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podryga [215]
3 years ago
6

BRAINLIEST

Mathematics
1 answer:
irina1246 [14]3 years ago
4 0

Answer:

Hours.

Step-by-step explanation:

Snacks is dependent because the number of snacks depends on the hours gone.

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Tracy recieves payments of $X at the end of each year for n years. The present value of her annuity is 493. Gary receives paymen
vladimir1956 [14]

Answer:

v = 1/(1+i)

PV(T) = x(v + v^2 + ... + v^n) = x(1 - v^n)/i = 493

PV(G) = 3x[v + v^2 + ... + v^(2n)] = 3x[1 - v^(2n)]/i = 2748

PV(G)/PV(T) = 2748/493

{3x[1 - v^(2n)]/i}/{x(1 - v^n)/i} = 2748/493

3[1-v^(2n)]/(1-v^n) = 2748/493

Since v^(2n) = (v^n)^2 then 1 - v^(2n) = (1 - v^n)(1 + v^n)

3(1 + v^n) = 2748/493

1 + v^n = 2748/1479

v^n = 1269/1479 ~ 0.858

Step-by-step explanation:

6 0
3 years ago
Suppose the number of births that occur in a hospital can be assumed to have a Poisson distribution with parameter = the average
arsen [322]

Answer:

0.5372

Step-by-step explanation:

Given that the number of births that occur in a hospital can be assumed to have a Poisson distribution with parameter = the average birth rate of 1.8 births per hour.

Let X be the no of births in the hospital per hour

X is Poisson

with mean = 1.8

the probability of observing at least two births in a given hour at the hospital

= P(X\geq 2)\\= 1-F(1)\\= 1-0.4628\\= 0.5372

the probability of observing at least two births in a given hour at the hospital = 0.5372

4 0
3 years ago
1. 48 cm<br>2. 30 cm<br>3. 24 cm<br>4. 54 cm<br>what's the answer​
rjkz [21]

Step-by-step explanation:

The answer is definitely 2.

which is 30 cm

6 0
3 years ago
You kayak up a river at a rate of 48 feet every 30 seconds. You kayak 423 feet every 3 minutes on the way back down the river. H
Mariulka [41]

Answer:

You kayak 255 feet farther 5 minutes on the way down the river than in 5 minutes on the way up the river

Step-by-step explanation:

Given:

The rate at which you kayak up a river =  48 feet every 30 seconds.

The rate at which you kayak down a river = 423 feet every 3 minutes

To Find:

How much farther do you kayak in 5 minutes on the way down the river than in 5 minutes on the way up the river = ?

Solution:

Let the speed with which you kayak up the river be x and the speed with which you kayak down the river be y

Then  

x =\frac{48}{0.5}     [ Converting 30 seconds to 0.5 minutes]

x =  96 feet per minute

Similarly

y =\frac{423}{3}

y = 141 feet per minute

Now the distance kayaked  up the river in 5 minutes

=>\text{speed of kayaking up the river} \times time

=>96 \times 10 ( in 5 minutes there are 10  30 minutes)

=>960 feet

Now the distance kayaked down the river in 5 minutes

=>\text{speed of kayaking down the river} \times time

=>141 \times 5 ( in 5 minutes there are 10  30 minutes)

=>705 feet

Thus

960-705 =  255 feet

7 0
3 years ago
Determine whether the given lengths can be sides of a right triangle.
12345 [234]

The lengths 14, 24 and 26 can be sides of a right triangle. The lengths 30, 72, and 78 can not be sides of a right triangle.

5 0
3 years ago
Read 2 more answers
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