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2 years ago

PLEASE HELP !!! which choices are equivalent to square root of -4???

Mathematics

2 answers:

san4es73 [151]2 years ago

6 0

Answer: A) 2i

√-4 is a complex number and its square root is another complex number ‘2i’.

Jet001 [13]2 years ago

5 0

Answer:

-2

Step-by-step explanation:

just a guess but it's right

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Which of the following expressions can be used to find the area of a square with a side length of 1/3m?

SVEN [57.7K]

Answer:

(1/3)^2 m^2

Step-by-step explanation:

Because Area of square = A = x*x

here x = 1/3 m.

so A = (1/3 m)*(1/3 m) = (1/3)^2 * m^2

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4 years ago

How many quarters can fill a 1 liter bottle?

scoundrel [369]

3090 because I looked up

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3 years ago

Mr. Fulton bought 12 1/2 pounds of ground beef for the cookout. He plans on using 1/4 pound of ground beef for each hamburger. H

vekshin1

Answer:

Mr. Fulton can make 50 hamburgers.

Step-by-step explanation:

Given:

Total amount of ground beef = $12\frac{1}{2} \ pounds$

$12\frac{1}{2}$ can be Rewritten as $\frac{25}{2}$

Total amount of ground beef = $\frac{25}{2}\ pounds$

Amount of beef used for each hamburger = $\frac{1}{4}\ pound$

We need to find the number of hamburgers could he make.

Solution:

Now we can say that;

number of hamburgers can be calculated by Total amount of ground beef divided by Amount of beef used for each hamburger.

framing in equation form we get;

number of hamburgers = $\frac{\frac{25}{2}}{\frac{1}{4}} = \frac{25}{2}\times \frac{4}{1} = 50$

Hence Mr. Fulton can make 50 hamburgers.

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3 years ago

Yuri thinks that 3/4 is a root of the following function.

sineoko [7]

Given:

The polynomial function is

$q(x)=6x^3+19x^2-15x-28$

Yuri thinks that $\dfrac{3}{4}$ is a root of the given function.

To find:

Why $\dfrac{3}{4}$ cannot be a root?

Solution:

We have,

$q(x)=6x^3+19x^2-15x-28$

If $\dfrac{3}{4}$ is a root, then the value of the function at $\dfrac{3}{4}$ is 0.

Putting $x=\dfrac{3}{4}$ in the given function, we get

$q(\dfrac{3}{4})=6(\dfrac{3}{4})^3+19(\dfrac{3}{4})^2-15(\dfrac{3}{4})-28$

$q(\dfrac{3}{4})=6(\dfrac{27}{64})+19(\dfrac{9}{16})-\dfrac{45}{4}-28$

$q(\dfrac{3}{4})=3(\dfrac{27}{32})+\dfrac{171}{16}-\dfrac{45}{4}-28$

$q(\dfrac{3}{4})=\dfrac{81}{32}+\dfrac{171}{16}-\dfrac{45}{4}-28$

Taking LCM, we get

$q(\dfrac{3}{4})=\dfrac{81+342-360-896}{32}$

$q(\dfrac{3}{4})=\dfrac{-833}{32}\neq 0$

Since the value of the function at $\dfrac{3}{4}$ is not equal to 0, therefore, $\dfrac{3}{4}$ is not a root of the given function.

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3 years ago

Which set of ordered pairs represents y as a function of X?

Nana76 [90]

Answer:

because any of the x-coordinates are repeated than its not a function..

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4 years ago