A programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99% confident that his estimate is in error by no more than five percentage points? Complete parts (a) through (c) below. a) Assume that nothing is known about the percentage of computers with new operating systems. n = (Round up to the nearest integer.)

Q: Solve for x and y.

A: We use multiplication operation on matrix and use equality of mattix

Q: -0.50 1.00 а) 0.60 -100 -0.50 b) 0.60 100 -1.00 -0.50 1.00 c) 0.60 -1.00 -0.50 1.00 d) 60 -1.00

A:

Q: Find 2x² +5x+1 -dr, x>0

A: Use the formulas below to evaluate the given integral.

Q: Solve the following quadratic equation for all values of x in simplest form. 6 – a? = -8

A:

Q: Solve for A.

A: This means that the product of matrix A with another matrix given an identity matrix. Therefore the…

Q: Solve for x. 2x - 2, x +5

A:

Q: solve for b a=1\2bh

A: We will find the value of b in terms of a and h as following .

Q: Solve.  3x2+5x-2=0

A:

Q: Please solve all parts.

A:

Q: Solve for x 6=7+x-4

A: Solve for x 6 = 7+x-4

Q: Find the value of the determinant. |-2 -4 -4 3 -1 -2 2 2-5

A:

Q: olve accordingly

A: we can see that the graph touches at 4 places on the x-axis.

Q: z+3 + 27 f(2) = To graph y = f(z) how should we transform the graph of y = Domain Range

A: As you have posted questions containing more than 3 sub parts .I am solving first 3 sub parts .Re…

Q: 3. 3r+ Sy - 2: = 52 4r+ 7y +a= SI -2r- 9y + Sa--53

A:

Q: f 3 +4 F 27/-1)dt +

A:

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.