A blimp is providing aerial television views of a football game. The television camera sights the stadium at a 7 degree angle of
1 answer:
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Answer:
9.)
10.)
11.) minutes of calling would make the two plans equal.
12.) Company B.
Step-by-step explanation:
Let <em>t</em> equal the total cost, and <em>m,</em> minutes.
Set up your models for questions 9 & 10 like this:
<em>total cost = (cost per minute)# of minutes + monthly fee</em>
Substitute your values for #9:
Substitute your values for #10:
__
To find how many minutes of calling would result in an equal total cost, we have to set the two models we just got equal to each other.
Let's subtract from both sides of the equation:
Subtract from both sides of the equation:
Divide by the coefficient of , in this case:
__
Let's substitute minutes into both of our original models from questions 9 & 10 to see which one the person should choose (the cheaper one).
Company A:
Multiply.
Add.
Company B:
Multiply.
Add.
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The area of flying disk is 452.16 square centimeters
Step-by-step explanation:
The disc is in circular shape so we will use the formulas for circle in this question.
Given
Circumference = C = 75.36 centimeters
We have to find the area of the disc for which we have to find the radius first.
Let r be the radius
Then
Circumference is given by:
putting the values
Dividing both sides by 6.28
The area of circle is given by:
Putting the values
Hence,
The area of flying disk is 452.16 square centimeters
Keywords: Circle, area
Learn more about circle at:
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