1) you can expand the brackets, simplify, set the equation = 0 and then do a double bracket factorisation.
2)
therefore Josh's solution is wrong asx = 7 and x= -1
6x^2 -9x -2 just add common variables
Answer:The rate of the slower hiker is 2.2 mph and the rate of the faster hiker is 5.5 mph
Explanation:
One hiker walks 3.3 mph faster than the other.
Suppose, the speed of the slower hiker is mph.
So, the speed of the faster hiker will be:
Both hikers are walking toward each other and meet in 10 hours.
We know that,
So, the distance walked by the slower hiker in 10 hours miles and the distance walked by the faster hiker in 10 hours
miles.
Given that, they were 77 miles apart in the beginning. So the equation will be
Answer:
equal to 1
Step-by-step explanation:
9 x 1/9 = 9/9 = 1
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-Chetan K
Answer:
Step-by-step explanation:
1. Chaos Theory
2. Law of Gravity
3. Fourier Transformation
4. The Square Root of -1
5. Logarithms
6. Maxwell Equations
7. Black-Scholes Equation
8. Navier-Stokes Equation
9. Normal Distribution
10. Euler’s Polyhedra Formula
11. Pythagorean Theorem
12. Calculus
13. Theory of Relativity, Mass–Energy Equivalence