Which has a value closest to 9?<br> 63<br> 110<br> 99<br> 183

The radio broadcast of AM station KTBC can be heard in the neighboring towns of Waterville and Newport. Of the total number of r

maria [59]

Answer: The required probability is 22.5%.

Step-by-step explanation:

Since we have given that

Probability of radio listeners live in Waterville = 0.75

Probability of radio listeners live in Newport = 0.25

Probability of radio station KTBC in Waterville = 0.20

Probability of radio station KTBC in Newport = 0.30

So, using "Multiplication rule of Probability":

Probability that the listener will be tuned in to station KTBC is given by

$0.75\times 0.20+0.25\times 0.30\\\\=0.15+0.075\\\\=0.225\\\\=22.5\%$

Hence, the required probability is 22.5%.

6 0

3 years ago

As a freshman, suppose you had to take two of four lab science courses, one of two literature courses, two of three math courses

Sergeeva-Olga [200]

Answer:

We have 252 different schedules.

Step-by-step explanation:

We know that as a freshman, suppose you had to take two of four lab science courses, one of two literature courses, two of three math courses, and one of seven physical education courses.

So from 4 lab science courses we choose 2:

$C_2^4=\frac{4!}{2!(4-2)!}=6$

So from 2 literature courses we choose 1:

$C_1^2=\frac{2!}{1!(2-1)!}=2$

So from 3 math courses we choose 2:

$C_2^3=\frac{3!}{2!(3-2)!}=3\\$

So from 7 physical education courses we choose 1:

$C_1^7=\frac{7!}{1!(7-1)!}=7$

We get: 6 · 2 · 3 · 7 = 252

We have 252 different schedules.

5 0

3 years ago

While shopping , lucinda

Novay_Z [31]

She originally had $320 in her savings. 48 times 100= 4,800. 4,800 divided by 15=320.

8 0

3 years ago

A car rental service charges a one-time fee of $19.99 in addition to $0.29 per mile drive. If the final total for renting the ca

jenyasd209 [6]

Answer:

19.99+ 0.29m = 73.93

Step-by-step explanation:

bc u add 19.99 extra to every m for .29 (.29m)= and the total is 73.93

6 0

4 years ago

Read 2 more answers

A rectangle with an area of 3990 cm2 is x centimeters wide and (x+4) centimeters long. To the nearest tenth of a centimeter, the

Karolina [17]

Answer: width:60.2 cm

Length: 64.2 cm

Step-by-step explanation:

Given

The area of the rectangle is $3990\ cm^2$

Width of the rectangle is $x\ cm$

Length of the rectangle is $x+4\ cm$

Area of the rectangle is the product of length and width

$\therefore 3990=(x+4)x\\\Rightarrow 3990=x^2+4x\\\Rightarrow x^2+4x-3990=0\\\Rightarrow x=60.198\ or\ -65.198\ cm\\\text{Neglecting negative term}\\\Rightarrow x=60.198\approx 60.2\ cm$

Width of the rectangle is $60.2\ cm$

Length of the rectangle is $60.2+4=64.2\ cm$

6 0

3 years ago

Which has a value closest to 9? 63 110 99 183