Answer:
You must add 145 to the expression.
Step-by-step explanation:
For x - 145 = x, you must make it so that x = x. To do so, you must add 145 to the expression.
x - 145 (+145) = x
~
Answer:
Step-by-step explanation:
Simplify
___________
Apply the negative rule :
Add exponents :
Add exponents once again :
Multiply the whole number by the variable expression :
Braden bought 18 pencils for $4.50.
If x represents the number of pencils purchased, and y represents the total cost, then
x=18,
y=4.50
and
point (x,y) will have coordinates (18,4.5).
Answer: (18,4.5).
We are asked in the problem to solve for x in the expression tan(x+π)+2sin(x+π) = 0. tan theta is equal to sin theta over cos theta. Hence, the expression results to tan (x+π) = sin (x+π) / cos (x+π) = -2sin (x+π). Thus, 1/cos (x+π) = -2. cos (x+π) = -1/2, cosine becomes negative in the third and fourth quadrants. cosine is 1/2 when the terminal angle is pi/3. x is equal to pi/3 then and 5 pi/6.