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AlladinOne [14]
3 years ago
13

The expression sin^-1(4/5) has and infinite number of values. True or false?

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
8 0

It is indeed false.

\sin^{-1}x is a function that takes values of x between -1 and 1, and takes on values between -π/2 and π/2. Most importantly, it's a function that takes *one* value in its domain and assigns it to exactly *one* value in its range. Hence \sin^{-1}x is one-to-one.

It's true that \sin x=\frac45 has infinitely many solutions, but \sin x itself is not one-to-one.

pishuonlain [190]3 years ago
7 0

Answer:

False

Step-by-step explanation:

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3 0
3 years ago
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The width of a rectangle is 22 inches and the perimeter is at least 165 inches. what inequality could be used to find the minimu
Lera25 [3.4K]
The answer is D.

We know that a rectangle has two widths that are equal and two lengths that are equal. One width is 22, so the other one is also 22.

If you wanted to find the lengths, you would add both widths together (same as multiplying a width by two) and add that to the two lengths equaled to the perimeter.

So, 22 * 2 + 2x = perimeter of rectangle. We added all four sides together.

We know that the perimeter is at least 165, so 22 * 2 + 2x = 165. Here's the twist. They want the most minimum possible length. So, what answer choice gives you 165 or less for the most minimum or smallest length while still getting to 165?
That is D.
22 * 2 + 2x < = 165.
Hope this helped!
6 0
4 years ago
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Free_Kalibri [48]

Answer:

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like terms and then solve it

4 0
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assume the situation can be exposed as a linear cost, find the cost function, fixed cost is $100, 40 items cost 1,200 to produce
alexira [117]
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hope it helped,
click thx if it did.
7 0
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