$\frac{2a}{a + b - c} = \frac{2b}{b + c - a} = \frac{2c}{a + c - b} = k \\ \\ by \: theorem \: on \: equal \: ratios \\ \\ \frac{2a + 2b + 2c}{a + b - c + b + c - a + a + c - b} = k \\ \\ \frac{2(a + b + c)}{a + b + c} = k \\ \\ \therefore \: k = 2$

5 0

3 years ago

A triangular sail has a base length of 2.5 meters.The area of the sail is 3.75 square meters.How tall is the sail?

love history [14]

Area of a triangle = 1/2 x base x height

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Find Height :
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3.75 = 1/2 x 2.5 x height

3.75 = 1.25 x height

height = 3.75 ÷ 1.25

height = 3 meters

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Answer: The height is 3 meters.
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7 0

3 years ago

please help me!!!!!!!!!!!!!

yKpoI14uk [10]

Let x be the length of each row.
Denver can plant 3 rows of a certain length with 2 seedlings leftover.
Total number of seeds he has = 3x+2 Denver can plant 4 rows of the same length with 3 seedling spots left empty.
Total number of seeds he has = 4x-3 Using (i) and (ii), we get= 3x+2=4x-3

Isolate variable terms: 2+3=4x-3
Answer= 5=X

5 0

3 years ago

Jace went shopping for a new phone. The listed price of the phone was $50, but the

sukhopar [10]

Answer:

1.50

Step-by-step explanation:

3 0

2 years ago