Answer:
cot . (x- π/2)= - tanx
Step-by-step explanation:
cot . (x- π/2)= - tanx
cot .x - cot π/2= - tanx
cot π/2= 1/tanπ/2
But tan π/2= ∞
cot π/2 = 1/∞= 0
cotx - 0= - tanx
cot x = - tanx
cosx/sinx= - sinx/cosx Putting values of cot and tan
cosx/ sinx ( sinx/cos x) = -sinx/cos x (sinx/cos x )
Multiplying both sides with sinx/cos x
1= - sin²x/cos²x
cos²x= - sin²x as cosx = -sinx
Answer:
179 minutes
Step-by-step explanation:
You can write an equation to represent the cost of the rental, and then you can solve the equation to find the number of hours.
Let m = number of minutes.
The total cost is the cost per minute plus the fee to start.
1 minute costs $0.12.
2 minutes cost $0.12 * 2
x minutes cost $0.12 * x, or simply 0.12x.
The fee to start is $2, so the total to rent for m minutes is 0.12m + 2.
The equation
c = 0.12m + 2
gives you the cost, c, for a rental of m minutes.
We are told the total cost was $23.48. Replace c with 23.48, and solve for m, the number of minutes.
23.48 = 0.12m + 2
Switch sides.
0.12m + 2 = 23.48
Subtract 2 from both sides.
0.12m = 21.48
Divide both sides by 0.12
m = 21.48/0.12
m = 179
Answer: 179 minutes
Hello,
To solve, factour out the expression: <span>9a^4b^4-27a^3b^3+18a^3b^2.
Once factoured out you get the GCF 9a^(3)b^(2)
Faith xoxo</span>
This is under point slope intercept. so Ax+Bx=Cx. you can always change this to slope intercept which will be -.6y=.2x+.12 then give 1 a variable like 1 or 2 or something. then solve it, -.6y=.2+.12, -.6y=.32, y=-.53 so when x is 1, y is -.53. then make x 2 so -.6y=.52 so then when x is 2 y is -.86
Answer:
FALSEE???
Step-by-step explanation:
I HAVE NO IDEA GIRL- IM DOING THAT QUESTION RN TO THO -
