Answer:
![m>2.40](https://tex.z-dn.net/?f=m%3E2.40)
Step-by-step explanation:
Let m denotes the number of minutes of phone use in a month.
In plan a there is no monthly fee, but the customer pays 8 cents per minute of use.
Total cost of plan a = ![8m](https://tex.z-dn.net/?f=8m)
In Plan B the customer pays a monthly fee of $2.40 and then an additional 7 cents per minute of use.
Total cost of plan b = ![2.40+7m](https://tex.z-dn.net/?f=2.40%2B7m)
To find amount of monthly phone use for which plan a cost more than plan b, solve the inequality
.
![8m>2.40+7m\\8m-7m>2.40\\m>2.40](https://tex.z-dn.net/?f=8m%3E2.40%2B7m%5C%5C8m-7m%3E2.40%5C%5Cm%3E2.40)
Answer:
The image of AB will be 15 cm long after dilation by a scale factor of 5.
Step-by-step explanation:
We know that when an object is dilated by a scale factor, it gets reduced, stretched, or remains the same, depending upon the value of the scale factor.
- If the scale factor > 1, the image is enlarged
- If the scale factor is between 0 and 1, it gets shrunk
- If the scale factor = 1, the object and the image are congruent
Rule to calculate the mage of the segment AB after dilation of the segment AB by a scale factor 5 centered at the origin
AB = length → A'B' = 5(length)
It means the length of the image of the segment AB can be determined by multiplying the length of the original segment AB by 5.
so
AB = 3 cm
Thus, the length of image A'B' will be:
A'B' = 5(3) = 15 cm
Therefore, the image of AB will be 15 cm long after dilation by a scale factor of 5.
Answer:
7+8+9/7*8*9 = 24/504 or 0.0476
Step-by-step explanation:
Answer:
Where's the graph?
Step-by-step explanation:
need an better explanation on how to do this question
Answer:
(3/2, 5/2)
Step-by-step explanation:
The x value for the vertex of a parabola in the form y=ax^2+bx+c is -b/2a. The x value is then plugged into the function to find the y value.