A plumber wishes to add a pipe parallel to an existing pipe as shown in illustration. Find angle x.
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Fill in the blank(s) with the appropriate word(s).
147
Mathematics
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Determine whether the given trinomial is a perfect square trinomial.x2 + 6x + 11
A. No B. Yes
Mathematics
Solve for x.|2x - 4 | ? 20
A. x ? - 8 or x ? 12 B. -12 ? x ? 8 C. x ? -12 or x ? 8 D. - 8 ? x ? 12
Mathematics
Solve the problem.A certain radioactive isotope decays at a rate of 0.175% annually. Determine the half-life of this isotope, to the nearest year.
A. 396 yr B. 172 yr C. 4 yr D. 286 yr
Mathematics
Find the area of the shaded region.
A. 10 B. 7.5 C. 12.5 D. 5
Mathematics