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3 years ago

Simplify 2y^2-7y-15/3y^2-8y-2 9y^2-1/4y^2-9 / y^2+3y-10/2y^2-9y+9

1 answer:

7 0

2y2−7y−‌153‌y2−8y−29y2−‌14‌y2−‌9y2‌+3y−‌102‌y2−9y+9=‌‌−1494‌y4−21y3+9y2−9y2‌=‌−149y4−84y3+36y2−364yy‌=‌−149y4−84y3+36y2−364y2

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Share $35 between Jack and Jill in the ratio 4 : 3 *

jek_recluse [69]

Answer:

20:15

Step-by-step explanation:

baiscally add 4:3

4+3=7

then take the total of 35 and divide it by 7 you'd get 5.

4x+3x=35

7x=35

1x=5

4x=5×4=20

3x=5×3=15

4:3 therefore would be 20:15

4 0

3 years ago

The political opinion organization hired 100 new employees, which increases its staff by 40%. What was the original number of em

natulia [17]

Answer:

40(?)

I don't remember exactly if that's correct, but I hope it's right! Comment if you want the explanation

7 0

3 years ago

Read 2 more answers

In a memory experiment, Alice is able to memorize words at a rate given by m '(t)= - 0.009t^2 + 0.6t. In the same memory exper

White raven [17]

Answer:

1) Ben, 2) $\Delta = 2$ , 3) $\dot m = 2.7$ , 4) $\dot M = 2.9$

Step-by-step explanation:

1) Ben has a higher rate of memorization, since the coefficient of the second power is lesser than the one from Alice.

2) The number of words can be estimated by integrating the function:

Alice

$\Delta m = -0.003\cdot (10\,min)^{3} + 0.3\cdot (10\,min)^{2}$

$\Delta m = 27$

Ben

$\Delta M = -0.001\cdot (10\,min)^{3} + 0.3\cdot (10\,min)^{2}$

$\Delta M = 29$

$\Delta = \Delta M - \Delta m$

$\Delta = 2$

3) The average amount of words per minute is:

$\dot m = \frac{27}{10}$

$\dot m = 2.7$

4) The average amount of words per minute is:

$\dot M = \frac{29}{10}$

$\dot M = 2.9$

4 0

3 years ago

What is 7d squared plus 10

Savatey [412]

Let's simplify step-by-step.7d2+10There are no like terms.Answer:=7d2+10

7 0

4 years ago

What is 3.82 rounded to one decimal place

Ahat [919]

Im guessing that it's 4 because it said round it to the ones place and 3 is in the ones place and 8 is grater that five so 4 should be you answer

7 0

3 years ago

Read 2 more answers