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lyudmila [28]
4 years ago
13

6x^+4(x^-1) simply this question

Mathematics
1 answer:
Nadusha1986 [10]4 years ago
6 0
1. when you see 4(x² - 1), then you have to multiply 4 with everything in the bracket. keep in mind that you always have to be cautious of the sign whether it is a positive or a negative.

positive ×/÷ positive = positive
negative ×/÷ negative = positive
positive ×/÷ negative = negative
negative ×/÷ positive = negative

^ you have to remember this.

2. only like terms (same alphabet) can plus or minus each other.

3. simplify by taking out the common factor and placing it outside the bracket.

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elimination means to get rid of one variable by altering the coefficients of variable (by multiplying and diving by some constant number)

in this case, if you just add the two equation, y gets cancelled you get 5x=20 or x=4

put it in any equation to get y (this works because both lines pass through the same point, so they must satisfy that point) to get y=2

4 0
3 years ago
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Mel Needs to park his car for eight hours. Spikes parking place charges five dollars per hour for the first three hours and thre
Dima020 [189]

Answer:

  • Spike's Parking
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Step-by-step explanation:

After 3 hours, Spike charges 6 dollars per hour. For 3 hours, the charge is only $5×3 = $15 (which is $3 less than $6×3). So the rate after 3 hours can be modeled by ...

  s(h) = 6h -3

For 8 hours, s(8) = 6·8 -3 = 45 . . . . dollars

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After 4 hours, Main Deck charges 8 dollars per hour. For 4 hours, the charge is only $18 (which is $14 less than $8×4). So the rate after 4 hours can be modeled by ...

  m(h) = 8h -14

For 8 hours, m(8) = 8·8 -14 = 50 . . . . dollars

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For 8 hours, the $45 charge at Spike's is $5 less than the $50 charge at Main Deck.

6 0
3 years ago
Is this scatterplot a positive or negative association?
Viefleur [7K]

Answer:

its negative

Step-by-step explanation:

4 0
3 years ago
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If x =2209 and y = 441 then the square root of their product is equal to​
kiruha [24]
The answer is 987 hopefully that helped
6 0
3 years ago
Which of these is a dependent variable and which of these is an independent variable.
attashe74 [19]

Answer:

I did jumping jacks

Step-by-step explanation:

conditioning exercise performed from a standing position by jumping to a position with our legs spread and arms raised and then to the normal position.

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