Answer:
(10x + 8y)(10x - 8y)
Step-by-step explanation:
The given expression is 100x^2 -64y^2
100 can be written as 10^2
64 can be written as 8^2
100x^2 - 64y^2 = (10x)^2 - (8y)^2
We know that a^2 - b^2 = (a +b )(a - b)
Applying the formula, we get
(10x)^2 - (8y)^2 = (10x + 8y)(10x - 8y)
Answer: (10x + 8y)(10x - 8y)
Thank you.
Answer:
The equation is y = -2/5x + 4
Step-by-step explanation:
First we have to find the slope of the line. In order to do so, solve the first equation for y.
2x + 5y = 20
5y = -2x + 20
y = -2/5x + 4
This gives us a slope of -2/5. Given that information, we now can plug the slope and point into point-slope form and get the final equation.
y - y1 = m(x - x1)
y - 6 = -2/5(x - -5)
y - 6 = -2/5(x + 5)
y - 6 = -2/5x - 2
y = -2/5x + 4
Answer:$90
Step-by-step explanation: $30 is the cost. 200 is the percent of Mark-up, so you take 100 percent of 30 and add it together then you get 60. Repeat that step for a total of 90. 100 percent of 30 is 30. So 30+ 30+ 30 = 90.
If t = 0, this would indicate that no time has passed and therefore no visitors have since visited the website. (10,600 • 2(0) = 0)
if t = -2, this would indicate that this is how many visitors there were in comparison to 2 months ago, which is why the number is negative to indicate that there were less visitors two months prior compared to now (10,600 • 2(-2) = -42,400)
