Ingrid dug a trench eighteen twentieths of a meter long. the next day she dug nine twentieths of a meter more of the trench. what is a reasonable estimate of the total length of the trench?

step-by-step explanation:

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: