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Arisa [49]
2 years ago
14

Determine whether GHI is a right triangle for the given vertices G(2,7) H(3,6), I(-4,-1)

Mathematics
1 answer:
kotegsom [21]2 years ago
5 0
No it's an acute triangle.
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-9(-3 1/3 - 4) how do I solve that math problem?
svetoff [14.1K]
You need to use the distributive property. So you take the -9 from outside the parentheses and multiply itself by the numbers inside.
3 0
2 years ago
Can this problem be solved using the distance formula?
djyliett [7]
Yes you need the distance formula to find the Base and height.
5 0
3 years ago
a student walks 50m on a bearing 0.25 degrees and then 200m due east how far is she from her starting point.​
Inessa05 [86]

Answer:

Step-by-step explanation:

I'm going to use Physics here for this concept of vectors. Here are some stipulations I have set for the problem (aka rules I set and then followed throughout the problem):

** I am counting the 50 m as 2 significant digits even though it is only 1, and I am counting 200 as 3 significant digits even though it is only 1. 1 sig dig doesn't really give us enough accuracy, in my opinion.

** A bearing of .25 degrees is measured from the North and goes clockwise; that means that measured from the x axis, the angle is 89.75 degrees. This is the angle that is used in place of the bearing of .25 degrees.

** Due east has an angle measure of 0 degrees

Now let's begin.

We need to find the x and y components of both of these vectors. I am going to call the first vector A and the second B, while the resultant vector will be C. Starting with the x components of A and B:

A_x=50cos(89.75) so

A_x=.22

B_x=200cos(0) so

B_x=200 and we need to add those results together. Due to the rules for adding significant digits properly, the answer is

C_x=200 (and remember I am counting that as 3 sig fig's even though it's only 1).

Now for the y components:

A_y=50sin(89.75) so

A_y=50 (which I'm counting as 2 sig fig's)

B_y=200sin(0) so

B_y=0 and we need to add those results together.

C_y=50

Now for the resultant magnitude:

C_{mag}=\sqrt{(200)^2+(50)^2}  and that gives us a final magnitude of

C_{mag}=206 m

Now for the angle:

Since both the x and y components of the resultant vector are in quadrant 1, we don't need to add anything to the angle to get it right, so

tan^{-1}(\frac{50}{200})=14

The girl is 206 meters from her starting point at an angle of 14 degrees

4 0
3 years ago
whats 10+1000-2+2600+9000+2= im in 7th grade im doing thia cheap question to give brainliest out and freinds so if want brainlie
frosja888 [35]

Answer:

12610

Step-by-step explanation:

7 0
3 years ago
Can somebody help me find y
Alex777 [14]

Answer:

y=-\frac{5x+9z}{7}, y=x-y+z=3, y=-8x+y=12

3 0
3 years ago
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