Answer:a squared-b squared
Step-by-step explanation:
Answer:
C. 
Step-by-step explanation:
Given: Six cards numbered from 
to 
are placed in an empty bowl. First one card is drawn and then put back into the bowl then a second card is drawn.
To Find: If the cards are drawn at random and if the sum of the numbers on the cards is 
, what is the probability that one of the two cards drawn is numbered 
.
Solution:
Sample space for sum of cards when two cards are drawn at random is 
total number of possible cases 
Sample space when sum of cards is is 
Total number of possible cases 
Sample space when one of the cards is is 
Total number of possible cases 
Let A be the event that sum of cards is
Let B be the event when one of the two cards is
probability than one of two cards is when sum of cards is
Now,
probability that sum of cards is and one of cards is
if sum of cards is then probability that one of the cards is is , option C is correct.
Answer:
The volume of the concentrated 80 gallons mixture is 20 gallons
The volume of water in the 80 gallons mixture is 60 gallons
Step-by-step explanation:
The given parameters are;
The content of Container A = The cleaner
The concentration of the cleaner = 20% solution
The content of Container B = Pure water
The concentration of the desired solution = 5%
The volume of the required solution = 80 gallons
Let x represent the volume of the concentrated solution and y represent the volume of water in the 80 gallons mixture
Therefore, we have;
20/100 × x + y×0 = 5/100×80
x + y = 80
y = 80 - x
20/100 × x + (80 - x)×0 = 5/100×80
0.2·x = 4
x = 4/0.2 = 20
x = 20 gallons
y = 80 - x = 80 - 20 = 60
y = 60 gallons
The volume of the concentrated solution (80 gallons mixture) = x = 20 gallons
The volume of water in the 80 gallons mixture = y = 60 gallons.
Answer:
B. 135
Step-by-step explanation:
According to corresponding angles answer is b
135 is congruent to angle 1 and angle 1 is congruent to angle 5
so if angle 1 is 135 then angle 5 is 135
Brainliest please
Hope this helps
I believe that X would be -2.47619.
First you distribute the -1 in front of the parenthesis. Then distribute the 8 outside of the bracts. And finally just solve for X by combing like terms.
