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3 years ago

Explain tge distace formula. then use it to calculate the distance between A(1,1) and B(7,-7).

1 answer:

5 0

The distance formula is based on the Pythagorean Theorem:

Distance = Square Root [(X2 - X1)^2 + (Y2 - Y1)^2]
Distance = Square Root [(7 -1)^2 + (-7 -1)^2]
Distance = Square Root [ 6^2 + -8^2]Distance = Square Root [ 36 + 64 ]Distance = Square Root [100 ]Distance = 10
Source:http://www.1728.org/distance.htm

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jeka94

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or

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2 years ago

Solving for an Unknown Using the Distributive Property

ArbitrLikvidat [17]

Complete Question:

The equation a= 180(n-2)/n represents the angle measures, a, in a regular n-sided polygon. When the equation is solved for n, n is equal to a fraction with a denominator of a – 180. What is the numerator of the fraction?

Answer:

The numerator of fraction is -360

Solution:

Given that,

The equation represents the angle measures, a, in a regular n-sided polygon is:

$a = \frac{180(n - 2)}{n}$

We have to solve the equation for "n"

Rearrange the equation

$a \times n = 180(n - 2)\\\\a \times n = 180n - 360\\\\an - 180 n = -360\\\\Take\ n\ as\ common\ factor\\\\n(a-180) = -360\\\\n = \frac{-360}{a - 180}$

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2 years ago

Which set of numbers CANNOT represent the lengths of the sides of a triangle?

posledela

Answer:

Step-by-step explanation:

The general rule is that any 2 must exceed the third in order for a triangle to form. If any one is an exception, it won't work.

A will form a triangle. Any 2 exceeds the third.

B also forms a triangle. Same rule.

C does not work. 7 + 11 = 18 which is the value of the third leg.

D words Any two exceeds the 3rd.

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3 years ago