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3 years ago

0825 ®

Mathematics

1 answer:

balu736 [363]3 years ago

5 0

Answer:

if n(a)=4

if n(b)=3

then n(c)= 2

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I need the answer for this problem please

Savatey [412]

Answer:

Step-by-step explanation:

Find all probabilities:

A. False

$Pr(\text{red shirt}|\text{large shirt})=\dfrac{\text{number red large shirts}}{\text{number large shirts}}=\dfrac{42}{77}=\dfrac{6}{11}\\ \\Pr(\text{large shirt})=\dfrac{\text{number large shirts}}{\text{number shirts}}=\dfrac{77}{165}=\dfrac{7}{15}$

B. True

$Pr(\text{blue shirt}|\text{large shirt})=\dfrac{\text{number blue large shirts}}{\text{number large shirts}}=\dfrac{35}{77}=\dfrac{5}{11}\\ \\Pr(\text{blue shirt})=\dfrac{\text{number blue shirts}}{\text{number shirts}}=\dfrac{75}{165}=\dfrac{5}{11}$

C. False

$Pr(\text{shirt is medium and blue})=\dfrac{\text{number medium and blue shirts}}{\text{number shirts}}=\dfrac{48}{165}=\dfrac{16}{55}\\ \\Pr(\text{medium shirt})=\dfrac{\text{number medium shirts}}{\text{number shirts}}=\dfrac{88}{165}=\dfrac{8}{15}$

D. False

$Pr(\text{large shirt}|\text{red shirt})=\dfrac{\text{number red large shirts}}{\text{number red shirts}}=\dfrac{42}{90}=\dfrac{7}{15}\\ \\Pr(\text{red shirt})=\dfrac{\text{number red shirts}}{\text{number shirts}}=\dfrac{90}{165}=\dfrac{6}{11}$

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3 years ago

The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of serv

slava [35]

Answer:

<h2>bhlhgewafhjffdgnhgreesdbjit<u>bbbbhbfghjkkbiiuu</u><u>h</u><u>h</u><u>h</u></h2>

8 0

3 years ago

a 10 gram sample of a substance that's used to detect explosives has k-value of 0.1353, find the substance half life in days, Ro

IrinaK [193]

We find the value of N₀ since we are provided with initial conditions.
The condition is that, at time t = 0, the amount of substance contains originally 10 grams.
We substitute:
10 = N₀ (e^(-0.1356)*0)
10 = N₀ (e^0)
N₀ = 10

When the substance is in half-life (meaning, the half of the original amount), it contains 5 grams. We solve t in this case.
5 = 10 e^(-0.1356*t)
0.5 = e^(-0.1356*t)
Multiply natural logarithms on both sides to bring down t.
ln(0.5) = -0.1356*t
Hence,
t = -(ln(0.5))/0.1356
t ≈ 5.11 days (ANSWER)

4 0

3 years ago

Read 2 more answers

Calculate the slope of the trend line<br> Please... :(

Ganezh [65]

Answer:

Slope is .18

Step-by-step explanation

Find two points along the line.

Calculate slope using $\frac{y2-y1}{x2-x1}$ .

I used the points (1985, .21) and (1990, .30).

7 0

2 years ago

A circle has a radius of 26.85 inches.

Vsevolod [243]

Answer:

168.61

Step-by-step explanation:

C=2*Pi*R

C=2*3.14*26.85

C=6.28*26.85

C=168.61

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3 years ago