The given formula is f(t) = 0.4t
They want to solve for f(10), replace t in the formula with 10"
f(10) = 0.4(10)
Multiply:
f(10) = 4 centimeters.
Answer: 
Step-by-step explanation:
The equation of a circle in the general form is:

The equaton of a circle in standard form is:

Where the center is at <em>(h, k)</em> and <em>r</em> is the radius
To write the equation of a circle from general form to standard form, you must complete the squaare, as you can see below:
1- Given the equation in general form:

2- Complete the square:
-Group the like terms and move the constant to the other side.
- Complete the square on the left side of the equation.
- Add the same value to the other side.
Then you obtain:

Answer:
5000 is the answer
Step-by-step explanation:
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For question 6 the answer is 100 because a quarter of a circle is 90 degrees
Answer:
The u equation, a parabola
Step-by-step explanation:
This is a quadratic equation, since we have a variable 'x' raised to second power.
The vertex can be found using the formula x=-b/2a when the parabola is written as y=ax2 + bx +c.