72 + 78 + 70 + x > = 289 (thats greater then or equal)
or
220 + x > = 289
Answer:
D
Step-by-step explanation:
the best answer may be D because 9/3 =3 3×5=15
<h3>4
Answers: </h3>
- Choice A
- Choice D
- Choice E
- Choice F
So basically everything but choices B and C are functions.
====================================
Explanation:
- A. This is a function as there are no repeated input x values. Each input (x) leads to exactly one output (y).
- B. This is not a function. We have the input 2 lead to more than one output (1 and 4 at the same time)
- C. This is not a function. Similar to choice B, we have multiple outputs for a given input. In this case, x = 20 has more than one output.
- D. This is a function. Any x input will produce only one y output. When graphed, it passes the vertical line test.
- E. This is a function. This graph passes the vertical line test. It is not possible to draw a vertical line through more than one point on the blue curve, so that's what I mean by "passing the vertical line test".
- F. This is a function. At any given hour (x), there is exactly one temperature (y) possible. The thermometer is not going to produce multiple readings at any one specific moment in time.
Answer:
Explanation: The formula for the equation of a circle is shown below.
(x - h)² + (y - k)² = r²
In the equation, (h,k) is the center of the circle and <em>r</em> is the radius.
To find the radius, we look at the original formula and notice that the radius squared is equal to 16 or <em>r² = 16</em>.
Simply take the square root of both sides to get <em>r = 4</em>.
So this circle has a radius of 4.