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damaskus [11]
3 years ago
12

What is the graph of the equation 9x^2 + 4y^2 - 18x + 8y - 23 = 0 ? Also, how did you get that?

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0
13xy^2-10xy-23=0

you first add the like terms and rewrite and thats how you get the answer
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3(p-3) – 5p&gt;-3p- 6<br> How do u solve?
vampirchik [111]

Answer:

p>3

Step-by-step explanation:

<=> 3p - 9 - 5p > -3p - 6

<=> -2p + 3p > -6 + 9

<=> p > 3

5 0
3 years ago
Calculate 6+9i/-1+4i
lisabon 2012 [21]

Multiply the numerator and denominator by the conjugate of the denominator:

\dfrac{6+9i}{-1+4i} \times \dfrac{-1-4i}{-1-4i} = \dfrac{(6+9i)(-1-4i)}{(-1)^2-(4i)^2}

Simplify:

\dfrac{(6+9i)(-1-4i)}{(-1)^2-(4i)^2} = \dfrac{-6-9i-24i-36i^2}{1-16i^2} = \dfrac{-6-33i-36i^2}{1-16i^2} = \dfrac{-6-33i+36}{1+16} = \boxed{\dfrac{30-33i}{17}}

8 0
2 years ago
Six friends together with their respective partners all meet up for a meal. To  commemorate the occasion, they arrange for a ph
olasank [31]

Answer:

1440 different arrangements are possible.

Step-by-step explanation:

Number of arrangements of n elements:

The number of arrangements of n elements is given by:

A_{n} = n!

In this question:

6 couples, in which each can be positioned in 2 ways(him/her or her/him). So

T = 2A_{6} = 2*6! = 1440

1440 different arrangements are possible.

8 0
3 years ago
What is the area of the shaded part of the square?
scZoUnD [109]

Answer: <em>c) 4a² - ab</em>

Step-by-step explanation:

<em>A = (2a)² - ab = 4a² - ab</em>

7 0
3 years ago
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Masja [62]

Answer:

60           86.6

Step-by-step explanation:

Plato

3 0
3 years ago
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