Answer:
![= 1.14 \times 10^{7}pounds](https://tex.z-dn.net/?f=%20%3D%201.14%20%5Ctimes%2010%5E%7B7%7Dpounds)
Step-by-step explanation:
If each whales weighed
![3.8 \times {10}^{5}](https://tex.z-dn.net/?f=3.8%20%5Ctimes%20%20%7B10%7D%5E%7B5%7D%20)
Then 30 whales weighed
![30 \times 3.8 \times {10}^{5}](https://tex.z-dn.net/?f=30%20%5Ctimes%203.8%20%5Ctimes%20%20%7B10%7D%5E%7B5%7D%20)
![=114 \times {10}^{5}](https://tex.z-dn.net/?f=%20%3D114%20%5Ctimes%20%7B10%7D%5E%7B5%7D%20)
![= 1.14 \times 10^{2} \times {10}^{10}](https://tex.z-dn.net/?f=%20%3D%201.14%20%5Ctimes%2010%5E%7B2%7D%20%20%5Ctimes%20%7B10%7D%5E%7B10%7D%20)
Applying the law of indices we obtain
![= 1.14 \times 10^{(2+ 5)}](https://tex.z-dn.net/?f=%20%3D%201.14%20%5Ctimes%2010%5E%7B%282%2B%205%29%7D)
![=1.14 \times 10^{7}pounds](https://tex.z-dn.net/?f=%20%3D1.14%20%5Ctimes%2010%5E%7B7%7Dpounds)
8352. Multiply 20880 by 2 then divide by 5.
Answer:
Step-by-step explanation:
Vertically opposite angles are equal
8x + 2 = 7x + 11
Subtract 2 from both sides
8x = 7x + 11 - 2
8x = 7x + 9
Subtract 7x from both sides
8x - 7x = 9
x = 9
Answer:
The example is telling you to first add up each number then divide by the amount of numbers that are present in the set. There are four in this example.
Secondly the difference between each data point will differ from each number. Basically subtract the sum from each number. Which is 5 in this case. But if its negative flip it to a positive.
Then add up each absolute value and divide by 4 twice.
You’re answer is B, you just have to multiply all of the sides together and then add your sums.
Hope this helps:)