11.90 rounds up to 12, which is the nearest integer.
5.49 rounds down to 5.
7.09 rounds down to 7.
8.5 rounds up to 9.
-2.2 rounds down to -2.
Answer:
h(x) = (x +1.5)^2 -20.25
Step-by-step explanation:
We assume you want to rearrange h(x)= x^2 +3x -18.
Recognize the coefficient of x is 3. Add and subtract the square of half that. (3/2)^2 = 9/4 = 2.25
h(x) = (x^2 +3x +2.25) -18 -2.25
Now, write the expression in parentheses as a square, simplify the constant.
h(x) = (x +1.5)^2 -20.25 . . . . . . . . vertex form
Answer:
The frequency of the note a perfect fifth below C4 is;
B- 174.42 Hz
Step-by-step explanation:
Here we note that to get the "perfect fifth" of a musical note we have to play a not that is either 1.5 above or 1.5 below the note to which we reference. Therefore to get the frequency of the note a perfect fifth below C4 which is about 261.63 Hz, we have
1.5 × Frequency of note Y = Frequency of C4
1.5 × Y = 261.63
Therefore, Y = 261.63/1.5 = 174.42 Hz.
Answer:
7/10
Step-by-step explanation:
The students at Desert Springs middle school thinks 70% of the teachers care about them.
The fraction of the teachers that the students think cares about them is given as:
70%
= 70/100
= 7/10
Therefore, the fraction of the teachers that the students think cares about them is 7/10
