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3 years ago

I NEED HELP PLEASE PLEASE HELP ME !!!! :(

Mathematics

1 answer:

stepan [7]3 years ago

7 0

Answer:

( 3 , 25.5 )

Step-by-step explanation:

1. Plug in the equation of y into the first equation

2. Solve for x by merging together like terms from both sides

3. plug in x into the y equation

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Solve for x: 12-2x=-2(y-x)

a_sh-v [17]

12 - 2x = -2(y - x)

12 - 2x = -2y - (-2x)

12 - 2x = -2y + 2x

12 - 2x - 2x = -2y + 2x - 2x

12 - 4x = -2y

12 - 12 - 4x = -2y - 12

-4x = -2y - 12

-4x/4 = -2y/4 - 12/4

-x = -0.5y - 3

-x/-1 = -0.5y/-1 - 3/-1

x = 0.5y + 3

or

x = 3 + 0.5y

3 0

3 years ago

13. Greg is going into business selling homemade blankets.

Orlov [11]

Answer:

all positive inegers

Step-by-step explanation:

8 0

3 years ago

If f(x)=3x^3 then what is the area enclosed by the graph of the function, the horizontal axis, and vertical lines at x=2 and x=4

Ber [7]

Answer:

Area: 180 units2 (units 2 is because since the are no specific unit given but every area should have a unit of measurement)

Step-by-step explanation:

The area enclosed by the graph of the function, the horizontal axis, and vertical lines is the integral of the function between thos two points (x=2 and x=4)

So , let's solve the integral of f(x)

Area = $\int\limits^2_4 3{x}^3 \, dx = 3*x^4/4$ +C

C=0

So if we evaluate this function in the given segment:

Area= 3* (4^4)/4-3*(2^4)/4= 3*(4^4-2^4)/4=180 units 2

Goos luck!

5 0

2 years ago

Need help with number 22-23. Math hw

Rasek [7]

22. $31.25 divided by 25 = $1.25 for each ticket.

23. $1.50 times 5 = $7.50 to climb the rock wall.

4 0

2 years ago

Find the common factor and rewrite.

Tju [1.3M]

Answer:

8A + 11A = A(19)

Step-by-step explanation:

8A + 11A

= A(8 + 11) Factor out the common factor A

= A(19)

7 0

2 years ago