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3 years ago

N th term of quadratic sequence 3, 11 , 25, 45

Mathematics

1 answer:

choli [55]3 years ago

6 0

The first differences are 8, 14, 20.

The second differences are 6.

Half of 6 is 3, so the first term of the sequence is 3n^2.

If you subtract 3n^2 from the sequence you get 0,-1,-2,-3 which has the nth term of -n + 1.

Therefore your final answer will be 3n^2 - n + 1

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Please help! Urgent!

Paraphin [41]

Answer:

5 + k

Step-by-step explanation:

Kasey can mow the lawn five minutes faster than Trisha

Which means that it takes Trisha 5 MORE minutes then Kasey to mow the lawn

If Kasey mows the lawn in "k" minutes than Trisha will mow the lawn 5 more minutes then "k"

This can also be expressed as an expression: k + 5, as Trisha takes 5 more minutes to mow the lawn

6 0

3 years ago

Read 2 more answers

What is the value of the expression 2 + 32 ⋅ (3 − 1)? 20 22 23 32

SVETLANKA909090 [29]

2+32x(3-1)

PEMDAS

(3-1)=2
32 x 2 =64
2+64
which is 66

7 0

4 years ago

What does 1/5 + 2/5 + 3/5 equal?

zysi [14]

Answer:

1 1/5

Step-by-step explanation:

1/5+ 2/5+ 3/5= 6/5

make 6/5 a mixed number which would be 1 1/5

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3 years ago

Whats 100,203 in two ways

Fiesta28 [93]

100,000 + 203 and 100,000 + 200 + 3. you just add parts of the number to write it differently

6 0

3 years ago

Read 2 more answers

Can I get some help please?

mamaluj [8]

Answer:

1) 68

/ \

4 17

2 2

68=2*2*17

2) 104

/ \

4 26

/\ /\

2 2 2 13

104=2*2*2*13

3) 78

2 39

3 13

78=2*3*13

4) 225

9 25

/\ /\

3 3 5 5

225=3*3*5*5

Second Part:

1) 45

3 15

3 5

45=3*3*5

2) 70

2 35

5 7

70=2*5*7

3) 54

9 6

/\ /\

3 3 2 3

54=3*3*2*3

4) 126

3 42

3 14

7 2

126=3*3*7*2

3 0

3 years ago