Elevation, A v\certain mountain had an elevation of 19,063 ft. In 1911 the ...

A v\certain mountain had an elevation of 19,063 ft. In 1911 the glacier on this peek covered 8 acres. by 2000 this glacier had melted to only 1 acre. what is the yearly rate of ch

Matrices, I don''t know how to multiply matrices

I don''t know how to multiply matrices

Percentage and fraction, 52% of 0.40 of =

52% of 0.40 of =

Varibles, 2x-1=10 I got 9/2 but i''m not sure if that is really right

2x-1=10 I got 9/2 but i''m not sure if that is really right

Solve by eliminations, 9x-3y=24;7x-3y=20

9x-3y=24;7x-3y=20

Help!!!!, An artifact was found and tested for its carbon-14 content. If 86...

An artifact was found and tested for its carbon-14 content. If 86% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has

Writing Equivalent Ratios, John can drive his car 15 miles on 2 gallons. Ho...

John can drive his car 15 miles on 2 gallons. How many gallons of gas will john need to drive 195 miles?

Multiplying binomials, (x+2) (x+3)

(x+2) (x+3)

Substitution method, solve x-y=8 and x+y=4 using one of the algebraic metho...

solve x-y=8 and x+y=4 using one of the algebraic methods

Quadratic equations,