Answer: 30 dominoes in total.
Step-by-step explanation:
Each line is 21 inches long.
the space between dominoes is 1 + 1/2 inches.
(assuming that the distance includes the domino itself) Now, we need at least two dominoes to see this distance,
The we have N + 1 dominoes per line, and the distance is:
N*(1 + 1/2)inches = 21 inches
If we find N, we can find the number of domineoes in each line:
N = 21/(1 + 1/2) = 14
This means that we have 14 + 1 = 15 dominoes in each line, and we have two lines, so we have 30 dominoes in total.
12 = 2/3(x - 3)
<em><u>Distributive property.</u></em>
12 = 2/3x - 2
<em><u>Add 2 to both sides.</u></em>
14 = 2/3x
<em><u>Multiply both sides by 3.</u></em>
42 = 2x
<em><u>Divide both sides by 2.</u></em>
21 = x
The value of x is equal to 21.
Hey there!
The actual answer for the problem would be 
The answer is not 
So, this make this statement 
Good luck on your assignment and enjoy your day!
~
Answer:
x = -2
Step-by-step explanation:
Subtract the 8 from both sides
5x = -10
And divide 5 from both sides
x = -2
Answer: x + 5
<u>Step-by-step explanation:</u>
f(x) = x² + 5 g(x) = √x
f(g(x)) = (√x)² + 5 (replaced the x in f(x) with √x)
= x + 5
