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solong [7]
3 years ago
12

How do i write 98.5 in scientific notation?

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
3 0
Scientific notation is 9.85 × 10^1
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Erica and Amy started biking in the opposite directions at the same time from the same place. Erica biked at a speed of 6 meters
ipn [44]
Since they are moving in opposite directions, this is the same as Amy staying still and Erica biking at 10 meters per second away from her.

To travel 1km = 1000m at 10 meters per second, you need 1000/10 = 100 seconds.
3 0
3 years ago
Write an equation of the line that passes through 3,1 and 0,10
elena-14-01-66 [18.8K]

Answer:y = -3x + 10

Step-by-step explanation:

To find an equation of a line that passes through two points, we have to first find the slope between the two equation. We can do this by using the slope formula:

where (x₁, y₁) and (x₂, y₂) are the two points that we are finding the slope between.

Lets make (x₁, y₁) equal to (0, 10) and (x₂, y₂) equal to (3, 1). Now we plug them into the slope formula:

So the slope between the two points is -3.

From here, I would normally take one of the points given to us and plug in the point and slope into the point-slope form of a line and then simplify until we get it in slope-intercept form. But if you look carefully, the y-intercept is given to us as the point (0, 10). So we now know that the y-intercept of the line is 10. We can now take the y-intercept and the slope and plug it into the slope-intercept form of a line to get out equation:

y = mx + b

plug in -3 for m (the slope) and 10 for b (the y-intercept)

y = -3x + 10

So now we have our equation.

I hope you find my answer and explanation helpful. Happy studying. :)

3 0
3 years ago
The answers are:<br> 1.73 miles<br> 2.65 miles<br> 3.16 miles<br> 4.58 miles<br> Thanks!
kkurt [141]

Answer:

  4.58 miles

Step-by-step explanation:

The Pythagorean theorem is used to answer such questions. It tells you the relation between the side lengths is ...

  AC² = AB² +BC²

In miles, ...

  5² = AB² + 2² . . . . . . . fill in the given numbers

  25 -4 = AB² . . . . . . . . subtract 2²

  √21 = AB ≈ 4.58 . . . . . take the square root

The distance in miles from A to B is about 4.58.

7 0
3 years ago
Ln x=-3<br> How to solve
Natasha2012 [34]

Answer: x=0.050

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Simplify using exponents: B12/B5
stiks02 [169]
I think what you mean is:
\frac{b^{12}}{b^{5}}

Then using our rules of exponents, this is the same as
b^{12-5}=b^{7}
8 0
3 years ago
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