Answer:
the graph is attached
Step-by-step explanation:
This sort of equation makes it easy to find the x- and y-intercepts. Setting x to zero gives ...
y = -11 . . . . . the y-intercept
Setting y to zero gives ...
x = -11 . . . . . the x-intercept
You can plot these two points, then draw a line through them to complete the graph.
Every point on this line is a solution to the equation.
Answer:
what do you need help with?
Step-by-step explanation:
please tell me what do you need helpwith
We need to find two relations, and use them to find the value of y when z = 15.
We will see that the value of y in that case is 4,860.
We know that <u>y varies inversely with the square of x</u>, also <u>y is also proportional to the cube of z</u>
Then we can write:
y = k/x^2
y = c*z^3
We also know that:
When x = 3, y = 80.
Replacing that in the first equation to find the value of k:
80 = k/3^2
80 = k/9
80*9 = k = 720
We also know that when x = 2, z = 5
From the first relation we have:
y = 720/2^2 = 720/4 = 180
Now we replace this in the equation of y and z:
y = c*z^3
180 = c*5^3
180 = c*125
180/125 = c = 1.44
Now we need to calculate y when z = 15, then we just need to replace z by 15 in the equation for y and z:
y = 1.44*(15)^3 = 4,860.
If you want to learn more, you can read:
brainly.com/question/2548537
X = -3, 3, 2i, -2i
Hope this helps! :)
In order to simplify this expression, we need to add the like terms.
Like terms are terms that have the same variables to the same power.
So we have:
Therefore the correct option is the fourth one.
