Answer:
x^2 -10x - 15 = 0
(don't know how far you want me to go)
Step-by-step explanation:
(x - 5)^2 = 40
(expand the brackets)
(x - 5)(x - 5) = 40
x^2 -5x -5x + 25 = 40
x^2 -10x + 25 = 40
x^2 -10x - 15 = 0
Answer:
The null hypothesis is that the most important goal and gender are independent, and the alternative is that they are dependent.
Step-by-step explanation:
Chi Square test is used to test relationship between categorical (nominal) variables of a population. Eg : Testing men & women for any attribute, lets say empathy
- Null Hypothesis states that there is no relationship between the attribute & categorical variable, they are independent.
- Alternate Hypothesis states that there is relationship between the attribute & categorical variable, they are dependent.
Eg : Null hypothesis states that there is no difference of empathy level in men & women. Alternate Hypothesis states that there is difference of empathy level in men & women.
Answer:
Area = 40x + 15 squared units.
Step-by-step explanation:
Area of a rectangle = Length × width
Answer:
The answer is 3 units apart.
Step-by-step explanation:
The points are (1,9) and (4,9). The y-coordinates are the same. The x-coordinates are different. To find the difference between them, you must subtract them. 4-1=3, so the points are 3 units apart!
