A(t) = A 0 e -0.000002t
A (t) 20
A0. 80
T time in years?
20=80 e -0.000002t
Solve for t
20/80=e -0.000002t
Log (20/80)=log (e)×-0.000002t
T=(log(20÷80)÷log(e))÷(−0.000002)
T=693,147 years
One percent of 540 is 5.4 (540\100) now divide 567 by that number which gives you 105% take the original 100% away, it's an increase of 5%
Answer:
The correct answer is option B
Step-by-step explanation:
The general form of inverse variation between the variables x and y is as following:
where c is constant
option A : y = x/12 ⇒ x = 12y (wrong option)
option B : y = 12/x ⇒ y * x = 12 (correct option) and c will be equal 12
option C : y = x + 12 ⇒ not similar to the general form (wrong option)
option D : y = 12x (wrong option)
So, the correct option is B
Assuming angle a and angle b are not equal and the given triangle is a right triangle .
Let's see cos(90-b)
Here we use the formula of cos(A-B)=cos A cos B -sin A sin B
And on using this formula,we will get
cos(90-b)= cos 90 cos b + sin 90 sin b
Value of cos 90 = 0 and sin 90 =1 , And on using these values, we will get
cos(90-b) = (0) cos (b) + (1) sin (b)
cos(90-b) = 0 + sin (b)
cos(90-b) =sin(b)
As we see that on using the formula, we are getting cos(90-b)= sin b .
So the correct option is cos(90-b)= sin b
6. Find the average of the middle 80% of the
following series: 3,7, 39, 41, 57, 84, 91, 95, 110,
144
070.5
067.1
O52.5
057
O 65.5