Answer:
3x - 4 = -2x + 3
3x + 2x = 3 + 4
5x = 7
x = 5/7
Step-by-step explanation:
1. move the same term to one side
2. the rest are simply solving equation
Answer:
B
Step-by-step explanation:
In this question, we are told to calculate the height after the third bounce. From the question, we are made to know that x represents the bounce number.
Thus, mathematically we just plug the value 3 into the exponential equation.
f(x) = 4.5(0.65)^x
f(3) = 4.50(0.65)^3 = 1.2358125 which is approximately 1.24
Rise/Run(rise over run) so basically 7/15 m8
Using a calculator, we see that
-1/2 = -0.5
-1/3 = -0.333 approximately
So saying "some number between -1/2 and -1/3" is roughly the same as saying "some number between "-0.5 and -0.333". Choice A can be ruled out because -0.53 is not between -0.5 and -0.333. Choice B can be eliminated for similar reasons. The same story happens with choice D as well.
The only possible answer is choice C. The values -0.4 and -0.454545... are between -0.5 and -0.333... so that helps confirm the answer