Write 0.00000123 in scientific notation ?
1 answer:
In a scientific notation, you have to put a decimal right after the first number (unless it is a zero). How many times you move the decimal from its original spot determines the answer. If you move the decimal forward that means you put a negative number
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0.00000123 = 1.23 (moved the decimal point forward 6 times, so the answer is --->)
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0.00000123 = 1.23 (moved the decimal point forward 6 times, so the answer is --->)
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The given question have mistake. The correct question is written below.
Question:
A dog jumps straight up in the air to catch a ball and lands on the ground 6.37 s later. Let h(t) represent the dog’s height, in meters, t seconds after he leaves the ground. Which equation models the dog’s height for a given time t?
Answer:
Option B:
Solution:
<u>General formula for the height of the projectile over time:</u>
(1)
Where h = height in feet, t = time, v = initial velocity and s = initial height (feet)
(2)
Where h = height in meters, t = time, v = initial velocity and s = initial height(meter)
Given initial velocity = 6.37 s and initial height is 0.
The height of the dog is in meters.
So, use second formula and substitute v = 6.37 and s = 0.
Hence option B is the correct answer.