9514 1404 393
Answer:
The CPI increased 3.42% in Month 2.
Step-by-step explanation:
In a spreadsheet, the weighted sum is easily computed using the SUMPRODUCT( ) function. It multiplies the corresponding values of two arrays, then returns the sum of those products. If one of the values is a weight, then the result is a weighted sum.
Your CPI is computed as the weighted sum of the prices of the individual products. The percentage change is computed in the usual way:
pct change = ((new value)/(old value) -1) × 100%
Of course, the spreadsheet can format a fraction as a percentage, so the computation of the change can stop after 1 is subtracted from the ratio.
Just multiply them.
A = $275 x $0.09 x $4
A = $99
Answer:
Equation: 4x - 6 = -46
Solution: x=10.
Step-by-step explanation:
The difference between four times a number and six translated into a equation is: 4x - 6 = -46.
Solving for 'x'we have:
4x = -46 + 6 ⇒ 4x = -40 ⇒ x = 10.
Then, the solution is: x=10
, so I assume you mean "find ".
We can rewrite this as an implicit equation to avoid using too much of the chain rule, namely
Differentiate both sides with respect to using the product and chain rules.
Now substitute the original expression for .
Now, since
we can write
Focusing on the rational expression in , we have the partial fraction expansion
where we have the constant term on the right side because both the numerator and denominator have degree 3.
Writing everything with a common denominator and equating the numerators leads to
and it follows that