Answer:
-3
Step-by-step explanation:
Answer:
(2pi)/5
Step-by-step explanation:
The cosine function cos(x) has a period of 2*pi.
If we change the argument of the cosine, the new argument will have a period of 2*pi. If the new argument is 5x, we have that the period will be:
5x = 2*pi
x = 2*pi/5
The period of this function will be (2pi)/5, because for every (2pi)/5 change in the value of x, the function will have the same value. The value of 5 multiplying the cosine does not interfere in the period.
Y= 5x
x+y= 245
X+ (5X) = 245
6X = 245
divide both sides by six and their is your answer :)
good luck! and message me if you have any more questions and you want to learn and not cheat you way out of it
Answer:
103.32
Step-by-step explanation:
May way to answer a question like this
84(1+23/100)
Lets break it down:
Step 1. 23/100=0.23
Step2. 0.23+1=1.23
Step3. 1.23 x 84=103.32
I hope this helps You
Answer:
Step-by-step explanation:
The goal to solving any equation is to have x = {something}. That means we need to get the x out from underneath that radical. It's a square root, so we can "undo" it by squaring. Square both sides because this is an equation. Squaring both sides gives you
Get everything on one side of the equals sign and set the quadratic equal to 0:
Throw this into the quadratic formula to get that the solutions are x = 5 and -8. We need to see if only one works, both work, or neither work in the original equation.
Does 
?
and
and 5 = 5. So 5 works. Let's try -8 now:
and
so
-8 = 8? No it doesn't. So only 5 works. Your choice is the third one down.
