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Crank
2 years ago
15

2) Tara is trying to find the nth term of the arithmetic sequence 5,8,11, and 14…. Which expression can Tara use to find the nth

term? What is the 15th term of the sequence?
Mathematics
1 answer:
juin [17]2 years ago
4 0

Answer:

Below in bold.

Step-by-step explanation:

Nth term an = a1 + d(n - 1)   where a1 = term 1 and d = common difference.

Here a1 = 5 and d = 8-5 = 3.

So an = 5 + 3(n - 1)

15th term a15

=  5 + 3(15 - 1)

= 5 + 42

= 47.

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you secure a mortgage to buy a house with a loan of $140,000 at 8.5% for 20 years. answer the following questions about that loa
Yuri [45]

Answer:

  • monthly payment $1214.95
  • 1st month's interest $991.67
  • balance after 1st payment $139,776.72
  • 2nd month's interest $990.09
  • balance after 2nd payment $139,551.86

Step-by-step explanation:

The monthly interest rate is ...

  \dfrac{8\%}{12}=0.00708\overline{3}

a) The monthly payment is given by the amortization formula:

  A = Pr/(1 -(1+r)^-n)

where r is the monthly interest rate on a loan of amount P for n months.

  A = $140,000(0.0070833)/(1 -(1.0070833^-240)) = $1214.95

The monthly payment is $1214.95.

__

b) The amount to interest is the product of the remaining principal and the monthly interest rate.

 first month's interest = $140,000·0.0070833 = $991.67

__

c) The balance after the first payment is ...

  new balance = $140,000 +991.67 -1214.95 = $139,776.72

__

d) The amount to interest for the second payment is computed the same way:

  second month's interest = $139,776.72·0.00708333 = $990.09

__

e) The balance after the second payment is computed the same way:

  new balance = $139,776.72 +990.09 -1214.95 = $139,551.86

8 0
3 years ago
What is the domain of the function h(x)=4log_5(x−6)+1 ? Enter your answer in the box.
Kaylis [27]

The domain is all real numbers greater than 6

log functions cannot be less than 0

4 0
3 years ago
Read 2 more answers
A bicycle has tires with a diameter of 21 inches. How many inches will
Finger [1]

Answer:

175 feet

Step-by-step explanation:

In 1 full revolution, the bike will travel 42 inches because the diameter of the tire is 21 inches. Any point on the tire will have to go through a whole revolution to be back at the original point which means 21 inches times 2.

So the bike travels 42 inches in 1 revolution then in 50 revolutions it will travel 2100 inches (42 times 50). Now if your convert 2100 inches to feet, you get 175 feet.

8 0
2 years ago
Thirteen students entered the business program at Sante Fe College 2 years ago. The following table indicates what each student
gizmo_the_mogwai [7]

Answer:

y=1.003009+0.003453x

or

GPA=1.003009+0.003453(SAT Score)

Step-by-step explanation:

The least square regression equation can be written as

y=a+bx

In the given scenario y is the GPA and x is SAT score because GPA depends on SAT score.

SAT score (X) GPA (Y) X²         XY

421           2.93 177241 1233.53

375          2.87         140625 1076.25

585          3.03 342225 1772.55

693          3.42  480249 2370.06

608          3.66 369664 2225.28

392          2.91  153664 1140.72

418           2.12  174724 886.16

484          2.5    234256 1210

725             3.24  525625  2349

506          1.97   256036 996.82

613           2.73  375769 1673.49

706          3.88 498436 2739.28

366           1.58  133956 578.28

sumx=6892

sumy=36.84

sumx²=3862470

sumxy=20251.42

n=13

b=\frac{(nsumxy)-(sumx)(sumy)}{nsumx^{2}-(sumx)^{2}  }

b=9367.18/2712446

b=0.003453

a=ybar-b(xbar)

ybar=sum(y)/n

ybar=2.833846

xbar=sum(x)/n

xbar=530.1538

a=2.833846-0.003453*(530.1538)

a=1.003009

Thus, required regression equation is

y=1.003009+0.003453x.

The​ least-squares regression equation that shows the best relationship between GPA and the SAT score is

GPA=1.003009+0.003453(SAT Score)

7 0
3 years ago
Jocelyn bought 2 sweaters for the same price. She paid $23.56, including sales taxes of $1.36 and a $5.00 discount coupon. What
yKpoI14uk [10]
13.60 because you add the coupon discount back on and subtract tax cost and divide by 2 
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3 years ago
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