Convert the temperature, as indicated. Round your answer to hundredths, if appropriate.-25°C, into Fahrenheit
A. -13°F
B. 7°F
C. -77°F
D. 18.1°F
Answer: A
Mathematics
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Find the product using the formula for multiplying the sum and difference of two terms. Check the answer using the FOIL method.(8a + 5c)(8a - 5c)
A. 8a2 - 5c2 B. 64a2 - 80ac - 25c2 C. 64a2 - 25c2 D. 64a2 + 80ac - 25c2
Mathematics
Express the sum or difference as a product.cos 
+ cos 
A. 2 sin 2x sin 
B. 2 sin 2x sin x
C. 2 cos 2x
D. 2 cos 2x cos 
Mathematics
Find the vertices of the ellipse.
+ 
= 1
A. (-5, -13), (-5, 3) B. (-5, -11), (-5, 1) C. (-5, -15), (-5, 5) D. (-15, -5), (5, -5)
Mathematics
Multiply.(-2.3)(-14.0)
A. 32.2 B. -16.3 C. 16.3 D. -11.7
Mathematics