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
lions [1.4K]
2 years ago
14

The scores on a test are normally distributed with a mean of 210 and a standard deviation of 20. What is the score that is 1 dev

iation (SD) above the mean?
Mathematics
1 answer:
telo118 [61]2 years ago
8 0

Answer:The score above the mean is 50 percent.

Step-by-step explanation:

You might be interested in
N+3/4=1/4 solve for n
Hitman42 [59]

Answer:

N = -1/2

Step-by-step explanation:

We are adding in this, so we need to do the opposite to both sides, to get N by itself.

N + 3/4 - 3/4 = 1/4 - 3/4

N = -2/4 or, simplified, -1/2

6 0
2 years ago
Solve F=D+Drt for t.....
Anuta_ua [19.1K]

Answer:

t = \frac{-D+F}{Dr}

Step-by-step explanation:

Step 1: Flip the equation.

  • Drt + D = F

Step 2: Subtract D from both sides.

  • Drt + D - D = F - D
  • Drt = -D + F

Step 3: Divide both sides by Dr.

  • \frac{Drt}{Dr} = \frac{-D+F}{Dr}
  • t = \frac{-D+F}{Dr}

6 0
2 years ago
For which of the following displays of data is it not possible to find the mean?
myrzilka [38]

Answer: Histogram

You can eliminate the stem and leaf plot, since it tells you the amount of values.

You can eliminate the dot plot, since it also shows you the number of values.

You can eliminate the frequency table, since it calculates the frequency of a number.

Thus, the answer is the histogram.

8 0
3 years ago
Read 2 more answers
What number must be added to the expression below to complete the square? x2+x
iren2701 [21]

Answer:

answer is 1/4

Step-by-step explanation:

proof is (x-1/2)²= x²-2*1/2*x+1/4= x²-x+1/4

4 0
3 years ago
What is the point-slope form of the equation of a line that passes through the point (1, 4) and has a slope of −3?
zmey [24]
So y=mx+b
m=slope

y=-3x+b
subsitutue 1 for x and 4 for  y
4=-3(1)+b
4=-3+b
add 3 to both sides
7=b

the equaiton is y=-3x+7
3 0
4 years ago
Other questions:
  • Draw a quuck picture to solve. write the difference. 43-17 in tens and ones
    8·1 answer
  • Precalculus only right answer please and thank you. Help me
    9·1 answer
  • Bonita is painting walls. Each wall is the same area and requires 2/5 gallon of paint.
    15·1 answer
  • A 2% suspension in saline contains how many ml per 5 ml saline?
    13·1 answer
  • Find the greatest common factor of 24 and 76_______________________
    6·2 answers
  • 8 1/3% as a fraction
    11·1 answer
  • I NEED HELP PLEASE 10 POINTS
    15·1 answer
  • HELP PLEASE FASTTT !! ANYONE??!
    14·1 answer
  • Solve the inequality. Help appreciated
    9·1 answer
  • PLEASE HELP ASAP!!! I WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!