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
son4ous [18]
3 years ago
5

Help please been stuck on this

Mathematics
1 answer:
schepotkina [342]3 years ago
3 0

Step-by-step explanation:

The rules for significant digits are:

  • Non-zero digits are always significant.
  • Zeros between significant digits are also significant.
  • Trailing zeros are significant only after a decimal point.

To round each number to one digit, round to the first digit.

a) 300,000

b) £200

c) 20,000 km

You might be interested in
My brother is in 6th grade and needs help with his math. I tried to help but I can't find any answers on it.
In-s [12.5K]

Answer:

Question 1) 17.4

Question 2) 1.7

Question 3) 2.8

Question 4) 8.6

Step-by-step explanation:

Mean absolute deviation is the average distance between the data points from the set to the mean point of the data set. It shows the variability in data or how much the data points are spread.

method to calculate Mean absolute deviation:

a. calculate mean

b. calculate absolute deviation of each data point

c. add all the deviations

d. divide absolute deviation by number of points

mean absolute deviation = ∑lx_{i}-xl / n

The given problem has four sub-parts

Solution 1:

Mean= (78+99+90+80+55+56+102+88+60+42)/10

            =  750/10

            =  75

Mean absolute deviation= ( I 78-75 I + I 99-75 I+I 90-75 I + I 80-75 I +

                                             I 55-75 I + I 56-75 I + I 102-75 I + I 88- 75 I +

                                             I 60-75 I + I 42-75 I) /10

         =  (174)/10

        =  17.4

Solution 2:

Mean = (10+13+7+12+9+8+12+10+11+13)/10

              =  (105)/10

              = 10.5

Mean absolute deviation = ( I 10-10.5 I + I 13-10.5 I + I 7-10.5 I + I 12-10.5 I +

                                              I 9-10.5 I + I 8-10.5 I + I 12-10.5 I + I 10-10.5 I +

                                               I 11-10.5 I + I 3-10.5 I) /10

       =   17/10

       = 1.7

Solution 3:

Mean= (1+7+10+5+3+3+6+12+9+4)/10

            =  60/10

            =  6

Mean absolute deviation  = ( I 1-6 I + I 7-6 I + I 10-6 I + I 5-6 I + I 3-6 I +

                                               I 3-6 I + I 6-6 I + I 12- 6 I + I 9-6 I + I 4-6 I) /10

         = (28)/10

        =  2.8

Solution 4:

Mean= (30+46+25+45+18+25+15+32+40+24)/10

            =  300/10

            =  30

Mean absolute deviation  = ( I 30-30 I + I 46-30 I + I 25-30 I + I 45-30 I +

                                               I 18-30 I + I 25-30 I + I 15-30 I + I 32-30 I +

                                               I 40-30 I + I 24-30 I) /10

         = (86)/10

        =  8.6

!

8 0
3 years ago
What is the length of the third side of the window frame below?
alexdok [17]

Answer:

The answer is, D. 20 inches

hope this helps :)

3 0
3 years ago
Read 2 more answers
Question 5
geniusboy [140]

Answer:

\frac{4}{9}

Step-by-step explanation:

To find this probability, we have to know:

  • How many numbers are there in between 5 and 8 inclusive?
  • How many total numbers are there?

We simply divide the first answer by the second one and get our probability.

So, the numbers are 5,6,7,8 ----- that is 4 numbers

How many numbers are there in total?  That is:

0, 1, 2, 3, 4, 5, 6, 7, 8, or 9  ------- 9 numbers

Thus, the probability is 4/9

7 0
3 years ago
A 9.3 m<br> b. 13.3 m<br> C. 18 m<br> d. 21 m<br><br> Which answer is it
Novosadov [1.4K]

Answer:

I would say A

Step-by-step explanation:

hmu if you need more help

7 0
3 years ago
What information is necessary to prove the triangles congruent by SAS? ​
Ber [7]

Answer:

SAS requires two congruent sides and the included angle be also congruent

Given is the picture are congruent triangles

<u>ΔACB ≅ ΔECD, because:</u>

  • AC ≅ EC, given
  • BC ≅ DC, given
  • ∠ACB ≅ ∠ECD, vertical angles
5 0
2 years ago
Read 2 more answers
Other questions:
  • The length of a rectangle is 7 centimeters greater than the width. If 4 centimeters are added to both the length and the width,
    7·1 answer
  • Solve: 3 ln x = ln 216
    10·2 answers
  • What is the approximate longitude and latitude of Libya in Africa??
    15·1 answer
  • If two dice are rolled one time, find the probability of getting: a sum grater than 10\
    11·1 answer
  • -1/2x=-10<br><img src="https://tex.z-dn.net/?f=%20-%201%20%5Cdiv%202x%20%3D%20%20-%2010%20" id="TexFormula1" title=" - 1 \div 2x
    14·2 answers
  • Evaluate the response...
    13·2 answers
  • Which statement best describes f(x)=-2√x-7+1
    8·1 answer
  • Pleaseeeeee help with this question and explain it out pleaseeeee
    15·1 answer
  • Josef has 35 square feet of tiles. He cuts 15 of those tiles in half. How many square feet of tiles does Josef have now? Explain
    6·2 answers
  • A bus can travel 186 miles in 5 hours. How many miles can the bus travel in 1 hour?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!