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2 years ago

What does the expression 12f =24 represent?

Mathematics

2 answers:

Law Incorporation [45]2 years ago

6 0

You have to divide both sides by 12 so 12f/12 =24/12 is f = 2

FromTheMoon [43]2 years ago

6 0

12=24/12 so f will equal 2

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lions [1.4K]

First we solve what we can solve.
y-3= 2/3(x-1)
We first multiply
y-3= 2/3 (x) - 2/3
Then we move the -3 and it becomes +3 on the other side
y= 2/3 (x) - 2/3 + 3
And we solve what we can to get our answer.
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2 years ago

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Find the value of x which satisfies the following equation. log2(x−1)+log2(x+5)=4

weqwewe [10]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \: x = 3$

____________________________________

$\large \tt Solution \: :$

$\qquad \tt \rightarrow \: log_{2}(x - 1) log_{2}(x + 5) = 4$

$\qquad \tt \rightarrow \: log_{2} \{(x - 1)(x + 5) \} = 4$

[ log (x) + log (y) = log (xy) ]

$\qquad \tt \rightarrow \: ( x - 1)(x + 5) = {2}^{4}$

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$\qquad \tt \rightarrow \: {x}^{2} + 4x - 5 - 16 = 0$

$\qquad \tt \rightarrow \: {x}^{2} + 4x -21 = 0$

$\qquad \tt \rightarrow \: {x}^{2} + 7x - 3x - 21 = 0$

$\qquad \tt \rightarrow \: x(x + 7) - 3(x + 7) = 0$

$\qquad \tt \rightarrow \: (x + 7)(x - 3) = 0$

$\qquad \tt \rightarrow \: x = - 7 \: \: or \: \: x = 3$

The only possible value of x is 3, since we can't operate logarithm with a negative integer in it.

$\qquad \tt \rightarrow \: x = 3$

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2 years ago

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Answer:

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We are given a shadow of lighthouse.

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Angle make at top of lighthouse is 50°

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$\sin\theta=\dfrac{P}{H}$

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3 years ago

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Answer:

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Step-by-step explanation:

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