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3 years ago

Simplify: squareroot 64r^8 8r2 8r4 32r2 32r4

Mathematics

2 answers:

Sav [38]3 years ago

8 0

Answer:

8r^4

Step-by-step explanation:

√(64r^8) = √((8r^4)^2) = 8r^4

_____

You can make use of either or both of these rules of exponents:

(a^b)^c = a^(b·c) . . . . . used above

$\sqrt[n]{a}=a^{\frac{1}{n}}$

Using the second rule, you can write the expression as ...

$\sqrt{64r^8}=\sqrt{64}\cdot r^{8\cdot\frac{1}{2}}=8r^4$

marin [14]3 years ago

7 0

Answer:

B. 8r^4

Step-by-step explanation:

Edge 2020

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3 years ago

13. A sales lady is paid commission at the rate of 3% on all goods she sells. During

telo118 [61]

Answer: Sh. 9540

Step-by-step explanation:

First, we have to calculate the cost of the total things sold. This'll be:

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3 years ago

Which expression is equalvient to 3x/x+1 divided by x+1

Aleonysh [2.5K]

Answer:

1÷20+80_50+5÷4+30_10+7

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3 years ago

Which logarithmic equation has the same solution as x minus 4 = 2 cubed

vampirchik [111]

Given:

The given equation is $x-4=2^{3}$

Solving the equation $x-4=2^{3}$ , we get;

$x-4=8$

$x=12$

We need to determine the logarithmic equation that is equivalent to the given equation.

Option A: $\log 3^{2}=(x-4)$

Simplifying, we get;

$\log 9=x-4$

$\log 9+4=x$

$4.95=x$

Since, the values of x are not equivalent, the equation $\log 3^{2}=(x-4)$ is not equivalent to $x-4=2^{3}$

Option A is not the correct answer.

Option B: $\log 2^{3}=x-4$

Simplifying, we get;

$\log 8=x-4$

$\log 8+4=x$

$4.9=x$

Since, the values of x are not equivalent, the equation $\log 2^{3}=x-4$ is not equivalent to $x-4=2^{3}$

Option B is not the correct answer.

Option C: $\log _{2}(x-4)=3$

Simplifying, we get;

$x-4=2^{3}$

$x-4=8$

$x=12$

Since, the values of x are equivalent, the equation $\log _{2}(x-4)=3$ is equivalent to $x-4=2^{3}$

Hence, Option C is the correct answer.

Option D: $\log _{3}(x-4)=2$

Simplifying, we get;

$x-4=3^2$

$x-4=9$

$x=13$

Since, the values of x are not equivalent, the equation $\log _{3}(x-4)=2$ is not equivalent to $x-4=2^{3}$

Hence, Option D is not the correct answer.

8 0

3 years ago

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What is the answer???

astra-53 [7]

Answer:

is it c?

Step-by-step explanation:

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3 years ago

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