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valkas [14]
4 years ago
8

Evaluate the expression

Mathematics
1 answer:
allsm [11]4 years ago
5 0
-1  . I think so don't count me on that
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Please help and explain! *Serious answers only* 30 points :)
topjm [15]
Ok so it's a proportion so this fraction is to this fraction. the smaller rectangle has sides 4 and 12. the larger one has 8 and x. so u set it up 4/12=8/x. the 4 and 8 r both the short sides so u want those on top and 12 and x r long sides so those on bottom. since that is not an answer option u can set it up as 8/4=x/12 because u still keep the variables of the same rectangle from being multipled with each other. so answer #2 is correct
4 0
4 years ago
Read 2 more answers
Which of these triangle pairs can be mapped to each other using two reflections? Triangles X Y Z and P Y T are connected at poin
Irina18 [472]

Answer:

The correct option is the first option;

Triangle XYZ and PYT are connected at point Y. Triangle XYZ is reflected across XY and then is reflected another time across YZ to form triangle PYT

Step-by-step explanation:

To answer the question we look at each option as follows;

1) The parameters given are triangle XYZ and PYT are connected at point Y

Triangle XY is reflected about XY will shift the marked angle from left to right while the right angle will remain at the same location and the triangle will remain upright to give triangle X'Y'Z'

Reflection about the YZ will give; the marked angle and the right angle in the same location and the vertex X will then be changed to P

Therefore, triangle XYZ can be mapped to triangle PYT with two reflections

2)  In the second option, we have triangle XYZ is reflected 3 times which is more than 2 times as in the question, therefore, option two is less suited as an answer to the question

3) Triangle XYZ is reflected across side XY and then is shifted down to form triangle AYT

Therefore, since we have only one reflection, option 3 is also not appropriate as an answer

4) In option 4 triangle XYZ is reflected and then rotated therefore option 4 is also not a correct option.

6 0
4 years ago
Read 2 more answers
Marie wants to space markers evenly along a 5 mile race course. She put a marker at the start line. How far apart should the 21
mel-nik [20]
The final marker would be 105 miles from the first marker. Hope this helped. (5x21=105)
5 0
3 years ago
Read 2 more answers
Expand the square (x + 4)2
Annette [7]
(x+4)^2
Expanded it is (x+4)(x+4)

To solve you need to distribute.
So x^2 +4x +4x +16
Then combine like terms..
x^2 +8x +16
8 0
3 years ago
The graph shows the distance, y, that a car traveled in x hours: A graph is shown with x axis title as Time in hours. The title
pentagon [3]

Answer:

I would say the answer would be y=25x

Step-by-step explanation:

Y=35x as in you increase 35 every time you go up on the graph

6 0
3 years ago
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