What is the area of a circle with a radius of 6 inches?
2 answers:
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Answer:
24
Step-by-step explanation:
Let the number be x.
Sum of the number and 6:
Divide it by 3:
Result is 4 more than one quarter of the number:
Multiply both sides by 12:
Simplify:
Expand:
Subtract 24 from both sides:
Subtract 3x from both sides:
The number is 24.
Answer:
f(x) = 3x^2 -21x +36
Step-by-step explanation:
The table gives the x- and y-intercepts, which are sufficient to write the equation in factored form. The x-intercepts of 3 and 4 tell you that factors are (x -3)(x -4). When x=0, this product is (-3)(-4) = 12, but the y-intercept value is 3 times that: 36. So, the factored equation is ...
f(x) = 3(x -3)(x -4)
Multiplying this out, we get ...
f(x) = 3(x^2 -7x +12)
f(x) = 3x^2 -21x +36
