12:27
4:9
8:18
Is it 18 inch squared?
I’m not quite sure
Answer:
f(-4) = -120
Step-by-step explanation:
So we know that f(x) = 11x - 5x² + 4, and we are trying to solve for f(-4). To solve for f(-4), we plug -4 for x in the equation of f(x). In other words, change all x's into -4 in the equation 11x - 5x² + 4 and then solve.
f(x) = 11x - 5x² + 4
Plug in -4 for x.
f(-4) = 11(-4) - 5(-4)² +4
Simplify. 11(-4) = -44, 5(-4)² = 5(16) = 80.
f(-4) = -44 - 80 + 4
Solve.
f(-4) = -120
The answer is f(-4) = -120.
I hope this helps. If you need any clarifications, feel free to ask. Happy studying. :)
Answer:
x = 110
Step-by-step explanation:
This shape is a heptagon. A heptagon's interior angles add up to 900 degrees. You can solve for x by finding the sum of all known values, and subtracting that sum from 900.
105 + 150 + 140 + 135 + 125 + 135 = 790
900 - 790 = 110
I think the answer its 42.91
<h2>Population becomes 550 in 27 days</h2>
Step-by-step explanation:
The population of spiders in a lab is modeled by the function , where represents the number of days since population was first counted.
Consider that after days, the population of spiders has grown to 550. We need to find such .
Applying logarithm on both sides,
∴ It takes about 27 days for the population to become 550.