Hello :
<span>f(x) = 8x² + 2x - 5
f(x) = 8(x²+1/4 x)-5
f(x) = 8(x²+2(1/8)x +(1/8)² -(1/8)² ) -5
f(x) = 8((x+1/8)²-1/8-5
f(x) = 8(x+1/8)²-41/5....(vertex form)</span>
Answer:
Step by step explanation:
Let d represent the rate of temperature decrease in degrees Celsius per day from Monday to Thursday.
As temperature decreased at a constant rate in the next 3 days, so the rate of temperature will decrease 3d degree Celsius in 3 days.
We are told that the pool was open on Monday. The high temperature was on Monday. So the decrease in temperature from Monday to Thursday will be .
We have been given that the swimming pool is open when the high temperature is higher than .
As the pool was closed on Thursday. This means that temperature on Thursday was less than or equal to 20 degree Celsius. We can represent this information in an inequality as:
Therefore, the inequality can be used to determine the rate of temperature decrease in degrees Celsius per day, d, from Monday to Thursday.
Answer:
-9
Step-by-step explanation:
0.1 x (-9 ) = - 0.9
- 0.9 x - 9= 8.1
How about using the calc :)
Answer:
1. 5
2. 0
3. -3
4. -38
Step-by-step explanation:
from 1 to 4 i answered and solved hope its helpful