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3 years ago

Marcus said the product of 7/8 × 1 3/4 is 9/4. How can you tell that his answer is wrong?

Mathematics

1 answer:

Paraphin [41]3 years ago

8 0

Gravity simply does not allow that

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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

3 0

3 years ago

Which line from "I'm Not Thirteen Yet" shows Jamie’s excitement as she plays soccer?

mixer [17]

Answer:

none of it

Step-by-step explanation:

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13/18 - 5/8 in simplest form Help!

sdas [7]

Answer:

7÷72

Step-by-step explanation:

First take lcm of the denominator

Then solve

(13*4-5*9)/73

52-45/72

7/72

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3 years ago

12r-5 61° R A) 790 C) 140° B) 70° D) 970

Yanka [14]

Answer:

79 because x = 7 so 12 x7 - 5 =79

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vladimir2022 [97]

You just have to look at the form of the equations

The only linear equations would be y = mx + b and Ax + By = C

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