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
amm1812
2 years ago
11

If the length of minute hand of a clock is 42m . How much distance minute hand will cover in 15 minutes ?

Mathematics
1 answer:
Reil [10]2 years ago
4 0

Answer: We minutes hand moves for 20minutes ,it makes 120° central angle

Length=x/360×2πr

=120/360×2×22/7×42

On simplyfing

Length=88cm

Step-by-step explanation:

You might be interested in
Use this data in the problem below. Follow the steps carefully. Round to the nearest tenth. Lot 1: Week 1: 600 Week 2: 300 Week
Dafna11 [192]

Answer:

Step-by-step explanation:

The given data set is:

Week 1: 600

Week 2: 300

Week 3: 500

Week 4: 900

The following are the steps to find the standard deviation:

Step 1. Jim enters the data and calculates the average or mean.

Mean=\frac{600+300+500+900}{4}=\frac{2300}{4}=575

Step 2. Jim calculates the deviation from the mean by subtracting the mean from each value.

Data value (x)                                                             x-{\overline{x}}

600                                                                           25

300                                                                         -275

500                                                                         -75

900                                                                          325

Step 3. Jim squares each deviation to remove negative signs.

Data value (x)                                                           (x-{\overline{x}})^2

600                                                                       625

300                                                                    75625

500                                                                      5625

900                                                                   105625

Step 4. Jim sums the squares of each deviation and divides by the count for the variance.

Variance=\frac{625+75625+5625+105625}{4}=46875

Step 5.Jim takes the square root of the variance to find the standard deviation.

Standard deviation=\sqrt{46875}=216.50

4 0
3 years ago
Read 2 more answers
Please help I am stuck. Would you also please explain on how to solve?
Bezzdna [24]

Answer:

<D is correct its confusing on the solving but

Step-by-step explanation:

4 0
3 years ago
A rule of thumb for estimating the size of a crowd is that 2 people take up
Leno4ka [110]

Answer:

120 people

Step-by-step explanation:

Length of dance floor = 30 ft

Width of dance floor = 20 ft

Given that 2 people will occupy 5 ft² of space, the number of people that will crowd the floor of the dance floor is calculated as follows:

= Area of dance floor ÷ 5 ft²

= (30*20) ÷ 5

= 600 ÷ 5

= 120.

120 people will crowd the dance floor.

8 0
3 years ago
12/21 in its simplest form
UNO [17]
12/21 in its simplest form is 4/7.

To find this out we need to divide the numerator and denominator by the GCF of 12 and 21 which is 3.

12/21

12 ÷ 3 = 4
21 ÷ 3 = 7
4/7

12/21 in its simplest form is 4/7.

12/21 = 4/7
5 0
3 years ago
Read 2 more answers
PLEASE ANSWER WITH SOLUTIONS. THX! I NEED IT ASAP!!
Diano4ka-milaya [45]
I think the first one might be 18 second might be 10
4 0
3 years ago
Other questions:
  • 1. Find f '(−4), if f(x) = (5x2 + 6x)(3x2 + 7). Round your answer to the nearest integer. Use the hyphen symbol, -, for negative
    10·1 answer
  • A(b-c)=d solve for c
    15·1 answer
  • Solve for f - <br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bf%7D%7B5%7D%20%3D%20-8" id="TexFormula1" title="\frac{f}{5} = -8"
    11·2 answers
  • Is -6.7 an integers PLEASE answer fast
    6·2 answers
  • HELLPP MEE PLEAASSEEE!!????
    5·2 answers
  • Convert the units of capacity. 1gal 1qt 2cups to fl oz.
    10·1 answer
  • I have a test tmrw pls help
    9·2 answers
  • What is 2x 3 -7x^{3}−7x 3
    7·1 answer
  • Lucy can make a pair of shorts for her daughter out of 5/8 yard of fabric. If she has 5/2 yards of fabric, how many pairs of sho
    12·1 answer
  • Im realy in need of your help please help me solve this math problem.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!