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Lelu [443]
3 years ago
13

What answer is correct? The audio is just reading the question.

Mathematics
2 answers:
klemol [59]3 years ago
6 0

Answer:

The answer is A) 2.

Step-by-step explanation:

9 = -2x + 5

4 = -2x (subtracted 5 from both sides.)

2 (add -2 to both sides.)

RSB [31]3 years ago
3 0

Answer:

its 7

Step-by-step explanation:

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which of the following expresses the coordinates of the foci of the conic section shown below? (x-2)^2/4+(y+5)^2/9
elena55 [62]

Step-by-step explanation:

\frac{(x - 2) {}^{2} }{4}  +  \frac{(y + 5) {}^{2} }{9}  = 1

This is the equation of the ellipse. Since the denominator is greater for the y values, we have a vertical ellipse. Remember a>b, so a

The formula for the foci of the vertical ellipse is

(h,k+c) and (h,k-c).

where c is

Our center (h,k) is (2, -5)

{c}^{2}  =  {a}^{2}  -  {b}^{2}

Here a^2 is 9, b^2 is 4.

{c}^{2}  = 9 - 4

{c}^{2}  = 5

c =  \sqrt{5}

So our foci is

(2, - 5 +  \sqrt{5} )

and

(2, - 5 -  \sqrt{5} )

6 0
1 year ago
A theater sold a total of 570 tickets for a new movie. Of those tickets, 30% were children's tickets. How many children's ticket
professor190 [17]
According to my calculations the 30% of 570 is 171

10% of 570 is 57

times that by 3 and you get 171
7 0
3 years ago
Read 2 more answers
For each equation, determine whether it represents a direct variation, an inverse variation, or neither. Find the constant of va
rewona [7]
Both inverse variation’s. K=constant=9,6
6 0
3 years ago
Practice with area
joja [24]

Answer:

  1453 cm²

Step-by-step explanation:

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  A = (1/2)Pa

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The area of the pentagon is 1453 square centimeters.

4 0
3 years ago
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