Answer:
(x - 8)² + (y + 2)² = 289
Step-by-step explanation:
Assuming you require the equation of the circle.
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
Here (h, k) = (8, - 2) and r = 17, thus
(x - 8)² + (y - (- 2))² = 17², that is
(x - 8)² + (y + 2)² = 289 ← equation of circle
Answer:
A
Step-by-step explanation:
The velocity of a moving body is given by the equation:
Is the velocity is <em>positive </em>(v>0), then our object will be moving <em>forwards</em>.
And if the velocity is negative (v<0), then our object will be moving <em>backwards</em>.
We want to find between which interval(s) is the object moving backwards. Hence, the second condition. Therefore:
By substitution:
Solve. To do so, we can first solve for <em>t</em> and then test values. By factoring:
Zero Product Property:
Now, by testing values for t<1, 1<t<4, and t>4, we see that:
So, the (only) interval for which <em>v</em> is <0 is the second interval: 1<t<4.
Hence, our answer is A.
Answer:
The metric system is an alternative system of measurement used in most countries, as well as in the United States. The metric system is based on joining one of a series of prefixes, including kilo-, hecto-, deka-, deci-, centi-, and milli-, with a base unit of measurement, such as meter, liter, or gram.
Answer:
11.625inches
Step-by-step explanation:
If a model car is built on a 1:16 scale and the length of actual car is 186inches
16inches = 1
186inches = x
16* x = 186
x = 186/16
x = 11.625
hence the wheel base of the model is 11.625inches
Answer:
d = 4 inches
Step-by-step explanation:
The radius is 2
The diameter is twice the radius
d = 2*r
d = 2*2 inches
d = 4 inches