Answer:
A 45
Step-by-step explanation:
45 is the answer and hope this helps!
When you have a negative exponent, you move the variable with the negative exponent to the other side of the fraction to make the exponent positive.
For example:
or 
(you don't move the "2" because "2" has an exponent of 1, only "y" has the negative exponent)
When you multiply a variable with an exponent by a variable with an exponent, you add the exponents together. (But you can only combine the exponents when the variables are the same)
(You can't combine them because they have different variables of x and y)
There's two ways you can do this. Either by first making all the exponents positive then do subtraction, or multiply them then make all the exponents positive. I'm doing the 2nd way.
You can combine the numbers 2 x 9 x 2 = 36
Now multiply the terms with the same variables
Now make all the exponents positive
If you were to do subtraction, here is what you need to know:
When you divide a variable with an exponent by a variable with an exponent, you subtract the exponents together. (Reminder: they have to be the same variable in order to combine the exponents)
For example:
or x
Answer:
x - 3y - 7 = 0
Step-by-step explanation:
We can first write this equation in Point Slope form, and then rearrange it to general form.
Note: the given point is (h,k)
Slope is m.
The equation is:
y-k=m(x-h)
Therefore, the equation in point slope form would be:
y+2=1/3(x-1)
Now, we can change that to general form.
y+2=1/3x-1/3
1/3x-1/3-y-2=0
1/3x-y-2 1/3=0
Multiply everything by 3.
x-3y-7=0
Therefore, the corrrect answer is option 3.
Answer:
x=7
Step-by-step explanation:
if you look at this diagram as 2 triangles, the little one, and then the big one that the little one is inside of, and realize that they are similar triangles (by AAA standards) you can use a ration to solve the answer. the side length 9 is the length that is similar to side length 21, so you put those in a fraction format (9/21), and side length 3 is similar to side length x so you put those in a fraction (3/x), and then you create a ration with those
9/21=3/x
now you can cross-multiply 21 times three (63) and divide that number by 9 (7) to get your final answer of x=7.
Hope this helps!
Answer: There are infinitely many solutions.
Step-by-step explanation:
Given, Two lines, A and B, are represented by the following equations:
Line A: 3x + 3y = 12
Line B: x + y = 4
By comparing to the equations 
and 
respectively , we have
Now , 
i.e. 
It implies the gives lines are co-incident (linearly dependent).
That means it has infinitely many solutions.
So, the correct answer is "There are infinitely many solutions.".
