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bogdanovich [222]

4 years ago

12

I want to know the question 3 plwsase

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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Find f(h(-1))<br> 2<br> -9<br> 11<br> -11

kumpel [21]

Answer:

(d) -11

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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2 years ago

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sveta [45]

Answer:

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Step-by-step explanation:

8 0

3 years ago

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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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Mashcka [7]

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Step-by-step explanation:

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