Multiply and remove all perfect squares from inside the square roots. Assume x is positive. 2 squareroot 7x*3 squareroot 14x^2
1 answer:
You might be interested in
The best firm for the Appliance manufacturer for the repair work is Firm 2 .
In the question ,
it is given that ,
An appliance manufacturer wants to contract with a repair shop to handle authorized repairs in Indianapolis .
The acceptable range of the repair time is 50 minutes to 90 minutes.
the mean repair time for firm 1 = 74 minutes and standard deviation of 4 minutes .
the mean repair time for firm 2 = 72 minutes and standard deviation of 5.1 minutes .
the range is calculated using the formula
Range = Mean ± Standard Deviation
So , for firm 1 ,
the Range = 74 ± 4
= 74 4 and 74 - 4
= 78 and 70
the range for firm 2 is
= 72 ± 5.1
= 72 5.1 and 72 - 5.1
= 7.1 and 66.9
The second company has a lower range and it should be preferred .
Therefore , The best firm for the Appliance manufacturer for the repair work is Firm 2 .
Learn more about Standard Deviation here
#SPJ1
Answer:
Known two points, list function expression, use
The function expression is
It is known that the cross section of two points is 7, so the point of 2:3 is 14 / 5, that is, 0 + 14 / 5 is the abscissa of the point, which is substituted into the original equation to get y = - 7 / 5.
So the result is
Answer:
D. A quadratic function since the points are symmetric about the line .
Step-by-step explanation:
Please consider the complete question.
A travel agency made the table below to represent the profits it make on a certain vacation package.
x Profit per Person (in dollars), f(x)
10 500
20 800
30 900
40 800
50 500
Which of the following explains the best model for the data in the table?
A) An absolute value function since the values increase and then decrease
B) An exponential function since the ratio of the y-values are about the same.
C) A linear function since the function changes at a rate of 30 dollars per person
D) A quadratic function since the points are symmetric about the line x = 30.
First of all, we will graph all the given points on coordinate plane and then join the points to see the graph.
We can see that point (10,500) is symmetric to point (50,500). Point (20,800) is symmetric to point (40,800).
Upon looking at attached image, we can see that the data forms the shape of a downward opening parabola, which is symmetric to line .
Therefore, a quadratic function best represents the given data because the points are symmetric about the line .
