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Svetllana [295]

2 years ago

15

Cos^4A - sin^4A = COS2A

1 answer:

Elenna [48]2 years ago

8 0

Step-by-step explanation:

hope u understand it's just a simple formula

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Which is the difference of 21 1/4 - 18 2/4? A:2 1/4. B:2 2/4. C:2 3/4. D:3 1/4.

seropon [69]

Answer:

2 3/4 C

Step-by-step explanation:

$(21+\frac{1}{4})-(18+\frac{2}{4})\\=21-18+\frac{1}{4} -\frac{2}{4} \\=3-\frac{1}{4} \\=\frac{12-1}{4} \\=\frac{11}{4} \\=2\frac{3}{4} \\or\\21\frac{1}{4} -18\frac{2}{4} \\=\frac{85}{4} -\frac{74}{4} \\=\frac{85-74}{4} \\=\frac{11}{4} \\=2\frac{3}{4}$

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3 years ago

Which improper fraction is equal to the mixed number 4 7/9 btw its a mixed number fraction

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The answer is C 100% positive

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2 years ago

Which of the following measurements must be accurate when used in a grocery store? Check all that apply.

andrew-mc [135]

Option B

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2 years ago

PLEASE HELP I NEED TO PASS <br> “Find g(6) when g(x)=2x-16”

Annette [7]

Answer:

-4

Step-by-step explanation:

you just plug in. so, 2(6)-16

so, 2*6 is 12

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3 years ago

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kykrilka [37]

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2 years ago