To find the inverse of a function, replace x and y in the equation and solve for y. In our case...
x=2y-10
x+10=2y
y=x/2+5
This is a lesson in order of operations...
PEMDAS- parentheses, exponents, multiplication, division, addition, and subtraction... That is the order in which you have to proceed during any math problem..
Your question gives an excellent example of why.
8x3+4=
in this question, we would do multiplication then addition for the answer...
24 + 4 = 28
Now the other one
8 x (3+4) =
in this expression, we would do what is inside the parentheses first, the addition. Then we would multiply...
8x 7 = 56
You see we have the same numbers and we are performing the same operations, but the difference is in the order that we perform them. As you can see it does make a difference because we get a different result.
28 vs 56
Answer:
The possible answers are
15
-8
2
Step-by-step explanation:
The answer is 8.
640 / 80 =. 8
80 x 8 =. 640
Answer:
rectangles are similar figures, thus if scaled copies of each other then the ratios of corresponding sides must be equal
compare ratios of lengths and widths
rectangles A and B
k = = ← ratio of lengths
k = = ← ratio of widths
scale factors are equivalent, hence rectangle A is a scaled copy of B
rectangles C and B
k = = ← ratio of lengths
k = = ← ratio of width
scale factors (k ) are not equal, hence C is not a scaled copy of B
rectangles A and C
k = = ← ratio of lengths
k = ← ratio of widths
the scale factors are not equal hence A is not a scaled copy of C
Step-by-step explanation:
