Answer:
10^5 = 100000
Step-by-step explanation:
✌️❤️✌️
....
Answer:
8+y
Step-by-step explanation:
Sum means that you are adding the constant 8 and the variable y.
Hope this helps!!
1)
x^2 + 4 = 0 Subtract 4 from each side
x^2 = -4
You cannot square a number to get a negative number. No real solution. (If you have learned about imaginary numbers, answer is 2i)
2)
<span>x^2+x-6=0 Factor. 3 and -2 add up to 1, and multiply to -6
(x+3)(x-2) = 0
Zero Product Property: Which numbers would put a zero in one of the parentheses?
x = -3 or x=2
3) </span><span>x^2-6x+7=0
Completing the Square:
Take half of b (-6), square it, and add/subtract that coefficient
x^2 - 6x + 9 - 9 + 7 = 0
(x -3)^2 - 2 = 0 Add 2 to both sides
(x-3)^2</span> = 2 Take the square root of both sides
<span>(x-3) = </span>√2 or -√2 Add 3 to both sides
<span>x = 3 + </span>√2 or 3 - √2<span>
</span>
Answer: Values are unusual : $1774 and $606
Very unusual value = $606
Step-by-step explanation:
According to the empirical rule, when data is normally distributed (bell-shaped) then the values that are two standard deviations from the mean are unusual.
Given data: $1616 $1774 $1309 $606 $1470 $1542
Mean : and Standard deviation:
The range of the values lies within from mean .
The values are unusual (i.e. more than two standard deviations from the mean) = $1774 and $606
The range of the values lies within from mean .
The values are very unusual (i.e. more than three standard deviations from the mean) = $606