Answer:
second option
Step-by-step explanation:
Under a rotation about the origin of 90°
a point (x, y ) → (- y, x )
Best gets brainly ,,,,,,,,,,,,,,,,,,,,
DochEvi [55]
Answer:
see explanation
Step-by-step explanation:
A
= 3
Since 3 × 3 × 3 = 27
B
= ± 5
Since 5 × 5 = 25 and - 5 × - 5 = 25
C
= ± 9
Since 9 × 9 = 81 and - 9 × - 9 = 81
D
= 1
Since 1 × 1 × 1 = 1
Answer:
D
Step-by-step explanation:
When the population standard deviation is unknown while constructing the confidence interval then the estimate of standard deviation calculated from sample is used and due to this the new type of variability arise and then for conducting a confidence interval for mean the t-distribution is used. For calculating confidence interval for mean there are two sampling distributions z distribution and t distribution. When sample size is small and population standard deviation is unknown then t-distribution is used.
21X_15 :-) :-) :-)!!!!! There you go!
Smallest side that is opposite the angle is the smallest angle so this would be D for the answer!