3 years ago

Can you answer the question in the picture pls :)

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

5 0

The answer is letter B

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Please Hurry ...Which expression is equivalent to

swat32

Answer:

$\huge\boxed{\sf \frac{160rs^5}{t^6}}$

Step-by-step explanation:

$\sf 5r^6t^4 ( \frac{4r^3s^tt^4}{2r^4st^6} ) ^5$

Using rule of exponents $\sf a^m/a^n = a^{m-n}$

$\sf 5r^6t^4 ( 2 r^{3-4} s^{2-1}t^{4-6})^5\\5r^6t^4(2r^{-1}st^{-2})^5\\5r^6t^4 * 32 r^{-5}s^5t^{-10}$

Using rule of exponents $\sf a^m*a^n = a^{m+n}$

$\sf 160 r^{6-5}s^5t^{4-10}$

$\sf 160 rs^5 t^{-6}$

To equalize the negative sign, we'll move t to the denominator

$\sf \frac{160rs^5}{t^6}$

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2 years ago

Find the value of z. Round to the nearest hundredth. 30 and<br> 14

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3 years ago

A jewelry maker purchased 20 inches of gold chain.She used 3/8 of the chain for a bracelet. How many inches of gold did she have

Mazyrski [523]

Answer:

12.5 inches of gold chain.

Step-by-step explanation:

To get the remaining chain of gold we need to calculate

8/8 - 3/8 = 5/8 of 20 inches

then multiply:

20 * 5/8 = 100/8

100/8 = 12.5 inches

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3 years ago

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dmitriy555 [2]

Answer:

Step-by-step explanation:

hope it helps :)

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WILL GIVE BRAINLIEST ASAP, EASY 8TH GRADE MATH, MORE THAN 5 POINTS! The formula for the circumference of a circle is: c = 2πr So

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Answer:

r = $\frac{C}{2\pi }$

Step-by-step explanation:

We simply are rearranging C= 2πr in terms of <em>r</em>. We just divide 2π on both sides.

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3 years ago

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