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3 years ago

Is -19+ square root of 14 rational or irrational

Mathematics

2 answers:

Cloud [144]3 years ago

4 0

Answer: √14 =3.74, which is not an integer and therefore is an irrational number.

Step-by-step explanation:

sashaice [31]3 years ago

3 0

Answer:

The answer is irrational.

Step-by-step explanation:

Any whole number +/- an irrational number will be irrational as well. Since $\sqrt{14}$ is irrational (it can't be expressed as a ratio of 2 whole numbers) the answer will also be irrational because you are adding it to 19 (a whole number).

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3 years ago

If c is a real number and if 1 + i is a solution of the equation x^2 -2x + c = 0, what is the value of c?

Nana76 [90]

Answer:

c = 2

Step-by-step explanation:

Substitute x = 1 + i into the equation

(1 + i)² - 2(1 + i) + c = 0 ← distribute left side

1 + 2i + i² - 2 - 2i + c = 0 ( note that i² = - 1 )

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6 0

3 years ago

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A child grew 3 1/4 inches one year and 4 3/4 inches the next year. How many inches did the child grow over the two years?

svet-max [94.6K]

Answer:

8 inches.

Step-by-step explanation:

3 1/4 + 4 3/4

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3 0

2 years ago

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The formula c=3.14 can be used

Nataly [62]

it can be used to calculate the length of a circular bracelet

4 0

3 years ago

A. Original Price: $16.20

Tom [10]

Answer:

The final price is $ 22.68 And Proportional constant is 1.4

Step-by-step explanation:

Given as :

The Original price = $ 16.20

The rate of increase = 40%

Let The final price = x

Now,

Final price after increase = initial price × ( 1 + $\frac{\textrm Rate}{100}$

Or. Final price after increase = $ 16.20 × ( 1 + $\frac{\textrm 40}{100}$

Or, Final price after increase = $ 16.20 × ( 1.4 )

∴ Final price after increase = $ 22.68

Now , Proportional constant = $\frac{22.68}{16.20}$

I.e Proportional constant = 1.4

Hence The final price is $ 22.68 And Proportional constant is 1.4 Answer

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3 years ago