1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zina [86]
4 years ago
9

HELP PLEASE 21 POINTS PLEASE HELP ME!!!! <3

Mathematics
1 answer:
Anna007 [38]4 years ago
6 0

1)

n         1          2         3           4         5         6

f(n)    1033    932     831      730     629     528

First term (a₁):  <u>1033 </u>          Common difference (d): <u>-101 </u>

Explicit rule:  a_{n} = 1134 - 101n    Recursive rule: a_{n} = a_{n-1} - 101

a_{n} = a_{1} + d(n - 1)

a_{n} = 1033 - 101(n - 1)

a_{n} = 1033 - 101n + 101

a_{n} = 1134 - 101n

***********************************************************************************

2)

n         1          2         3           4         5         6

f(n)   -39      -29       -19        -9          9        19

First term (a₁):  <u> -39  </u>          Common difference (d): <u> +10  </u>

Explicit rule:  a_{n} = -49 + 10n    Recursive rule: a_{n} = a_{n-1} + 10

a_{n} = a_{1} + d(n - 1)

a_{n} = -39 + 10(n - 1)

a_{n} = -39 + 10n - 10

a_{n} = -49 + 10n

***********************************************************************************

3)

n         1          2         3           4         5         6

f(n)   3.75      2.5     1.25        0      -1.25     -2.5

First term (a₁):  <u> 3.75  </u>          Common difference (d): <u> -1.25  </u>

Explicit rule:  a_{n} = 5 - 1.25n    Recursive rule: a_{n} = a_{n-1} - 1.25

a_{n} = a_{1} + d(n - 1)

a_{n} = 3.75 - 1.25(n - 1)

a_{n} = 3.75 - 1.25n + 1.25

a_{n} = 5 - 1.25n


You might be interested in
Solve the system of equation please help , I would greatly appreciate it
xz_007 [3.2K]

Answer: Your answer is going to be D. (10, -1)


Step-by-step explanation:

Starting off the equation you want to get rid of either x or y ( I did x first)

Take x+3y=7 and multiply the entire equation by -2 -- -2(x+3y=7)

You get -2x-6y=-14 and then add the two equations together

-2x-6y=-14

2x-4y=24  -- You get -10y = 10

y = -1

You can take the -1 and plug it back into either equation.. ( I did x+3y=7)

x+3(-1)=7 -- x-3=7 -- Add the 3 to get the 10 ( x = 10 )

So you have x = 10 & y = -1

(10,-1)




4 0
3 years ago
Read 2 more answers
Well here's a picture
11Alexandr11 [23.1K]
4/5ths of 100 -of=multiply- is 80 because 4/5 = .8, .8*100 = 80 milliliters 

3 0
3 years ago
Read 2 more answers
What is the retail price of the original price $60 markup : 15%
Nataly [62]
I think the original price is either $51 or $69
4 0
3 years ago
Read 2 more answers
SU and VT are chords that intersect at point R.
vovikov84 [41]

Answer:

<h2>The length of the line segment VT is 13 units.</h2>

Step-by-step explanation:

We know that SU and VT are chords. If the intersect at point R, we can define the following proportion

\frac{RS}{RT} =\frac{RV}{RU}

Where

RS=SR=x+6\\RT=x+4\\VR=RV=x+1\\RU=x

Replacing all these expressions, we have

\frac{x+6}{x+4} =\frac{x+1}{x}

Solving for x, we have

x(x+6)=(x+4)(x+1)\\x^{2} +6x=x^{2} +x+4x+4\\6x-5x=4\\x=4

Now, notice that chord VT is form by the sum of RT and RV, so

VT=VR+RT\\VT=x+1+x+4\\VT=2x+5

Replacing the value of the variable

VT=2(4)+5\\VT=8+5\\VT=13

Therefore, the length of the line segment VT is 13 units.

5 0
3 years ago
Read 2 more answers
I need help with this please
djyliett [7]

Answer:

Step-by-step explanation:

The last three are irrational but I'm not sure about the first four.

3 0
3 years ago
Other questions:
  • Evaluate the surface integral. s z + x2y ds s is the part of the cylinder y2 + z2 = 4 that lies between the planes x = 0 and x =
    7·1 answer
  • !!!!!!!! help !!!!!!!!
    12·2 answers
  • PLEASE HELPPPPPPPPPPPPPJ NU HN HN N HN NH NH. HM M
    10·1 answer
  • Which fraction is equivalent t?
    8·1 answer
  • If there are 32 students in the class and two teachers, how many feet are there?
    5·1 answer
  • Find the area of the shape shown. ​
    15·2 answers
  • Need help asap!!!!!!!!!!!!!!!!!!!
    15·1 answer
  • The total cost of a compact disc, including a 6% sales tax, is $14.31.
    5·2 answers
  • When does a kick-off take place?
    7·1 answer
  • The outside of a rectangular picture frame has length 4x + 5 centimeters and width 2x + 3 centimeters. The picture window inside
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!