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
Sindrei [870]
2 years ago
11

This probability distribution shows the typical grade distribution for a Geometry course with 35 students. Find the probability

that a student earns a grade of A, B, or C. Enter a decimal rounded to the nearest hundredth.

Mathematics
2 answers:
iris [78.8K]2 years ago
5 0

Answer:

.86

Step-by-step explanation:

There are 5+10+15 = 30 students that earned and A, B or C

P( A, B or C) = number of students that earned and A ,B , C / total

                    =30/35

                    =.857142857

   Rounded to the nearest hundredth

                   =.86

iris [78.8K]2 years ago
5 0
  • Total marks=5+10+15+3+2=36
  • No of students earned A,B,C=5+10+15=30

\\ \rm\Rrightarrow P(A,B,C)

\\ \rm\Rrightarrow \dfrac{30}{36}

\\ \rm\Rrightarrow 0.85

\\ \rm\Rrightarrow 0.86

You might be interested in
(4+5)-2 thxs for answering!!!!!!!!!!!!!!
Arisa [49]

Answer: 7

Step-by-step explanation:

(4+5)-2

You can either remove brackets and just do a little addition and subtraction.

4+5-2

9-2\\7

So the answer is 7.

Or just finish things inside the brackets first.

(4+5)-2\\9-2\\7

So the answer is 7.

3 0
3 years ago
Using the rule of 72, how long will it take for the principal to double with an annual compound interest rate of 6%?
I am Lyosha [343]

Answer:

C. 12

Step-by-step explanation:

With the rule of 72, you would divide 72 by the periodic interest rate to get the number of years for the principal to double

72 ÷ 6 = 12

7 0
3 years ago
The formula for the area A of a trapezoid is A=1/2(b1+b2)h, where b1 and b2 represents the lengths of the bases and h represents
aleksandr82 [10.1K]

Answer:

B. h=2A/(b1+b2) . . . . parentheses are needed

Step-by-step explanation:

Multiply the equation by the inverse of the coefficient of h. That coefficient is (b1 +b2)/2, so its inverse is 2/(b1 +b2). Parentheses are needed.

... 2A/(b1 +b2) = h

_____

<em>Comment on the answer choices</em>

As written, <em>none of them are correct</em>. The denominator can only be written without parentheses if the division bar is horizontal, and so serves also as a grouping symbol.

6 0
3 years ago
Maricela needs to write instructions for how to construct a regular hexagon inscribed in a circle. She begins by writing the fol
sammy [17]

Answer:

C

Step-by-step explanation

6 0
3 years ago
Read 2 more answers
The ability to examine the variability of a solution due to changes in the formulation of a problem is an important part of the
PilotLPTM [1.2K]

Answer:

Sensitivity Analysis

Step-by-step explanation:

Sensitivity analysis is the study of how the uncertainty in the output of a mathematical model or system (numerical or otherwise) can be divided and allocated to different sources of uncertainty in its inputs.

4 0
3 years ago
Other questions:
  • Cal earned $8.20 an hour at his eight hour a day job. He worked five days a week. How much did cal earn a week?
    7·2 answers
  • Helena lost her marbles. But then she found them and put them in 44 bags with mm marbles in each bag. She had 33 marbles left ov
    13·1 answer
  • -6+3y=12 solve for x
    6·1 answer
  • I need help please help me​
    10·2 answers
  • Write the slope-intercept form of the equation of the line through the given point with the given slope.
    8·1 answer
  • 19. Find the perimeter of a triangle if the side lengths are 3 1/2 ft, 5 2/3 ft,<br> and 4 1/6 ft.
    13·1 answer
  • Solve for x.<br> Help ASAP please!!!
    14·1 answer
  • Quick I need it help
    12·2 answers
  • 12. Find x. (x + 20)° (5x - 8)°​
    12·1 answer
  • Find x and y for this triangle
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!