Answer:
195 degrees
Step-by-step explanation:
Once again, since the total degree measure of a circle is 360 degrees, if one arc of the circumference is 165 degrees then the rest of the circle is 360-165=195 degrees. Hope this helps!
Hello!
The number 49 is similar to other numbers like 25, 81, 4, or 64. All these numbers are perfect squares. Perfect squares are numbers multiplied by itself. Here is a list of commonly used perfect squares.
- 1 × 1 = 1
- 2 × 2 = 4
- 3 × 3 = 9
- 4 × 4 = 16
- 5 × 5 = 25
- 6 × 6 = 36
- 7 × 7 = 49
- 8 × 8 = 64
- 9 × 9 = 81
- 10 × 10 = 100
- 11 × 11 = 121
- 12 × 12 = 144
From the list above, the square root of 49 is 7, but the question asks for the <u>negative</u><u> square root of 49</u>, which is written as: -√49.
To simplify this expression, first, simplify the radical, and then multiply the product by negative one.
7 × -1 = -7
Therefore, the negative square root of 49 is choice C, - 7.
