Answer:
29/45(64.4%)
Step-by-step explanation:
You need to add the fractions. The LCM is 45 so make the denominator of both fractions 45.
(4/9)5= 20/ 45
(1/5)9= 9/ 45
20/45 + 9/45 = 29/45(64.4%)
Just divide 3 by 12 so it goes in
times which simplifies to
time. Hope this helped :)
Answer:
the next two numbers will be 13, then 21
Step-by-step explanation:
the next number is the sum of the last two numbers.
1 + 1 = 2
2 + 3 = 5
etc etc
the next two numbers will be 13, then 21
6:15 to 7:45 is 1 hour and 30 minutes.
Dividing 1 hour and 30 minutes by 15 minute intervals equals 6
They rang the bell 6 times
Answer:
y=4sin(2x) - 3
Step-by-step explanation:
Recall the form of a sinusoidal function is Asin(Bx + C) + D, where A is the amplitude, B is the frequency (could also be viewed as the period), C is the horizontal (phase) shift, and D is the vertical shift. Also, recall sin(x) has a period of 2π.
You start with the parent function (sin(x)).
Then, knowing the amplitude is 4: 4sin(Bx + C) + D
Then, knowing the period of the regular sine function is 2π, to get to a period of π, divide by 2 (the period of the curve changes by a factor of 1/2), so your B coefficient is 2: 4sin(2x + C) + D
There is no phase shift, so omit C: 4sin(2x) + D
Since the midline is y = -3, that is your vertical shift (D): 4sin(2x) - 3
Graph of y = 4sin(2x) - 3 is below: