Skater 500 m / 40 sec= 12.5 m/ sec
Cheetah 260/10 = 26 m/ sec= The cheetah is more than twice as fast as the skater
So number 1 is 12.5
Number 2 is 26
this now rhe answer
(123+2"51=?=90.356821.2344
what do you need to know? maybe i can answer the question :)
![\begin{gathered} 9x-7=-7 \\ \text{Step 1: Add 7 to both sides:} \\ 9x-7+7=-7+7 \\ 9x=0 \\ \text{step 2: Divide both sides by 9} \\ \frac{9x}{9}=\frac{0}{9} \\ x=0 \\ \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%209x-7%3D-7%20%5C%5C%20%5Ctext%7BStep%201%3A%20Add%207%20to%20both%20sides%3A%7D%20%5C%5C%209x-7%2B7%3D-7%2B7%20%5C%5C%209x%3D0%20%5C%5C%20%5Ctext%7Bstep%202%3A%20Divide%20both%20sides%20by%209%7D%20%5C%5C%20%5Cfrac%7B9x%7D%7B9%7D%3D%5Cfrac%7B0%7D%7B9%7D%20%5C%5C%20x%3D0%20%5C%5C%20%20%5Cend%7Bgathered%7D)
The mistake is the step 2. You need to divide both sides by 9, not multiply both sides by 9
Answer:
Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.
Step-by-step explanation: