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3 years ago

Which equation represents a circle with a center at (-2,-8) and a radius of 11?

Mathematics

2 answers:

andreyandreev [35.5K]3 years ago

6 0

Answer:

(x – 2)² + (y + 8)² = 121

Step-by-step explanation:

aev [14]3 years ago

3 0

The answer is B. $(x-2)^2+(y+8)^2=121$

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If y= 6 when x= 24, find the value of x when y= 7

Shtirlitz [24]

Answer:

x=28

Step-by-step explanation:

the y to x ratio is 1:4 or in other words all you need to do is multiply the y by 4 to get your new x value

-Hope this helps

3 0

3 years ago

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Which could be the first step in simplifying this expression? Check all that apply. (x cubed x Superscript negative 6 Baseline)

PtichkaEL [24]

Answer:

$(x^{-3} )^{2}$

$x^6 x^{-12}$

Step-by-step explanation:

$(x^{3} x^{-6} )^{2}$ is the expression given to be solved.

First of all let us have a look at 3 formulas:

$1.\ p^a \times p^b = p^{(a+b)}\\2.\ (p^a \times q^b)^c = (p^{a})^c \times (q^{b})^c\\3.\ (p^a)^b = p^{a\times b}$

Both the formula can be applied to the expression( $(x^{3} x^{-6} )^{2}$ ) during the first step while solving it.

Applying formula (1):

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

Comparing the terms of $(x^{3} x^{-6} )$ with $p^a \times p^b$

$p=x, a =3, b=-6$

$\Rightarrow x^{3+(-6)}\\\Rightarrow x^{3-6}\\\Rightarrow x^{-3}$

So, $(x^{3} x^{-6} )^{2}$ is reduced to $(x^{-3} )^{2}$

Applying formula (2):

Comparing the terms of $(x^{3} x^{-6} )^{2}$ with $(p^a \times q^b)^c$

$p=q=x, a =3, b=-6, c=2$

$\Rightarrow (x^{3})^2\times (x^{-6})^2\\\text{Applying Formula (3)}\\x^6 x^{-12}$

So, $(x^{3} x^{-6} )^{2}$ is reduced to $x^6 x^{-12}$ .

So, the answers can be:

$(x^{-3} )^{2}$

$x^6 x^{-12}$

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2 years ago

Raul picks 20 flowers from his mother's garden. One fourth of them are purple. How many of the flowers are purple?

steposvetlana [31]

25% were purple and 30 percent another color

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3 years ago

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I GIVE BRAINIEST “What is the solution of a system of equations if the sum of the

zhenek [66]

Answer:

At the bottom!!

Step-by-step explanation:

y=2

2=0+x

x=2

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2 years ago

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Fudgin [204]

The answer is 15 because I checked it with Socratic

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