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
Lady bird [3.3K]
3 years ago
9

Which is relatively​ better: a score of 79on a psychology test or a score of 48on an economics​ test? scores on the psychology t

est have a mean of 85and a standard deviation of 5.scores on the economics test have a mean of 52and a standard deviation of 3?
Mathematics
1 answer:
igomit [66]3 years ago
8 0
Psychology 

<span>z =(48-87)/14 </span>

<span>z = -2.796 </span>
<span>Economics </span>

<span>z =(52-53)/8 </span>

<span>z = -0.125 </span>

<span>The score of Economics is better.</span>
You might be interested in
In parallelogram PQRS, PQ =4x+28, QR=x+31, RS = 10X+4. Which of the
Doss [256]

Answer:

44

Step-by-step explanation:

1) we know that opposite sides of a parallelogram are congruent so

4x+28=10x+4

2) subtract 4 on both sides

4x+24=10x

3)subtract 4x on both sides

24=6x

4)divide by 6 on both sides

4=x

5)substitute for x

length of RS =10(4)+4

length of RD=44

3 0
3 years ago
Graph the quadratic and step by step please y=x^2+1​
mestny [16]
Y=5 because you add 4+1=5
3 0
3 years ago
Given f(x) and g(x) = f(k⋅x), use the graph to determine the value of k.
rewona [7]
Step 1
Find the equation of f(x)
we have the points
(-10,-6) and (0,4)
Find the slope m

The function in slope intercept form is equal to

we have

-----> the point (0,4) is the y-intercept
substitute

step 2
Find the equation of g(x)
we have the points
(-2,-6) and (0,4)
Find the slope m

The function in slope intercept form is equal to

we have

-----> the point (0,4) is the y-intercept
substitute

step 3
Find the value of k
we have

-----> equation A
-----> equation B
----> equation C
substitute equation A and equation C in equation B and solve for k

3 0
3 years ago
Hi if u could help me that'd be great
WINSTONCH [101]

Answer:

1 hour and 45 minutes

and 1 hour

Step-by-step explanation:

x= run

y= walk

5x+2.5y = distance

5x+2.5(1.5)=12.5

solve for x

5x=8.75

x=1.75

1.75 in hours is 1 hour and (60*.75)=45

1 hour and 45 minutes

" If the marathon race participant ran for 2 hours, how many hours did the participant walk?"

We use the same equation

5x+2.5y=distance

we'll assume that they till walked 12.5 miles

which means that

5(2)+2.5y=12.5

solve for y

2.5=2.5y

y=1

1 hour

8 0
2 years ago
Read 2 more answers
If you sleep 33% of the year, how many months do you spend sleeping?
Oksanka [162]

Answer:

3.96 months

Step-by-step explanation:

12 months in a year

12 * 33%= 3.96 months

4 0
2 years ago
Other questions:
  • The length of a Rectangle is 4 inches more than the with the perimeter is 4 inches find the length and the width
    14·1 answer
  • Please help me with this problem​
    12·1 answer
  • It is known that the graph of the function y= x goes through the point A(4, −.5). Find k and plot its graph.
    13·1 answer
  • Jasmine is a receptionist at doctors office. She books 36 appointments each day. Four out of every 24 appointments are canceled.
    5·1 answer
  • Write 75 degrees in full form
    6·2 answers
  • Consider the logarithms base 5. For each logarithmic expression below, either calculate the value of the expression or explain w
    13·1 answer
  • What is 10.6 as a fraction
    8·1 answer
  • Find the length of side x in simplest radical form with a rational denominator.
    5·1 answer
  • Please answer the following<br><br>please explain how you got your answer
    12·1 answer
  • What is the largest integer that is below square root of 28?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!