Answer:
25 males and 8 females.
Step-by-step explanation:
If x is the number of males and y = number of females we have the system:
x + y = 33
x - y = 17 Adding:
2x = 50
x = 25
so y = 33 - 25 = 8.
Answer:
46th term is 36.
Step-by-step explanation:
we need to subtract like this..
251-5=246,246-5=241.likewise the 46th term is 36
Answer:
B is the correct answer
Step-by-step explanation:
The mean of the data set is 42.
<h3>What is Mean?</h3>
The arithmetic mean is found by adding the numbers and dividing the sum by the number of numbers in the list.
Given:
20, 32, 34, 36, 40, 42, 44, 48, 55, 65
Mean = 20+32+ 34+ 36+ 40+ 42+ 44+ 48+ 55+ 65/10
Mean = 416 / 10
Mean = 41.6
Mean = 42
Learn more about mean here:
brainly.com/question/26999829
#SPJ1
Answer:
Answer:
safe speed for the larger radius track u= √2 v
Explanation:
The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.
Also given that r_1= smaller radius
r_2= larger radius curve
r_2= 2r_1..............i
let u be the speed of larger radius curve
now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F=
r
1
mv
2
=
r
2
mu
2
................ii
form i and ii we can write
v^2= \frac{1}{2} u^2v
2
=
2
1
u
2
⇒u= √2 v
therefore, safe speed for the larger radius track u= √2 v
