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
iVinArrow [24]
2 years ago
8

The 400-meter race times at a state track meet are normally distributed with a mean

Mathematics
1 answer:
rjkz [21]2 years ago
8 0

Answer:

P = 1.214

Step-by-step explanation:

Draw a normal probability curve.

Find the z score which comes out to be 0.18 (0.181578947)

look for the probability in the table.

look across 0.1 and under 8.

Get the probability and add 0.5 to it

so rhats:

0.714 + 0.5 = 1.214

You might be interested in
Find the measures of the labeled angles
Andrei [34K]

Answer:

135 degrees \

Step-by-step explanation:

5x= x+108

Subtract x from the right

4x= 108

divide by 4

x= 27

Substitute for x in the original equation

(x+108)

(27)+(108)

= 135 degrees

4 0
3 years ago
Miguel is posting photos on a school website. He has 48 photos, and he is allowed to
weeeeeb [17]

Answer:

12p=48

Step-by-step explanation:

8 0
2 years ago
The sum area please.
Ann [662]

Answer:

4xy+24y^2−7x−38y−7

Step-by-step explanation:

(-7+4y) (6y+x+1)

-7*6y= -42y

-7*x= -7x

-7*1= -7

4y*6y= 24y²

4y*x= 4yx

4x*1= 4y

Add them up

3 0
2 years ago
What is 7+10x-2x-2=-3
Ivahew [28]
7+10x-2x-2=-3

—-Combine like terms...10x-2x=8x and 7-2=5

8x+5=-3
——subtract 5 on both sides.. the 5’s will cancel each other and -3-5=-8

8x=-8
——Divide 8 on both sides...the 8’s will cancel out and -8 divided by 8 = -1

Answer: x = -1
6 0
3 years ago
A theater has 40 seats in the first row, 43 seats in the second row, 46 seats in the third row, and so on. How many seats are th
iris [78.8K]
94 seats

There are 2 ways to do this one: 

1. 18 x 3 = 54
54 + 40 = 94

2. 40 + 3 + 3 + 3.... and so on. 



Let me know if this was helpful! 
4 0
2 years ago
Read 2 more answers
Other questions:
  • He list shows the growth in centimeters of 12 plants during one week. 6, 7, 7, 8, 8, 8, 9, 9, 10, 11, 11, 14 Which box plot best
    8·1 answer
  • Find the zeros of the function. Write the smaller solution first, and the larger solution second. f(x)=(x+8)^2−1
    14·1 answer
  • Hi there can anyone help me out with this because I'm really struggling with this
    13·1 answer
  • Deb deposited $70 in a savings account earning 10% interest, compounded annually.
    13·1 answer
  • EZ Car Rental charges $40 per day and $0.25 per mile driven. Ace Car Rental charges
    14·1 answer
  • Do long division for each fraction ✔️
    12·2 answers
  • What is the answer to the problem: 1.234x139.893<br> and 674.983x278.475
    13·2 answers
  • Can you help? Please show work. Thank You.
    11·1 answer
  • What is the mean?<br><br> 2, 5, 4, 8, 4, 10, 2<br><br> TYPE ONLY THE NUMERIC ANSWER
    13·1 answer
  • Question 2 of 10
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!