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xenn [34]
2 years ago
14

Determine whether the pair of lines is​ parallel, perpendicular, or neither.

Mathematics
1 answer:
AVprozaik [17]2 years ago
3 0

Answer:

b. the two lines are perpendicular

Step-by-step explanation:

carry on learning

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A woman wishes to rent a house within 9 miles of her work. If she lives x miles from her work, her transportation cost will be c
I am Lyosha [343]

Answer:

the woman has to live 1 mile from work to minimize the expenses

Step-by-step explanation:

Given the data in the question;

the distance within 9 miles ⇒ 0 < x > 9

Total costs Q = cx + 4c/( x + 1)

costs should be minimum  ⇒ dQ/dx = 0

⇒ d/dx [ cx + 4c/( x + 1) ] = 0

⇒ ( x + 1)² = 4

take square root of both side

√[ ( x + 1)² ] = √4

x + 1 = 2

x = 2 - 1

x = 1

Therefore, the woman has to live 1 mile from work to minimize the expenses

5 0
3 years ago
4. A triangle with base (2x+2) and height (x-2) is cut out of a rectangular sheet of paper that is (3x+4) by (2x+3) what is the
juin [17]
So what we do is
area that remains=total area-triangle area that was cut out


we need to find 2 things
total area
triangle area

total area=rectange=base times height
area=(3x+4) times (2x+3)
FOIL or distribute
6x^2+8x+9x+12=6x^2+17x+12

triangle area=1/2 times base times height
triangle area=1/2 times (2x+2) times (x-2)=
(x+2) times (x-2)=x^2+2x-2x-4=x^2-4


so
total area=6x^2+17x+12
triangle area=x^2-4

subtract
area that remains=total area-triangle area that was cut out
area that remains=6x^2+17x+12-(x^2-4)=
6x^2+17x+12-x^2+4=
6x^2-x^2+17x+12+4=
5x^2+17x+16


area that remains is 5x^2+17x+16

5 0
2 years ago
Find mZCBA.<br> A<br> B<br> 49°<br> с
vivado [14]

AB=BC=>\angle A=\angle C=49а\\\angle CBA=180а-\angle A-\angle C=180а-49а-49а=82а

4 0
2 years ago
Carly went shopping and bought a pair of pants for $25.00. She also purchased a shirt for $35.00, They were on sale for 20% off.
Anna007 [38]

Answer:

The answer is $12

Step-by-step explanation:

Multiply each price by 20% (0r .2) then add them. OR

Add each price then multiply them by 20$ (or .2)

Hoped this helped!

7 0
2 years ago
If the tree is 25 feet tall , what is the angle of depression to his friend
Anarel [89]

Answer:

15

Step-by-step explanation:

3 0
2 years ago
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