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
MAXImum [283]
2 years ago
5

On a standardized exam, the scores are normally distributed with a mean of 135 and a

Mathematics
1 answer:
labwork [276]2 years ago
3 0

Answer:

-1

Step-by-step explanation:

mean, mu = 135.

Standard deviation = 20

X = 115

use the z score formula : z = \frac{x-mu}{standard deviation}

to get (115-135)/20 = -1

You might be interested in
Jane and Lee had dinner at The Palace The bill totaled $20 30 with tax The service
kirza4 [7]

Answer:

$3.45

Step-by-step explanation:

$20.30 / 10  = $2.30 = 10%

$2.30 / 2  = $1.15 = 5%

$2.30 + $1.15 = $3.45 = 15%

3 0
3 years ago
Simplify: 10 - 2(3+4)*
melomori [17]

Answer:  -4

Step-by-step explanation:

8 0
2 years ago
Find the distance between the points (4, 6) and (2, -6). Round to the nearest tenth.
Deffense [45]

Answer:

The correct answer is B.12.2

Step-by-step explanation:

5 0
3 years ago
17% of what number is 3.4
saw5 [17]

Answer:

20

Step-by-step explanation:

We already have our first value 3.4 and the second value 17. Let's assume the unknown value is Y which answer we will find out.

As we have all the required values we need, Now we can put them in a simple mathematical formula as below:

Step 1 ---> 3.4 = 17% × Y

Step 2 ---> 3.4 = 17/100 × Y

Multiplying both sides by 100 and dividing both sides of the equation by 17 we will arrive at:

Step 3 ---> Y = 3.4 × 100/17

Step 4 ---> Y = 3.4 × 100 ÷ 17

Step 5 ---> Y = 20

Finally, we have found the value of Y which is 20 and that is our answer.

<h3><u>*You can easily calculate 3.4 is 17 percent of what number by using any regular calculator, simply enter 3.4 × 100 ÷ 17 and you will get your answer which is 20*</u></h3>
4 0
2 years ago
a bag contains 5 grape tootsie pops and 8 chocolate tootsie pops. if juan pulls a chocolate tootsie pop out of the bag and eats
kipiarov [429]

Answer:

= 5 / 12

Step-by-step explanation:

Probability is an outcome of chance. It is a measure of outcomes of events.

To solve the probability of picking a Tootsie Pop, we must comfortably know the contents of the bag.

Number of GRAPE Tootsie pops = 5

Number of CHOCOLATE Tootsie pops= 8

Total number of Tootsie pops = The sum of both Tootsie pops

Total number = 5 + 8

= 13.

Let's note that tge question said , Juan pulls a chocolate Tootsie Pop and eats. The implication is it has reduced the total number of Tootsie Pops left in the bag.

Therefore:

The probability that the next pop he pulls out will be grape will be

Probability (Grape) = 5 / (13 -1)

= 5 / 12

The probability that the next Pop he pulls out will be a grape = 5/12

4 0
3 years ago
Other questions:
  • What is the value of -3/4 ÷ (-3 1/4)<br>​
    15·1 answer
  • Please help asap thank you
    11·1 answer
  • What is the value of x in the figure above? ^^
    15·1 answer
  • A right prism with rhombus bases is shown. The side length of each rhombus is 5 units. The height of the prism is 16 units. The
    8·2 answers
  • Jordan flipped a coin 492 times. Which of the following would be a good estimate of the number of times the coin landed on heads
    11·2 answers
  • Holly is trying to save $25,000 to put a down payment on a condominium. If she starts with $10,000 saved and saves an additional
    10·1 answer
  • "The majority of U.S. car owners still buy American cars."
    11·1 answer
  • The diagonal of a TV screen is 42 inches. The base is 38
    9·2 answers
  • 2) -9(18+ 2x)<br> show work
    11·2 answers
  • Find the cube of -2.2<br><br>pls send it in odareas pls​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!