3 years ago

Find all roots x3^-8=0

Mathematics

1 answer:

Travka [436]3 years ago

7 0

Answer:

Step-by-step explanation:

hello :

x3^-8=0 means : x3^=8

but : 8 = 2^3

so : x3^= 2^3

x=2

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The ratio of two numbers is 1:4, and the sum of these numbers is 40. Find the numbers

Irina-Kira [14]

X + 4x = 40

5x = 40

5x/5 = 40/5

x = 8

1x 8 = 8

4x 8 = 32

Check=

8 + 32 = 40

The numbers are 8 and 32

3 0

3 years ago

What is -9x-(2x/-3) When x equals 7

yuradex [85]

$-9x- \frac{2x}{-3}$

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$\frac{2*7}{-3} = \frac{14}{-3}$

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$-\frac{63}{1} + \frac{14}{3}$

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$\frac{-3+63+14}{3} = \frac{-175}{3}$

<span>Apply the fraction rule : $\frac{a}{-b} = - \frac{a}{b}$ </span>

$= - \frac{175}{3}$

hope this helps!

4 0

3 years ago

I NEED HELP PLEASE, THANKS! :) Use the graph to determine the domain and range of the relation, and state whether the relation i

Mandarinka [93]

Answer:

Domain: All numbers greater than or equal to 0. By definition, the domain of a graph, is the possible x values.

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3 years ago

Let f (x)=x-2 and g(x)=x to the second power -7x-9.find f (g(-1))

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f(g(-1)) = - 3

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3 years ago

What’s the domain and range for these two?

user100 [1]

Step-by-step explanation:

1) the domain is from -3 to 5 D [-3,5]

the range is from -5 to -2. R [-5,-2]

2)the domain is from -3 to 6 but not including 6 D [-3,6)

the range is from -5 but not including -5 to 2. R (-5,2]

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3 years ago