The value would be $2.53 million.
Set up a proportion to solve this:
7.6/78 = x/(78-52)
[7.6 million for 78 years; x million for 78-52 years remaining]
Cross multiply:
7.6(78-52) = x*78
7.6(26) = 78x
197.6 = 78x
Divide both sides by 78:
197.6/78 = 78x/78
2.53 = x
y = - 3(x + 1 )² + 2
the equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
here vertex = (- 1, 2), hence
y = a(x + 1)² + 2
to find a substitute (1, - 10) into the equation
- 10 = 4a + 2 ⇒ 4a = - 12 ⇒ a = - 3
y = - 3(x + 1)² + 2 ← in vertex form
Answer:
v - w - 1
Step-by-step explanation:
Try an experiment with a small, specific set of numbers like:
4, 5, 6, 7, 8, 9, 10 w = 4 and v = 10.
There are 5 numbers in the list, not counting the first and last. Is this related to the difference between v and w? v - w = 6, one more than 5.
The number of natural numbers between w and v, not including w and v, is v - w - 1.
Answer:
C. 60
Step-by-step explanation:
1500 * 0.04 = 60 light bulbs
