Answer:
2 (Whatever you time measurement is)
Step-by-step explanation:
730x.04=29.2x2=$58.4
Answer:
Step-by-step explanation:
We are given that:
Where θ is in QIV.
And we want to find the value of tan(θ).
Recall that cosine is the ratio of the adjacent side over the hypotenuse.
Therefore, the opposite side is:
Next, in QIV, only cosine is positive: sine and tangent are both negative.
Tangent is the ratio of the opposite side to the adjacent. So:
Substitute. Tangent is negative in QIV. Hence:
Answer:
36
Step-by-step explanation:
First you would solve what's in the parenthesis because the Order of Pemdas.
Second you would multiply the answer of what's in the parenthesis which is 3 to 12.
Third you would get the answer which is 36!
Answer:
(52.30 ; 52.62)
Step-by-step explanation:
Given :
Sample size, n = 20
Mean, xbar = 52.46
Standard deviation, s = 0.42
We assume a t - distribution
The 90% confidence interval
The confidence interval relation :
C.I = xbar ± Tcritical * s/√n
To obtain the Tcritical value :
Degree of freedom, df = n - 1 ; 20 - 1 = 19 ; α = (1 - 0.90) /2 = 0.1/2 = 0.05
Using the T-distribution table, Tcritical = 1.729
We now have :
C.I = 52.46 ± (1.729 * 0.42/√20)
C. I = 52.46 ± 0.1624
C.I = (52.30 ; 52.62)
D/dx(xcosx)+d/dx(2tanx)
= (1*cosx + x*(-sinx) + 2sec^2(x)
= cosx - xsinx + 2sec^2(x)
