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Georgia [21]
2 years ago
13

Enter the expression using exponents.

Mathematics
2 answers:
Mamont248 [21]2 years ago
7 0

Answer/Step-by-step explanation:

You see that there is 3, 2s there. Meaning you add them up and use the amount there is as your exponent.

so your answer is 2^{3}

mario62 [17]2 years ago
7 0
Is it 2 the power of 3
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When purchased, a beach ball is deflated and packaged flat. The package states that when inflated to its maximum capacity, the r
MrRissso [65]

volume for a sphere (ball) is 4/3 x PI x r^3

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volume = 4/3 x 3.14 x 250.047 = 1046.863

rounded to nearest hundredth = 1046.86 cubic inches

5 0
3 years ago
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3 0
2 years ago
Write the equation in standard form. Identity the center and radius.<br> x² + y2 + 8x-4y-7=0
lorasvet [3.4K]

Answer:

equation;

(x + 4) {}^{2}  + (y - 2) {}^{2}  = 27

Center (-4,2)

Radius is

3 \sqrt{3}

Step-by-step explanation:

Since the x^2 and y^2 have the same coeffiecent this will be a circle in a form of

(x - h) {}^{2}  + (y - k)  {}^{2}  =  {r}^{2}

Where (h,k) is center

r is the radius

So first we group like Terms together

{x}^{2}  + 8x  +  {y}^{2}  - 4y - 7 = 0

Add 7 to both sides

{x}^{2}  + 8x +  {y}^{2}  - 4y = 7

( {x}^{2}  + 8x) +(  {y}^{2}  - 4y) = 7

Since the orginal form of the equation of the circle has a perfect square we need to complete the square for each problem

(\frac{8}{2} ) {}^{2}  = 16

and

( - \frac{4}{2} ) {}^{2}  = 4

so we have

{x}^{2}  + 8x + 16 +  {y}^{2}  - 4y + 4y = 7 + 16 + 4

{x}^{2}  + 8x + 16  +  {y}^{2}  - 4y + 4y = 27

(x + 4) {}^{2}  +  (y  - 2) {}^{2}  = 27

To find our center, h is -4 and k is 2

so the center is (-4,2)

The radius is

\sqrt{27}  = 3 \sqrt{3}

So the radius is 3 times sqr root of 3.

8 0
2 years ago
Solve for x. Express the answer in simplest form. <br><br> 2/1 = 8z -2/9
aleksandr82 [10.1K]
5/18 or in dec .27777777
6 0
3 years ago
X+7=5x2 what's the answer
Helen [10]
Answer: 3

Explanation:

x + 7 = 5 x 2

you do 5(2) and get 10

plug in 10 and the equation looks like:

x + 7 = 10

from there you would subtract 7 from 7 and 10 to isolate x and get your answer of:

x = 3 :)

3 0
3 years ago
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