Find the expression.u = 7i + 3j, v = 11i + 15j
Find 
.
A. 5
B. 4
C. 
D. 4
Answer: D
Mathematics
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Find the length of the curve.x = cos 2t, y = sin 2t, 0 ? t ? 2?
A. 6? B. ? C. 4? D. 2?
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Use front-end rounding to estimate the difference:
?
?
A. 7,200 B. 8,300 C. 8,200 D. 7,300
Mathematics
Approximate the area under the curve and above the x-axis using n rectangles. Use right endpoints.f(x) = 
from x = 2 to x = 6; n = 4
A. 3.80 B. 4.36 C. 5.33 D. 5.13
Mathematics