Answer:
125
Step-by-step explanation:
log2 (24) - log2 (3) = log5 (x)
We know that log a(b) - log a(c) = log a( b/c)
log2 (24/3) = log5 (x)
log2 (8) = log5 (x)
Rewriting 8 as 2^3
log2 (2^3) = log5 (x)
We know that log a ( a^b) = b loga (a) and loga (a) =1
3 log2 (2) = log5 (x)
3 *1 = log5 (x)
3 = log5 (x)
We know log a (b) =c can be written as a^c =b
5^3 = x
125 =x
Use PEMDAS:
Parentheses
Exponents
Multiply and Divide from left to right.
Add and Subtract from left to right.
-------------------------------------------------------
Evaluate the exponents.
2^2+4^2/2^2
Divide from left to right.
4 + 16/4
Add from left to right.
4 + 4
Solution.
8
There are 4 boys and 7 girls with a total of 11. Now, how many 4 persons group combinations are possible.
=> 1 boy and 3 girls
=> 2 boys and 2 girls
=> 3 boys and 1 girl
Thus, there are 3 possible combinations that might happen.
The answer is <span>A.0.5 moles
</span><span>a mole of sodium chloride weighs approximately 58 grams: 1 M - 58 g
</span><span>you have 29 grams of sodium chloride, how many moles of sodium chloride do you have: xM - 29g
1 M : 58g = x : 29 g
x = 1 M : 58g * 29 g = 0.5 M</span>
