The answers to the questions
X = 2
Y= 1
2-1 = 1 ✔️
2+1 = 3 ✔️
Y^3+5y^2-14y
y(y^2+5y-14)
y(y^2+7y-2y-14)
y(y(y+7)-2(y+7))
y(y-2)(y+7)
So there are infinite solutions with the only restriction being that y>2 as V>0
Answer:
72 Wrong, so find how many are right with 135 total
Step-by-step explanation:
It's similar to saying if she answered half and this continued how many would she have answered after answering a bigger number, you would say half.
so she answered 8/15 incorrectly a a smaller number, so she will answer that ratio with a bigger number. If it helps 8/15 is about 53%. just like 1/2 is half. So to find half you would multiply something by 1/2 and int he same way you multiply something by 8/15 to get that proportion of it.
so 135, if you take this 53%, or simply multiply it by 8/15 you get your answer of 72. So 72 wrong so al others are right, which you get with 135-72 = 63.
You could also do 135*(1-8/15) = 135 * 7/15. if you ever want to find something NOT part of the proportion you do 1 - that proportion.
Answer:
I would need some more information to determine this. See explanation.
Step-by-step explanation:
This equation is written in slope-intercept form, which indicates a line on a graph where the slope of the line is 3, and the y-intercept is -7. Knowing this, you could graph a line where the line crosses the y-axis at -7 (0, -7), and then use the slope to plot other points (such as 1,-4).
Another way to do this is to pick any number for x, and then solve for y. So if you are looking for any ordered pair on this line, pick a number:
Let's do x=5.
y = 3(5)-7
y = 15 - 7
y = 8. This means the ordered pair of (5,8) would satisfy the equation.
One more example, using the value of x=8
y=3(8) - 7
y = 24 - 7
y = 17
This means the ordered pair of (8, 17) would also satisfy the equation.
Make sense?
