Answer:
16π m2
Step-by-step explanation:
The area of a sector (A) is given by:

Where
is the angle of the sector
r is the radius of the circle
<em>We can see that the angle of the sector is 90, and the radius of the circle is 8. Plugging these into the formula, we get:</em>

The area is 16π m2
The correct answer is 2x^3
Hope this helped :)
Answer:
I know you could easily solve this just looking at it.
But if you want the algebraic solution:
x + x^2 = 30
x^2 + x -30 = 0
a = 1
b = 1
c = -30
Using the quadratic formula:
x = [ -b +- sqr root (b^2 - 4ac) ] / 2a
x = [-1 +- sqr root (1 - 4 * 1 -30) ] / 2*1
x = [-1 +- sqr root (1 + 120) ] / 2
x = -1 +- sqr root (121) / 2
x1 = (-1 + 11) / 2 = 10 / 2 = 5
x2 = (-1 -11) / 2 = -12 / 2 = -6
Answers are 5 and -6
5 + 5^2 = 30
-6 + (-6)^2 = 30
-6 +36 = 30
Step-by-step explanation:
Answer: 0.1699
Step-by-step explanation:
Given: The proportion of all workers employed by the university belong to the workers' union = 0.96
Sample size : n= 5
Binomial probability distribution formula :

The probability that exactly 4 of the workers interviewed are union members :-

Required probability = 0.1699