Answer:
9x square + y squared + z squared
Step-by-step explanation:
Multiply all the numbers by '-'. Then square them all
Answer: (x, y) transforms into (-x, y)
Step-by-step explanation:
When we do a reflection over a given axis, the distance between the initial point to the axis must be the same as the distance of the reflected point to the axis.
So if we do a reflection over the y-axis, then the value of y must be fixed.
So if we start with the point (x, y), the only other point that is at the same distance from the y-axis is the point (-x, y)
So the rule is, the y value remains equal and the x changes of sign.
Answer:
Step-by-step explanation:
Total amount of Money saved by Manny is $150. He wants to buy a digital player with it.
The digital music player costs $89, and each song costs $0.99. Let x represent the number of songs that he can afford. This means that the cost of x songs would be
89 + 0.99x
If Manny spends no more than $150, before tax, the number of songs that he can buy will be
89 + 0.99x = 150
0.99x = 150 - 89 = 61
x = 61/0.99 = 61.6
He can buy 61 songs
1.59/15= $0.106
3.95/29= $0.105
Therefore, the second is better buy.
