
This happens whenever the terminal point of

lies in either the first or second quadrants.
Meanwhile,

since you already know sine is positive. Cosine is positive when the angle lies in the first or fourth quadrant.
Sine and cosine are both positive only when

is the first quadrant, which means this angle's terminal point lies in the first quadrant (A).
There's an infinite amount of numbers that round to 8.21 when rounded to the nearest hundredth, for example:
8.211
8.209
8.214
8.21145683204
etc...
Just pick whichever two numbers you like :)
Answer:
The value of Coefficients, Standard-error, t-Stat, P-value is given for sample of 10 trucks is given.
The correct regression line can be obtained by using the correct value of slope and intercept coefficient from the table.
Y
=
^
α
+
^
β
X
=>
1724.36
+
8.9
x
Hence, the correct option is option(b)
Step-by-step explanation:
Answer:
x=9,-1 and 
Explanation:
we have been given with the quadratic equation 
we compare the given quadratic equation with general quadratic equation
general quadratic is 
from given quadratic equation a=1,b= -8,c= -9
substituting these values in the formula for discriminant 

Now, to find the value of x
Formula is 
Now, substituting the values we will get

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of
