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
Olegator [25]
3 years ago
6

Worth 60 points! First two options are Can/cannon and the last two options are identical/somewhat similar/similar/different

Mathematics
1 answer:
kotykmax [81]3 years ago
4 0

Where are they I answered

You might be interested in
Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights
Fed [463]

Answer:

a) 615

b) 715

c) 344

Step-by-step explanation:

According to the Question,

  • Given that,  A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 732 babies born in New York. The mean weight was 3311 grams with a standard deviation of 860 grams

  • Since the distribution is approximately bell-shaped, we can use the normal distribution and calculate the Z scores for each scenario.

Z = (x - mean)/standard deviation

Now,

For x = 4171,  Z = (4171 - 3311)/860 = 1  

  • P(Z < 1) using Z table for areas for the standard normal distribution, you will get 0.8413.

Next, multiply that by the sample size of 732.

  • Therefore 732(0.8413) = 615.8316, so approximately 615 will weigh less than 4171  

 

  • For part b, use the same method except x is now 1591.    

Z = (1581 - 3311)/860 = -2    

  • P(Z > -2) , using the Z table is 1 - 0.0228 = 0.9772 . Now 732(0.9772) = 715.3104, so approximately 715 will weigh more than 1591.

 

  • For part c, we now need to get two Z scores, one for 3311 and another for 5031.

Z1 = (3311 - 3311)/860 = 0

Z2 = (5031 - 3311)/860= 2  

P(0 ≤ Z ≤ 2) = 0.9772 - 0.5000 = 0.4772

  approximately 47% fall between 0 and 1 standard deviation, so take 0.47 times 732 ⇒ 732×0.47 = 344.

5 0
2 years ago
Two cars leave from the same point (A) and travel along a straight road, which are at angle of 78° to each other. If their speed
densk [106]
T=(60cos78, 60sin78)

T=(12.47, 58.69)

C=45

d=√((45-12.47)^2+58.69^2)

d≈67.1km
7 0
3 years ago
Joe is measuring the widths of doors he bought to install in an apartment complex. He
VashaNatasha [74]
This is correct trust me I know it’s the answer
4 0
2 years ago
Pleaseeehelp me !!!!
Volgvan

Answer:

Go on to photo math it's good for equations

8 0
3 years ago
Using the unit circle, determine the value of cos(-150°).
elena-14-01-66 [18.8K]
<h3>Answer:  -\frac{\sqrt{3}}{2}</h3>

Explanation:

The identity we'll use is cos(-x) = cos(x) for any value of x.

So cos(-150) = cos(150).

Then locate the angle 150 on the unit circle. The terminal point is \left(-\frac{\sqrt{3}}{2}, \frac{1}{2}\right)

The x coordinate of this terminal point is the value of cos(150).

5 0
3 years ago
Read 2 more answers
Other questions:
  • In parallelogram ABCD, the measure of angle ABC is 130, find the measure, in degrees of angle DAB
    9·2 answers
  • Please help me find the answer
    5·1 answer
  • Calculate the average rate of change for the given graph from x = 3 to x = 5 and select the correct answer below.
    14·1 answer
  • A train leaves Chicago traveling west at 60 miles per hour.An hour later,at 12 noon,another train leaves Chicago traveling east
    13·1 answer
  • Evaluate the expression 5(7-4)2÷3+11
    11·1 answer
  • Please help me find n. 1/3=n+3/4
    6·1 answer
  • PLEASE HELP ME !!!!​
    10·1 answer
  • Please no one is helping me I truly need help pls
    12·1 answer
  • Mr. Gonzales has only $42.50 to spend at a clothing store. He wants to buy a shirt that costs $29, including tax, and some brace
    9·1 answer
  • Answer and explain? I've been getting a lot of these questions wrong lately lol. ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!