Please Help!!! Which angles of the triangles measure 90°?

Mathematics

1 answer:

pochemuha3 years ago

8 0

D and b
they are 90° angles cause you can draw your line to make a 90° angle

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James decides to walk from school to the park tp play ball. The park is only 0.5 mile from the school. He leaves school at 3:15

aleksley [76]

Answer: $0.05\ \frac{mi}{min}$

Step-by-step explanation:

For this exercise you need to remember the following formula:

$V=\frac{d}{t}$

Where "V" is the speed, "d" is the distance and "t" is time.

In this case, according to the information given in the exercise, you know that:

- James leaves his school at 3:15 and arrives at the park at 3:25. Then, you can identify that the time it takes him to go from his school to the park is:

$t=10\ min$

- The park is 0.5 miles from James' school. Therefore, you can identify that "d" is:

$d=0.5\ mi$

So, knowing those values, you can substitute them into the formula:

$V=\frac{0.5\ mi}{10\ min}$

Finally, evaluating, you get the following result:

$V=0.05\ \frac{mi}{min}$

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How would you best describe the two students outside the circles?

ruslelena [56]

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A. They are boys who are not in sixth grade and don't wear glasses.

Explanation:

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3 years ago

Find x from this triangle

algol [13]

Hello,

we are going to use the theorem of the bissectrice. (if this word is good in english)

$\dfrac{KL}{LM} =\dfrac{KN}{NM} \\\\\dfrac{8}{x} =\dfrac{14}{20-x} \\\\8(20-x)=14x\\\\160-8x=14x\\\\22x=160\\\\x=\frac{160}{22} \\\\x=\frac{80}{11} \\\\\\x=7.\overline{27}$