Answer:
The top one is refraction
Refraction is the bending or change in angle of light
Hope this helps (sorry I don’t have the answer to the second question)
Answer:
Step-by-step explanation:
Substitute 4x for Y: 4x = -2x -6
Now add 2x to both sides
(due to reciprocal, the opposite of -2x is positive 2x): 4x + 2x = -2x +2x -6
Add common like terms
(4x + 2x = 6x and -2x + 2x cancel out leaving -6 alone): 6x = 6
Now get X alone by dividing the 6 to both sides: 6x/6 = -6/6
Since you're dividing a negative and a positive, the outcome will be a negative so the answer is: X= -6
Hope this helps :)
Answer:
10 - B = U
Step-by-step explanation:
U stands for the unopened bottles
for example if they opened 3 bottles it would be 10 - 3 = U (unopened bottles)
The value of U is 7 because the 10 bottles of water minus the 3 bottles they opened it would equal 7.
therefore the equation 10 - B = U shows the amount of unopened bottles
Answer:
P-value = 0.00028
Step-by-step explanation:
The statician performs an hypothesis test for the mean difference.
As the alternative hypothesis is<em> Ha: μd ≠ 0</em>, we know that it is a two-tailed test.
The test statistic is t=6.163.
For a two-tailed test and 8 degrees of freedom, this corresponds to a P-value of:
This P-value is smaller enough to reject the null hypothesis at almost any significance level.
