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LUCKY_DIMON [66]
3 years ago
6

Please help with these two questions?

Mathematics
2 answers:
Vedmedyk [2.9K]3 years ago
7 0
---------------------------------------
Question 2: 
---------------------------------------
a² + b² = c²
x² + 13² = 15²
x² = 15² - 13²
x² = 56
x = √56
x = 2√14 units

---------------------------------------
Question 4:
---------------------------------------
cos a° = adj/hyp
cos (30) = 12/y
y = 12 ÷ cos(30)
y = 12 ÷ 3√2
y = 4/√2 units

tan a = opp/adj
tan(30) = x/12
x = tan(30) x 12
x = 3√3 x 12
x = 36√3 units


Pepsi [2]3 years ago
4 0
The top one is x=7 and 4 is y=11 and x=7 idk just bacing it off the other triangles bc there all the same size except 3
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What is the LCM of 55,121 and 132
serg [7]
132/2 = 66
66/2 = 33
33/3 = 11
11/11 = 1

132 = 2^2 * 3 * 11

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55,121 = 11 * 5011

LCM = common factor with larger exponent * not common factors

LCM = 2^2 * 3 * 11 * 5011

LCM = 661,452
6 0
3 years ago
What is the value of x? Please answer details are below
nydimaria [60]

Answer:

54

Step-by-step explanation:

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6 0
3 years ago
Please help me with these!
makvit [3.9K]
No.4- This is not a triangle since one side should be less than the sum of the 2 other sides. In this case 8=3+5, hence it's equal & not smaller

N0.5- This is an isosceles triangle & there are an infinity of triangles with the mentioned degrees. (these are called similar triangle)

No6- This is a unique triangle

No.7- If the plane is parallel to the bases, then the slicing is a cercle.
 But if the plane (Parallelogram) is tilt, then the slicing is an ellipse

3 0
3 years ago
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