I believe it is -392 • 49^2 = -4
-392 times 49 to the power of 2 equals -4.
Answer:
25.1
Step-by-step explanation:
Sin=opposite/hypotenuse
Sinx=4.2/9.9
x=arcsin(4.2/9.9)
x=25.1 degrees rounded from 25.102
<span>cos t(sect- cos t)
sec t = 1/cos t so
= cos t( 1/cos t - cos t)
= cos t / cos t - cos²t (distribute)
= 1 - cos²t
since sin²t + cos²t = 1, we have sin²t = 1 - cos²t
so
= sin² t
=right-hand side
</span>
<span>If you want to know the domain of a function through its graph, I simply have to "scan" the graph of the function from left to right along the X axis and see the ranges of values of the x for which it exists a value on the Y axis. In this graph it is observed that for any value of X there will be a value of Y, so that the domain of the graph function is all the real values of X</span><span>
the domain of the graphed function is</span><span>
{x | x is a real number}</span>
Answer:
7/2 and 3
Step-by-step explanation:
using quadratic formula
{-(-13) +- √(-13)^2 - 4(2)(21) } /2(2)
-(-13)+1 / 4 = 7/2
-(-13)-1 / 4 = 3