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SVEN [57.7K]
3 years ago
9

Simplify x^2-4/x^2+4

Mathematics
1 answer:
STALIN [3.7K]3 years ago
5 0

Answer:

Step-by-step explanation:

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The lengths of three sides of a quadrilateral are shown below:
pentagon [3]
In part A, we need to solve for the total length of sides 1, 2 and 3.
Since all three sides measurements are given, we have the solution below:
Sides123 = Side 1 + Side 2 + Side 3
Sides123 = (3y² + 2y - 6) + (4y² + 3y -7) + (5y² + 4y -8)
Sides123 = 12y² + 9y - 21
This is the total length of sides 1,2 and 3 "12y² + 9y - 21"

In part B, we need to solve for the length of the fourth side and the solution is shown below:
Side 4 = Perimeter / Sides123
Side 4 = (4y³ + 18y² + 16y -26) / 12y² + 9y -21
3 0
3 years ago
(04.01, 04.02 HC)
lord [1]
I’ve broken it down into the parts that you’ve highlighted:

Part A:
x = 25 + y
x + y = 95

Part B:
I’m using the substitution method to find the amount of time that Eric plays volleyball, so:
x + y = 95
x = 95 - y
95 - y = 25 + y
70 = 2y
y = 35, 35 minutes spent playing volleyball

Part C: i don’t completely understand the question, perhaps there was a typo?
5 0
2 years ago
Y=-4x^2-8x-13 find the vertex of this parabola
boyakko [2]
Hello : 
<span>Y=-4x²-8x-13
   = -4(x²+2x) -13
   = -4 ((x² +2x+1)-1) -13
   = -4 (x+1)² +4 -13
</span>Y=   -4 (x+1)² -9
<span>the vertex is : (-1 , -9)

</span>
4 0
3 years ago
18. If (2x-3) is a factor of 2x4 - 3x² + 15x - 15k,<br> find the value of (3k - √5 k).
k0ka [10]

Answer:

Well, here it means that if we set 2x-3 to zero, it becomes x over two dimensions. If we set the question form to zero and set x to two over two

k is obtained 19 to 12, now put this k in what you want

8 0
2 years ago
Blanca jogged 8 days last month. She jogged 1.25 miles on each of these days and burned 140 calories per mile while jogging.
Marat540 [252]
Answer: 1,400 calories



Bianca jogged 1.25 miles per day for 8 days. so 1.25*8 would equal 10 miles.

Since she jogged 10 miles and burned 140 calories per mile, if we multiply 10*140, we would get 1,400.

So last month, she lost 1,400 calories.
6 0
3 years ago
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