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Whitepunk [10]
2 years ago
11

Solve and show steps. Thanks!

Mathematics
1 answer:
Angelina_Jolie [31]2 years ago
5 0
On ur calculater do 9/25(x^2 - 49/9
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Which of the following points is a solution of y ≤ -|x| - 1?<br><br> (-1, -3)<br> (0, 0)<br> (1, -1)
alexdok [17]
Y + 1 \leq -|x|
-y - 1 \geq |x|
-(-y - 1) \leq x \leq -y - 1
(0, 0)

Answer: B).
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3 years ago
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There are two bowls. One of them has 60 gems and the other has 40 gems. Some of them are red. All the gems from the two bowls ar
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2 years ago
What are all the angle measures for right triangle ABC?
Alenkasestr [34]

Answer:

\alpha = 60°,\:\beta = 30°, \: 90°

Step-by-step explanation:

Arccos( \frac{ \sqrt{3} }{2} ) =  \beta  \\ Arccos(  \cos \: 30 \degree ) =  \beta  \\30 \degree =  \beta  \\  \therefore \:  \alpha  = 60 \degree \\ remaining \: angle = 90 \degree \\

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2 years ago
Why would engineers and architects need to find angles in a polygon
agasfer [191]
As a engineer who was mechanical then electrical most buildings, schematics,etc require some form of calculation for some shapes seeing that those shapes are what make up the world. Say for example you need to make something like a mother board pro house knowing it's shape and angle helps make a more accurate structure during the blue printing and build phase. No one just goes in and wings it you need to determine angles for things you don't know that the point of it.
8 0
3 years ago
a polygon has an area of 225 square meters. A similar polygon is created with an area that is triple the first. By what factor i
GuDViN [60]
The area of the original polygon is:
 A = 225 m ^ 2
 The similar polygon area is:
 A '= (k ^ 2) * (A)
 Substituting values:
 3 * 225 = (k ^ 2) * (225)
 Clearing k we have:
 k ^ 2 = 3
 k = (3) ^ (1/3)
 Answer:
 
The length of each side increased by:
 
k = (3) ^ (1/3)
6 0
3 years ago
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