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3 years ago

The diameter of a circle is 6 inches. What is the circle's circumference?

Mathematics

1 answer:

katrin2010 [14]3 years ago

4 0

Answer:

brainiest? 37.68

Step-by-step explanation:

6 x 2 = 12

12 x 3.14 = 37.68

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Simplify expression x8y-26/x14y-5 × x-39y-21

koban [17]

The simplified form of the expression is $x^{-45} y^{-42}$

<h3>Simplifying an expression</h3>

From the question, we are to simplify the given expression

The given expression is

$\frac{x^{8}y^{-26} }{x^{14}y^{-5} } \times x^{-39} y^{-21}$

The expression can be simplified as shown below

$\frac{x^{8}y^{-26} }{x^{14}y^{-5} } \times x^{-39} y^{-21}$

$\frac{x^{8} \times x^{-39} \times y^{-26} \times y^{-21} }{x^{14} \times y^{-5} }$

$\frac{x^{8+-39} \times y^{-26+-21} }{x^{14} \times y^{-5} }$

$\frac{x^{8-39} \times y^{-26-21} }{x^{14} \times y^{-5} }$

$\frac{x^{-31} \times y^{-47} }{x^{14} \times y^{-5} }$

Then,

$\frac{x^{-31} }{x^{14} } \times \frac{ y^{-47} }{ y^{-5} }$

$x^{-31-14} \times y^{-47--5}$

$x^{-31-14} \times y^{-47+5}$

$x^{-45} \times y^{-42}$

$x^{-45} y^{-42}$

Hence, the simplified form of the expression is $x^{-45} y^{-42}$

Learn more on Simplifying an expression here: brainly.com/question/2320607

#SPJ1

3 0

2 years ago

In ΔJKL, j = 74 cm, k = 14 cm and l=80 cm. Find the measure of ∠J to the nearest degree.

natita [175]

Answer:

∠J = 60°

Step-by-step explanation:

The Law of Cosines tells you ...

j² = k² +l² -2kl·cos(J)

Solving for J gives ...

J = arccos((k² +l² -j²)/(2kl))

J = arccos((14² +80² -74²)/(2·14·80)) = arccos(1120/2240) = arccos(1/2)

J = 60°

_____

<em>Additional comment</em>

It is pretty rare to find a set of integer side lengths that result in one of the angles of the triangle being a rational number of degrees.

6 0

2 years ago

Last week, Gina's art teacher mixed 9 pints of red paint with 6 pints of white

kherson [118]

Answer:

Step-by-step explanation:

First mix: 4 pints red and 3 pints white = 7 pints in 4:3 ratio.

Second mix: 5 pints red and 2 pints white = 7 pints in 5:2 ratio

Second music is redder than first mix.

4 0

3 years ago

Select all the expressions that equal -2 + 5.

notka56 [123]

All of the answer choices except B would be correct for this problem.

5 0

3 years ago

Read 2 more answers

Solve the quadratic equation by completing the square<br> x²+12x+26=0

vova2212 [387]

Answer:

x={-13,-2}

Step-by-step explanation:

(x+13)(x+2)=0

x+13=0

x=-13

x+2=0

x=-2

x={-13,-2}

4 0

3 years ago

The diameter of a circle is 6 inches. What is the circle's circumference?​

The diameter of a circle is 6 inches. What is the circle's circumference?