Note that the formula for the circumference of a circle is πd, while the formula for the area of a circle is πr².
π≈3.14
A. C=πd
Simply plug in the numbers into the formula.
Diameter=Radius*2
17*2=34
C=34(π)
B. (π)(5²)
Plug in the numbers into the formula. Remember that half of the diameter is the radius.
C. (π)(4.5)
There are two possible formulas that could be used to calculate the circumference of a circle: πd and 2πr.
The expression above is simply multiplying the circle's radius times pi. Therefore, it is not a method that could be used to find the circumference of a circle.
D. (π)(6.5²)
Remember that the formula for calculating the area of a circle is πr².
Half of the diameter is 6.5 (13.5/2=6.5). 6.5 cm. is the radius. Now just plug the numbers into the formula.
(π)(6.5²)
Therefore, the last answer choice is the correct answer.
Answer:
4x-6
Step-by-step explanation:
Less than means it comes after so we need to do the product of 4 and the number x
4x
Now subtract 6
4x-6
Answer:
x = 348
Step-by-step explanation:
From the given we can tell it a supplementary angle.
<u>Don't know what supplementary angle is?</u>
<em>Supplementary angle are angles that :</em>
<em>Equal 180 °</em>
<em />
<u><em>Solve: </em></u>
<em>Since,</em>
<em>∠ABD is (0.18x+54)° </em>
<em>∠CBD is (0.07x+39)°</em>
<em />
<em>Thus,</em>
<em>(0.18x+54) + 0.07x + 39 = 180</em>
<em>Group likes terms:</em>
<em>0.25x + 54 + 39 = 180</em>
<em>0.25 + 93 = 180</em>
<em>Subtract 93 from both sides</em>
<em>0.25x = 87</em>
<em>x = 348</em>
<em />
<em>Check Answer:</em>
<em>0.18(348) + 54 + 0.07(348) + 39 </em>
<em>= 180</em>
<em />
<em />
The answer is x^2-5x-6
Don’t mind my English work in the background
Answer:
Step-by-step explanation:
<u>Question</u>:
- Find the distance between (-4,-3) (2,1)
<u>To find:</u>
- The distance between (-4,-3) (2,1).
Use the distance formula.
<u>Distance formula:</u>
Solve.
- <u>Therefore, the final answer is 2√13.</u>
I hope this helps, let me know if you have any questions.
