Hi! hope this helped B(d) is a function of the number of days d since she opened the account.B(0) is the balance at day=0 now, since the length of segment OA is half of the length of segment OB, and the length of segment OB is proportional to the max balance, namely $400, then the segment OA is proportional to 400/2=200

5 0

3 years ago

Which represents the number of lines of symmetry that are possessed by a regular n-gon?

anastassius [24]

Answer:

Option B. n

Step-by-step explanation:

we know that

A regular polygon is a convex polygon whose angles are all congruent.The number of lines of symmetry in a regular polygon is equal to the number of sides a regular polygon has.

therefore

the answer is option B. n

8 0

3 years ago

Can someone help ple

svp [43]

Answer:

4 units

Step-by-step explanation:

the first dot and the last links at r

5 0

3 years ago

You invest 7500 into a mutual fund that is expected to earn 7% per year, how long will it take the fun to be worth 15000?

frozen [14]

Answer:

10.2 years

gain is $2,704.00

rate of return is 22%

Step-by-step explanation:

The it would take for mutual to double can be determined the future value formula as shown below:

=nper(rate,pmt,-pv,fv)

rate is the rate of return of 7% per year

pmt is the periodic amount placed in the mutual fund and it not applicable here

pv is the original amount invested which is $7,500

fv is the future worth of $15,000

=nper(7%,0,-7500,15000)=10.2 years

cost of shares=actual cost of purchase+broker's commission

=(800*$15.34)+$20=$12,292.00

gain on shares=sales proceeds-cost=(800*$18.77)-$20-$12,292.00=$2,704.00

rate of return=gain/original cost=$2,704.00/$12,292.00 =22%

5 0

3 years ago