Sec x = 1/Cosx
Pi radians = 180 degress
Pi/12 = 180/12 = 15 degrees.
Sec15° = 1/Cos15°
Sec pi/12 = Sec 15° = 1/Cos 15°
Cos 15° = 0.9659 using a calculator.
Sec pi/12 = Sec 15° = 1/Cos 15° = 1/0.9659 = 1.0353
Sec Pi/12 = 1.0353
Answer:2
Step-by-step explanation:
Because Lilah runs 105 m in 35 s, her average velocity is
(105 m)/(35 s) = 3 m.s
In terms of distance versus time, the equation that models the velocity is
m = 3s
where
m = distance, m
s = time,s
If we create a table of distance versus time, it should look like this:
t (s) s (m)
---- ------
1 3
5 15
10 30
The answer choices given are
a. m = 3s
b. m = 35s
c. s = 3m
d. s = 35m
where m = distance, meters
s = time, s
Answer:
Choice a. agrees with our model, and it is the correct choice.
That is,
s: 1 5 10
m: 3 15 30
Standard form is x + y = number
The equation has a slope of 3 and a y intercept of -4 so the equation should be
y = 3x - 4
To get this in standard form you have to move the 3x to the other side.
y - 3x = -4
-3x + y = -4
The coefficient before x cannot be negative in standard form so you have to multiply the whole equation by -1.
3x - y = 4