Denise buys flour in bulk for her bakery. The cost per pound of flour is graphed below. Which BEST describes the function of the
cost of flour ever the interval [0,15]?
A, a piece-wise function with separate pieces of linear functions only
B, a step-function for the entire interval
C, a single linear function with a three point of discontinuity
D, a piece-wise function with separate pieces of linear and step-functions
A, a piece-wise function with separate pieces of linear functions only
B, a step-function for the entire interval
C, a single linear function with a three point of discontinuity
D, a piece-wise function with separate pieces of linear and step-functions
1 answer:
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Answer: 8.76%
Step-by-step explanation:
The formula to find the simple interest is given by :-
, where P is the principal amount, r is rate of interest () in decimal and t is the time ( in years). (1)
Given : Justin deposited $2,000 into an account 5 years ago.
i.e. P = $2,000 , t= 5 years
He has just withdrawn $2,876. i.e. Future value = $2,876
Interest (I)=$2,876-$2,000=$876 [Subtract Principal value from Future value]
Substitute all the above values of P , t , and I in the formula (1) , we get
In percent ,
Hence, the rate of interest = 8.76%
with "k" being the "constant of variation"
so. hmm in this case is "w" inversely varying to the square of the distance or d²
thus
solve for "k", to see what the constant of variation is
and plug it back in
now.. .to find her weight when she's 144miles above the surface, well
that's just
and since you already know what "k" is, just divide and simplify away, to get "w"