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galben [10]
2 years ago
13

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:
ohaa [14]2 years ago
8 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.

Leno4ka [110]2 years ago
3 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!
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How does the Binomial Theorem’s use Pascal’s triangle to expand binomials raised to positive integer powers?
MrMuchimi

Answer:

There are  ways for quickly multiply out a binomial that's being raised by an exponent. Like

(a + b)0 = 1

(a + b)1 = a + b

(a + b)2 = a2 + 2ab + b2

(a + b)3 = (a + b)(a + b)2 = (a + b)(a2 + 2ab + b2) = a3 + 3a2b + 3ab2 + b3

and so on and so on

but there was this mathematician named Blaise Pascal and he found a numerical pattern, called Pascal's Triangle, for quickly expanding a binomial like the ones from earlier. It looks like this

1                           1      

2                   1     2     1

3                1     3     3   1

4           1     4     6     4     1

5       1     5     10     10     5     1

Pascal's Triangle gives us the coefficients for an expanded binomial of the form (a + b)n, where n is the row of the triangle.

Hope this helps!

5 0
2 years ago
You want to buy a pet rabbit that costs ​$49. You already have ​$18 and you plan to save ​$9 per week. If w represents the numbe
kap26 [50]

18 + 9x = 49

with the use of an equation you can easily find out if 6 weeks of saving up is enough to get the rabbit.

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you could have enough money in 4 weeks

8 0
2 years ago
Myra uses an inverse variation function to model the data for the ordered pairs below. (2, 30), (3, 20), (4, 15), (5, 12), (6, 1
tino4ka555 [31]
"Note how for each (x,y) pair of points given we see that x*y = 60 
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4 0
2 years ago
Read 2 more answers
Determine the standard form of the equation for the circle with center (h,k) = (-5 ½) and radius r =1
wariber [46]
Asuuing yo meant (h,k)=(-5,1/2)

equation is (x-h)^2+(y-k)^2=r^2
(h,k) is center and r=radious
given that (h,k)=(-5,1/2) and r=1
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if you wanted us to expand
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8 0
3 years ago
Please anyone help
serg [7]
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7 0
2 years ago
Read 2 more answers
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