( 4x2 - 4 ) = ( 2x - 2)(2x + ---)

1 answer:

4 0

Answer:

4x^2-4 = 4(x+1)(x-1)

REMEMBER: factoring a perfect square

Step-by-step explanation:

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Nataliya [291]

Answer:

108.

Step-by-step explanation:

"At this rate, ..." means we're to assume Nancy's score is proportional to the number of holes:

score/18 = 24/4

Multiplying by 18, we get ...

score = 18(24/4) = 18(6) = 108

Nancy can expect a score of 108 on 18 holes.

(if this isn't right, tell me and I will make sure to recheck my work :).

3 0

2 years ago

Annette [7]

Solve the equation 7x-1=15 where x is the cost of each bundle of drawing sheets.

15-1=14
14/7=2
Each bundle cost $2

6 0

2 years ago

Marizza181 [45]

There are 12 possible arrangements.

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Considering that the blue cup has to be on one end, we consider the number of arrangements possible with the other 4 cups, then multiply by 2(considering the blue on each end).

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Considering green and yellow before red and purple, there are $2 \times 2 = 4$ outcomes(G-Y-R-P, G-Y-P-R, Y-G-R-P and Y-G-P-R).
Another two possible outcomes are yellow-purple and green-red, or vice-versa, thus 4 + 2 = 6 outcomes.
To account for the blue on the end, multiplying by 2. $2 \times 6 = 12$
There are 12 possible arrangements.