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pochemuha
2 years ago
13

50 points i neeeeeed help

Mathematics
1 answer:
viktelen [127]2 years ago
7 0

Answer:

  • B. a₁ = -6, aₙ = aₙ₋₁ + 4

Step-by-step explanation:

<u>From the given sequence we see that:</u>

  • Common difference is 4

<u>Find the first term:</u>

  • a₁ + 3*4 = a₄
  • a₁ + 12 = 6
  • a₁ = -6

<u>The recursive formula for this sequence is:</u>

  • a₁ = -6, aₙ = aₙ₋₁ + 4

Correct choice is B

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3 In
Orlov [11]

Answer:

22.3838476568 in²

Step-by-step explanation:

First you would find the area of sector (yellow). The formula is 75/360 x π x 3².

this is equal to 5.89048622548. Now the total circle area is 3²xπ = 28.2743338823. 28.2743338823 - 5.89048622548 = 22.3838476568 in²

⭐ Answered by Foxzy0⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

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7 0
3 years ago
Write the equation of a polynomial of degree 3, with zeros 1, 2 and -1 where f(0)=2
ser-zykov [4K]

Answer:

f(x) = x^3 - 2x^2 - x + 2

Step-by-step explanation:

since the zeroes are 1,-1, and 2. we can write the function like

f(x) = (x-1)(x+1)(x-2)

f(x) = (x^2-1)(x-2)

f(x) = x^3 -2x^2 -x +2

and it is true that f(0)=2

4 0
3 years ago
F(x)=(x - 4)^2-1 what is x ?
AysviL [449]

Answer:

(x−3)(x−5)

Step-by-step explanation:

Hope this helped

3 0
2 years ago
What is the twentieth term of the arithmetic sequence 21, 18, 15, 12, ... ?
Vaselesa [24]

Answer:

-36

Step-by-step explanation:

21, 18, 15, 12....

All you have to do is subtract 3 less on each number you get, until u get to the twentieth term....

21, 18, 15, 12, 9, 6, 3, 0, -3, -6, -9, -12, -15, -18, -21, -24, -27, -30, -33, <u><em>-36</em></u>

<u><em /></u>

-36 is the twentieth term of this arithmetic sequence

Hope this helped!

Have a supercalifragilisticexpialidocious day!

8 0
2 years ago
Evan saves $2 for every $5 he earns mowing lawns. How much will Evan have saved when he has earned $150?
Lesechka [4]

Answer:

he will have saved 45$

Step-by-step explanation:

if you take 2 from every 5 and 5 x 15 = 150, you would do 2 x 15 and get 30. So, the answer is 30$

6 0
3 years ago
Read 2 more answers
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