Triangle abc is an obtuse triangle with the obtuse angle at vertex b. angle a must be

less than 90°.
greater than 90°.
congruent to angle b.
congruent to angle c.

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

Write the equation in logarithmic form e^x=403.429

If a is a nonzero real number then the reciprocal of a is