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Irina-Kira [14]
3 years ago
12

the circumference of a circle is a(pi) units, and the area of the circle is b(pi) square units. If a=b, what is the radius of th

e circle​
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
8 0

Answer:

the redius is 0 unit or 1/2^(1/2) unit.

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An iPod sold for $300, which was 200% of the actual cost. What was the actual cost?
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Answer:

If $300 is 200%, half of that would be 100%. Thus, $150 is the correct answer.

Step-by-step explanation:

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3 years ago
Use the Law of Cosines to find the missing angle. In triangle JKL, j=3in., k=4in., and l=2.89., find mJ
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Using the law of cosine for Triangle KJL, we can write:

j^{2} = k^{2} + l^{2}-2(k)(l)cos(J)  \\  \\ 
2(k)(l)cos(J)=k^{2} + l^{2}- j^{2} \\  \\ 
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Using the values of k,j and l, we can write:

cos(J)= \frac{ 4^{2} + (2.89)^{2} - 3^{2} }{2(4)(2.89)}  \\  \\ 
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So option B gives the correct answer
8 0
3 years ago
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Whats the area of the shape
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Answer:

Step-by-step explanation: what are the dimensions

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2 years ago
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A train traveled the first 200 miles of its trip at a speed of 50 mph and the next 130 miles at a speed of 65 mph. What was the
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4 0
3 years ago
Suppose Adam wants to have $750,000 in his IRA at the end of 30 years. He decides to invest in an annuity paying 6% interest, co
OLga [1]

Answer:

  $9486.68

Step-by-step explanation:

The future value of a annuity formula can be used:

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Adam has to contribute $9,486.68 each year to reach his goal.

6 0
4 years ago
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