The first thing we should know is the value of each currency:
nickels = 0.05 $
dimes = 0.1 $
Let
x: number of nickels
y: number of dimes
We write the system of equations:
0.05x + 0.1y = 6.30
x + y = 100
To find the solution, you can graph both lines. The intersection between both lines is the number of nickels and dimes.
answer
Graph both lines in the same Cartesian plane and see where they intersect.
19. The balloon hits the ground means -16t2+25t+3=0
After you solve the equation, there are 2 solution ~1.67 or ~-0.11 (the time can not be negative) so the solution is 1.67s
20.substitute t=1 to the function -16(1)2+25(1)+3=-16+25+3=12 ft. So the height is 12ft when t=1
Answer:
The probability is: 0.8889.
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Approved
Event B: Qualified
Probability of a person being approved:
80% of 75%(qualified)
30% of 25%(not qualified). So
Probability of a person being approved and being qualified:
80% of 75%, so:
Find the probability that a person is qualified if he or she was approved by the manager.
The probability is: 0.8889.
I believe it would be cot(B). if I'm not correct I'm sorry!!
Answer:
its d, because there is no hypotenus in equiateral but there hypotenues in right triangle
Step-by-step explanation:
