prince [1.1K]

Answer:

0.05

Step-by-step explanation:

divide 100 by 20

6 0
2 years ago
Which fraction us less than a half?5/6 3/4 or 2/5
Olin [163]

Answer:

That's easy 2/5

Step-by-step explanation:

Half of 5 is 2.5 and well ovbi 2 is less than 2.5 therefore 2/5 is lees than a half

Hope this helps!

8 0
2 years ago
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