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3 years ago

What is the sum of the

1 answer:

8 0

Well first the formula for finding exterior angles is (n-2)180

n is the number of angles, so if u have fifteen sides you do (15-2)180

13 x 180 = 2340

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The distance between Henry's house and his school is 648 feet. How many yards are equivalent to 648 feet?

vlabodo [156]

Answer:

216 yards

Step-by-step explanation:

There are 3 feet in a yard, so the number of yards is equal to the number of feet divided by 3.

648/3 = 216

5 0

3 years ago

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A car increases, then decreases, its speed. Which table could represent the speed of the car?

gulaghasi [49]

Answer:

B is ur answer

Step-by-step explanation:

6 0

2 years ago

Tape diagram to subtract 33-19

Tpy6a [65]

Well 33 - 19 = 14 and what do u mean tape diagram?

3 0

3 years ago

Find the savings plan balance after 2 years with an APR of 4% and monthly payments of $250. The balance is $ (Do not round until

alexdok [17]

Answer:

$6,506.51

Step-by-step explanation:

Recall that increasing an amount C in x% is equivalent to multiply it by (1+x/100)

As we have 4% APR, the monthly interest would be (4/12)% = 0.04/12

Month 0 (first payment)

$250

Month 1

$250 + 250 \frac{0.04}{12}= 250(\frac{12.04}{12})$

Month 2

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2)$

Month 3

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3)$

Month 24 (2 years)

$250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24})$

The sum

$1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24}$

is the sum of the first 24 terms of a geometric sequence with common ratio $\frac{12.04}{12}$ which is

$\frac{1-(12.04/12)^{25}}{1-(12.04/12)}=26.02603071$

so, after 2 years the saving balance is

250*26.02603071 = 6,506.50767= $6,506.51 rounded to the nearest cent.

6 0

3 years ago

If Emily eats 12 cookies, which represents 25% of the bag, then how many cookies are in the bag, after she ate the cookies

dangina [55]

Answer:

Step-by-step explanation:

12 cookies = 25% of bag

25% x 4= 100%

12 x 4 = 48

48-12=36 cookies left

3 0

3 years ago

Read 2 more answers