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trasher [3.6K]
3 years ago
7

This is from khan academy and the question is in the image below.

Mathematics
1 answer:
Ymorist [56]3 years ago
6 0

Answer:

The answer is supposed to be -9, not 9.

Step-by-step explanation:

In step 2, when you are adding a negative plus a negative (-4 + -5) it should always come out a negative. So, step 3 should come out as -9 instead of 9.  

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Kim was walking down a rocky path.For 4 minutes, the elevation dropped steadily.All together it dropped 8 feet. What was the cha
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Answer:

2  \frac {{\textrm{feet}}}{{\textrm{minute}}}

Step-by-step explanation:

Kim was walking down a rocky path. For 4 minutes,  the elevation dropped steadily. All together it dropped 8 feet.

So, the change in elevation per minute for the 4 minutes is given by,

\frac {8}{4} \frac {{\textrm{feet}}}{{\textrm{minute}}}

= 2  \frac {{\textrm{feet}}}{{\textrm{minute}}}

(Answer)

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Answer:

2000? ... assume $2000

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Look at the triangle: A right angle triangle is shown with hypotenuse equal to 10 centimeters. An acute angle of the triangle is
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