3 years ago

5. Jose figures the prom will cost

Mathematics

2 answers:

mars1129 [50]3 years ago

7 0

Answer:

Step-by-step explanation:

19 hours

Sergeu [11.5K]3 years ago

7 0

Answer:

25.6 hours

Explanation:

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The differential equation in Example 3 of Section 2.1 is a well-known population model. Suppose the DE is changed to dP dt = P(a

LuckyWell [14K]

Answer:

Decreases

Step-by-step explanation:

We need to determine the integral of the DE;

$dP/dt=P(aP-b)$

$dP=P(aP-b)dt$

$1/(dP^2-bP)dP=dt$

We can solve this by integration by parts on the left side. We expand the fraction 1/P²:

$1/(d-b/P)\cdot{P^2} dP$

let

$u=d-b/P$

$du/dP=b/P^2$

$dP=$ $\int\limits {P^2/b} \, du$

$P=lnu/b$

Substitute u in:

$P=ln(d-b/P)/b$

Therefore the equation is:

$ln(d-b/P)/b=t$

We simplify:

$d-b/P=e^b^t$

$P=b/(d-e^b^t)$

As t increases to infinity P will decrease

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3 years ago

What expression would give the number of ways to choose a group of 7 from a group of 15?

ipn [44]

C(15, 7)
(15 * 14 * 13 * 12 * 11 * 10 * 9)/(7 * 6 * 5 * 4 * 3 * 2 * 1) = 6435 groups

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3 years ago

How do I graph 6x + 3y = 12

swat32

Answer:

(x , 4-2x)

Graph image is attached.

Step-by-step explanation:

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3 years ago

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What is the value of P ? 45/20= 40.5/P?

photoshop1234 [79]

Answer:

P=18

Step-by-step explanation:

45/20= 40.5/P

45p=810

p=18

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2 years ago

The surface area of a right square pyramid is 50 square inches. If the sides of the base and the slant height of the pyramid are

suter [353]

The surface area is 200 square inches.

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3 years ago