Answer:

Step-by-step explanation:
We have been given that an object oscillates 4 feet from its minimum height to its maximum height. The object is back at the maximum height every 3 seconds. We are asked to find the cosine function that can be used to model the height of the object.
We know that standard form of cosine function is
, where,
|A| = Amplitude,
Period =
,
C = Phase shift,
D = Vertical shift.
Since distance between maximum and minimum is 4, therefore, amplitude will be half of it, that is,
.
Since objects gets back to its maximum value in every 3 seconds, therefore, period of the function is 3 seconds. We know that period is given by
, therefore, we can write
, therefore,
.
We haven't been given any information about phase and mid-line, we can assume the values of C and D to be zero
.
Therefore, our function required function would be
.
19. v/2 = 2 1/30
Turn mixed number(s) to improper fraction(s).
v/2 = 61/30
Multiply both sides by 10.
v/2 × 10 = 61/30 × 10
Simplify.
5v = 61/3
Divide both sides by 5.
5v ÷ 5 = 61/3 ÷ 5
Simplify.
v = 61/15
61/15 or if you want it as a mixed fraction, it would be 4 1/15.
Answer:
82°
Step-by-step explanation:
m÷ BAD + m÷ BCD = 180°
98° + m÷BCD = 180°
m÷BCD = 180° - 98°= <u> </u><u>8</u><u>2</u>°
That would be 242 divided by the total number of people surveyed, or 242/1028.
Answer:
multiply 4x12 and leave it inside the parenthesis, then multiply the 3 with 48