The first step for solving this equation is to write

in exponential form with a base of 5.

=

Write

in exponential form with a base of 5.

=

Since the bases on both sides of the equal are the same,, set the exponents equal.
2x + 4 = -4x
Move the constant to the right side of the equation and then change its sign.
2x = -4x - 4
Now move the variable to the left side and change its sign.
2x + 4x = -4
Collect the terms with an x variable.
6x = -4
Lastly,, divide both sides of the equation by 6 to get your final answer.
x =

Let me know if you have any further questions.
:)
Answer:
5/8
Step-by-step explanation:
1/4 = 2/8
2/8 + 3/8 = 5/8
Answer:
49
Step-by-step explanation:
b^c
Let b = 7 and c = 2
7^2
7*7 = 49
The probability is 0.1587.
The z-score associated with this is found using the formula
z = (X-μ)/σ = (100-90)/10 = 10/10 = 1.0
Using a z-table (http://www.z-table.com) we see that the area to the left of, less than, this is 0.8413. We want the area greater than, so we subtract from 1:
1 - 0.8413 = 0.1587
4x^2 + x - 5 = 4x^2 + 5x - 4x - 5
Therefore, required solution is 5x and -4x.