Answer:
13
Step-by-step explanation:
The square root of 169 is 13.
To find out, multiply 13 x 13.
13 x 13 is 169.
Answer:
81.0
Step-by-step explanation:
The tenth is the decimal directly to the right of the period (.) Since the next number to the right is 1, you would round down, which is 0.
Short answer: It's a circle.
Argument
A parabola has a power of x on one side of the equal sign.
A circle (like this one) has variables raised to the second degree (x and y). The number in front of x^2 and y^2 is equal, usually 1.
An ellipse has x^2 and y^2 present, the numbers in front of x^2 is different from the number in front of y^2
hyperbola has a minus sign between the x^ and y^2. or between the y^2 and x^2
These are the main characteristics of each. They are not the only ones.
Answer:
A. 1520.5 cm^2
Step-by-step explanation:
The area of a circle can be found using the following equation:
In this problem, the radius (from the center of the circle to the circumference of the circle) is 22 centimeters. Therefore, we can substitute 22 cm in for r.
r=22 cm
First, evaluate the exponent.
22 cm ^2= 22 cm * 22 cm= 484 cm^2
Multiply pi and 484
Round to the nearest tenth. The 3 in the hundredth place tell us to leave the 5 in the tenth place.
The area of the circle is 1520.5 square centimeters and A is correct.