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bogdanovich [222]
4 years ago
12

I want to know the question 3 plwsase

Mathematics
1 answer:
konstantin123 [22]4 years ago
8 0
For #3 you first need to know how many inches = a foot and 12 inches = a foot. So The answer would be for feet. The sentence would say, 3 feet. For the teacher you first need to know how many inches is your teacher desk. My teacher's desk is 36 inches. Since 12 inches equal a foot, we can divide 36 by 12 and we would get 3. So for mine my teacher's desk would be equal to 3 foot. The sentence would be: 3 foot. Together the complete sentence is: 3 rulers or 3 feet. 
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Answer:

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Step-by-step explanation:

Each of the functions is evaluated in the usual way: put the number where the variable is in the expression and simplify.

  h(-1) = -2(-1)² -3(-1) +1 = -2 +3 +1 = 2

  f(2) = (2(2) +7)/(2 -3) = 11/-1 = -11

Then f(h(-1)) is ...

  f(h(-1)) = f(2) = -11

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Step-by-step explanation:

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Expand and simplify<br> (4 + 2)(6-12)<br> Give your answer in the form b+cV2
Crank

Note: Consider the expression is (4+\sqrt{2})(6-\sqrt{2}).

Given:

(4+\sqrt{2})(6-\sqrt{2})

To find:

The value of given expression in the form of b+c\sqrt{2}.

Solution:

We have,

(4+\sqrt{2})(6-\sqrt{2})

Using distributive property, we get

=4(6-\sqrt{2})+\sqrt{2}(6-\sqrt{2})

=4(6)+4(-\sqrt{2})+\sqrt{2}(6)+\sqrt{2}(-\sqrt{2})

=24-4\sqrt{2}+6\sqrt{2}-2

On combining like terms, we get

=(24-2)+(6\sqrt{2}-4\sqrt{2})

=22+2\sqrt{2}

On comparing with b+c\sqrt{2}, we get

a=22,b=2

Therefore, the required form is 22+2\sqrt{2}.

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Step-by-step explanation:

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Step-by-step explanation:

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