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3 years ago

Can you fine the cube root of a negative number? If so, is it positive or negative? Explain your answer.

Mathematics

1 answer:

Nata [24]3 years ago

6 0

Answer:

Yes, you can find the cube root of a negative number. The answer will be negative!

Step-by-step explanation:

Example: Find the cube root of -27

We know that a cube root is a number multiplied by itself 3 times (NOT MEANING THE NUMBER TIMES 3)

For example, The cube root of 27 positive is 3 because 3 x 3 x 3 = 27

But if we are using a negative number: It is really different because we got to know the rules.

The setup: -3 x -3 x -3 = -27

If we started with -3 x -3 first we know that a negative times a negative equals positive so the answer will be 9 positive, then we have this equation left:

9 x -3 = -27

The rule with this is a number times a negative is negative, so the answer of the question "Find the cube root of -27 is -3"

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Alguien puede ayudarme?

Crank

Answer:

I don’t understand you language

Step-by-step explanation:

Make it in English

4 0

3 years ago

when Dallas committed to work one morning his average speed was 45 mph. On the return trip he average only 35 mph. Due to conges

defon

The required distance is 16.40 km.

This problem can be solved if we know the concept of speed, time and distance.

We know the speed= $\frac{distance}{time}$

To solve the problem let us assume that the total distance between the workplace and home is x km.

Given that his speed while going from home to work is 45 mph and while returning is 35 mph.

Time for the complete journey is $\frac{5}{6}hr$ .

Now according to question;

$\frac{x}{45}+\frac{x}{35}=\frac{5}{6}$

⇒ $\frac{7x+9x}{315}=\frac{5}{6}$

⇒ $16x=\frac{5*315}{6}$

⇒ $x=\frac{5*315}{6*16}$

∴ $x=16.40\ km$

So, the required distance is 16.40 km.

To learn more about speed, distance and time visit the link:

brainly.com/question/15256256

#SPJ9

5 0

2 years ago

frank has two same size rectangles divided into the same number of equal parts. one rectangle has 3/4 of the parts shaded, and t

nata0808 [166]

This question basically asks for the LCM of 3 and 5, which is 3 x 5 =15

This is the answer: 15

Check : The first rectangle had 1/3 shaded; ( one in every three parts)

So for 15 parts altogether, 5 would be shaded ( 1/3 = 5/15)

The second rectangle had 2/5 shaded ( two for every five parts)

So for 15 parts altogether, 6 would be shaded (2/5 = 6/15)

6 0

4 years ago

Read 2 more answers

Please help i will give brainliest. Triangle ABC is mapped to Triangle A’B’C’ using each of the given rules. Which rules would r

gulaghasi [49]

(x,y) -> (-y, x) This is a symmetry with respect to y=x, followed by a reflection across the y axis. Congruent.

(x,y) -> (x-2, y-1/2) This is a translation, but it follows different rules for each coordinate. Not congruent.

(x,y) -> (2x, 2y) This is a dilation. The resulting triangle will be similar, but not congruent. Not congruent.

(x,y) -> (-x, y) This is a reflection across the y axis. Congruent.

(x,y) -> (1/2x, 1/2y) This is a dilation. The resulting triangle will be similar, but not congruent. Not congruent.

7 0

3 years ago

Wha is the distance between (4,-2) and (-3,6)

Zarrin [17]

Treat it like a triangle with the points at either end of the hypotenuse. Then the horizontal leg has length 7, and the vertical leg 8.

Apply Pythagoras and find length is sqrt ( 7*7+8*8 )=10.63 (or sqrt (113) if you want to be exact )

3 0

3 years ago