<span>=<span><span><span>3*3</span>*3</span>*3
</span></span><span>=<span>3^4
</span></span><span>=<span>81
81 is the answer</span></span>
Yes it does, the number of wheels is dependent on the number cars, and each number of wheels will only correspond to one number of cars.
Number Line:
Closed Circles are used when signs are "≤" or "≥"
Open Circles are used when signs are "<" or ">"
The graph of x > -1 on a number line would be towards the right from -1 with open circle as the sign is ">"
Graph should look like this:
Answer:
x = 17
Step-by-step explanation:
1) Make the bases the same then rewrite.
4 = 2²
2^2(2x - 5) = 2^3x + 7
2) Since the bases are the same, set the exponents equal to each other.
2(2x -5) = 3x + 7
4x - 10 = 3x + 7
4x - 3x = 7 + 10
x = 17