An irrational number is a number that cannot be expressed as a fraction for any integers
For example:
Square root of 9
Square root of 36
Pi
Answer:
So the probability of drawing a second red marble is 8 out 10 or 0.8.
Step-by-step explanation:
It seems to me that if one red marble is already gone, there are 8 red marbles left out of a total of 10 marbles.
So the probability of drawing a second red marble is 8 out 10 or 0.8.
Answer: Choice D
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Explanation:
Abbreviations:
sec = secant
cot = cotangent
cosec = cosecant (csc is also a widely used abbreviation)
Let's go through the answer choices one by one
Choice A is false because secant involves the hypotenuse
Choice B is false because opposite/adjacent is the ratio for tangent
Choice C is false because cosecant (csc) involves the hypotenuse
Choice D is true. This is the proper ratio for secant. It is the reciprocal of the ratio for cosine. Recall that cosine's ratio is adjacent/hypotenuse.
The correct equation is f(x)=x+41
The linear equation has a slope of 1 and an y intercept of 41.
To Make sure the equation is true we can plug x=5 into the equation to get 46 for the y value. The equation is correct because 5,46 is a solution to the equation and it is a point on the line.
Let r represent the radius of cylinder.
We have been given that the height of a right circular cylinder is 1.5 times the radius of the base. So the height of the cylinder would be 
.
We will use lateral surface area of pyramid to solve our given problem.
, where,
LSA = Lateral surface area of pyramid,
r = Radius,
h = height.
Upon substituting our given values in above formula, we will get:
Now we will find the total surface area of cylinder.
Therefore, the ratio of total surface area to lateral surface area is 
.
