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melisa1 [442]
1 year ago
5

Which graph represents (y-3)^2/25 + (x+1)^2/4 > 1 and y <= square root{x+5}+2

Mathematics
1 answer:
Serjik [45]1 year ago
6 0

Answer: graph №2.

Step-by-step explanation:

The\  graph\  \frac{(y-3)^2}{25}+\frac{(x+1)^2}{4} > 1\   is\  shown\  in\  fig. 1\  (see \ below).\\The\  graph\  y\leq \sqrt{x+5}+2 \   is\  shown\  in\  fig. 2\ (see\  below).\\

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The complex numbers corresponding to the endpoints of one diagonal of a square drawn on a complex plane are 1 + 2i and -2 – i.Wh
Musya8 [376]

On the complex plane, the number a+bi is mapped onto the point with coordinates (a,b).

In other words, the x coordinate is the real part of the number, while the y coordinate is the complex part of the number.

Viceversa, if you start from a point (x,y), you can identify the number x + iy.

So, the endpoints of the diagonal are the points (1,2) and (-2,-1). These are points A and C in the attached figure.

This means that points B and D have coordinates

B = (-2,2),\quad D = (1,-1)

So, the correspondant complex numbers are

B = (-2,2)\mapsto -2+2i,\quad D = (1,-1)\mapsto 1-i

6 0
3 years ago
Identify the GCF of 9a^4b^4-27a^3b^3+18a^3b^2
hoa [83]
Hello,

To solve, factour out the expression: <span>9a^4b^4-27a^3b^3+18a^3b^2.

Once factoured out you get the GCF 9a^(3)b^(2)


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3 0
3 years ago
A manager needs to order company shirts for each employee. She was quoted the following rates. If she orders 75 shirts and passe
docker41 [41]
The answer is B.$7.47.

Let's first calculate how much in total 75 shirts cost:
- first 19 (less than 20) cost $10:         19 * $10 = $190
- the next 30 cost $8:                         30 *  $8 = $240
- the rest (26 = 75 - 19 - 30) cost $5: 26 *  $5 = $130

So, in total 75 shirts cost $560:
19 * $10 + 30 * $8 + 21 * $5 = $190 + $240 + $130 = $560

Since 75 shirts are ordered, there must be 75 employees, so each employee must pay $7.47:
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7 0
3 years ago
Read 2 more answers
Which of the following points are solutions to the system of inequalities shown below?
vlada-n [284]
The following solutions to the given system of inequalities shown above would be option c : (-3, -5) option d : (0, 4)  option e. (4, 4)  and option f. <span>(2, -1) 
So how did I know the answer. To check this, you just have to substitute the values.
For example let us take option c (-3, -5)
y </span><span><  3x + 5
-5 </span><span><  3(-3) + 5
-5 </span><span><  -9 + 5
-5 </span><span><  -4 <<You see that -4 is greater than -5 which makes this inequality correct. This is the same process as with the other correct options.
Hope that this answer helps.</span>
7 0
3 years ago
What is the following product? square root 30 times square root 10
egoroff_w [7]

Answer:

D. 10 square root 3 is your answer

Step-by-step explanation:

Here is what you do.

<em>square root 30 = 3 x 2 x 5 </em>

<em>square root 10 = 2 x 5</em>

Add them together.

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<em>3 x 4 x 25.</em>

4 and 25 can come out of the square root.

<em>2 x 5 = 10</em>

10 square root 3 is your answer.

4 0
3 years ago
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