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
nadya68 [22]
3 years ago
8

assume you are given the following measurements. 12 cm, 143 m , 398 km, 778 mm evaluate the sum of these measurements to the cor

rect number of significant digits.
Mathematics
1 answer:
Sati [7]3 years ago
4 0
Well it all depends what measurement your answer has to be in.

Answer in cm-
12cm stays the same
143m becomes 14,300cm
398km becomes 39,800,000cm
778mm becomes 77.8cm
Then you add them together
12+14,300+39,800,000+77.8=39,814,398.8
The answer stays the same cause it already has the right amount of sig figs so it's 39,814,398.8cm

Answer in m-
12cm becomes 0.12m
143m stays the same
398km becomes 398,000m
778mm becomes 0.778m
Then you add them together
0.12+143+398,000+0.778=398,143.898
But then you have to round to the right amount of sig figs which would be to have two numbers after the decimal point so the answer would then be 398,143.90m

Answer in km-
12cm becomes 0.00012km
143m becomes 0.143km
398km stays the same
778mm becomes 0.000778
Then you add them together
0.00012+0.143+398+0.000778=398.143898km
But then you have to round to the right amount of sig figs which would be to have three numbers after the decimal point so the answer would then be 398.144km

Answer in mm-
12cm becomes 120mm
143m becomes 143,000mm
398km becomes 398,000,000mm
778mm stays the same
Then you add them together
120+143,000+398,000,000+778=398,143,898
The answer stays the same cause it already has the right amount of sig figs so it's 398,143,898mm
You might be interested in
FIND AREA OF SHADED SEGMENT. WILL GIVE BRAINLIEST FOR CORRECT ANSWER
Xelga [282]
By geometry,
area \: of \: shaded \: region \:  =  (\: area \: of  \: square \:  -  \: 2 \times (area \: of \: semi - circles)) \div 2
=  ({l}^{2}  - 2 \times \pi  \times {r}^{2} ) \div 2
l = 6 \\ r = l \div 2 = 3
= (36 - \pi \times  {3}^{2} ) \div 2
= 3.86
area of shaded region = 3.9
3 0
3 years ago
Read 2 more answers
In 1995, Derek Jeter's batting average was 0.250; in 1996, his batting average was 0.314. David Justice's batting average in 199
belka [17]

Answer:

The correct option is;

Simpson Paradox

Step-by-step explanation:

The phenomenon whereby particular trends are prevalent in small data portions but are not evident or an inverse trend is observe when the portions are joined together is known as Simpson's paradox.

Whereby the data for calculating the bating averages as found online are given as follows;

Season,                       Derek Jeter                           David Justice

1995,                           12/48 = 0.250                         104/411 ≈ 0.253

1996,                           183/582 ≈ 0.314                      45/140 ≈ 0.321

The overall hits to the overall bats ratio are;

,         (183 + 12)/(582 + 48) ≈0.310   (104+45)/(411+140) = 0.27

Which shows that  Derek Jeter's overall average was better than Justice's average  

7 0
3 years ago
A certain forest covers an area of 4800 km^2 . Suppose that each year this area decreases by 5.25% . What will the area be after
9966 [12]

Answer:

the area after 6 years is  3,473 km^2

Step-by-step explanation:

The computation of the area after 6 years is as follows:

= Area × (1 - decreased percentage)^number of years

= 4,800 km^2 × (1 - 5.25%)^6

= 4,800 km^2 × 0.9475^6

= 3,473 km^2

Hence, the area after 6 years is  3,473 km^2

5 0
2 years ago
ABC with exterior angle 4 is given _____ = 180 degrees becaused the angles for a linear pair. This can be written as M angle 4 =
Ymorist [56]

Answer:

the first time I saw the girls in the us was the day I think of it is the most

Step-by-step explanation:

I am a good man and a great man and a great wife but she doesn't have a good relationship but I am a good job and I am not the right one to be a good job and I had to do that for the first one and then we got you a new phone and I am sorry for bothering her to keep you from the situation I have a problem and you are not going talk about this and that you have to be careful about to leave your house in a bad way back then and you can do you better than you do that you don't have a relationship

3 0
2 years ago
The function f(t) = t2 + 6t − 20 represents a parabola.
Novay_Z [31]
Part A: f(t) = t² + 6t - 20
              u = t² + 6t - 20
         + 20            + 20
      u + 20 = t² + 6t
u + 20 + 9 = t² + 6t + 9
      u + 29 = t² + 3t + 3t + 9
      u + 29 = t(t) + t(3) + 3(t) + 3(3)
      u + 29 = t(t + 3) + 3(t + 3)
      u + 29 = (t + 3)(t + 3)
      u + 29 = (t + 3)²
          - 29       - 29
              u = (t + 3)² - 29

Part B: The vertex is (-3, -29). The graph shows that it is a minimum because it shows that there is a positive sign before the x²-term, making the parabola open up and has a minimum vertex of (-3, -29).
------------------------------------------------------------------------------------------------------------------
Part A: g(t) = 48.8t + 28           h(t) = -16t² + 90t + 50
            | t |   g(t)  |                          |  t  |  h(t)  |
            |-4|-167.2|                          | -4 | -566 |
            |-3|-118.4|                          | -3 | -364 |
            |-2| -69.6 |                          | -2 | -194 |
            |-1| -20.8 |                          | -1 |  -56  |
            |0 |   -28  |                          |  0  |   50  |
            |1 |  76.8 |                          |  1  |  124 |
            |2 | 125.6|                          |  2  | 166  |
            |3 | 174.4|                          |  3  | 176  |
            |4 | 223.2|                          |  4  | 154  |
The two seconds that the solution of g(t) and h(t) is located is between -1 and 4 seconds because it shows that they have two solutions, making it between -1 and 4 seconds.

Part B: The solution from Part A means that you have to find two solutions in order to know where the solutions of the two functions are located at.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which phrase should be inserted on the line to make a true statement? Use the models to help.
    12·2 answers
  • Is 1044 2 3 5 6 9 10
    6·1 answer
  • Can you help me this the workings and the answer?<br> Thanks a bunch!!
    8·1 answer
  • Which statements are true based on the diagram? Select three options.
    12·1 answer
  • Charlize and camille solved the equation 4x-2y=8 for y
    11·2 answers
  • What is this solution 20x+30y=1000 when 20 is y intercept and 30 is x intercept
    5·1 answer
  • 16. How many hundreds are there in a Crore? Write it.​
    9·2 answers
  • Enter the first four terms.
    14·1 answer
  • What is the sum of 3 - 2i and -5 + 6i?
    15·1 answer
  • Cars A, B, and C are travelling at constant speeds. Select the car that travels the fastest. Choose 1 answer: Choose 1 answer: (
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!