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german
3 years ago
14

Write down the second term in the sequence given by: T(n) = n2 - 5

Mathematics
1 answer:
enot [183]3 years ago
8 0
There are two terms n2 and -5. n2 is the first term and -5 is the second term
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Help me with 3, and 5 show your work !
ss7ja [257]
Okay so for number 3, you have to do the top work first.

3: POSITIVE 2!! first, you do the stuff inside the parentheses first because of P(parentheses)EMDAS. so, 14-2-10! -2-10 is -12 and then plus positive 14 is +2. but, the negative sign outside of the parentheses makes that +2 a -2.
but, you cant forget the -12 outside. you have to do -12-2 which gets you -14. then, this is easy! -14 divided by -7 is a positive 2!

5: POSITIVE 3!! again, do the stuff in the parentheses first!! -2-4 is -6. then, -6 x 2 is -12! so, divide -12 by -4 and you get a positive 3!
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3 years ago
6. Spiderman is three times as old as Superman.
anyanavicka [17]
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3 years ago
Read 2 more answers
If the area of square 3 is 80 cm² and thee area of square 2 is 100 cm², what is the area of square 1?
swat32

Answer:

260 cm²

Step-by-step explanation:

Please see the attached picture for the full solution.

5 0
3 years ago
I need help ASAP!!!!!!!!!!!!!!!!!!!!
Mariulka [41]

Answer:

I think its the last one

Step-by-step explanation:

6 0
3 years ago
Let f(x) = -2x - 7 and g(x) = -4x + 6. Find (fxg)(-5).<br><br> a. -59<br> b. 3<br> c. 26<br> d. -6
DedPeter [7]

Answer:

78

Step-by-step explanation:

The given functions are:

f(x) =  - 2x - 7

and

g(x) =  - 4x + 6

(f \times g)(x) = f(x) \times g(x)

(f \times g)(x) = ( - 2x - 7)( - 4x + 6)

When we plug in x=-5, we get:

(f \times g)( - 5) = ( - 4 \times -  5 + 6)( - 2 \times  - 5 - 7)

(f \times g)( - 5) = ( 20 + 6)( 10 - 7)

(f \times g)(5) = ( 26)( 3) =7 8

3 0
3 years ago
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