3 years ago

74/80 as a decimal?????

Mathematics

1 answer:

scZoUnD [109]3 years ago

8 0

The answer is 74/80 = .925 (.93)

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On a coordinate plane, triangles R S T and L M N are shown. Triangle R S T has points (5, 5), (2, 1), and (1, 3). Triangle L M N

ivolga24 [154]

Answer:

LMN has a larger area

Step-by-step explanation:

Given

RST

$R =(5,5)$

$S= (2,1)$

$T = (1,3)$

LMN

$L = (0,-1)$

$M= (2,-4)$

$N= (-2,-3)$

Required

Compare both areas

The area of triangle is:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|$

For RST, we have:

$Area = \frac{1}{2}|5*1 - 2*5 + 2*3 - 1*1 + 1*5 - 5*3|$

$Area = \frac{1}{2}|-10|$

Remove absolute signs

$Area = \frac{1}{2}*10$

$Area = 10$

For LMN, we have:

$Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 + x_3y_1 - x_1y_3|$

$Area = \frac{1}{2}|0*-4-2*-1+2*-3--2*-4--2*-1-0*-3|$

$Area = \frac{1}{2}|-14|$

Remove absolute signs

$Area = \frac{1}{2}*14$

$Area = 7$

By comparing both areas, we can conclude that LMN has a larger area

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2 years ago

What is the least common denominator of the rational expressions below? 5/x2 - 3/6x2 + 12x

dangina [55]

Answer:

The answer is c

Step-by-step explanation:

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jenyasd209 [6]

Answer:

15x square units

Step-by-step explanation:

3x x 5 =

15x square units

Hope that helps!

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Step-by-step explanation:

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3 years ago

Factor completely. a^2 - 25b^2

pshichka [43]

Hello :
Factor completely. a^2 - 25b^2 :
a²-25b²=a²-(5b)² = (a-5b)(a+5b)

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3 years ago