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Elza [17]
3 years ago
15

(10 - 5) + 5^2 - 2 =

Mathematics
1 answer:
posledela3 years ago
5 0

Answer:

the answer is 28

Step-by-step explanation:

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Answer:

the slope rise/run = 4/6

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Which one is the farthest<br> from sea level? crab -30, whale 0<br> Seagull 20, or dolphin 5?
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Dylan has a fish tank at home. He knows its height, h, is one inch less than twice the width, w, and the length, l, of the fish
pickupchik [31]

The right answer is: <em>The binomial expression 2w + 6 represents the length of the fish tank.</em>


Dylan has a fish tank, so we assume that this tank is a cube. In this way, the volume of the tank is given by this expression:


V = w.h.l


Where:

h: height

w: width

l: length


We know the following things:


FIRST.<em> He knows its height, h, is one inch less than twice the width, w.</em>

This can be expressed as the following equation:


h=2w-1


SECOND. <em>The length, l, of the fish tank is seven inches longer than the height.</em>

We can express this statement as follows:

l=h+7 \\ \\ \therefore l=2w-1+7 \\ \\ \therefore l=2w+6


By substituting h \ and \ l in V:

V=w.h.l \\ \\ \therefore V=w(2w-1)(2w+6) \\ \\ \therefore V=w(4w^2-12w-2w-6) \\ \\ \therefore \boxed{V=4w^3-14w^2-6w}

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4 years ago
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Answer:

Step-by-step explanation:

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a math teacher budgets $380 for news books. the minimum cost of a new book is $30. how many books can she buy? explain.
svetlana [45]

Answer:

y=380-30(x)

x=12 12 books plz brainliest

Step-by-step explanation:


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3 years ago
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