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3 years ago

F(x) = 3/(x + 2) - sqrt(x - 3) complete the following statement: f(19)=

Mathematics

1 answer:

liberstina [14]3 years ago

5 0

Answer:

f(19)=3/21-4=-3.857

Step-by-step explanation:

f(x)=3/(x+2)-sqrt(x-3)

f(19)=3/(19+2)-sqrt(19-3)

f(19)=3/21-sqrt(16)

f(19)=3/21-4

f(19)=-3.857

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2. In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviati

Kobotan [32]

Answer: $85,000

Step-by-step explanation:

Given : In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000.

$\mu_M=40,000\ \ ;\sigma_M=12,000$

Female earnings have a mean of $45,000 per year and a standard deviation of $18,000.

$\mu_F=45,000\ \ ;\sigma_F=18,000$

If C denote the combined earnings for a randomly selected couple.

Then, the mean of C will be :-

$\mu_c=\mu_M+\mu_F\\\\=40,000+45,000=85,000$

Hence, the mean of C = $85,000

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3 years ago

3 x 5 = 15 5 x 3 = 15 shows the ________ property? Commutative

Ulleksa [173]

Answer:

commutative property of multiplication

Step-by-step explanation:

The commutative property of multiplication is correct. The commutative property of multiplication is basically arranging the numbers in any way and it won't change the product.

The associative property of multiplication is arranging the numbers in parenthesis and it won't change the product either.

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2 years ago

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GREYUIT [131]

Answer:

800 × ( 3.87÷ 100 ) × 1

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2 years ago

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Georgia [21]

Answer:

d = 25.12

Step-by-step explanation:

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2 years ago

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algol13

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