Answer:
99
Step-by-step explanation:
Evaluate (x+y)/(x-y) for greatest possible value with the following constraints:
x ≠ y
1 ≤ x ≤ 50
1 ≤ y ≤ 50
To achieve greatest possible value:
Numerator should be as large as possible.
Denominator should be as small as possible without being negative.
x = 50
y = 49
= (50 + 49)/(50 - 49)
= 99/1 = 99
Answer:
Option A
f(x) = 12.5(1.6)^x
Step-by-step explanation:
The number of gnats the scientists have gathered
At 0 hours, they gathered 12 gnats.
Checking all the options, applying x = 0 makes the index part become 1 (Anything raised to the power zero is 1).
So, we have the following functions
f(x) = 12.5
f(x) = 12.6
f(x) = 6.2
f(x) = 1.6
This has reduced our work, as we can screen out options C and D, they are too far from 12. This leaves us with option A and B.
At 1 hour, they gathered 20 gnats.
Checking options A and B
A. f(x) = 12.5(1.6)
= 20
B. f(x) = 12.6(6.2)
By inspection, 12 × 6 is already 72,
12.6 × 6.2 will be more.
By these, we can conclude that f(x) = 12.5(1.6)^x has the best models the number of gnats the scientists have gathered after the number of hours listed in the given table.
Let n = number
"3 times the sum of a number and 7" translates to 3(n + 7)
"2 less than five times the number" translates to 5n - 2
The word "is" becomes the equals sign.
3(n + 7) = 5n - 2
I think you already asked this one.
E because 6 times .375 which is 3/8 = 16
Answer:
5 5/16
Step-by-step explanation:
you just divide 42 1/2 by 8
