Classify the polygon by name. If it is a quadrilateral, give its specific name.
A. Square
B. Rhombus
C. Hexagon
D. Rectangle
Answer: B
Mathematics
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Find the principal unit normal vector N for the curve r(t).r(t) = (1 + t)i + (3 + ln(cos t))k, -?/2 < t < ?/2
A. N(t) = (-cos t)i - (ln(cos t))k B. N(t) = (-sin t)i - (cos t)k C. N(t) = (-cos t)i - (tan t)k D. N(t) = (cos t)i + (sin t)k
Mathematics
Simplify the expression by combining like terms, if possible.-6(10r + 5) + 9(10r + 2)
A. -90r B. 30r + 5 C. 4r - 1 D. 30r - 12
Mathematics
Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 15°
What will be an ideal response?
Mathematics
Determine whether the function is one-to-one by graphing and using the horizontal line test.f(x) = 7x2 - 4
A. Yes B. No
Mathematics