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3 years ago

-7y-4 = 4y×(8-6)-64 answer fast

Mathematics

1 answer:

mars1129 [50]3 years ago

4 0

Answer: y=4

Step-by-step explanation:

-7y-4=8y-64

-7y-4+4=8y-64+4

-7y=8y-60

-7y-8y=8y-60-8y

-15y= -60

$\frac{-15y}{-15}$ = $\frac{-60}{-15}$

y=4

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ivolga24 [154]

Answer:

LMN has a larger area

Step-by-step explanation:

Given

RST

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$S= (2,1)$

$T = (1,3)$

LMN

$L = (0,-1)$

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$N= (-2,-3)$

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

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

$Area = 7$

<em>By comparing both areas, we can conclude that LMN has a larger area</em>

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Answer:

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Step-by-step explanation:

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4 years ago

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Anvisha [2.4K]

Answer:

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Step-by-step explanation:

Given

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Required

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