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3 years ago

A number y multiplied by —3 is less than

Mathematics

1 answer:

Aliun [14]3 years ago

5 0

Answer:

-3y < -2/5

Step-by-step explanation:

Multiplied means times

-3y

is less than means <

-3y < -2/5

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The diagram shows a rectangle ABCD. The point A is (2, 14), B is (−2, 8) and C lies on the x-axis. Find

Eva8 [605]

Answer:

Step-by-step explanation:

since AB and BC are perpendicular so AB.BC=0, (scalar product)

AB=(-4, -6), and BC=(xc+2, yc-8)

AB.BC= -4x-8-6y+48 =0

so the equation of BC is 2x+3y-20=0

C is on the line BC, so 2xc+3yc-20=0, but yc=0, so xc=20/2=10

AB and CD are parallel, so det(AB, CD)=0

AB and AD are perpendicular so AB.AD=0

AB=(-4, -6) and CD =(x-10, y), AD= (x-2, y-14)

det(AB, CD)=0

x-10-y = 0 equivalent to x-y = -10

AB.AD=0

-4x+8-6y+84=0 equivalent to 2x+3y=44

let's solve

x-y = -10

2x+3y=44

-5y = -64, y = 64/5, x= -10+64/5=14/5

finally D(14/5, 64/5)

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3 years ago

HELP PLEASE QUICKLY!!!! Thanks <3

lisabon 2012 [21]

first blank: 2

second blank: 9

third blank: 18

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3 years ago

Geometry boy yo please help

densk [106]

Answer:

x=12

Step-by-step explanation:

ab=dc so 15=x+3 you subtract 3 from both sides... x=12

4 0

3 years ago

Rewrite the following improper fraction as a decimal. 15/2. Im having trouble...

Aleksandr-060686 [28]

All you have to do is divide 15 by 7... the answer is 7.5

6 0

3 years ago

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Pls help due soon! worth 20 points

Pepsi [2]

<h3>given:</h3>

sides= 21 millimeters

the volume of the given cube.

<h3>solution:</h3>

$v = {a}^{3}$

$v = {21}^{3}$

$v = 9261 \: {mm}^{3}$

hence, the volume of the given cube is 9261 cubic millimeters.

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2 years ago

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