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Ronch [10]
3 years ago
10

Please help me it would mean the world. Extra points!

Mathematics
1 answer:
vaieri [72.5K]3 years ago
3 0

Answer:

i inserted image for your work

you can ask for any doubt

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the nth term of a sequence is given by an²+bn where a and b are integers the 2nd term of the sequence is 2 4th term of the seque
stealth61 [152]

Answer:

54

Step-by-step explanation:

Tn = an²+bn

T2 = a2²+2b

2 = 4a +2b

Multiply all through by 2

4 = 8a +4b

4b = 4-8a

T4 = a4² + 4b

20 = 16a +4b

4b = 20-16a

4-8a = 20-16a

16a -8a = 20-4

8a = 16

a = 16/8 = 2

4b = 4-8a = 4-8(2) = 4-16 = -12

b = -12/4 = -3

T6 = a6² + 6b

T6 = 2(36) + 6(-3) = 72 -18 = 54

7 0
3 years ago
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9s+3=57<br> Z/5+3=-35<br> 7(c-12)=-21
Fudgin [204]
The answer you're looking for is s=6.
by substitution you'd get 6.
4 0
3 years ago
I have 6 surfaces 2 of my surfaces are smaller then the others I can stand up tall what shape am I
Arada [10]
This shape would be a rectangular prism, with 4 rectangular sides, and 2 square or smaller rectangular sides.

An example of a rectangular prism would be a brick. It has 4 sides that are perfectly alike, then two other sides that are like each other.
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4 years ago
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Find the percent of decrease from 310 to 140. Round to the nearest tenth of a percent if necessary.
JulijaS [17]
54.8% I think I'm not sure
4 0
3 years ago
What value of a makes this equation true?
Goshia [24]

9/10=a/30. and value of a is 27

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