1. Hoover Dam spans the Colorado
River on the Nevada-Arizona state
line. For its construction, the federal
government purchased 21,670,000
pounds of gates and valves. Which
number is the BEST estimate of this
amount?
A. 2 x 10^7
B. 2 x 10^8
C. 3 x 10^7
D. 3 x 10^8

BEST estimate of this  amount is . Correct option A. 2 x 10^7 .

Step-by-step explanation:

Here we have , Hoover Dam spans the Colorado  River on the Nevada-Arizona state  line. For its construction, the federal  government purchased 21,670,000  pounds of gates and valves. We need to find BEST estimate of this  amount . Let's find out:

21,670,000  pounds

⇒ 21,670,000  pounds

⇒

⇒

⇒

⇒

⇒

Now, Rounding of 2.167 we get 2  ,So

⇒

Hence ,  BEST estimate of this  amount is . Correct option A. 2 x 10^7 .

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

may i see the picture? it would a lot, xox