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3 years ago

Lara wrote the following statement:

Mathematics

2 answers:

Viktor [21]3 years ago

7 0

Answer: C. Lara is incorrect, because more than one triangle can be drawn with the given information

Step-by-step explanation:

An isosceles triangle is a triangle which has only one pair of equal sides or equal angles.

Since, If one angle of isosceles triangle is 75°,

Then there are two possible cases,

Case 1: The angles of the triangles are 75°, 75° and 30°.

Case 2: The angles of the triangle are 75°, 52.5° and 52.5°.

Hence, she is incorrect because more than one triangle can be possible by the given information.

⇒ Option C is correct.

trapecia [35]3 years ago

4 0

<span>C. Lara is incorrect, because more than one triangle can be drawn with the given information.</span>

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Please help me photo include

nikklg [1K]

Answer:

$\frac{-117}{10}$

Step-by-step explanation:

1) Change the mixed fractions into improper fractions:

$-3\frac{1}{5} + (-8\frac{1}{2} )\\= \frac{-16}{5} - \frac{17}{2}$

2) Multiply the first fraction by 2/2 and the second fraction by 5/5 in order to create common factors on the denominator (You can do this because you are essentially multiplying by one, for example 2/2 = 1):

$\frac{-16}{5} *\frac{2}{2} - \frac{-17}{2} * \frac{5}{5} \\ =\frac{-32}{10} - \frac{85}{10}$

3) Simplify the numerator(top part) while keeping the denominator(bottom part) the same:

$\frac{-32}{10} -\frac{85}{10} \\\\=\frac{-32 - 85}{10}\\ \\= \frac{-117}{10}$

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Answer:

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Answer:

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Step-by-step explanation:

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