X ^5 / X^3 = X^2 because of the law of the indices
What's there to answer homes
Answer:
Step-by-step explanation:
Given is the results of a hypothesis testing for sample mean with population mean.
(Two tailed test at 1% significance level)
Reason:Two tailed because confidence interval is (100,136) with mean =118
Significance level = 100-confidence level
Given that confidence interval is (100,136)
i.e. we can be 99% confident that if samples for large sizes are drawn from this population will have mean within this interval
In this case sample mean 88 does not fall within this interval
Hence our null hypothesis has to be rejected
Answer:
To answer X and Y, all you need is a little common sense and a little bit of algebraic thinking. -x can equal: -x = 0? -6?, etc. Y could equal: 3?, 6?, 12?, etc. But the answer will always no matter what number will be 6.
Answer:
(5x + 3)² + 3
Step-by-step explanation:
25x² + 30x + 12 =
= (25x² + 30x) + 12
How do we make 25x² + 30x into a perfect square?
25x² is the square of 5x, so our binomial that is squared will start with
(5x + ___)²
We need to find the number that is added to 5x inside the parentheses.
The middle term of the squared binomial is 2 times the first term times the second term.
2(5x)b = 30x
b = 3
The binomial is (5x + 3).
When we square it, the last term will be 9. We need to add 9 to 25x² + 30x to have a perfect square. Then we also need to subtract 9 to not change the value of the expression.
= (25x² + 30x + 9) + 12 - 9
= (5x + 3)² + 3