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irinina [24]
3 years ago
15

Which of these choices show a pair of equivalent expressions? Check all that apply.

Mathematics
2 answers:
den301095 [7]3 years ago
8 0

Answer:

B and C

Step-by-step explanation:

A-P-E-X

zhannawk [14.2K]3 years ago
3 0
Hehdhebgrhehehhehehehrurhrhrhhehrhrhhrhdhrh
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Find an exact value. Cos 75° negative square root of six plus square root of two quantity square root of six minus square root o
ehidna [41]

Answer:

√2(√3 - 1)/4

Step-by-step explanation:

To find an exact value for Cos75°, we use the compound angle formula. Since 75° = 45° + 30°, Cos75° = Cos(45° + 30°).

Using Cos(A + B) = CosACosB - SinASinB where A = 45° and B = 30°,  

Cos75° = Cos(45° + 30°) = Cos45°Cos30° - Sin45°Sin30°

Now Cos45° = Sin45° = 1/√2 = √2/2, Cos30° = √3/2 and Sin30° = 1/2.

Substituting these values into the above equation, we have

Cos75° = Cos(45° + 30°)

= Cos45°Cos30° - Sin45°Sin30°

= √2/2 × √3/2 -  √2/2 × 1/2

= √6/4 -√2/4

= √2(√3 - 1)/4

6 0
3 years ago
Sheree pours 2 L of water equally into 10cups Each cup can hold 400 mL there is no water left in the bottle how much water is in
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2L = 2000mL

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There is 200mL in each of the 10 cups. 
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Viết tập hợp dưới dạng liệt kê <br> A = { x € Z : (x^2 + 5x - 6)(2x-1)=0}
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Step-by-step explanation:

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2 years ago
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