we are given
A cd has diameter of 120 millimeters
so, d=120mm
so, firstly, we will find radius
we can plug it
we know that
1mm=0.001m
so, we get
the angular speed is about 206 rpm
we know that
1 revolution =2pi radians
so, we get
now, we can change it into seconds
1 min =60 seconds
so, we get
now, we can find linear speed(v)
we can use formula
v=w*r
so, we can plug values
and we get
so, linear speed is 1.257 m/sec............Answer
Set the width to be x. Thus, the length is 4x.
The perimeter is 2(x+4x)=100, so x=10.
Plugging in x=10, you get that 4x=40.
So, the area of the rectangle is 400 .
Because there are 100 centimeters in a meter and you are asking for area, you must multiply by to get 4000000 .
Answer: E
Step-by-step explanation:
To cancel out the Y you need to have both multiplied by each other
so the first equation get multiplied by 7 and the second one by 4
28y + -28y = 0 they cancel out
Hello from MrBillDoesMath!
Answer:
r = = 57.6 (approximately)
Discussion:
Given: circumference of circle O = 362.14
The circumference of a circle of radius r, is given by the formula C = 2 *PI *2.
So we need to find the value of r in
2*Pi*r = 362.14
Divide both sides by 2*PI to get
r = (362.14)/ (2 * Pi) = (362.14)/ 6.283 (approximately)
= 57.6 (approximately)
Thank you,
MrB
Answer:
55.5F
Step-by-step explanation:
y = mx + b
m = slope = -3.5/1000
distance = x = 1000
b = temperature at x = 0 = 59F according to https://www.universalweather.com/blog/international-standard-atmosphere-how-it-affects-flight-understanding-the-basics/
temperature = y = ?
y = -.0035(1000) + 59
y = 55.5