Solving for c:
Start with
add 1500+2w to both sides:
Divide both sides by w:
Prize to break even:
If they break even, the profit is zero, and since we know that w=800, the cost is
Answer: Option 'A' is correct.
Step-by-step explanation:
Since we have given that
Number of coins at the end of March = 2018 coins
Average of coins per month from January to October = 52
Total sum of coins from April to October will be
So, the number of coins Ted had at the end of October is given by
Hence, there are 2382 coins at the end of October.
Therefore, Option 'A' is correct.
Answer: 24.67 ≤ μ ≤ 27.33
Step-by-step explanation:
From the information given: n = 81 students, Sample mean (x bar) = 26 and sample standard deviation (s) = 6.
Since the population standard deviation in unknown we use the student t distribution to estimate the mean. The mean is estimated as follows:
X bar - t (∝/2, n-1) x s/sqrt n ≤ μ ≤ X bar + t (∝/2, n-1) x s/sqrt n
Degrees of freedom, df = n - 1 = 81 - 1 = 80
∝ = 100 - 95 = 5% = 0.05 thus ∝/2 = 0.025
From the t distribution t (0.025,80) = 1.990
Substituting into the formula:
26 - 1.990 x 6/sqrt 81 ≤ μ ≤ 26 + 1.990 x 6/sqrt 81
24.67 ≤ μ ≤ 27.33
Formula:
W = Fd; d = W/F = 150 J/100
Answer:
N = 1.5 m
(A brainliest would be appreciated :) )
C. 14•8 over 2.
A= bh over 2