Answer:
1300
Step-by-step explanation:
the right answer is 1280.5
but becuase you estimate it doenst have to be exact, so 100x13 is the easiest to calculate in your head, so the estimate is 1300
Answer:9
Step-by-step explanation:
45/5 =9
s=d/t
Correct answer: 8xy^6 <span />
Answer:
<h3>
<em>a</em><em>.</em><em> </em><em> </em><em>1</em><em>1</em></h3><h3>
<em>b</em><em>.</em><em> </em><em> </em><em>9</em></h3>
<em>Sol</em><em>ution</em><em>,</em>
<em>a</em><em>.</em><em> </em><em> </em><em> </em><em>Given</em><em>,</em>
<em>X=</em><em>4</em>
<em>y</em><em>=</em><em>3</em>
<em>Now</em><em>,</em>
<em>
</em>
<em>b</em><em>.</em><em> </em><em>Given,</em>
<em>a</em><em>=</em><em>-</em><em>2</em>
<em>b</em><em>=</em><em>5</em>
<em>Now</em><em>,</em>
<em>
</em>
<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>
<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>
Answer:
7. The numbers 14/81 are relatively prime
8. b=3
9. 0.00001
19. 11
Step-by-step explanation:
7. Relatively prime numbers have no common factors. We only have to factor each number and compare
14=2*7
35=5*7
38=2*19
81=9*9
91=7*13
The first two numbers have 7 in common
The second have 2 in common
The third set have no common factors
The fourth set have 7 in common
The numbers 14/81 are relatively prime
8. ![b^{-3}=\frac{1}{27} => b^3=27 => b=\sqrt[3]{27} =3](https://tex.z-dn.net/?f=b%5E%7B-3%7D%3D%5Cfrac%7B1%7D%7B27%7D%20%3D%3E%20b%5E3%3D27%20%3D%3E%20b%3D%5Csqrt%5B3%5D%7B27%7D%20%3D3)
9. ![10^{-5}=\frac{1}{100000}=0.00001](https://tex.z-dn.net/?f=10%5E%7B-5%7D%3D%5Cfrac%7B1%7D%7B100000%7D%3D0.00001)
10. 100,000,000,000=10*10*...10 as many times as zeroes there are, so
![100,000,000,000=10^{11}](https://tex.z-dn.net/?f=100%2C000%2C000%2C000%3D10%5E%7B11%7D)