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
natali 33 [55]
3 years ago
9

For women at hartford college, times to run 400 meters are normally distributed with a mean of 84 seconds and a standard deviati

on of 7 seconds. what percentage of the times are more than 91 seconds? more than 63 seconds?
Mathematics
1 answer:
pashok25 [27]3 years ago
4 0


z=(63-84)/3= -21/7= -3
P(x>63)=p(z > -3) = .9987 or 99.87%
You might be interested in
HELP PLEASEEEE!!
emmasim [6.3K]

31.0 degrees

TanX wich is 30/50

same thing as 30 divided by 50

7 0
3 years ago
Evaluate −4x − y + 4 when x = −14 and y = 3
miskamm [114]

Answer:

57

Step-by-step explanation:

-4x-y+4

plug in the numbers for the letters

-4(-14)-3+4

multiply -4(-14)= 56

56-3+4

subtract 3

53+4

add 4

57

5 0
3 years ago
Read 2 more answers
Classify the triangle by its angles and sides.
r-ruslan [8.4K]

Answer:

C

Step-by-step explanation:

This triangle has a right angle so it is right.

It also has three different sides so it is scalene.

C is the answer

8 0
3 years ago
Given: SY and TZ, transversal UX ∠YVW and _______ are alternate interior
Bond [772]

< yvw and < twv   are alternate interior angles


opposite sides of the transversal and inside are alternate interior angles

4 0
3 years ago
Read 2 more answers
Please answer quickly, thank you for your help
RoseWind [281]

Answer:

-6<x<-9

Step-by-step explanation:

if x+9<0 and 2x>-12

x<-9

x>-6

X is smaller than -9 but greater than -6.

The solution is -6<x<-9

6 0
3 years ago
Read 2 more answers
Other questions:
  • I'm having trouble with this absolute value question--please help!
    12·2 answers
  • Geometry help #29 please help
    10·1 answer
  • The dartboard represented below has 3 circular areas with point values of 10, 6, and 4 points. The radii of the circles are 3 in
    10·2 answers
  • Company's quality cost report is to be based on the following data: Supervision of testing and inspection activities $73,000 Sta
    5·1 answer
  • Write an equation of the line parallel to x+2y=-4 through the point (-8,5)<br> show all work
    6·1 answer
  • I'm honestly confused help
    6·1 answer
  • Due at 11:59 P.M. Desperate
    13·1 answer
  • Evaluate
    13·1 answer
  • Mary and Julie both have a goal of raising $1000 for
    13·1 answer
  • Use the discriminant to describe the roots of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!