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2 years ago

4/9(x + 13) =8 what is the value of the x

Mathematics

1 answer:

erik [133]2 years ago

7 0

Answer:

x=5

Step-by-step explanation:

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What’s is the answer

kvasek [131]

When you are multiplying an exponent directly into a number/variable with an exponent, you multiply the exponents together.

For example:

$(x^{2} )^{3} = x^6$

$(x^{3} )^5=x^{15}$

When you are multiplying a variable with an exponent by another variable with an exponent, you add the exponents together.

For example:

$(x^{2} )(x^{3})=x^{5}$

$(x^{1} )(x^{2})=x^{3}$

$(\frac{(x^{-3})(y^{2})}{(x^{4})(y^{6})} )^{3}=\frac{(x^{-9})(y^{6})}{(x^{12})(y^{18})}$

You multiply 3 into each exponent in the numerator and the denominator

$\frac{(x^{-9})(y^{6})}{(x^{12})(y^{18})}= \frac{y^{6}}{(x^{9})(x^{12})(y^{18})}$

When you have a negative exponent, you move it to the other side of the fraction to make the exponent positive.

$\frac{y^{6}}{(x^{21})(y^{18})} = \frac{1}{(x^{21})(y^{12})}$

When you have something like this:

$\frac{x^{2}}{x^5}$

You subtract the exponents together, so:

$\frac{x^2}{x^5} = x^{2-5} = x^{-3} = \frac{1}{x^3}$

Your answer is the second option

3 0

3 years ago

i suck at geometry but if you can explain on how j can find radius without having a picture pulled up that would be great!

Galina-37 [17]

I believe it equals 360

4 0

2 years ago

What is the length of a squares diagonal when the sides are 1 km

PIT_PIT [208]

Answer:

As per given Information

Side of square = 1 Km

we have to find the length of diagonal of square .

For finding the length of diagonal of square we will use formale

Length of Diagonal = Side√2

Putting the value we get

↠ Length of Diagonal = 1√2 Km

So, the length of diagonal of square is 1√2 Km

7 0

2 years ago

-5 x + y = - 21 and y = x - 1 solve the system of equation

Kitty [74]

Answer:

Step-by-step explanation:

-5x + (x -1) = -21

-4x = -20

x = 5

3 0

2 years ago

Find the circumference of the circle and show work

expeople1 [14]

Answer:

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

Circumference of a circle is given by

$C = 2\pi \: r$

Given - Diameter of circle = 10 yards

$radius = \frac{diameter}{2} = \frac{10}{2} \\ \\ \implies \: 5 \: yards$

now ,

substituting the value of r in the formula of circumference ~

$C = 2 \times \frac{22}{7} \times 5 \\ \\ \implies \: C = \frac{220}{7} \\ \\ \implies \: C = 31.43 \: yards \: (approx.)$

hope helpful :D

4 0

2 years ago

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4/9(x + 13) =8 what is the value of the x​

4/9(x + 13) =8 what is the value of the x