So this is for an Oregon Trail assingment In 1846 the depth of the river was 5 feet deep.

In 1847 it the river dropped to 3.6 feet.

This year, in 1848, it rose to 6.4 feet.

Can anyone find the percent change in the river's depth?

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*

Recall that area of the triangle is 1/2*(base)*(height)1/2*(13)*(17) = 110.5the answer is 110.5