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
Olegator [25]
3 years ago
13

Find an explicit formula for the arithmetic sequence 170,85,0,-85..., d(n)=

Mathematics
1 answer:
irinina [24]3 years ago
8 0

Answer:

d(n) = 85 * ( 3 - n )

Step-by-step explanation:

Let's find the common difference of the terms (if any).

The common difference is = 85 - 170 = 0 - 85 = -85 - 0 = -85

For an arithmatic sequence with first term a, common difference d,

  nth term = a + ( n - 1 ) * d

So, d(n) = 170 + ( n - 1 ) * (-85)

             = 255 - 85n

             = 85 ( 3 - n )

[ If there's any mistake, please inform me ]

You might be interested in
I need to find the ?
Zolol [24]

Answer:

Yup

Step-by-step explanation:

Nice!!!!

5 0
3 years ago
2 fractions between 3/5 and 4/5
Tasya [4]
Convert the fractions to decimals:

3/5=0.6
4/5=0.8

You have to find 2 fractions between these 2 numbers. You could pick anything.

7/10= 0.7 = less than 0.8 but greater than 0.6

75/100=0.75 = less than 0.8 but greater than 0.6

Hope this helps

3 0
3 years ago
Estimate the product by roundup 5 ×5503
Mumz [18]
5 can stay as is, but 5503 can be rounded to 5500 so 5500x5=27500
6 0
3 years ago
Roman stands across from a flag pole.
tigry1 [53]
We have been given a right angled triangle, hypotenuse is known, and angle has been given. we need to find the adjacent side to the angle.

we use trigonometry ratios.
the ratio where we relate the hypotenuse and adjacent side is the cosine.
cos θ = adjacent side / hypotenuse 
where θ = 39°
hypotenuse - 17 m
adjacent side - x
we need to solve for x

cos 39° = x / 17
cos 39° = 0.77
0.7771 = x/17
x = 0.7771 x 17
x = 13.21 m
distance from Roman's feet to the base of the pole is 13.21 
6 0
3 years ago
Read 2 more answers
Y=1/3x+11/15 find x if y=6
Svetlanka [38]

Step-by-step explanation:

plug in y

6=1/3x+11/15

multiply both sides by 15 to get rid of the fraction

90 = 5x +11

move terms to make them like terms

-5x =11- 90

-5x = -79

divide both sides by -5

evaluate for x

3 0
3 years ago
Other questions:
  • Enter an expression that represents the following statement, and then solve the expression.
    11·1 answer
  • PLZZZZZZZZZ HLPPPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEE
    15·2 answers
  • Evaluate the expression 43 + [(96 ÷ 8) × 5] – 42. I need a quick and simple answer, Thank you
    12·1 answer
  • please help fast ! Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match the fractions with equiv
    12·2 answers
  • Simplify 5x² · 6x² · x
    5·1 answer
  • Multiply using mental math 50×28
    12·2 answers
  • Sydney is shopping for a new television. The cost of a 32-inch LCD flat screen is $149.95. The cost of 46-inch LED flat screen i
    5·2 answers
  • Determine how long it will take for $4000 to quadruple in a bank account earning 3.57% interest compounded continuously. Round t
    13·1 answer
  • The height (in feet) of punted football is a function of the time the ball is in the air. The function is defined by h(t) = - 7t
    10·1 answer
  • Need help with 20 and 22
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!