Answer:
750=4x-400 im not sure if its right or not
Answer:
Option B - There is at least some difference in the average times spent by the two groups in the mall.
Step-by-step explanation:
A null hypothesis is a hypothesis that states that there is no statistical significance between the two variables. Thus, It is usually the hypothesis that a researcher or experimenter will try to disprove or discredit. While an alternative hypothesis is one that states there is a statistically significant relationship between two variables.
Now, applying these definitions to the question, we can see that;
Null Hypothesis is;
H0; There is no difference in the average times spent by the two groups in the mall
While the alternative hypothesis is;
Ha; There is at least some difference in the average times spent by the two groups in the mall
Thus, correct answer is option B
Answer:
sqrt(3) /3
Step-by-step explanation:
1 / sqrt(3)
Multiply the top and bottom by sqrt(3)
1/ sqrt(3) * sqrt(3)/ sqrt(3)
sqrt(3) / sqrt(3)*sqrt(3)
sqrt(3) /3
Answer:
You basically have to subsitute 4 in the x's place. where ever there is a x you would put a 4 and what ever answer you end up would go into the box.
Step-by-step explanation:
Short Answer P(6/5,y) = P(1.2,y)
RemarkThis problem is solved by a formula known as the section formula. If you want to divide a line into any ratio other than 1:1, this formula will do it for you.
GivensLine segment with endpoints (-4,-8) and (9,3)
y2 = 3
y1 = -8
x2 = 9
x1 = - 4
m=2
n = 3
Desired ratio
m = 3
n = 2
m:n = 3:2
FormulaP(x,y) =
Sub and SolveP(x,y) =
![\frac{2*9 + 3*(-4}{2 + 3}, \frac{2*3 + 3*(-8)}{2 + 3} ](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%2A9%20%2B%203%2A%28-4%7D%7B2%20%2B%203%7D%2C%20%5Cfrac%7B2%2A3%20%2B%203%2A%28-8%29%7D%7B2%20%2B%203%7D%0A%20%20)
P(x,y) =
![\frac{18 - 12 }{5} , \frac{6 - 24}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B18%20-%2012%20%7D%7B5%7D%20%2C%20%20%5Cfrac%7B6%20-%2024%7D%7B5%7D%20%20)
P(x,y)
conclusionThe point you want is
P(6/5,-18/5) If you measure the length with a ruler, you should see that the ratio the line is cut into is 2 : 3
Note: This question all depends on where you start from and what you call (x1,y1) and (x2,y2). Be prepared to argue the point if this answer is incorrect. Point C on my graph is the answer.