Answer:
(d) 428,820,000 pounds of garbage
Step-by-step explanation:
Your calculator or spreadsheet can give you the product of two numbers expressed in scientific notation.
(1.643×10^3 lb/resident) × (2.61×10^5 residents) = 4.28823×10^(3+5) lb
≈ 428.82×10^6 lb
= 428,820,000 lb . . . of garbage
Answer:
B
Step-by-step explanation:
1.265x = 1.265 x 1000 = 1265
1265 / 2.3 = 550
Written in scientific notation, it's 5.5x, so it's B.
64 is a counter example that proves Jim's conjecture as false.
<u><em>Explanation</em></u>
The number should be less than 100 and need to be both perfect square and perfect cubes.
So, 64 is a perfect squared number.
Now,
So, 64 is also a perfect cubed number.
<h2>
Answer:</h2>
The speed of the commercial jet is while the speed of the private airplane is
<h2>
Step-by-step explanation:</h2>
Let's name the commercial jet as cj and private airplane as pa, so we know the following:
<u>It takes the commercial jet 1.1 hours for the flight, so:</u>
<u>It takes the private airplane 1.8 hours for the flight, so:</u>
<u>The speed of the commercial jet is 210 miles per hour faster than the speed of the private airplane:</u>
Let's name the speed of the commercial jet as and the speed of the private airplane as , then:
From physics we know that:
Since the distance from Denver to phoenix is unique, then:
Thus, from the equation and given the relationship we have:
Finally, the speeds are: