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Composition of functions |
2019-02-24 |
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From Joshua:
Let g(x)=(x)^(2)+x-1
Find such a function f such that
(fog)(x)=(x)^(4)+2(x)^(3)-3(x)^(2)-4x+6
Answered by p. |
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A word problem |
2019-02-24 |
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From Briana:
When 4 times the number increased by 30, the answer is the same as when 70 decreased by the number. What was my number?
Answered by Harley Weston. |
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Loan payment formula |
2019-02-24 |
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From Kenneth:
I have a question regarding the loan payment formula shown below.
Calculating the Payment Amount per Period
The formula for calculating the payment amount is shown below.
Simple Amortization Calculation Formula
A = P X r(1 + r)n over (1 + r)n - 1
where
A = payment Amount per period
P = initial Principal (loan amount)
r = interest rate per period
n = total number of payments or periods
Is this formula/calculation a condensed version of a longer calculation? I am curious to know how the (1 +r)n - 1 was developed from the longer calculation. For example, r(1 + r)n may have been (r + rn)n. The n's are exponents.
I thank you for whatever helpful explanation that may be provided.
Kenneth
Answered by Harley Weston. |
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The Polynomial Remainder Theorem |
2019-02-23 |
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From pasandi:
f(x) is a quadratic polynomial. when f(x) is divided by
(x-1),(x-2) & (x+2) the remainders respectively are -1, 4 and 2 how to find the f(x) in a question like this?
Answered by Penny Nom. |
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An arithmetic sequence |
2019-02-23 |
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From Dalal:
If x+1 and -x+17 are the second and sixth term of a sequence with a common difference of 5, what's the value of x.
Answered by Penny Nom. |
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Adding and multiplying two numbers |
2019-02-13 |
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From katie:
what 2 numbers add to get 7 and multiply to get 2?
Answered by Penny Nom. |
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Margin with commission as part of selling price |
2019-02-13 |
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From Anni:
I need to find selling price to put us at 24% margin.
15% commission is based on selling price and is included in our cost.
I'm trying to do it excel and keep getting a circular reference.
Total cost= cost + commission (15% of selling price)
Selling price=total cost + 24% margin
Answered by Penny Nom. |
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Factoring n^2+3n-270 |
2019-02-11 |
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From Ashley:
n^2+3n-270
Answered by Penny Nom. |
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A linear equation |
2019-02-11 |
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From Nick:
What's a linear equation?
Answered by Penny Nom. |
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5 numbers from 9 numbers |
2019-02-11 |
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From John:
How many combinations of 5 numbers be created with 9 numbers?
Sample: 1,4,7,9,12. Question the same with combination of 4 from 12?
Thanks, John
Answered by Penny Nom. |
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A cylindrical drum |
2019-02-10 |
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From Ronald:
I have a cylinder that is 32 inches round by 25 inches deep how much water can it hold
Answered by Penny Nom. |
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The exponential form of sqrt(13) |
2019-02-10 |
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From isaebl:
what is the exponential form of sqrt(13)
Answered by Penny Nom. |
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Function notation |
2019-02-10 |
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From Paige:
What is the difference between f(x+2) and f(x)+2?
Answered by Penny Nom. |
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Fractions with roots |
2019-02-06 |
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From DEBMALYA:
5/√2+√3 –1/√2–√3
Answered by Penny Nom. |
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An ice cream cone |
2019-02-05 |
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From Eyuel:
a scoop of ice cream has a 3-inch radius how tall should the ice cream cone at the same radius be in order to contain all of the ice creams inside the cone
Answered by Penny Nom. |
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