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Alisiya [41]
3 years ago
14

LU 1- 2x + 3 < 5 and - 4x – 3 > 9​

Mathematics
2 answers:
Lynna [10]3 years ago
5 0

Answer: x>-1

               x<-3

Step-by-step explanation:

-2x+3

subtract 3 on both sides

-2x

divide -2 on both sides

x>-1

The sign changed because I divided by a negative.

-4x-3>9

add 3 on both sides

-4x>12

multiply -1 on both sides

4x

divide 4 on both sides

x

Brainlist please

choli [55]3 years ago
3 0

Answer:

x > -1

x < -3

Step-by-step explanation:

-2x + 3 < 5

Subtract 3 on both sides.

-2x < 5 - 3

-2x < 2

Divide -2 into both sides.

x < 2/-2

x > -1

-4x - 3 > 9

Add 3 on both sides.

-4x > 9+3

-4x > 12

Divide -4 into both sides.

x > 12/-4

x < -3

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A. Multiplication property

<u>B. Zero product property</u>

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a triangle has two sides of lenghts 7 and 12 what value could the length of the third side be check all that apply
Bond [772]
Third length =

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3 0
3 years ago
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14. Find the distance between (7,217pi/180 ) and (5,-23pi/36 ) on the polar plane.
irina [24]

Answer: the distance is  3.49 units

Step-by-step explanation:

There are some ways to find the exact distance, i will calculate the distance in rectangular coordinates.

When we have a point (R, θ) in polar coordinates, we can transform it into rectangular coordinates as:

x = R*cos(θ)

y = R*sin(θ)

Then we have:

(7,217pi/180 )

R = 7

θ = (217/180)*pi

x = 7*cos( (217/180)*pi) = -5.59

y = 7*sin( (217/180)*pi) = -4.21

So this point is (-5.59, -4.21) in rectangular coordinates.

And the other point is  (5,-23pi/36 )

R = 5

θ = -(23/36)*pi

x = 5*cos(  -(23/36)*pi ) = -2.11

y = 5*sin(  -(23/36)*pi ) = -4.53

So this point is (-2.11, - 4.53)

Then the point distance between those points is:

D = I (-2.11, -4.53) - (-5.59, -4.21) I

D = I (-2.11 + 5.59, -4.53 + 4.21) I

D = I (3.48, -0.32) I = √( (3.48)^2 + (-0.32)^2) =  3.49

4 0
3 years ago
Rob mixed 3.7 grams of salt into a pot of soup he was cooking. Before he served the soup, Rob added 0.5 grams of salt. How much
saul85 [17]

Answer:

4.2 grams in total

Step-by-step explanation:

<h2>Remember to line up the decimal point when adding numbers that contain decimals.</h2>

 3.7

+0.5

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 4.2                    

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3 years ago
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