Answer:
Option C.
Step-by-step explanation:
Note: It is given question and option "=" sing is missing. On some places it should be "=" instead of "=".
Consider the given equation is
Using properties of \logarithm we get
![[\because \log_ax=b\Leftightarrow x=a^b]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Clog_ax%3Db%5CLeftightarrow%20x%3Da%5Eb%5D)
The solution is x=5.
To check the solution, substitute x=5 in the given equation.
Therefore, x-5 is a true solution because .
Answer:
The other zeros are -2 and 3.
Step-by-step explanation:
As 1 is a zero then (x - 1) is a factor so we divide:
x - 1 )x^3-2x^2-5x+6(x^2-x-6
x^3-x^2
-x^2-5x
-x^2+x
-6x+6
-6x+6
...........
x^2 - x - 6 = 0
(x - 3)(x + 2)
x = -2, 3.
Answer:
x = 5
Step-by-step explanation:
6 + 8(x - 1) = 2(3x + 4)
We evaluate the numbers in the brackets first.
(8 × x = 8x, 8 × 1 = 8, 2 × 3x = 6x, 2 × 4 = 8)
6 + 8x - 8 = 6x + 8
The left hand side of the equation is not exactly simplified, so we will evaluate it further first.
(6 - 8 = -2)
8x - 2 = 6x + 8
Now we can start shifting the x and the numbers separately.
Note that when pushing 6x from the right side to the left side, it needs to change to a negative 6x and vice versa for -2 turning into +2.
8x - 6x = 8 + 2
Further evaluation
2x = 10
Now we can simply find x.
Note that for this, ×2 becomes ÷2 when it shifts from the left side to the right side of the equation.
x = 10 ÷ 2
Evaluate.
x = 5
Answer:
Devon use 
instead of 
in his reason. So, we can say that triangles are not similar.
Step-by-step explanation:
If two triangles are similar then their corresponding sides are proportional.
If triangle TUV and XYZ are similar, then
The reason given be Devon is
He use the correct concept, that the corresponding sides of similar triangle are proportional. But he use instead of in his reason.
Therefore his reason is incorrect. So, we can say that triangles are not similar.
Answer:
12-9=3
Step-by-step explanation:
