I got 0.003636 hope this helps
Answer:
∠ 6 = 55°
Step-by-step explanation:
∠ 6 and 125° are same- side interior angles and sum to 180° , then
∠ 6 = 180° - 125° = 55°
1. Relative extrema of functions are the "tops" or the "bottoms" of the curves (the graphs) representing functions. So they are the points at which the tangent lines are horizontal.
2. In short we are looking for the solutions of f'(x)=0
3. f'(x)=
-9=0
Notice:
so that the square root of this expression exists. So x
1 or x
-1
Also in
notice that the root is always positive and 1/9 is positive, so x must be positive. This second condition, combined with the first one tells us that the solution is in x
1
4.
Square both sides
let
Then the 4th degree equation becomes the quadratic equation
The discriminant D=
is not considered as
so t cannot be negative
x=
via the angle sum identity for cosine.
Answer:
Step-by-step explanation:
Chrissie likes to tip a server in a restaurant a minimum of 25% of her lunch bill. She and her friend have a lunch bill that is $13.78. This means that the amount of tip that she would give to the server would be
25/100 × 13.78 = 0.25 × 13.78 = $3.445
If Chrissie says the tip will be $3.00, he is incorrect because the tip is $3.445 which is higher than $3
If her friend says that the amount is not a minimum of 25% he is correct because a minimum if 25% is $3.445 which is higher than $3