X^2 - 80 = 0
x^2 = 80 ...take the square root of both sides, eliminating the ^2
x = (+-) sqrt 80
x = (+-) sqrt 16 * 5
x = (+-) 4 sqrt 5
so x = 4 sqrt 5 or x = -4 sqrt 5
Answer:
19219.48
Step-by-step explanation:
16540x0.162+16540
Answer, (6x + 11) (x - 5)
Answer:
(a) Not mutually exclusive
(b)80%
Step-by-step explanation:
Mutually Exclusive events are events which cannot occur at the same time. An example is walking forward and backward. When events are presented using Venn diagram, if the sets are disjoint, they are mutually exclusive, otherwise they are not.
(a)The given events "burger" and "fries" are not mutually exclusive since their intersection is not empty as can be seen from the attached Venn diagram.
(b) Probability that a randomly selected person from this sample bought a burger OR bought fries.
P(A or B)=
<u>Answer</u>
Part 1:
Total number of liters of orange juice = 0.8x
Total number of liters of water = 0.2x
Part 2: The variable x represent the amount of full capacity of the container.
<u>Explanation</u>
Let x be the volume of the container.
Total number of orange juice = 80% of x
= 80/100 × x
= 0.8 × x
= 0.8x liters
If 80% of the container has orange juice the water will be =(100 - 80)%
= 20%
The total number of liters of water = 20% of x
= 20/100 × x
= 0.2 × x
= 0.2x liters.
X ⇒The variable represent the total volume of the container. That is the full capacity of the container.