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3 years ago

Find the arc of the semicircle(diameter is 12)

Mathematics

1 answer:

Alchen [17]3 years ago

4 0

Answer:

$18.849$

Step-by-step explanation:

$\frac{180}{360} \times 2\pi \: \times 6 \\ \frac{1}{2} \times 2 \times \pi \times 6 \\ \pi \times 6 \\ = 18.849$

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Hello hope everyone's Day is good if so tell me why or why not

Aliun [14]

Answer:

Well....

A Good Day, Cause Both mY parents are On Duty and Im free, Alone at home!!

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3 years ago

Read 2 more answers

Which shows the following expression using positive exponents?

Hitman42 [59]

Answer:

1. option B is correct i.e., $\frac{-3a^{7}b^3b^1}{15a^{2}}$

2. option D is correct i.e., $\frac{a^3b^4}{ab^2}$ .

3. option B is correct i.e., $\frac{n^{10}}{16m^{6}}$ .

Step-by-step explanation:

1. Since the given equation is:

$\frac{-3a^{-2}b^3}{15a^{-7}b^{-1}}$

As we know that $a^{-x}=\frac{1}{a^x}$

So, the given equation can be represented as:

$\frac{-3a^{7}b^3b^1}{15a^{2}}$

2. Given equation is:

$\frac{a^3b^{-2}}{ab^{-4}}$

As we know that $a^{-x}=\frac{1}{a^x}$

so the given equation can be represented as:

$\frac{a^3b^4}{ab^2}$ .

3. Given equation is:

$(\frac{4mn}{m^{-2}n^6})^{-2}$

by using the properties $a^{-x}=\frac{1}{a^x}$ ,

and $a^x\times a^y=a^{x+y}$

$(\frac{4mn}{m^{-2}n^6})^{-2}$

= $(\frac{4n^1n^{-6}}{m^{-2}m^{-1}})^{-2}$

= $(\frac{4n^{1+(-6)}}{m^{-2+(-1)}})^{-2}$

= $(\frac{4n^{-5}}{m^{-3}})^{-2}$

= $\frac{4^{-2}n^{-5\times (-2)}}{m^{-3\times (-2)}}$

= $\frac{n^{10}}{16m^{6}}$ .

which is option B.

5 0

3 years ago

Read 2 more answers

Is this correct?????????

Delicious77 [7]

Answer:

yup its right

Step-by-step explanation:

5 0

3 years ago

A cake recipe says to bake the cake until the center is 180°F. then let the cake cool to 100°F. The table shows temperature read

mina [271]

Answer:

8.058655822 mins

Step-by-step explanation:

We have a table and to solve for this we might want to find the equation for this

This is a exponential function

To solve for this we need the rate of decay and the x intercept

We know the x intercept is 180 because in 0 mins the temp is 180

To solve for decay we need to know the temp of the cake after 1 min

to get the decay value we can do

125= 180 (x)^5

.69444444444 = x^5

0.929667185 = x

so the equation would be

180 (0.929667185)^x

if we tell this equation to equal 100

we get

100 = 180 (0.929667185)^x

.5556 = (0.929667185)^x

log .5556 = log 0.929667185 *x

log .5556 / log .929667185)

8.058655822= x

After 8.058655822 mins the cake will be 100 degrees

4 0

3 years ago

The Great Pyramid is an example of a (2 examples)

Annette [7]

The Great Pyramid is an example of a 1. A triangular Prisim and a polygon
<span>
A cereal box is an example of a Rectangular prisim </span>or rectangle

A tent is an example of a A triangular Prisim and a polygon

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3 years ago