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
Nastasia [14]
3 years ago
15

21.

Mathematics
1 answer:
djyliett [7]3 years ago
5 0

Answer:

4.8

Step-by-step explanation:

add all values and divide it by 5

You might be interested in
In the diagram below, NO is parallel to K L. If KN = 7, NO = 10, and
Vesnalui [34]
<h3>Answer:  14</h3>

=====================================================

Work Shown:

\frac{\text{KM}}{\text{NM}} = \frac{\text{KL}}{\text{NO}}\\\\\frac{\text{KN}+\text{NM}}{\text{NM}} = \frac{\text{KL}}{\text{NO}}\\\\\frac{7+x}{x} = \frac{15}{10}\\\\10(7+x) = 15x\\\\

70+10x = 15x\\\\70 = 15x-10x\\\\5x = 70\\\\x = \frac{70}{5}\\\\x = 14\\\\\text{NM} = 14

Side note: The triangles are similar, which allows us to set up the proportion in step 1.

3 0
2 years ago
A robot can complete 8 tasks in ⅚ hour. Each task takes the same amount of time. How long does it take the robot to complete one
nikitadnepr [17]

Answer:

1 task = 6.25 minutes

The robot can complete 9.6 task in 1 hour

Step-by-step explanation:

Number of task = 8

Time taken = 5/6 of 1 hour

5/8 of 1 hour = 5/6 × 60 minutes

= 300/6

= 50 minutes

8 task takes 50 minutes

1 task = 50 minutes / 8 task

= 6.25 minutes

1 task = 6.25 minutes

x task = 60 minutes

1 : 6.25 = x : 60

1/6.25 = x / 60

1*60 = 6.25*x

60 = 6.25x

x = 60/6.25

= 9.6

x= 9.6

The robot can complete 9.6 task in 1 hour

3 0
3 years ago
Read 2 more answers
given that A=43 degrees , B=82 degrees and c=28, solve triangle ABC. Round to the nearest hundredth. A) C= 93 degrees , b= 33.8
n200080 [17]
A=43°
B=82°
c=28

1) A+B+C=180°
Replacing A=43° and B=82° in the equation above:
43°+82°+C=180°
125°+C=180°
Solving for C. Subtracting 125° both sides of the equation:
125°+C-125°=180°-125°
C=55° (option B or C)

2) Law of sines
a/sin A=b/sin B=c/sin C
Replacing A=43°, B=82°, C=55°, and c=28 in the equation above:
a/sin 43°=b/sin 82°=28/sin 55°

2.1) a/sin 43°=28/sin 55°
Solving for a. Multiplying both sides of the equation by sin 43°:
sin 43°(a/sin 43°)=sin 43°(28/sin 55°)
a=28 sin 43° / sin 55°
Using the calculator: sin 43°=0.681998360, sin 55°=0.819152044
a=28(0.681998360)/0.819152044
a=23.31185549
Rounded to one decimal place
a=23.3

 2.2) b/sin 82°=28/sin 55°
Solving for a. Multiplying both sides of the equation by sin 82°:
sin 82°(b/sin 82°)=sin 82°(28/sin 55°)
b=28 sin 82° / sin 55°
Using the calculator: sin 82°=0.990268069, sin 55°=0.819152044
b=28(0.990268069)/0.819152044
b=33.84903466
Rounded to one decimal place
b=33.8

Answer: Option B) C=55°, b=33.8, a=23.3
8 0
3 years ago
The diameter of a circle is 16 centimeters. How would you calculate the area?
kupik [55]
The answer is C
explanation
4 0
2 years ago
What is the answer. PLEASE HELP ME. urgent PLEASE.
Liono4ka [1.6K]
I think 85 square inches
6 0
3 years ago
Other questions:
  • What is BC ?<br><br> Enter your answer in the box.
    10·2 answers
  • Please help and show working out
    7·1 answer
  • How many degrees does the minute hand turn to get from 12:00 to 12:20?
    11·2 answers
  • Find the length of a leg
    12·1 answer
  • 4x-5=2-x<br> what is x?<br> explain or show your reasoning
    10·1 answer
  • Consider the following sample of fat content (in percentage) of randomly selected hot dogs: (a) Assuming that these were selecte
    13·2 answers
  • A consumer products company wants to measure the effectiveness of different types of advertising media in the promotion of its p
    5·1 answer
  • 600 is invested for 3years at a 9% how much simple interest will be earned​
    9·1 answer
  • Please Help ! Its a math problem !!! Given the tables below, what is the difference between the average rates of change over the
    5·1 answer
  • Please look at the attachment and answer my question :(
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!