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max2010maxim [7]
3 years ago
12

The measure of the obtuse angle in the isosceles triangle is two and a half times the measure of one base angle. Write and solve

a system of linear equations to find the measures of all the angles.
Mathematics
1 answer:
natta225 [31]3 years ago
8 0
Let the base angle be x. If the obtuse angle is two and a half times the base angle, it will be 2.5x. In a triangle, all three angles will add up to 180. The third angle, the other base angle will be equal to x. So the equation will be:

x + x + 2.5x = 180
2x + 2.5x = 180
4.5x = 180
x = 40

If x = 40, then 2.5x = 100

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Answer:

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Step-by-step explanation:

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vitfil [10]

Answer:

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Step-by-step explanation:

5m2- 15m- 200

Start by pulling 5 out.

5(m^2 - 3m - 40)

We consider all factors of 40  

1    40

2   20

4    10

5     8

Based on the middle term we know that 5   and 8 are our best option.

5(m     5) (m     8)

We know the signs have to be one + and one -  because a - * - = + and + * + = +

Since 5 - 8 would give us -3 we know that our answer is

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NARA [144]

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FALSE

Step-by-step explanation:

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8 0
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marshall27 [118]

Answer:

\frac{9}{10}

Step-by-step explanation:

The slope formula is  m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Here, x_{1} is -6, x_{2} is 4, y_{1} is -5, and y_{2} is 4.

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So, the slope of the line passing through the points (-6,-5) and (4,4) is \frac{9}{10}.

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3 years ago
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