Answer:
174.68
Step-by-step explanation:
Use PEMDAS. First, multiply 1/-25 by 8. (-8/25 or-.32)
Then, add 175 and y should= 174.68.
Answer:
- B. When the peak temperature is 40°C, 72 units of electricity are used on average.
Step-by-step explanation:
We see the relationship is closer to linear in the interval 30 to 40
<u>Approximate points:</u>
<u>The slope of the line:</u>
- m = (54 - 34)/(34- 30) = 20/4 = 5
<u>The line is:</u>
- y - 34 = 5(x - 30)
- y = 5x - 116
<u>At x = 40, the value of y would be:</u>
The closet option is B
The answer is 27.1052631579 or 27.1 if you rounded "m" to .10
Answer:
0 = 2x² - 23x + 45
Step-by-step explanation:
0 = (x - 5/2)(x - 9)
0 = x² - 5/2x - 9x + 45/2
0 = 2x² - 23x + 45