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kozerog [31]
3 years ago
11

Make a conjecture about the next item in the sequence 1, -4, 9, -16

Mathematics
2 answers:
Snezhnost [94]3 years ago
4 0
To get -4 from 1, we must either subtract 5 from 1 or mult. 1 by -4.  Unfortunately subtracting 5 from -4 does not result in 9, and mult -4 by -4 does not result in -16.  So neither "works"  in predicting the next term.

Can you think of any other experiments to do that would help you discover the pattern 1, -4, 9, -16?  


HACTEHA [7]3 years ago
4 0
The  absolute values of each term are a  sequence of  perfect squares  and the sign alternates  so the next term would be 5^2 = 25 answer.
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X^5 y^2 + x^2 y^5 <br> Factor the expression completely.
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Find the mean of x,2x,3x,4x,5x​
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Answer:

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2 years ago
EFGH is an isosceles trapezoid. If EH=4x-27 and FG=x+9, find the value of x.<br> PLEASE HELP ASAP!
djyliett [7]

Answer:

If EFGH is an isosceles trapezoid,

if

EH=4x-27+

FG=x%2B9+

EG=3y%2B19

FH=11y-21

then EH=FG and EG=FH

set up equations:

4x-27=x%2B9 .......solve for x

4x-x=27%2B9

3x=36

x=36%2F3

3y%2B19=11y-21.......solve for y

11%2B19=11y-3y

30=8y

y=30%2F8

y=15%2F4

y=3.75

so,x=12    and y=3.75

you can also check the length of equal sides and equal diagonals:

EH=4%2A12-27+=21

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FH=11%283.75%29-21=30.25x=12

Step-by-step explanation:

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2 years ago
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