for an expression or relation to be a function, it must not have any x-coordinate values repeated, let's check this one
The answers is A because it shows the domain: 0 is less than or equal to x and less that on equal to 60
Answer:
D
Step-by-step explanation:
Suppose she only fills her big pots. The number of big pots filled is 120÷12=10. So the y-intercept is (0,10).
Now suppose she only fills her small pots. The number of small pots filled is 120÷5=24. So the x-intercept is (24,0)
The perimeter will be the perimeter of the real thing divided by 1.2 .
The area will be the area of the real thing divided by (1.2)² .
Answer:
12
Step-by-step explanation:
A 2 - sided counter ; (red, yellow)
A spinner (1,2,3,4,5,6)
Number of trials = 80
P(red and number > 3) :
P(red) = 1/2 ;
P(number >3) : numbers greater Than 3 = (4, 5, 6)
Hence, P(number <3) = 3 /6 = 1/2
Theoretical probability = 1/2 *1/2 = 1/4
Expected number of outcomes :
1/4 * number of trials
1/4 * 80 = 20
Experimental outcome :
Relative frequency = number of outcomes / number of trials
Relative frequency = 2/5
Hence,
2/5 = number of outcomes / 80
Cross multiply :
160 = number of outcomes * 5
Number of outcomes = 160 /5 = 32
Actual outcomes = 32
Difference between actual and expected :
32 - 20 = 12
