Determine whether the point 1,5 is a solution to the system of inequalities below y>3x , y>/2x+1
Answer:
a) 1/27
b) 16
c) 1/8
Step-by-step explanation:
a)
One of the properties of the exponents tells us that when we have a negative exponent we can express it in terms of its positive exponent by turning it into the denominator (and changing its sign), so we would have:
And now, solving for x = 9 we have:
b)
This is already a positive rational exponent so we are just going to substitute the value of y = 8 into the expression
c)
Using the same property we used in a) we have:
And now, solving for z = 16 we have:
2nd one, hope this helps sorry if i am wrong
Answer:
Step 2 contains error in the given problem.
Step-by-step explanation:
Given expression is:
Step 1: identifying the LCM.
The LCM identified is 6.
This step is correct.
In the next step, we multiply the LCM with each term of the equation.
Step 2:
However,
In the given solution, the LCM is not multiplied with each term.
Hence,
Step 2 contains error in the given problem.
Answer:
X=7
(x - 3 )(x +5)
(x+3) (x-5)
X - 35
Step-by-step explanation:
(x + 1)2 = 16
Expanding , we have
2x + 2 = 16
2x = 16 - 2
2x = 14
X= 7.