Solve the equation.0.43x + 0.43x = 1.72 (Round to two decimal places)
A. 0.24
B. 9.33
C. 2.14
D. 2
Answer: D
Mathematics
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Compute the gradient of the function at the given point.
A. ?f = 
i - 
j
B. ?f = 
i + 
j
C. ?f = - 
i - 
j
D. ?f = - 
i + 
j
Mathematics
Multiply.(7xy + 8z)(7xy - 8z)
A. x2y2 - 64z2 B. 49x2y2 - 64z2 C. 49x2y2 - 112xyz - 64z2 D. 49x2y2 + 112xyz - 64z2
Mathematics
Solve the equation symbolically.20y = 11
A. 5.5 B. 0.055 C. 0.55 D. 9
Mathematics
Use a calculator to find the approximate value of the composition. Round answers to four decimal places. The expression may be undefined.sin 
A. 2.9 B. 0 C. -2.9 D. Undefined
Mathematics