Sorry to hear that you already took the test. Here is how to do the problem:
2ˣ = 128
Let's take log base 10 of both sides.
For simplicity, we'll just use the symbol log to mean log₁₀
log (2ˣ) = log (128) Remember that log(yˣ) = x log(y)
x log (2) = log (128) Divide both sides by log(2) to get x by itself
x = log (128) ÷ log (2)
Answer:
2) -1
Step-by-step explanation:
it is easy
we have to first open the brackets, as it is ' - ' we have to change the sign to opposite of that of the number in the bracket and then solve it.
so the number 2 is having negative sign, we make it positive. this rule is applied only when there is a negative sign and a bracket is there.
-3-(-2)
-3+2
=-1
Going from top to bottom.
The first graph is labeled x≤−5.
The second graph is labeled x>5.
The third graph is labeled x≥−5.
The fourth graph is labeled x>5.
You can find All of these by graphing each inequality.
Answer: 323.5
Step-by-step explanation: times the 3.14 and 11inches and then rounded.
