Answer:
In the figure attached, the graph of the function is shown.
1. f(9) ≈ 6 means that at t = 9 (year 1977 + 9 = 1986) the cost to produce 1 watt of solar energy was $6
2. f(4) ≈ 25, which means at year 1981 (=1977 + 4) the cost was $25 per watt
f(3.5) ≈ 28, which means at half of year 1980 (=1977 + 3.5) the cost was $28 per watt
3. When f(t) = 45, t is equal to 2, which means that the year wass 1979 (= 1977 + 2)
4. From the graph we can compute the following table:
x | y
0 | 80
1 | 60
The general exponential decay formula is:
f(x) = a*b^x
where <em>a</em> is the initial value and <em>b</em> si the decay factor. Replacing with data from the table:
f(0) = a*b^0
80 = a
f(1) = a*b^1
60/80 = b
0.75 = b
Answer:
7 is the greatest comman factor of 28 and 49
Answer:
The answer is C
Explanation:
This is because 2(-2) + -2 is smaller than -4
Explanation:
Distributive property: →
Expand equation.
Then, multiply 6*4.
Add by similar elements.
Don't forget to used variable with letter/symbol.
Hope this helps!
Thank you!
Have a great day!
-Charlie
Answer:
6 mph
Step-by-step explanation:
I divided 3 by 30 to find the miles per minute (.1) multiplied it by 60 minutes and got 6.
or you could just double the 3 because Dariel is running 2x as long as the original length and get the same answer