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Ne4ueva [31]
4 years ago
15

question help brucebruce is taking a taxi to the airport. The taxi charges an initial fee of ​$44 and then ​$22 per mile. Write

an algebraic expression for the cost of a taxi ride of m miles. Then evaluate the expression to find how much aa 55​-mile taxi ride would cost brucebruce. Write an algebraic expression for the cost of a taxi ride of m miles. Choose the correct answer below. A. 44mminus−22m b. 22plus+44m c. 44plus+22m your answer is correct.D. 22m upper aa 55​-mile taxi ride would cost brucebruce ​$ nothing.
Mathematics
1 answer:
Sliva [168]4 years ago
5 0

Answer:

y = 44+22m

Step-by-step explanation:

Given that a taxi has a minimum charge of 44 dollar upto 1 mile and adds 22 for every additional 1 mile.

If a person travels 1 miles his charges are 44 dollar

If he travels >1 miles charges are 4 dollar +22(extra miles )

Let y be the charges and m be the no of miles.

Then the equation for y in terms of m would be

y =44+22m

is the correct answer.


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What's the LCM of 2,63,and 14
Troyanec [42]
2=2
63= 3* 3* 7
14= 2*7
LCM (2,63,14)= 2*3*3*7= 126

The least common multiple (LCM) of 2, 63, and 14 is 126~
3 0
3 years ago
Find the probability of exactly 3 successes in 6 trials of a binomial experiment in which the probability of success if 50%. rou
stiv31 [10]

Answer:

<u> The probability of exactly 3 successes in 6 trials of a binomial experiment in which the probability of success if 50%, is:</u>

<u>31.3% (Rounding to the nearest tenth)</u>

Step-by-step explanation:

With the information provided, P = 0.5, n = 6 and k = 3, we can build the binomial distribution table, this way:

Binomial distribution (n=6, p=0.5)

 f(x) F(x)

x Pr[X = x] Pr[X ≤ x]

0 0.0156 0.0156

1 0.0938 0.1094  

2 0.2344 0.3438

3 0.3125 0.6563  

4 0.2344 0.8906  

5 0.0938 0.9844  

6 0.0156 1.0000

Under the first column we have the probabilities of success of every value from 0 to 6, and under the second column we have the values for answering the question at least how much probability we have of any number of successes. Our question is exactly 3 successes in 6 trials and we see that value under the first column: 0.3125.

Therefore, the probability of exactly 3 successes in 6 trials of a binomial experiment in which the probability of success if 50%, is:

<u>31.3% (Rounding to the nearest tenth)</u>

Let's recall that the formula for calculating the probability of exact successes is:

P(k out of n) =   (n!/k!(n-k)!) * (p∧k*(1-p)∧(n-k))

in our case p=0.5, n=6, k=3

(n!/k!(n-k)!) = 20 and (p∧k*(1-p)∧(n-k)) = 0.015625

20 * 0.015625 = 0.3125

5 0
3 years ago
At the same time, two trains start toward each other on parallel tracks, 450 miles apart. Train A’s constant rate is 55 mph. Tra
r-ruslan [8.4K]

55 + 65 = 120

450/120 = 3.75 hrs

= 3h 45m


3 0
4 years ago
A ball moves in a straight line has an acceleration of a(t) = 2t + 5. Find the position function of the ball if its initial velo
Vlad1618 [11]

Answer:

s(t) = frac{t^3}{3} + \frac{5t^2}{2} - 3t + 12

Step-by-step explanation:

Relation between acceleration, velocity and position:

The velocity function is the integral of the acceleration function.

The position function is the integral of the velocity function.

Acceleration:

As given by the problem, the acceleration function is a(t) = 2t + 5

Velocity:

v(t) = \int a(t) dt = \int (2t+5) dt = \frac{2t^2}{2} + 5t + K = t^2 + 5t + K

In which K is the constant of integration, which is the initial velocity. So K = -3 and:

v(t) = t^2 + 5t - 3

Position:

s(t) = \int v(t) dt = \int (t^2 + 5t - 3) = \frac{t^3}{3} + \frac{5t^2}{2} - 3t + K

In which K, the constant of integration, is the initial position. Since it is 12:

s(t) = frac{t^3}{3} + \frac{5t^2}{2} - 3t + 12

4 0
3 years ago
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MrRissso [65]

The formula for volume of a sphere is V = 4/3 x PI x r^3

r is 1/2 the diameter = 9 inches.

Volume = 4/3  x  3.14 x 9^3 = 3,052 cubic inches.

8 0
3 years ago
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