Radius is 15 cm
Circumference = 2 pi r
C = 2 x 3.14 x 15cm
C = 94.2 cm
94.2 cm x 4 (revolutions) = 376.8 = D
Answer:
The second one (2) is a lie
Step-by-step explanation:
The quantities are all proportional, with 4 donuts costing one dollar being consistant. With this, we can multiply the amount of donuts to 40, and through what we know, we can find that the donuts will cost 10 dollars. This leaves only (2) left.
Answer:
x=-5 & y=-2
Step-by-step explanation:
y= 3x+13
y= x-3
x-3=3x+13
-3=2x+13
-10=2x
x=-5
then
y=3(-5)+13
y=-15+13
y=-2
Answer:
V(m)=320 (1.005).
Step-by-step explanation:
Answer:
0.82
Step-by-step explanation:
Given:
<em>A</em> be the event that an Internet user posts photos taken by themselves.
<em>B</em> be the event that an Internet user posts photos taken by themselves.
P(A) = 0.47
P(A) = 0.28
P(A or B) =
= 0.52
To find:
Conditional probability that an Internet user posts photos given that they post videos.
OR
P(A/B) = ?
Solution:
<em>Formula </em>to be used to find the required conditional probability:

For this,
is required.
<em>Formula</em>


Now, the required conditional probability is:

So, the answer is <em>0.82</em>.