How do you do this function (b - 4)(2b - 5)
1 answer:
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Answer:
28.27
Step-by-step explanation:
first you have to stablish the formula for the area of the circle, which is A=pi×radius square. Then, you have to substitute the variables and solve. the formula with the numbers plugged in would be A=3.14×3 square. Finally, solve by multiplying 3×3=9, so the formula would be 9×3.14, when multiplyed, your answer would be 28.27 if you round it.
I believe your mistake is that you are trying to use the sector area formula ti find arc length when there is already a formula for it.
The formula for it is
So first substitute the values in and then simplify!
Now simplify!
21 × 118 is 2478 so it's
When divided ou and multiplied, this is 21.62cm!
The formula for it is
So first substitute the values in and then simplify!
Now simplify!
21 × 118 is 2478 so it's
When divided ou and multiplied, this is 21.62cm!