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2 years ago

Square root of -25 in imaginary form

Mathematics

2 answers:

vichka [17]2 years ago

8 0

Root (-25) = root(-1) * root(25)
in imaginary form we know that root(-1) = i
so root(-25) = 5 i

Anvisha [2.4K]2 years ago

7 0

Remember
√(mn)=(√m)(√n)

and
√-1=i

√-25=(√-1)(√25)=(i)(5)
aswer is +/-5i

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2 years ago

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astraxan [27]

Answer:

Let x represents the number of pants and y represents the number of shirts.

As per the statement:

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then;

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Also, it is given that: You can spend as much as $60 and want to buy at least two pairs of pants.

then, we have the equation of inequality;

$8.99x + 3.99y \leq 60$ ;......[1] where x, y are natural number.

x-intercept:

Substitute the value y= 0 in [1] and solve for x;

$8.99x + 3.99(0) \leq 60$

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Similarly.

For y-intercept:

Substitute the value x= 0 in [1] and solve for x;

$8.99(0) + 3.99y \leq 60$

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Simplify:

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2 years ago

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if the C of earth = 25000 miles

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Since radius is a measure of the distance from the center to any point on the circle then that distance would be about 3978.8736 miles<span />

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2 years ago

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Tamiku [17]

Remark

The quick answer is C does not represent a function. It has two y values for x = 2. These two points are (2,1) and (2,3). That eliminates C. No x can have 2 y values and be called a function. A function can have many x vales for a single y and still be a function.

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B also has all different x values. It too is a function.

Answer

A and B are both functions. C is not.

D <<<<< Answer

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2 years ago