Answer:
4
Step-by-step explanation:
d = |150 - 20t|
70 = |150 = 20t|
70 = 150 - 20t -70 = 150 - 20t
-80 = -20t -220 = -20t
4 = t 11 = t
Answer: 4, 11 seconds
Answer:
x = - 12 6/7
Step-by-step explanation:
x - 12x/5= 18
Get a common denominator on the left
5/5 x -12/5x = 18
Subtract
-7/5 x = 18
Multiply each side by -5/7 to isolate x
-5/7 *-7/5 x = -5/7 *18
x = -5*18/7
x = -90/7
Changing this to a mixed number
7 goes into 90 1 2 times with 6 left over
x = - 12 6/7
Answer:
hello your question lacks the required options attached is a picture of the complete question
One would expect about 5% of tests to be significant just by chance if the null hypothesis is true, and for 60 tests, this is 0.05(60) = 3 tests. This could explain why these tests are statistically significant.
Step-by-step explanation:
What is misleading about this is the study's final report because this marketing study was carried out with a level of significance of 5% (0.05) which means that if we carry the same study with varying sample data we will mostly like arrive at a conclusion against our null conclusion 5% of the time and this is not good for the the study because it is a type 1 error and has to be eliminated and it cannot be eliminated totally .
hence One would expect about 5% of tests to be significant just by chance if the null hypothesis is true, and for 60 tests, this is 0.05(60) = 3 tests. This could explain why these tests are statistically significant.
Answer:
x > 1
Step-by-step explanation:
-26 + 13x + 2 > 2 - 13x (Given)
13x - 24 > 2 - 13x (Add like terms)
26x - 24 > 2 (Add 13x on both sides)
26x > 26 (Add 24 on both sides)
x > 1 (Divide 26 on both sides)