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
ivanzaharov [21]
2 years ago
5

please help.....................................................................................................................

........

Mathematics
1 answer:
hodyreva [135]2 years ago
6 0
28 out of 40 is 70%, so I think the answer is 70%.
You might be interested in
Multiply. (2.5 times 10^-8) (9 times 10^-10)
Lorico [155]

The complete answer is 2.25E-17

but I think it may be A

8 0
3 years ago
Simplify (9 + 8 – 6)(4 – 5).
Temka [501]

Answer:

The answer would be - 11.

Step-by-step explanation:

9 + 8 = 17

17 - 6 = 11.

4 - 5 = 4 + - 5 = - 1

11(- 1) = 11 × - 1 = - 11

Therefor, your answer would be - 11.

Hope this helps!

5 0
3 years ago
Read 2 more answers
You recently took a statistics exam in a large class. The instructor tells the class that the scores were Normally distributed,
Lunna [17]

Answer:

b. the area to the right of 2

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X, which is also the area to the left of Z. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X, which is the area to the right of Z.

In this problem:

X = 96, \mu = 72, \sigma = 12

Z = \frac{X - \mu}{\sigma}

Z = \frac{96 - 72}{12}

Z = 2

Percentage who did better:

P(Z > 2), which is the area to the right of 2.

5 0
3 years ago
How many different ways are there to rearrange the letters of the word EXAM, if you don't care if the results is a recognizable
Vlada [557]
In this case, all letters are unique.

Start by holding the first letter:
E - XAM
E - XMA
E - MAX
E - MXA
E - AXM
E - AMX
So there are 6 combinations here.

Repeat for all 4 letters.

6 x 4 = 24

This is same as 4x3x2x1.

For 3 unique characters, it is 3x2x1.
For 5 unique characters, it is 5x4x3x2x1
And so on...
6 0
2 years ago
Enter the terms and the coefficients of the expression. −80 + 5p − 8z The terms are . The coefficients are .
9966 [12]

Answer:

Step-by-step explanations:

Hi love ,

So the terms is :

<u>-80 , 5p , -8z </u>

and the coefficients is :

<u>5 , -8</u>

<u>Thank you :)</u>

<u></u>

8 0
2 years ago
Other questions:
  • In Galveston, Texas there is a beautiful attraction called the Rainforest Pyramid which contains man plants and a variety of rai
    12·1 answer
  • There are 5 parts to this question. a. b. c. d. and e. Please be sure to label and answer all 5 parts in the space below please
    14·1 answer
  • -43/100 as a decimal
    12·2 answers
  • Does 1 ten and 16 ones make the number 26
    11·2 answers
  • A car travels 120m along a straight road that is inclined at 8° to the horizontal. Calculate the vertical distance through which
    8·1 answer
  • The amount of bacteria in a Petri dish increases at a rate proportional to the amount present. At time t=0, the amount of bacter
    11·1 answer
  • 70% of 17 is what number?
    14·2 answers
  • Which of these are statistical questions that you could ask to gather data on the types of transportation to school?
    14·1 answer
  • Erica went bowling with her friends. She paid $3 to rent shoes and then $5 for each game of bowling. If she
    12·2 answers
  • what would be the resulting difference if the line transition: width 2s, height 2s; was removed from the first css rule?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!