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
Lerok [7]
4 years ago
9

Jennifer scores a 77 on her algebra 2 test. The mean on the test was 73. The standard deviation on the test was 5. What was her

Z-score
Mathematics
1 answer:
MA_775_DIABLO [31]4 years ago
7 0

Answer:

  0.80

Step-by-step explanation:

The z-score is found from the formula ...

  Z = (X -μ)/σ

  Z = (77 -73)/5 = 4/5 = 0.80

Jennifer's Z-score was 0.80.

You might be interested in
What is the slope of the line through -4,2 and 3,-3
Anvisha [2.4K]

Answer:

(-3-2)/(3+4)= -5/7= m

3 0
3 years ago
A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 70 p
nikklg [1K]
X = large boxes and y = small boxes

x + y = 70.....x = 70 - y
60x + 65y = 4300

60(70 - y) + 65y = 4300
4200 - 60y + 65y = 4300
5y = 4300 - 4200
5y = 100
y = 100/5
y = 20 <=== the small boxes weigh 20 lbs

x + y = 70
x + 20 = 70
x = 70 - 20
x = 50 <== and the large boxes weigh 50 lbs
5 0
3 years ago
If w÷3=3(w-1)-1 find the value of w<br><br>​
Licemer1 [7]

Answer:

3/2

Step-by-step explanation:

w/3=3(w-1)-1

w=9w-9-3

-8w=-12

w=3/2

5 0
3 years ago
4. Joe likes sports. He has 4 soccer medals, 1 tennis medal, 3 swimming medals and 5
Lady_Fox [76]

Answer:

4:3

Step-by-step explanation:

He has 4 Soccer Medals, 3 Swimming Medals

So it would be 4:3

6 0
3 years ago
Tara started reading at 8:50 A.M. and stopped reading at 11:05 A.M. How long did Tara read?
Gwar [14]
She read 3 hours and 15 minutes.

Hope this helps!
5 0
3 years ago
Other questions:
  • Which mappings is a function?<br><br> A. W<br><br> B. X<br><br> C. Y<br><br> D. Z
    11·1 answer
  • Jesse is solving the equation x2−10x=2
    15·1 answer
  • Round to the nearest tenth 6.2x+1.2=8.9
    15·1 answer
  • Plsss provide Explanation to IF you can...very confused!!
    11·2 answers
  • Please help asap! xoxo
    8·1 answer
  • HELP ASAP!! No links or photos please. Don't answer if you don't know it
    7·1 answer
  • 7.8%(54.99)+54.99=?<br>simplify the answer ​
    6·1 answer
  • Question 12 Multiple Choice Worth 1 points)
    10·1 answer
  • A radioactive substance decays exponentially with a half-life of 500 years. After 1500 years, what percent of the radioactive ma
    7·1 answer
  • John runs a computer software store. Yesterday he counted 140 people who walked by the store, 63 of whom came into the store. Of
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!