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alexgriva [62]
3 years ago
9

Please help me please

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0
I believe it is the second one
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Tan22° + tan23° tan22°. tan23° = 1 prove that ​
inysia [295]

Answer:

Formula:(from trigonometry)

Tan(A+B)=(tanA+tanB)/(1-tanA*tanB)

Let A=22 degrees,B=23 degrees

Tan(22+23)=(tan22+tan23)/(1-tan22*tan23)

From trigonometry we know tan45=1

Therefore tan(45)=1=(tan22+tan23)/(1-tan22tan23)

=> 1-tan22tan23=tan22+tan23

=> tan22+tan23+tan23tan22 =1

Hence proved

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2 years ago
What expression represents the length of the rectangle ?
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Answer: Maybe it is   x+8x+12 meters

Step-by-step explanation:

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What is the simplified form of the expression? m^3^-4/4c^5
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C^5m^3 would be the simplified form of your problem. Hope this helps! ^-^
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Please help I’ll give points + brainalist
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A because it has the biggest number when put from least to greatest that repeats
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Mark is cutting construction paper into rectangles for a project. He needs to cut one rectangle that is 12 inches × 13 1/3 inche
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Answer: 265.9167 square inches (rounded)

Step-by-step explanation:

Shoot, okay if this is wrong, shame on me:

All you do is find the areas of each rectangle and add them together.

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