What is the nature of triangle formed by the lines x+y=0 , 3x+y=0 , x+3y-4=0
1 answer:
Answer:
isosceles obtuse triangle
Step-by-step explanation:
The attached graph shows a plot of the three lines.
The triangle is an isosceles obtuse triangle in the 2nd quadrant.
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It is convenient to let a graphing calculator plot these lines. If you're going to plot them by hand, it usually works best to choose values of the variables for the variable that has the largest coefficient (3 in two of the equations). That way, you're not trying to plot coordinates that contain fractions.
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Problem 1
Answer: Choice B. X is greater than or equal to 4
The closed circle at 4 indicates that this value is included in the solution set. So we will have an "or equal to" as part of the answer. The shading to the right suggests "greater than". Combine "greater than" and "or equal to" and we have a "greater than or equal to" sign.
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Problem 2
Everywhere is shaded but -4 on the number line. So x can be any number but -4. The answer isn't listed (probably got cut off), but it should be (x is not equal to -4). The slash through the equal sign means "not equal to"
answer : hundreds
3216 divided by 8 = 402
4 is in the hundreds places ( NOT HUNDREDTHS it is hundreds )
If you want to know what place 0 and 2 are in :
0 - tens
2 - ones
Hope This Helps :)
(the picture might help you, it is an example)
3216 divided by 8 = 402
4 is in the hundreds places ( NOT HUNDREDTHS it is hundreds )
If you want to know what place 0 and 2 are in :
0 - tens
2 - ones
Hope This Helps :)
(the picture might help you, it is an example)