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nekit [7.7K]
3 years ago
13

Find (f•g)(1) f(x)= x^2-1 g(x)=sqrt x

Mathematics
1 answer:
Anastaziya [24]3 years ago
7 0

Answer:

0

Step-by-step explanation:

So we have the two functions:

f(x)=x^2-1\text{ and } g(x)=\sqrt x

And we want to find:

(f\cdot g)(1)

This is the same as:

=f(1)\cdot g(1)

So, let's find f(1) and g(1):

f(1)=(1)^2-1

Square:

f(1)=1-1

Subtract:

f(1)=0

g(1)=\sqrt1

Evaluate:

g(1)=1

So:

(f\cdot g)(1)=f(1)\cdot g(1)=0\cdot1

Multiply:

=0

So, our answer is 0.

And we're done!

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11y - |x|; if x = -10 and y = 2
bonufazy [111]

Answer:

- 8

Step-by-step explanation:

x = - 10

y = 2

I x I

= I - 10 I

= 10

y - I x I

= 2 - 10

= - 8

7 0
3 years ago
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Put the following portions in order from least to greatest 30% 1/5 75% 5/6
sertanlavr [38]

Answer:

1/5,30%,75%,5/6

Step-by-step explanation:

first turn all of them in to decimals:

1/5=0.20

30%=0.30

75%=0.75

5/6=0.83

then put the decimals in order from least to greatest

done!

8 0
2 years ago
Solve: 2cos(x)-square root 3=0 for 0 less than x less than 2 pi
Leona [35]

Answer:

The general solution of   cos x = cos(\frac{\pi }{6})   is  

                                                x = 2nπ±\frac{\pi }{6}

The general solution values  

                                 x = - \frac{\pi }{6}  and x = \frac{\pi }{6}

Step-by-step explanation:

Explanation:-

Given equation is  

                              2cosx-\sqrt{3} =0  for 0

                              2cosx =\sqrt{3}

Dividing '2' on both sides, we get

                             cos x =\frac{\sqrt{3} }{2}

                             cos x = cos(\frac{\pi }{6})

<em>General solution of cos θ = cos ∝ is θ = 2nπ±∝</em>

<em>Now The general solution of   </em>cos x = cos(\frac{\pi }{6})<em>   is  </em>

<em>                                                 x = 2nπ±</em>\frac{\pi }{6}<em></em>

put n=0

x = - \frac{\pi }{6}  and x = \frac{\pi }{6}

Put n=1  

x = 2\pi +\frac{\pi }{6} = \frac{13\pi }{6}

x = 2\pi -\frac{\pi }{6} = \frac{11\pi }{6}

put n=2

x = 4\pi +\frac{\pi }{6} = \frac{25\pi }{6}

x = 4\pi -\frac{\pi }{6} = \frac{23\pi }{6}

And so on

But given 0 < x< 2π

The general solution values  

                                 x = - \frac{\pi }{6}  and x = \frac{\pi }{6}

                               

6 0
3 years ago
Which procedure can be used to solve the equation 540 = 12 z, and what is the solution?
kotegsom [21]

Answer:

The correct answer is C

Step-by-step explanation:

7 0
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Is -2.22 a rational or real or integers
mezya [45]
All because -2.22 is a real number, it’s a rational number because it can stop and a integer because it’s negative
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3 years ago
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