1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SashulF [63]
3 years ago
11

An airliner carries 50 passengers and has doors with a height of 70 in. Heights of men are normally distributed with a mean of 6

9.0 in and a standard deviation of 2.8 in. Complete parts​ (a) through​ (d). a. If a male passenger is randomly​ selected, find the probability that he can fit through the doorway without bending. The probability is 0.6406. ​(Round to four decimal places as​ needed.) b. If half of the 50 passengers are​ men, find the probability that the mean height of the 25 men is less than 70 in. The probability is 0.9633. ​(Round to four decimal places as​ needed.)
Mathematics
1 answer:
Korolek [52]3 years ago
3 0

Answer:

dfdfdfdfdfd

Step-by-step explanation:

You might be interested in
Who is correct Julie or Jeremy
Sedaia [141]

Answer:

Julie

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Y = -2x + 13 when x = 6
elena-14-01-66 [18.8K]

Answer: 1

Work: After plugging in the 6 in the X, the new equation is -2(6) + 13. After doing the multiplication of -2 and 6, you get -12. Add -12 + 13, and the answer (Or y) equals 1.

<em>I hope this helps, and Happy Holidays! :)</em>

6 0
3 years ago
Read 2 more answers
The angle θ 1 is located in Quadrant IV, and cos ⁡ ( θ 1 ) = 9/ 19 , theta, start subscript, 1, end subscript, right parenthesis
Firdavs [7]

Answer:

sin\theta_1 =  - \frac{2\sqrt{70}}{19}

Step-by-step explanation:

We are given that \theta_1 is in <em>fourth</em> quadrant.

cos\theta_1 is always positive in 4th quadrant and  

sin\theta_1 is always negative in 4th quadrant.

Also, we know the following identity about sin\theta and cos\theta:

sin^2\theta + cos^2\theta = 1

Using \theta_1 in place of \theta:

sin^2\theta_1 + cos^2\theta_1 = 1

We are given that cos\theta_1 = \frac{9}{19}

\Rightarrow sin^2\theta_1 + \dfrac{9^2}{19^2} = 1\\\Rightarrow sin^2\theta_1 = 1 - \dfrac{81}{361}\\\Rightarrow sin^2\theta_1 =  \dfrac{361-81}{361}\\\Rightarrow sin^2\theta_1 =  \dfrac{280}{361}\\\Rightarrow sin\theta_1 =  \sqrt{\dfrac{280}{361}}\\\Rightarrow sin\theta_1 =  +\dfrac{2\sqrt{70}}{19}, -\dfrac{2\sqrt{70}}{19}

\theta_1 is in <em>4th quadrant </em>so sin\theta_1 is negative.

So, value of sin\theta_1 =  - \frac{2\sqrt{70}}{19}

6 0
3 years ago
If the customer's order came to $6.22 and he gave you $20.25 what is his change
taurus [48]
He'll get $14.03 because 20.25 is what he gave but it only came up to 6.22 so 20.25-6.22=14.03
7 0
3 years ago
Read 2 more answers
Which ordered pair represents the solution to the system of equations? {−5x+7y=−196x−2y=10
k0ka [10]
Answer:
x = 1
y = -2

Explanation:
First, solve for x by subtracting 7y from both sides of the first equation and then divide both sides by -5.

-5x + 7y = -19
-5x + 7y - 7y = -19 - 7y
-5x = -19 - 7y
-5x/ -5 = -19 - 7y/ -5
x = -19 - 7y/ -5

Next, substitute the value of x into the second equation and solve.

6 - (-19 - 7y)/ 5 - 2y = 10
- 6(-19 - 7y)/ 5 - 2y = 10

Then, solve for y

- 6(-19 - 7y)/ 5 - 2y = 10
-6(-19 - 7y) - 10y = 50
114 + 42y - 10y = 50
144 + 32y = 50
32y = 50 - 144
32y = -64
32y/ 32 = -64/ 32
y = -2

Finally, substitute the value of y into the x value we found earlier and solve

x = - 19 - 7y/ 5
x = - 19 - 7 • -2/ 5
x = 1
8 0
3 years ago
Other questions:
  • An Internet cafe charges 10 cents for each page printed graph the relationship between the number of pages printed in the printi
    12·1 answer
  • Hey can someone help me with this ASAP this is really hard
    15·1 answer
  • Find the volume of a pyramid with a square base where the perimeter of the base is 18.4 cm in the height of the pyramid is 20.6
    10·1 answer
  • Evaluate: 3(2f - g) + 4h for f = 2, g = -1 and h = 3
    12·2 answers
  • 6 divide 2832 <br> Help me. Idk the answer
    8·2 answers
  • Hi how do i do this please
    8·2 answers
  • What is the formula for area of a parallelogram?
    8·1 answer
  • Determine the margin of error for a 90% confidence interval to estimate the population mean when s = 40 for the sample sizes bel
    8·1 answer
  • MTH107A: Unit 2 Lesson 2.14
    12·2 answers
  • 3) Jack has $400 and is going to start saving $30 per week. Sally has $225 and is going to start saving $55 per
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!