X = 21
ABC has a scale factor of 3, so each value is x3
7x3 = 21
Answer:
A:
Step-by-step explanation:
***I'm pretty sure A should read "NO, because the test value 1.257 is less than the critical value 1.782. Please check the wording of the problem***
H0 : μ ≤ 400
Ha : μ > 400 (claim)
Sample mean: 6,155/13
Sample standard deviation: √44422.4359
Critical test value:
t > 1.782
t = (6,155/13 - 400)/[(√44422.4359)/√13] = 1.257
1.257 < 1.782 ; we fail to reject the null hypothesis
There is not enough evidence at the 5% level of significance to support the claim that the mean battery life is at least 400 hours.
Answer:
D) 252.00
Step-by-step explanation:
Initial price of computer = $400
Less 30 % = -0.30 × 400 = - 120
Sale price = 280
Less 10 % = -0.10 × 280 = -28
Final price = $252
Is 0.14 equivalent to a. 8/12, b. 5/8, c. 2/3, d. 7/50, e. 4/5, f. 5/3, g. 19/25, h. 1/3, i. 2/9, j. 1/33, k. 4/9
aivan3 [116]
Answer:
7/50
Step-by-step explanation:
7 divided by 50 equals 0.14 in decimal format.
Answer:
R(1.6, 0)
Step-by-step explanation:
Use the formula, 
to find the coordinates of point R, that partition the lie segment AB into the ratio 1/5.
Let,
Thus, plug in the values as follows:
The coordinates of point R, are (1.6, 0)
