Y = e^tanx - 2
To find at which point it crosses x axis we state that y= 0
e^tanx - 2 = 0
e^tanx = 2
tanx = ln 2
tanx = 0.69314
x = 0.6061
to find slope at that point first we need to find first derivative of funtion y.
y' = (e^tanx)*1/cos^2(x)
now we express x = 0.6061 in y' and we get:
y' = k = 2,9599
Answer:
x=5
Step-by-step explanation:
9x^2 - 2x + 25 = 8x^2 + 8x
9x^2-8x^2-2x-8x+25=0
x^2-6x+25=0 factorize
(x-5)(x-5)=0
x-5=0 then x=5
Answer: D
Step-by-step explanation:
The equation parallel to the given equation is y = x + 3
Work:
Answer:
95 degrees
Step-by-step explanation:
A supplementary angle is an angle that equals 180 degrees. Here it shows that 85 degrees + x = 180 degrees, since part of the supplementary angle has already been taken up by the 85 degrees and x is remaining. Therefore, solve the equation for x.
85 + x = 180
x = 95