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3 years ago

What is the cube root of -216 end root

Mathematics

2 answers:

givi [52]3 years ago

7 0

The cube root of -216 is -6.0

Tema [17]3 years ago

6 0

Answer:

-6

Step-by-step explanation:

Recall that the cube root of a negative number is negative, and that the cube root of a positive number is positive.

In this case we want to find ∛-216. The result will be negative:

-∛216

Since 6³ = 216 and ∛216 = 6,

-∛216 = -6

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Solve for x. I need help :,) thank you if you help!

natta225 [31]

Answer: if its a multiple of a 345 triangle then its congruent x is 36 if othersides ate multiples of 20 ie

Sides are

60 80 100 is a 345 right triangle

Step-by-step explanation:

5 0

3 years ago

A rectangular garden is 6 feet long and 4 feet wide. A second rectangular garden has dimensions that are double the dimensions o

yKpoI14uk [10]

Answer:

100%

Step-by-step explanation:

When the dimensions double, the perimeter doubles.

The percent change can be found from ...

percent change = ((new value)/(old value) -1) × 100%

Filling in your values, you have ...

percent change = ((2×(old perimeter))/(old perimeter) -1) × 100%

= (2 - 1) × 100%

= 100%

The perimeter increases by 100% from the first garden to the second.

4 0

3 years ago

Based on the data set shown, which of the following is a true statement?

timama [110]

Answer:

mean = mode

Step-by-step explanation:

To make this easier, let's find the mean, median, and mode.

Mean: Sum of a set of numbers divided by number of terms

Median: Middle number of data when data is in numerical order

Mode: Number that occurs most often in data

To find the mean, add all the values together. -1 - 1 + 0 + 1 + 1 + 1 + 1 + 2 + 2 + 2 + 3 = 11. Now, divide by the number of terms, which is 11. 11/11 = 1. The mean is 1.

To find the median, look at the number in the middle of the data. -1, -1, 0, 1, 1, 1, 1, 2, 2, 2, 3. The median is 1.

To find the mode, look at the number that occurs most often. There are 4 1's, so the mode is 1.

Since all numbers are equal, the only possible answer is the first option.

3 0

3 years ago

A positive real number is 2 less than another. When 4 times the larger is added to the square of the smaller, the result is 49.

Kobotan [32]

Answer:

The numbers are

$-2+3\sqrt{5}$ and $3\sqrt{5}$

Step-by-step explanation:

Let

x -----> the smaller positive real number

y -----> the larger positive real number

we know that

A positive real number is 2 less than another

$x=y-2$

$y=x+2$ ----> equation A

When 4 times the larger is added to the square of the smaller, the result is 49

$4y+x^2=49$ ----> equation B

substitute equation A in equation B

$4(x+2)+x^2=49$

solve for x

$x^2+4x-41=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^2+4x-41=0$

$a=1\\b=4\\c=-41$

substitute in the formula

$x=\frac{-4\pm\sqrt{4^{2}-4(1)(-41)}} {2(1)}$

$x=\frac{-4\pm\sqrt{180}} {2}$

$x=\frac{-4\pm6\sqrt{5}} {2}$

$x=-2\pm3\sqrt{5}$

The positive real number is

$x=-2+3\sqrt{5}$

Find the value of y

$y=x+2$

$y=-2+3\sqrt{5}+2$

$y=3\sqrt{5}$

6 0

3 years ago

What are some ways ou can represent a proportional relationship?equations ,or graphs,or tables ,or can be all of them

Nataly [62]

Proportional relationship

We know a proportional relationship is when one of the variable is obtained by multiplying the other variable by a constant number.

For example, in an equation it can be represented:

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In a table, we can represent it by

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In a graph,

Answer: all of them

6 0

1 year ago