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
Igoryamba
3 years ago
7

In your own words, explain HOW to find the standard deviation of this data set. (20 points). What does the standard deviation te

ll you about this data? (20 points). Dr. Cwetna recorded all of the grades on a unit test on the chart below. plz somebody help I need this by today.
Mathematics
1 answer:
ipn [44]3 years ago
6 0
I need the choices please
You might be interested in
Which is the simplified form of the expression 3(7/5x+4) - 2(3/2 - 5/4x)?
Kruka [31]

Answer:

B. \frac{67}{10} x + 9

Step-by-step explanation:

Simplify the expression. Remember to go by the order of operations, or PEMDAS.

1) First, distribute the numbers outside of the set of parentheses to the terms inside the set of parentheses next to them. Then, simplify the fractions.

3(\frac{7}{5} x + 4) -2 (\frac{3}{2} -\frac{5}{4} x)

\frac{21}{5}x + 12  - \frac{6}{2} + \frac{10}{4} x

\frac{21}{5} x + 12 - 3 + \frac{10}{4} x

2) Finally, combine like terms. (This means to add or subtract constants and to add or subtract terms with the same variables.) You may need to convert terms to the same denominator in order to do so easier. Then, reduce the fraction.

\frac{21}{5} x + 9 + \frac{10}{4}x \\\frac{84}{20}x + \frac{50}{20}x + 9 \\\frac{134}{20}x + 9 \\\frac{67}{10}x + 9

Thus, the answer is \frac{67}{10} x + 9.

8 0
3 years ago
Multiply mixed numbers 3 1/2 X 2 1/3
cricket20 [7]

Answer:

8 1/6

Step-by-step explanation:

that is da answer bbbbb

6 0
3 years ago
Read 2 more answers
c.) The sonar of a navy cruiser detects a submarine that is 4000 feet from the cruiser. The angle between the water line and the
Kamila [148]

Answer:

2236.77 feets

Step-by-step explanation:

From the attached picture, we are to find x, which is the vertical depth of the submarine.

Using trigonometry based on the illustration in the diagram:

Sinθ = opposite / hypotenus

Sinθ = x (depth of submarine) / distance from ship (4000)

Hence,

Sinθ = x / 4000

θ = 34°

Sin34 = x / 4000

0.5591929 * 4000 = x

2236.7716 = x

Hence, depth of submarine = 2236.77 feets

7 0
3 years ago
What is the simplest form of the following expression?
S_A_V [24]
\sqrt[3]{ \frac{12x ^{2} }{16y} } =  \sqrt[3]{\frac{3x ^{2} }{4y} }
7 0
3 years ago
Read 2 more answers
BEST ANSWER GETS BRAINLIEST
ElenaW [278]

Answer:

he should use the kohls cash first

Step-by-step explanation:

He should use the kohls cash first , then the 25% off. He should do this because the cashier will ask him after he hands her the kohls cash about the discount.

5 0
3 years ago
Read 2 more answers
Other questions:
  • HELP PLS GIVING BRAINLIEST
    10·1 answer
  • 5,897 x 67 =<br> What is this
    9·1 answer
  • What is the simplest fraction for 57/76?
    10·1 answer
  • Need help quick not many points cause I'm low on them will make it brainlies answer if right
    5·1 answer
  • Mrs. Sawyer estimates that a quiz will take students no fewer than 11 minutes but no more than 41 minutes to complete. She allot
    8·2 answers
  • Find the value of x
    5·2 answers
  • Robert makes $951 gross income per week and keeps $762 of it after tax withholding. How many allowances has Robert claimed? For
    8·1 answer
  • Solve the eliminate <br>5a - 2b = 14<br>2a + 2b = 14​
    11·2 answers
  • Mark all of the transformations that will result in the object changing size.
    14·1 answer
  • Will you please help me
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!