Answer:
15 points
Step-by-step explanation:
Divide the 75 points by the five days to find the average points lost per day.
75 points / 5 days = 15 points per day
Answer:
13
Step-by-step explanation:
Law of Cosine - a^2 = 9^2 + 17^2 -2(17)(9)(cos 49)
(put your calculator in DEGREE MODE)
Answer:
0.5396
Step-by-step explanation:
![\textrm{log}_{10}\sqrt[4]{144}=\frac{1}{4}\textrm{log}_{10}144=\frac{2.1584}{4}=0.5396](https://tex.z-dn.net/?f=%5Ctextrm%7Blog%7D_%7B10%7D%5Csqrt%5B4%5D%7B144%7D%3D%5Cfrac%7B1%7D%7B4%7D%5Ctextrm%7Blog%7D_%7B10%7D144%3D%5Cfrac%7B2.1584%7D%7B4%7D%3D0.5396)
Answer:
B
Step-by-step explanation:
Given a sinusoidal function in the form f(x) = A Sin (Bx + C), we can say that:
A is the amplitude (if A is negative, the Amplitude is still the positive)
Period is ![\frac{2\pi}{B}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Cpi%7D%7BB%7D)
To get phase shift, we set Bx + C = 0 and solve for x.
Now, the function given is f(t) = -5 Sin (7t -1)
Hence, amplitude is 5
period is ![\frac{2\pi}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5Cpi%7D%7B7%7D)
and, phase shift is:
7t - 1 = 0
7t = 1
t = 1/7
Answer choice B is right.
It would take Joanna 6 weeks