well if you see any number that is could be written as a fraction is rational. square root of 9 is 3, but in this case the square root of 2 is irrational, so it is a irrational number.

3 0

2 years ago

Which one of the following is not a way to represent the solution of the inequality 2(x-1)>-12

Artemon [7]

2x-2>-12
2x>-10
x>-5
hope this helps!

4 0

3 years ago

Solve for x: 150=50e^7x

Mademuasel [1]

Answer:

Step-by-step explanation:

$150 = 50 {e}^{7x} \\ 50{e}^{7x} = 150 \\ {e}^{7x} = \frac{150}{50} \\ {e}^{7x} = 3 \\ ln{e}^{7x} = ln(3) \\ 7x = ln(3) \\ x = \frac{ ln(3) }{7}$

7 0

2 years ago

Nikki just exercised for 180

skelet666 [1.2K]

Answer:

108

Step-by-step explanation:

Not the greatest way, but I divide 180 by five (to get how much each 1/5 equals), which is 36. Then I multiply 36 times 3 (which is how many fifths that were used) and you get 108.

8 0

2 years ago