The scatter plot below shows the number of pizzas sold during weeks when different numbers of coupons were issued. The equation
represents the linear model for this data.
y = 3.4x + 43
According to the model, how many pizzas will be sold nightly if 15 coupons are issued?
Enter your answer in the box.
# of pizzas_____
y = 3.4x + 43
According to the model, how many pizzas will be sold nightly if 15 coupons are issued?
Enter your answer in the box.
# of pizzas_____
2 answers:
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Answer:
Step-by-step explanation:
We know that we'll have to manipulate the equation , so we can start there.
stands for the gradient of the function (or slope) and
stands for the y-intercept of the function (the y value where the line touches the vertical line (y axis)).
Since we know that stands for the slope and that the slope in this problem is 5, we can plug it into the original equation and we'll get
We also know that this line passes through the point (4,24). This means that it passes through the point where x = 4 and y = 24. If we plug in these values into the equation that we made above, we can solve for b.
Now that we know what b is, we can plug it into and we'll get
Good luck!
The numerical value of the mean voltage is 25.47 V
To find the numerical value of the mean voltage, V of V(t) = 40 sin(t), we integrate V(t) with respect to t over the interval [0.π]
So,
V ≅ 25.47 V
So, the numerical value of the mean voltage is 25.47 V
Learn more about mean volatage here: