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2 years ago

13

A movie theater is open x hours Monday through Thursday and y hours Friday through Sunday. Write and Algebraic expression that r

epresents the number of hours per week the theater is open.

1 answer:

balu736 [363]2 years ago

8 0

Answer:

4x + 3y

Step-by-step explanation:

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Can somebody help me on these two

Zarrin [17]

to find the slope for the first one, use the formula $\frac{y2-y1}{x2-x1}$

(It's the slope formula)

so... $3=y2, 3=y1, 2=x2, 10=x1$

then plug in... $\frac{3-3}{2-10} =\frac{0}{-8} = 0$

this line has a slope of 0

As for the miles problem, to find mph, the miles have to be at 1.

so... $4x=242\\x=60.5$

therefore, he drove 60.5 mph

6 0

2 years ago

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

6 0

2 years ago

Line A passes through the points (1, -1) and (-2, 8).

Viefleur [7K]

The answer to this question will be D

5 0

2 years ago

How do you solve linear equations using substitution

GuDViN [60]

You substitute the y from the second eqaution to the y in the first equation

4 0

2 years ago

Center at (3, 4); passes through (3, 10) and<br> (3, -2); b = 2

Amanda [17]

Answer:

m,nmm,,m

Step-by-step explanation:

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7 0

2 years ago