So to find percent error you want to take the estimated time minus the actual time or, 32 - 40. You get -8. Now take the absolute value of -8, or 8, and divide that by the actual time, 40. 8 ÷ 40 = 0.2. You want to take your decimal, 0.2, and multiply it by 100. 0.2 * 100 = 20. Finally, add the percent sign and you have your percent error: 20%
Answer:
it depends
Step-by-step explanation:
<em>Shino's formula will work for any prism</em>.
Angelo's formula will work for any prism whose base area can be found by ...
B = (1/2)ew
<em>Angelo can use this formula for a triangular prism</em>.
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For a triangular prism, both may be correct.
For a prism of another shape, Shino is correct. (Angelo may also be correct, depending on the variable definitions.)
Polygons with all same sides is an equilateral.
Answer:
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<u>Question 1:</u>
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<u>Question 2:</u>
Explanation:
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<u>1. Balloon moving at 47 mph on a bearing of 134º</u>
The x-component of a vector is the magnitude of the vector multiplied by the cosine of the angle.
The y-component of a vector is the magnitufe of the vector multiplied by the sine of the angle.
<u>2. Balloon moving at 51mph on a bearing of 341º, with a wind blowing at 17mph on a bearing of 285º</u>
First find, the component forms of the initial velocity of the balloon and of the wind. Then, add the two velocities.
i) Initial velocity of the balloon: Vb,i
ii) Wind velocity: Vw
iii) Add the two velocities
Add the corresponding components: