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kvv77 [185]
2 years ago
14

I need help for question

Mathematics
2 answers:
Drupady [299]2 years ago
7 0

Answer:

C

Step-by-step explanation:

The money has to be either less than or equal to $50, since the sentence says each lunch that means that's the cost for a lunch for each friend, and the $4 dessert is an item that costs money, therefore adding the cost to the lunch.

Roman55 [17]2 years ago
4 0
The answer for your question is gonna be the letter C
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HELP!!! RST has vertices R(-3, - 1), S(0,3), and t(3,0). What type of triangle is RST?
VladimirAG [237]
<h3>Answer: C) scalene</h3>

======================================================

Explanation:

Use the distance formula to calculate the distance from R to S. This is identical to the length of segment RS.

R = (x_1,y_1) = (-3,-1) \text{ and } S = (x_2, y_2) = (0,3)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(-3-0)^2 + (-1-3)^2}\\\\d = \sqrt{(-3)^2 + (-4)^2}\\\\d = \sqrt{9 + 16}\\\\d = \sqrt{25}\\\\d = 5\\\\

Segment RS is exactly 5 units long.

-----------------------

Repeat similar steps to find the length of segment ST

S = (x_1,y_1) = (0,3) \text{ and } T = (x_2, y_2) = (3,0)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(0-3)^2 + (3-0)^2}\\\\d = \sqrt{(-3)^2 + (3)^2}\\\\d = \sqrt{9 + 9}\\\\d = \sqrt{18}\\\\d \approx 4.2426\\\\

ST is roughly 4.2426 units long.

------------------------

Lastly, let's calculate the length of segment TR.

T = (x_1,y_1) = (3,0) \text{ and } R = (x_2, y_2) = (-3,-1)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(3-(-3))^2 + (0-(-1))^2}\\\\d = \sqrt{(3+3)^2 + (0+1)^2}\\\\d = \sqrt{(6)^2 + (1)^2}\\\\d = \sqrt{36 + 1}\\\\d = \sqrt{37}\\\\d \approx 6.0828\\\\

TR is about 6.0828 units long.

------------------------

Summary of the segment lengths:

  • RS = 5 exactly
  • ST = 4.2426 approximately
  • TR = 6.0828 approximately

The three sides are different lengths.

Therefore, the triangle is <u>scalene</u>.

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2 years ago
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