Answer:
A. (1.5,20) : Sheryl worked 1 and a half hours and made 20dollars as a result.
(5,65) : Sheryl worked 5 hours and made 65 dollars.
B. 117 dollars.
Step-by-step explanation:
A. We can look at the graph to identify points. these will be most accurate if you look at where the line crosses one of the markings on your graph. Then, we can look at our acid labels to find out what these numbers correspond to. (5 on the x axis = 5 hours worked, etc.)
B. We need to figure out how many dollars Sheryl earns per hour. Since we have two reference points for that, we can just divide. If she makes 65 dollars in five hours, then you can divide by 5 to get how much she makes in one hour. 65/5 = 13, 13 * 9 = 117
Answer: 387
Step-by-step explanation:
Given : Standard deviation:
Margin of error : 0.15
Critical value for 80% confidence interval = 1.2816
Required minimum sample size :
Hence, the minimum sample size required to estimate the mean usage of water = 387
Answer: Harry Potter
Step-by-step explanation:
First, let's factor the equation to make it easier to solve for the intercepts:
f(x) = x² + 12x + 32
f(x) = (x + 8)(x + 4)
To find the x-intercepts of a function, set the y value (f(x)) to 0:
0 = (x + 8)(x + 4)
x = -8, -4
Similarly, to find the y-intercept, set the x values to 0:
f(x) = (0 + 8)(0 + 4)
f(x) = (8)(4)
f(x) = 32
*Note that you can see 32 as the y-intercept in the parabola's original equation
Once. 36 × 2 is 72. The remainder is 18.