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
elena55 [62]
3 years ago
9

Edward wants to determine which skateboarder won a race. The actual time taken by four skateboarders to skate the same distance

is shown below:
Skateboarder A B C D
Time (in seconds) 4.28 4.24 4.26 4.25


If the stopwatch can measure to the nearest tenth of a second, which skateboarder will show as having a different time from the others?
Skateboarder A
Skateboarder B
Skateboarder C
Skateboarder D
Mathematics
2 answers:
iogann1982 [59]3 years ago
7 0
Skateboarder B. 4.24 will show as a different time since the stopwatch rounds to the nearest tenth and to round up it has to be 0.5+ and to round down you need 0.4 or below and in this case Skateboarder B. has a time of 4.24 thus it has a different time than the other times.

I Hope this helped you!
Vlad1618 [11]3 years ago
6 0

Answer:

skateboarder B

Step-by-step explanation:

Actual time taken by skateboards to skate are

4.28, 4.24, 4.26, 4.25 seconds.

If the stopwatch can measure to the nearest tenth of a second then the actual times will be recorded as

(A) 4.28 ≈ 4.3

(C) 4.26 ≈ 4.3

(D) 4.25 ≈ 4.3

(B) 4.24 ≈ 4.2

So skateboarder B will have different time from the others.

You might be interested in
it takes 4 cups of suger to bake a cake and 2 cups of suger to make a tray of cookies. Mary has a total of 15 cups of sugar to b
Stolb23 [73]
She can make two cakes and 3 trays of cookies 
7 0
3 years ago
Help will name brainliest!
ANTONII [103]

Answer:

43

Step-by-step explanation:

7*3+22

8 0
2 years ago
Read 2 more answers
Evaluate the expression if a=2,b=-3,C=-1, and D=4<br><br><br> -2(b^2-5c)
Alenkasestr [34]

\qquad \qquad  \bf \huge\star \:  \:  \large{  \underline{Answer} }  \huge \:  \: \star

  • Equivalent value = -28

\textsf{  \underline{\underline{Steps to solve the problem} }:}

\qquad❖ \:  \sf \: - 2( {b}^{2}  - 5c)

( put the values )

\qquad❖ \:  \sf \: - 2 \{( - 3) {}^{2}  - 5( - 1) \}

\qquad❖ \:  \sf \: - 2(9 -  (- 5))

\qquad❖ \:  \sf \: - 2(9 + 5)

\qquad❖ \:  \sf \: - 2 \times 14

\qquad❖ \:  \sf \: - 28

\qquad \large \sf {Conclusion}  :

  • -2(b² - 5c) = -28

7 0
1 year ago
Need a quick answer please
Zanzabum

Answer:

8 fits the equation

Step-by-step explanation:

hope this helps

4 0
3 years ago
Would appreciate some help with this:<br><br> Verify (sinq+cosq)^2 - 1 = sin2q
Phantasy [73]

Hello from MrBillDoesMath!

Answer:

See Discussion below

Discussion:

(sinq + cosq)^2 =                                     => (a +b)^2 = a^2 + 2ab + b^2

(sinq)^2 + (cosq)^2 + 2 sinq* cosq        => as (sinx)^2 + (cosx)^2 = 1

1 + 2 sinq*cosq              (*)


Setting a = b = q in the trig identity:

sin(a+b) = sina*cosb + cosa*sinb                      

sin(2q) =                      (**)

sinq*cosq + cosq*sinq      => as both terms are identical

2 sinq*cosq


Combining (*) and (**)

(sinq + cosq)^2 = 1 + 2sinq*cosq     => (**) 2sinq*cosq =  sqin(2q)

                          = 1 +  sin(2q)

Hence

(sinq + cosq)^2  = 1 +  sin(2q)            => subtracting 1 from both sides

(sinq + cosq)^2  - 1 =   sin(2q)  

The last statement is what we are trying to prove.



Thank you,

MrB

7 0
3 years ago
Other questions:
  • Noreen made 8 and 2/3 cups of snack mix for a party. Her uest ate 3/4 of the mix. How much snack mix did her guest eat?
    12·1 answer
  • 2.5_2.05 answer plz help
    6·2 answers
  • Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x – 10? Sel
    6·2 answers
  • During Christmas a book store sold 30 books. If the ratio of books go bookmarks sold was 10:1 ,how many bookmarks did the store
    10·1 answer
  • A credit card company calculates its minimum monthly payment as 4% of the credit card balance or $30, whichever is greater. If E
    7·1 answer
  • I don’t understand this question
    13·2 answers
  • A circle is centered on point B. Points A, C and D lie on its circumference.
    10·2 answers
  • HELP PLEASE QUICK!!!!!
    11·1 answer
  • Please someone tell me the answer of these questions
    6·1 answer
  • The Ragnier's purchased a house for $357,000. They sold their home for $475,000. What was the percent increase?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!