Math Answers

Find the polar coordinates of P if the rectangular coordinates are (-1,-2). 0 ≤ θ ≤ 2π

A company is planning to make an investment of $100,000 in a Machine. The
company’s analyst had estimated that the useful life of the Machine is 5 years and
that each year (from Year 1 to Year 5), the company will receive a net income of
$35,000 from this investment. The acceptable cost of capital is assumed to be 10%
p.a. Calculate:
a)The net present value (NPV) of this project/investment plan.
b)The internal rate of return (IRR) of this project/investment plan

A company is planning to make an investment of $100,000 in a Machine. The
company’s analyst had estimated that the useful life of the Machine is 5 years and
that each year (from Year 1 to Year 5), the company will receive a net income of
$35,000 from this investment. The acceptable cost of capital is assumed to be 10%
p.a. Calculate:
(a) The payback period of this project/investment plan?

A=BL+12j-8k
B=9l-3k-2k
C=8l+17j-7k
Find:::
1.A×B
2.C×[A×B]
3.D×[ c×(A×B)]
4.A{D×(A×B)}
5.C.D
6.A.B
7.|D|
8.|A×D|
9.|D×B|g
10.(A×B).(C×D)

Find the mean and the standard deviation of the set of numbers 5, 8,8,9,14,18,100.

To obtain Grade A, Gumede must achieve an average of at least 75 in six tests. If his average mark for the first five tests is 73, what is the lowest mark he can get in his test and still obtain Grade A?

To obtain Grade A, Gumede must achieve an average of at least 75 in six tests. If his average mark for the first five tests is 73, what is the lowest mark he can get in his test and still obtain Grade A?

Find the mean and the standard deviation of the set of numbers 5, 8,8,9,14,18,100.

Let R = {(2, 2), (2, 4), (3, 3), (3, 6), (3, 12), (4,2), (6, 3)}
where if a is a factor b}

(i) Draw the digraph for the relation P.
(ii) Find the domain and range of the relation.

Find the dimensions of the rectangle of largest area that has its base on the
x-axis and its other two vertices above the x-axis and lying on the parabola
y = 12 - x2