Step-by-step explanation:
240,000 = 24 x 10^4
24 followed by 4 zeros = 24 x 104
Just make the number of zeroes be the exponent for 10
24 = 24 x 10^0
240 = 24 x 10^1
2400 = 24 x 10^2
24000 = 24 x 10^3
240,000 = 24 x 10^4 miles
Answer:
D 714
Step-by-step explanation:
210 times 3.40
is 714
Answer:
a. −12•13= -156
b. −12•−13= 156
c. 12•(−54) = -648
d. −12•(−54) = 648
Step-by-step explanation:
a and c have negative
b and d have positive
hope this helps ;)
Answer:0.565
Step-by-step explanation:
Hat contain 100 coins out of which 99 is fair and one is double headed.
Probability of getting 7 heads is sum of Head through fair coin+heads through biased coin
Probability of getting a head through a fair coin=0.5
![P(7 heads)=0.99\times 0.5^7+0.01\times 1](https://tex.z-dn.net/?f=P%287%20heads%29%3D0.99%5Ctimes%200.5%5E7%2B0.01%5Ctimes%201)
![P(Double head |7 heads )=\frac{Probability\ of\ 7\ heads\ and\ double\ headed}{probability\ of\ 7\ heads}](https://tex.z-dn.net/?f=P%28Double%20head%20%7C7%20heads%20%29%3D%5Cfrac%7BProbability%5C%20of%5C%207%5C%20heads%5C%20and%5C%20double%5C%20headed%7D%7Bprobability%5C%20of%5C%207%5C%20heads%7D)
![P(Double head |7 heads )=\frac{0.01\times 1}{0.99\times 0.5^7+0.01\times 1}](https://tex.z-dn.net/?f=P%28Double%20head%20%7C7%20heads%20%29%3D%5Cfrac%7B0.01%5Ctimes%201%7D%7B0.99%5Ctimes%200.5%5E7%2B0.01%5Ctimes%201%7D)
![=\frac{0.01}{0.99\times 0.0078+0.01}=0.565](https://tex.z-dn.net/?f=%3D%5Cfrac%7B0.01%7D%7B0.99%5Ctimes%200.0078%2B0.01%7D%3D0.565)
Answer:
x=4
Step-by-step explanation: