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garik1379 [7]
2 years ago
6

List the first 4 terms of the sequence 2n² +n -2​

Mathematics
1 answer:
xxTIMURxx [149]2 years ago
5 0

Answer:

1, 7, 17, 31

Step-by-step explanation:

2(1)² + 1 - 2 = 3-2 = 1

2(2)² + 1 - 2 = 9-2 = 7

2(3)² + 1 - 2 = 19-2 = 17

2(4)² + 1 - 2 = 33-2 = 31

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URGENT !!! f(x) = x^2. what is g(x)?
Neporo4naja [7]

Answer:

C

Step-by-step explanation:

Hello

The point (2,1) is on he graph of g

which means that g(2)=1

for A g(2)=2*4=8

for B g(2)=1/(2*2)

for C g(2)=1

for D g(2) =4/2=2

for the correct answer is C

Hope this helps

8 0
3 years ago
Eight beads are strung in a necklace with a clasp, how many ways<br> can the beads be arranged?
Elena L [17]

Answer:

Number of total arrangement of beads = 2,520

Step-by-step explanation:

Given:

Number of beads in necklace = 8 beads

Find:

Number of total arrangement of beads

Computation:

Changing beads is a cyclic permutation,

So,

Formula to find number of total arrangement in cyclic permutation

(n-1)!/2 , where n = number of item

So,

(n-1)!/2

Number of total arrangement of beads = (8-1)!/2

Number of total arrangement of beads = (7)!/2

Number of total arrangement of beads = (7 x 6 x 5 x 4 x 3 x 2 x 1) / 2

Number of total arrangement of beads = 5,040 / 2

Number of total arrangement of beads = 2,520

7 0
2 years ago
Two lengths of a triangle are shown.
valina [46]

Answer:

9 in.?

Step-by-step explanation:

pythagoras theorem

if jl is the hypotenuse you do the square root of 10² - 5²

5 0
2 years ago
Read 2 more answers
What are the real and imaginary parts of the complex number?
Hoochie [10]

Answer:

  • real: -9
  • imaginary: 8

Step-by-step explanation:

The imaginary number <em>i</em> signifies the imaginary part of a complex number. The imaginary part of the number is the coefficient of <em>i</em>. The real part is everything else.

__

In (a +bi), (a) is the real part, and (b) is the imaginary part.

In (-9 +8i), (-9) is the real part and (8) is the imaginary part.

  • real: -9
  • imaginary: 8
6 0
1 year ago
A number is at least 45
Gnesinka [82]
Can you comment the question I will be happy to help
5 0
2 years ago
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