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r-ruslan [8.4K]
3 years ago
15

Help pls I will give you the brainiest I need the answers for all of them

Mathematics
1 answer:
gogolik [260]3 years ago
8 0

the 1st one goes to 2 and the 2nd one goes to 3 the 3rd one goes to 1 the and so on

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I don’t understand this please help
Ierofanga [76]

Answer:

2

Step-by-step explanation:

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8 0
3 years ago
Area of the living room is 180 square feet and the perimeter is 54 feet. What are the dimensions in feet?
dolphi86 [110]

Answer.....15ft by 12ft

Explanation:

Area = Length × Width

180 = LW....make W the subject of formula

;W = 180/L

Perimeter = 2L + 2W

54 = 2L + 2(180/L)...sub W with the formula above...

then simplify the equation and obtain...

2L^2 - 27L + 180 = 0....then solve using the quadratic formula....then obtain..

;L = 15ft....after obtaining L = 15...then substitute into the W = 180/L equation...

where W = 180/15 = 12ft

there you have...Length = 15ft and Width = 12ft

5 0
3 years ago
Can you please help? I know the one I chose is correct.
AleksandrR [38]
I believe you are right :) because they are the same 
7 0
2 years ago
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What basic trigonometric identity would you use to verify that (sin2x + cos2x)/cosx=secx
Oksana_A [137]

Answer:

Step-by-step explanation:

sin(2x) = 2 sin(x) cos(x) cos(2x) = cos2(x) – sin2(x) = 1 – 2 sin2(x) = 2 cos2(x) – 1. Now I am not sure if this is right but I remember another similar formula. Here is the correct formula cot x = cos x / sin x

2 ) ( sin² x + cos² x ) / cos x = sec x

1/cos x = sec x

sec x = sec x

cos² x + sin² x = 1

7 0
3 years ago
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for Anthony's birthday his mother is making cupcakes for his 12 friends at daycare the recipe calls for three and one third cup
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You subtract in this number sentence 
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