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ruslelena [56]
3 years ago
7

Please help me with these!

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0
No.4- This is not a triangle since one side should be less than the sum of the 2 other sides. In this case 8=3+5, hence it's equal & not smaller

N0.5- This is an isosceles triangle & there are an infinity of triangles with the mentioned degrees. (these are called similar triangle)

No6- This is a unique triangle

No.7- If the plane is parallel to the bases, then the slicing is a cercle.
 But if the plane (Parallelogram) is tilt, then the slicing is an ellipse

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4 times a number increased by 7 . Explain your answer if you can
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Step-by-step explanation:

4 times = 4x increased by 7 = 4x+7

4x + 7

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2 years ago
The range of this function
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Answer: C

Step-by-step explanation: The range of a function is all the outputs, or in this case all the values on the right side of the function. Therefore, we just look at what numbers are there and we find the range

 

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3 years ago
These two scalene triangles are similar with a scale of 4:5. What is true about these figures?
disa [49]

Alright, lets get started.

Lets check each possible answer one by one.

We will start from option B.

BC is from small triangle and its corresponding side is DF, so its ratio will be \frac{4}{5} not \frac{5}{4} as given in option. Hence option B is incorrect.

For option C,

Angle a° and angle f° are not similar angles, if they were similar, then only their ratio will be 1 otherwise not 1. Hence option C is incorrect.

For option D,

Angle c° and angle f° are similar angles so, their ratio will be \frac{c}{f}  = 1. Hence option D is incorrect.

Now option A,

ED and AB are corresponding sides. ED is from bigger triangle and AB is from smaller triangle. Their ratio will be \frac{ED}{AB} =  \frac{5}{4}. Hence option A is correct answer.

Hope it will help :)




6 0
2 years ago
Read 2 more answers
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Step-by-step explanation:

The solution to the system of equations can be represented as a point.

4 0
3 years ago
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