Answer:
left 2 units, up 3 units
Step-by-step explanation:
(x-2, y+3)
-2 means 2 to the left
+3 means 3 up
So it would be left 2 units, up 3 units.
Answer:
Step-by-step explanation:
<em>See the attached</em>
All given details are reflected in the diagram (not to scale)
- PA is at 225°, PB is at 116°, BA is at 258°
- AB = 3.9 km
- AP = x
- m∠P = 225° - 116° = 109°
- m∠A = 258° - 225° = 33°
- m∠B = 180° - (109° + 33°) = 38°
<u>Use the law of sines:</u>
- x/ sin 38° = 3.9 / sin 109°
- x = 3.9 sin 38° / sin 109°
- x = 2.54 km (rounded)
170 divided by 4 = 42.5
42.5 divided by 5 = 8.5
Each babysitter earned 8.5 dollars an hour
Answer:
$14.00
Step-by-step explanation:
First take $20 and divide by 100. Then you multiply by 30 to get the reference which was $6. If the sweatshirt was $20 and the reference was $6, you would subtract $20 - $6 and get $14.
Question:
(A) The population variance must equal the population mean.
(B) None. The Central Limit Theorem makes any assumptions unnecessary.
(C) The population of delivery times must have a normal distribution.
(D) The sample mean delivery time must equal the population mean delivery time.
(E) None of the above
Answer:
The correct option is;
(C) The population of delivery times must have a normal distribution
Step-by-step explanation:
Here, we note that the pizza restaurant wants to test the possibility of starting to deliver pizzas based on comparison of the mean delivery time to a preferred mean and the outcome will aid the decision whether to reject the previous (null) assumption or hypothesis or to accept it.
Therefore, to meet the requirement of the investigation, the population of delivery times must be normally distributed or must have a normal distribution.
