J. D. has a square lot. Each side of the lot is 36 feet long. He built a circular grain bin that reaches to the edge of the lot. What is the area of the base of the grain bin?
What will be an ideal response?
1,018 ft2
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Acetylene should never be used:
A) Below 15 psi. B) Below 20 psi. C) Above 20 psi. D) Above 15 psi.
In light of future evidence, it seems apparent that in the Compromise of 1850 the South made a tactical blunder and exacerbated sectional tensions by
A. allowing a ban on the slave trade in Washington, D.C. B. demanding a strong fugitive-slave law. C. not insisting on federal protection of slavery in the territories. D. allowing the admission of California as a free state. E. allowing popular sovereignty in Nebraska territory.
____________________ is a clear, slightly yellowish fluid that lubricates the joint in the same manner as oil lubricates a mechanical bearing.
Fill in the blank(s) with the appropriate word(s).
Surface coal mining involves removal of material covering coal that is close to the surface. This covering material is called ____
a. cap rocks c. overburden b. coal seams d. over rocks