Use your calculator to evaluate the square root. Write your answer to seven decimal places.
A. 11.4455231
B. 17,161
C. 11.4891253
D. 11.3137085
Answer: A
Mathematics
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Find the unit tangent vector of the given curve.r(t) = 
i + 
j - 12tk
A. T = 
i + 
j - 
k
B. T = 
i + 
j - 
k
C. T = 
i + 
j - 
k
D. T = 
i + 
j - 
k
Mathematics
Solve the problem.How much pure acid should be mixed with 5 gallons of a 50% acid solution in order to get an 80% acid solution?
A. 20 gal B. 2.5 gal C. 12.5 gal D. 7.5 gal
Mathematics
Find the product.(-3x - 5)(-4x + 4)
A. -7x2 + 8x + 8 B. 12x2 + 8x - 20 C. -7x2 + 8x - 20 D. 12x2 + 8x + 8
Mathematics
Verify the identity.
= cos 3x
What will be an ideal response?
Mathematics