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Mathematics, 21.06.2019 22:00
Which sum or difference identity would you use to verify that cos (180Β° - q) = -cos q? a.) sin (a -b) = sin a cos b β cos a sin b b.) cos (a -b) = cos a cos b β sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b
Answers: 1
Mathematics, 21.06.2019 23:00
The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?
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Mathematics, 22.06.2019 00:30
One positive integer is 2 less than another. the product of the two integers is 24. what are the integers
Answers: 1
2. Simplify:
a. 2(4x + 5y)
b. -3(2x + 4y)
PLEASE HURRY...
a. 2(4x + 5y)
b. -3(2x + 4y)
PLEASE HURRY...
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