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3 years ago

If f(x)=5x-7 and g(x)√x-2 which statement is true?

1 answer:

8 0

If f ( x ) = 5 x - 7
f ( 5 ) = 5 * 5 - 7 = 25 - 7 = 18
- 5 is in the domain
g ( 5 ) = √ ( 5 - 2 ) = √ ( - 3 ) ( this is an irrational number )
- 5 is not in the domain.

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Given the exact value for sides a and c.

Over [174]

Answer:

See below

Step-by-step explanation:

a = 15 sqrt 2 sin 45

= 15 sqrt 2 * sqrt( 2 ) /2 = 15 * 2 /2 = 15

sin 60 = a/c

sqrt(3)/2 = 15/c

c = 15 / ( sqrt(3)/2) = 30 / sqrt 3 = 30 sqrt 3 /3 = 10 sqrt 3

5 0

2 years ago

Two life insurance policies, each with a death benefit of 10,000 and a one-time premium of 500, are sold to a couple, one for ea

Kazeer [188]

Answer:896.9

Step-by-step explanation:

Let x denotes excess premium over claims

$E\left ( x|husband survives\right )$ , There are two possibilities

(i)Only husband survives

This can be possible with a possibility of 0.01

Claims=10,000

Premium collected $=2\times 500=1000$

Thus x=1000-10,000=-9000

(ii)Both husband and wife survives

This can occur with a probability of 0.96

Here claims will be 0 as both survives

Premium taken=1000

thus x=1000

The probability that the husband survives is the sum of above cases

=0.96+0.01=0.97

Hence the desired conditional Expectation $E\left ( x|Husband survives\right ) =0.01\times \left ( -9000\right )+0.96\times \left ( 1000\right )=896.9$

7 0

3 years ago

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gregori [183]

Answer:

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Step-by-step

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3 years ago

How to prove two equations have infinite solutions?

laiz [17]

To prove two equations have infinite solutions, you have to prove that those two equations are the same equations, but in a different form.

For example: Prove the equations are infinite
5y=2x+7
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3 years ago

What is the range of y = -xsquared2 - 2x + 3?

Flura [38]

Answer:

( - infinity, 4) thats the range hope it helps.

8 0

3 years ago

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