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
3241004551 [841]
3 years ago
12

Please answer number 1 I give brainliest thank you!

Mathematics
2 answers:
prohojiy [21]3 years ago
5 0

Answer:

Option C

Step-by-step explanation:

Add all grades together:

79 + 80 + 92 + 92 + 81 + 100 + 88 + 98 + 71 + 100 + 91 + 90 = 1062

Divide the total by the number of grades in the set:

1062/12 = 88.5

The average of the grades is 88.5%, therefore Option C should be the correct answer.

goldfiish [28.3K]3 years ago
4 0

Answer:

Step-by-step explanation:

79+80+92+92+81+100+88+98+71+100+91+90

=1,062/12 = 88.5

You might be interested in
Graph the line with slope -3 passing through the point (2,4)
sveticcg [70]

Answer:

f(x) = -3x + 10

Step-by-step explanation:

Substitute values to find b;

y=mx+b

y=-3x+b

<em>Replace X and Y</em>

4=-3(2)+b

4=-6+b

<em>Swap sides to set equal to b. Swapping causes sign change</em>

4+6=b

10=b

4 0
3 years ago
What is the answer to the question?​
Anuta_ua [19.1K]

Answer:

Given : PQ = RQ

to find : angle B

  • PQ = RQ
  • Angle B = angle QRP ( angle opposite to equal side are equal). ...(1)
  • angle QRP + 140° = 180° ( linear pair)
  • angle QRP = 180° - 140°
  • angle QRP = 40°
  • from equation (1)
  • Angle B = angle QRP = 40°

4 0
3 years ago
Read 2 more answers
If you go out to eat with 3 friends and your meal was $72.50, what should you leave for gratuninty if you want to tip your waite
kvv77 [185]

Answer:

$10.88 or round up to $11

Step-by-step explanation:

Since 15 is expressed as a percent, you can convert it to a decimal.

.15, which can also be 15/100 if you were to write it as a fraction.

You are trying to find 15% of 72.50 so you would need to multiply your new decimal (.15) to your meal total. This will give you 10.875 or 10.88.

5 0
3 years ago
Both sets of values have an average of 13. Is Set A's standard deviation smaller, larger, or about the same as Set B's? (Note: T
Softa [21]

Answer:

  Set A's standard deviation is larger than Set B's

Step-by-step explanation:

Standard deviation is a measure of variation. One way to judge the value of standard deviation is by looking at the range of the data. In general, a dataset with a smaller range will have a smaller standard deviation.

The range of data Set A is 25-1 = 24.

The range of data Set B is 18-8 = 10.

Set A's range is larger, so we expect its standard deviation to be larger.

__

The standard deviation is the root of the mean of the squares of the differences from the mean. In Set A, the differences are ±12, ±11, ±10. In Set B, the differences are ±5, ±3, ±1. We don't actually need to compute the RMS difference to see that it is larger for Set A.

Set A's standard deviation is larger than Set B's.

5 0
3 years ago
A children's inflatable pool takes 22 minutes to fill with an electric air pump. It takes 50 minutes to let the air out of the p
WARRIOR [948]
Im assuming it has the same amount of air pressure so it wold take roughly  double the time. So I would say 44 minutes.
6 0
3 years ago
Other questions:
  • |43|-|-20| what is the answer
    7·2 answers
  • The product of two decimals less than 1is less than either of the factors
    15·1 answer
  • You have a gross income of $117,151 and are filing your tax return singly. You claim one exemption and can take a deduction of $
    14·2 answers
  • Evaluate each expression when a = -4 and b = 3<br><br>1.) ab<br>2.) 2a + 3b <br>2.) 2(a - b)​
    12·1 answer
  • If a rectangular prism has a volume of 1,890 feet, a height of 15 feet, and a width of 18 feet, what is the length?
    14·1 answer
  • Evaluate find the degree of a polynomial (y³-2)(y²+11)​
    13·1 answer
  • Which fraction is equivilent to -2/3
    11·1 answer
  • 2w + y = 6<br> a. Find y if w = -4<br> b. Find y if w = 10
    12·2 answers
  • A pizza has a diameter of 16 inches. What is the best approximation for the circumference of the pizza? Use 3. 14 to approximate
    13·1 answer
  • Oliver and Layla each built a rectangular prism with centimeter cubes. Both prisms have a volume of 24 cubic centimeters but the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!