Answer:
D
Step-by-step explanation:
Using the rules of exponents
×
=
and
= 
Given
× 2² =
=
= c , hence
c =
=
=
→ D
Answer: 3
Step-by-step explanation:
Prime numbers below 30: 1, 3, 5, 7, 11, 13, 17, 19, 23, 29
2 prime numbers that sum up to 30:
1 and 29
7 and 23
13 and 17
The greatest possible product will be 13 x 17 = 221
Answer: The two prime numbers are 13 and 17
In order to answer the question, it's absolutely essential to have
enough of a description of the object to know which of its parts
'X', 'Y', and 'Z' are, and what other parts it may have.
An ideal way to accomplish this would have been for you to include the
picture that accompanies the question, wherever you copied it from.
BEST estimate of this amount is
. Correct option A. 2 x 10^7 .
<u>Step-by-step explanation:</u>
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 .