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Strike441 [17]
3 years ago
14

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

Mathematics
2 answers:
daser333 [38]3 years ago
4 0
All but the last one I think but don't quote me
ludmilkaskok [199]3 years ago
3 0

Solution:

Function      Domain

sin−1(x)            [−1,1]   →→→→→Defined

cos−1(x)           [−1,1]  →→→→→Defined

tan−1(x)          (−∞,∞)  →→→→→Defined

cot−1(x)          (−∞,∞)  →→→→→Defined

sec−1(x)        (−∞,−1]∪[1,∞)  →→→→→ not Defined

cosec−1(x)     (−∞,−1]∪[1,∞)  →→→→→not Defined

As, you can see that, all inverse trigonometric functions are defined for, x=\frac{-1}{2}, except sec−1(x)   and cosec−1(x)

, whose domain is not valid or do not exist when , x=\frac{-1}{2}.

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olga_2 [115]

6 boys

16-4=12

12/2=6

It's not that hard of a problem you just have to read in-between the lines

5 0
3 years ago
Read 2 more answers
An article gave the following summary information for fracture strengths (MPa) of n = 196 ceramic bars fired in a particular kil
Oliga [24]

Answer:

54.80 MPa to 55.92 MPa

Step-by-step explanation:

Sample mean fracture strength (x) = 55.36 MPa

Sample standard deviation (s) = 3.99 MPa

Sample size (n) = 196.

The upper and lower bounds for a 95% confidence interval are given by:

U=x+1.960*\frac{s}{\sqrt{n}} \\L=x-1.960*\frac{s}{\sqrt{n}}

The upper and lower bounds of the confidence interval are;

U=55.36+1.960*\frac{3.99}{\sqrt{196}}\\U= 55.92\\L=55.36-1.960*\frac{3.99}{\sqrt{196}}\\L= 54.80\\

The 95% confidence interval for true average fracture strength is 54.80 MPa to 55.92 MPa

4 0
3 years ago
Stephanie has 60 tickets to the carnival.She used 3/4 of her 60 tickets to play games.Then she used 1/5 of her remaining tickets
Lera25 [3.4K]

Answer:

<h2>She gave her brother 6 tickets</h2>

Step-by-step explanation:

This problem is on fractional numbers.

given that she has 60 tickets

1.She used 3/4 of her tickets to play game

=(3/4)*60

=180/4

=45

She is left with (60-45)= 15 tickets

2. She used 1/5 of her remaining tickets for rides

    =(1/5)*15

   =15/5

   =3

She is left with (15-3)= 12 tickets

3. She gave half of her tickets to her brother.

  = (1/2)*12

  =12/2

 = 6

She gave her brother 6 tickets

3 0
3 years ago
The graph of a function f(x) passes through the following points: (0,0), (1, -2), (2,0) Which of the following could be f(x)?
Sveta_85 [38]

Answer:

f(x)= 2x^2-4x

Step-by-step explanation:

3 0
3 years ago
Help fast and thankssss god bless
Wewaii [24]

Answer:

1.

336-6=330

330÷6=55

55 Students in each bus

2.

242-11=231

231÷7=33

Each book was 33 dollars

3.

5+30+100=135

The smallest number is 5

4.

18-3=15

15÷8=1.8

Each candy bar was 1.8 dollars

5.

14-9=5

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6.

4+20+60=84

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12-7=5

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4 0
3 years ago
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