Step-by-step explanation:
Angle ADB + Angle BDC = 90° (right angle)
Since Angle ADB = Angle BDC,
Angle BDC = 90° / 2 = 45°.
Answer:
x = 7.
Step-by-step explanation:
-18 = 6 (x - 10)
-18 = 6x - 60
6x = -18 + 60
6x = 42
x = 42/6 = 7.
Answer: probably
Step-by-step explanation:
1.8 TIMES 3 = 5.4. Therefore, the new price is 12.6.
Answer: 3.49
Step-by-step explanation:
When standard deviation is known then the test statistic for difference of two population means (independent population) is given by :-
Given :
Then , the value of the test statistic will be :-
Hence, the value of the test statistic = 3.49