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IceJOKER [234]
3 years ago
8

Please answer I'm begging!!!

Mathematics
1 answer:
Alisiya [41]3 years ago
4 0

Keisha ran 2.4 miles more than Jamal.

Keisha ran 8.5 miles, how many miles did Jamal run?


m = the number of miles Jamal ran


2.4 + m = 8.5

[Keisha ran 2.4 more miles than Jamal(m), she ran a total of 8.5 miles]


2.4 + m = 8.5   Subtract 2.4 on both sides

m = 6.1


Jamal ran 6.1 miles (Your answer is the 2nd option)

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A cable car starts off with n riders. The times between successive stops of the car are independent exponential random variables
nikitadnepr [17]

Answer:

The distribution is \frac{\lambda^{n}e^{- \lambda t}t^{n - 1}}{(n - 1)!}

Solution:

As per the question:

Total no. of riders = n

Now, suppose the T_{i} is the time between the departure of the rider i - 1 and i from the cable car.

where

T_{i} = independent exponential random variable whose rate is \lambda

The general form is given by:

T_{i} = \lambda e^{- lambda}

(a) Now, the time distribution of the last rider is given as the sum total of the time of each rider:

S_{n} = T_{1} + T_{2} + ........ + T_{n}

S_{n} = \sum_{i}^{n} T_{n}

Now, the sum of the exponential random variable with \lambda with rate \lambda is given by:

S_{n} = f(t:n, \lamda) = \frac{\lambda^{n}e^{- \lambda t}t^{n - 1}}{(n - 1)!}

5 0
3 years ago
Please answer this friends I am stuck ?
goblinko [34]

Answer:

<u>10°C average temperature</u>

Step-by-step explanation:

Average Temperature = Lowest + 17

= -7 + 17

= 17 - 7

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4 0
3 years ago
In lancaster, the library is 9 miles due south of the courthouse and 4 miles due west of the
skad [1K]

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8 0
2 years ago
If someone could help me out with this, I would greatly appreciate it!!
kati45 [8]

We are given that revenue of Tacos is given by the mathematical expression -7x^{2}+32x+240.

(A) The constant term in this revenue function is 240 and it represents the revenue when price per Taco is $4. That is, 240 dollars is the revenue without making any incremental increase in the price.

(B) Let us factor the given revenue expression.

-7x^{2}+32x+240=-7x^{2}+60x-28x+240\\-7x^{2}+32x+240=x(-7x+60)+4(-7x+60)\\-7x^{2}+32x+240=(-7x+60)(x+4)\\

Therefore, correct option for part (B) is the third option.

(C) The factor (-7x+60) represents the number of Tacos sold per day after increasing the price x times. Factor (4+x) represents the new price after making x increments of 1 dollar.

(D) Writing the polynomial in factored form gives us the expression for new price as well as the expression for number of Tacos sold per day after making x increments of 1 dollar to the price.

(E) The table is attached.

Since revenue is maximum when price is 6 dollars. Therefore, optimal price is 6 dollars.


7 0
3 years ago
What is the volume of the figure shown?
forsale [732]

Answer:

656.25m^3

Step-by-step explanation:

Also 1/2 is equivalent to 0.5

25*17.5*1.5=656.25

8 0
3 years ago
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