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3 years ago

Qual dos seguintes polinómios é igual a (x - 3)2 - x2

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

7 0

Bsbsvsvsvsvsvsvvzvzvzvzvzvz

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Lin is a camp counselor. She is making small bags of trail mix for campers to take on a hike . She has 2 pounds of raisins and i

charle [14.2K]

Answer:

16 bags

Step-by-step explanation:

To find this, we divide 2 over 1/8, to see how many units of 1/8 fits into that of 2.

$\frac{2}{\frac{1}{8} }$ can be rewritten as 2*8. 2*8 = 16 bags.

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3 years ago

Read 2 more answers

renting paddle boats for Lakeshore paddle boats costs $10 per hour plus a one-time fee of $4 renting paddle boats from Lake padd

Anna11 [10]

Answer:

More than 2 hours

Step-by-step explanation:

Let number of hours be x

Lakeshore paddle cost:

10x + 4

Lake paddle cost:

Required inequality:

10x + 4 < 12x
12x - 10x > 4
2x > 4
x > 2

Lakeshore paddle costs less when time of rent is greater than 2 hours

3 0

3 years ago

Solve for x. 5(x – 10) = 30 – 15x x = 1 x = 4 x = 5 x = 8

jarptica [38.1K]

chan eil agad ach sgrùdadh a dhèanamh air google!

5x-50 = 30-15x, 20x = 80, x = 4,

x=4!

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3 years ago

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A large tank is filled to capacity with 300 gallons of pure water. brine containing 5 pounds of salt per gallon is pumped into t

Licemer1 [7]

If $A(t)$ is the amount of salt in the tank at time $t$ , then the rate at which this amount changes over time is given by the ODE

$A'(t)=\dfrac{3\text{ gal}}{1\text{ min}}\cdot\dfrac{5\text{ lb}}{1\text{ gal}}-\dfrac{3\text{ gal}}{1\text{ min}}\cdot\dfrac{A(t)\text{ lb}}{300+(3-3)t\text{ gal}}$

$A'(t)+\dfrac1{100}A(t)=15$

We're told that the tank initially starts with no salt in the water, so $A(0)=0$ .

Multiply both sides by an integrating factor, $e^{t/100}$ :

$e^{t/100}A'(t)+\dfrac1{100}e^{t/100}A(t)=15e^{t/100}$
$\left(e^{t/100}A(t)\right)'=15e^{t/100}$
$e^{t/100}A(t)=1500e^{t/100}+C$
$A(t)=1500+Ce^{-t/100}$

Since $A(0)=0$ , we have

$0=1500+C\implies C=-1500$

so that the amount of salt in the tank over time is given by

$A(t)=1500(1-e^{-t/100})$

After 10 minutes, the amount of salt in the tank is

$A(10)=1500(1-e^{-1/10})\approx142.74\text{ lb}$

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3 years ago

1+1+1+1+2-200 pls quick

Ksenya-84 [330]

You add up 1+1+1+1+2 and you get 6. You then subtract 6 by 200 and your answer is -194

5 0

3 years ago