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DiKsa [7]
3 years ago
6

Nathan and Jordan design surveys to determine the average amount of time bicyclists in a race spend training each

Mathematics
2 answers:
sp2606 [1]3 years ago
8 0

Answer:

A

Step-by-step explanation:

Bad White [126]3 years ago
3 0

Answer: Nathan's because his sample was more random

Step-by-step explanation:

Nathan's survey could be described as a Systematic random sampling technique whereby every 5th observation taken as a sample from the population. With these technique we have a more random observation than with

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For positive acute angles A and B, it is known that sin A=35/57 and cos B=5/13
Liula [17]

Step-by-step explanation:

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4 0
3 years ago
The first row of a theater has 16 seats. There are 3 more seats in each row thereafter. How many seats are in the 25th row/
inessss [21]

Answer: 88

Step-by-step explanation:

Given

The first row has 16 seats

then there are 3 more seats in each row

this follows an AP with the first term a=16 and common difference d=3

So, no of seats in the 25 th row is

\Rightarrow a_{25}=a+24d\\\Rightarrow a_{25}=16+3\times 24\\\Rightarrow a_{25}=88

Thus, there are 88 seats in the 25 th row

8 0
3 years ago
The school hiking club has completed 4 out of 5 hikes so far this year. They have hiked 4.6 miles, 3.7 miles, 5.1 miles, and 2.9
egoroff_w [7]

Answer:

B

Step-by-step explanation: just add up all of the miles they have all ready hiked and then subtract it from the number they need to hike

6 0
3 years ago
A parabola y=1/2x^2-4x+21 can you help me find the vertex form of this parabola please and thank you :)
ale4655 [162]
Ok 
First factor out the first 2 terms as follows:-

y  = 1/2(x^2 - 8x) + 21

Now complete the square on x^2 - 8x:-

y = 1/2[ (x - 4)^2 - 16] + 21

y = 1/2(x - 4)^2 - 8 + 21

y = 1/2(x - 4)^2 + 13   Answer


3 0
3 years ago
Pls help i don’t know how to simplify lol
Korolek [52]

Answer:

the first one is 5/12 and the second one is 6/28. Hope this helps and have a nice day:)

5 0
3 years ago
Read 2 more answers
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