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Talja [164]
3 years ago
10

Which of the following inverse functions are defined for x=-1/2? Select all that apply.

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0

Answer:

A, B, E, and F  

Step-by-step explanation:

sinx and cosx are defined for all values of x. So, sin⁻¹x and cos⁻¹x  are also defined for all values of x.  

A and E are correct.

tanx is defined for all values of x.

However, tan(nπ) = 0 at when n is an integer. So, tan⁻¹(±nx) is undefined. However, tan⁻¹(-½x) is defined, because -½ is not an integer.

B and F are correct.

C and D are <em>wrong</em>. Both sec⁻¹x  and csc⁻¹x are undefined when -1 < x < 1, and -½ is in this forbidden region.

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9 fewer ounces

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first divide 12 by 100 to get .12

then multiply that by 75 and get 9

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3 0
3 years ago
How do you wire 0.52 in words
Alexxx [7]

Answer: fifty-two hundredths

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The pH scale for acidity is defined by pH= -log subscript 10 [H superscript+] where [H superscript+] is the concentration of hyd
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Answer:

The concentration of hydrogen ions in moles per liter (M) is 3.981 * 10^{-9}

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8 0
3 years ago
You have an account with a principal of $200. it pays 8% at the end of every year. calculate the principal at the end of 3 years
Katarina [22]

Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. The principal at the end of 3 years is $248.

<h3>What is simple interest?</h3>

Simple interest is a method of calculating interest on an amount for n period of time with a rate of interest of r. It is calculated with the help of the formula,

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where SI is the simple interest, P is the principal amount, R is the rate of interest, and T is the time period.

The principal at the end of 3 years is,

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3 0
2 years ago
Frank has devised a formula for his catering business that calculates the number of meatballs he needs to prepare.
timofeeve [1]
Just plug in the numbers into the equation.

m = 4a + 2c

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The information given says there are 25 adults and 5 children. So now:

a = 25
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c = 5
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Now plug in the values. 
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This means that 110 meatballs are required for 25 adults and 5 children. 
8 0
4 years ago
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