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guapka [62]
3 years ago
5

Luke buys a certain brand of cereal that costs $11 per box. Luke changes to a super-saving brand of the same size. The equation

shows the price, y, as a function of the number of boxes, x, for the new brand.
y = 9x

Part A: How many more dollars is the price of a box of Luke’s original brand of cereal than the price of a box of the super-saving brand? Show your work.

Part B: How much money does Luke save each month with the change in cereal brand if he buys 6 cereal boxes each month? Show your work.
Mathematics
2 answers:
marishachu [46]3 years ago
8 0
Y = 9x means each box of the new brand is $9. 

<span>So the old brand is $2 per box more. I know you </span>

<span>can do part B now!
 Hope that helps!!!!!!!!!</span>
swat323 years ago
7 0
The 9 represents the price so he is saving 2 dollars on the new brand he gets per box.

if he buys 6 boxes of the $9 box he will spend $54

if he buys 6 boxes of the $11 box he will spend $66

So with six boxes he saves 12 dollars
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2 years ago
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solong [7]

9514 1404 393

Answer:

  (c)  27x^11 +51x^7 +9x^6 -60x^5 +17x^2 -20

Step-by-step explanation:

As with many multiple-choice questions, you only need to look at something that will discriminate the correct answer from the wrong one.

The highest-degree product term is the product of the highest-degree terms in the factors:

  (3x^5)(9x^6) = 27x^11

This matches choice C only.

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In case you're interested in actually performing the rest of the multiplication, the distributive property applies.

  (1 +3x^5)(17x^2 +9x^6 -20)

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Writing these terms in order of decreasing exponents gives ...

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7 0
3 years ago
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charle [14.2K]
The <u>correct answer</u> is:

As x→-∞, y→-3.
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Explanation:

As our values of x get further into the negative numbers, the value of 2ˣ will approach 0.  This is because raising a number to a negative exponent "flips" the number below the denominator and raises it to a power; we end up with smaller and smaller fractions, eventually so small that they nearly equal 0.  

This will make the value of the function 0-3=-3.

As x gets larger and larger (towards ∞), the value of y, 2ˣ, continues to grow as well.  Since it continues to grow exponentially, we say the value approaches ∞.
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vredina [299]

Answer:

C. Yes, ΔRST can be reflected across the line containing RT and then rotated about T so that S is mapped to Y.

Step-by-step explanation:

Rigid transformations are processes that can be applied to change the orientation or size of a given object, while its shape is maintained. Examples are; rotation, reflection, dilation and translation.

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