3 years ago

X+2y = −4 I forgot how to do the problem

Mathematics

2 answers:

enot [183]3 years ago

7 0

Solving for X it would be
X=-4-2y
Solving for Y it would be
Y=-2-x/2

Zarrin [17]3 years ago

5 0

Answer:

x= -6 y=1

Step-by-step explanation:

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Phoenix [80]

Answer:

Since i don't know what formula is mentioned. I just used the easiest way to solve :)

Step-by-step explanation:

$(3x^2 + 3)^3 = (3x^2)^3 + 3^3 + 3((3x^2)^2)(3) + 3(3x^2)(3^2)$

$= 27x^6 + 27 + 3(9x^4 \times 3) + 3(3x^2 \times 9)\\\\=27x^6 + 27 + 81x^4 + 81x^2\\\\=27x^6 + 81x^4 + 81x^2 + 27\\\\$

$\int\limits {(3x^2+3)^3} \, dx = \int\limits {27x^6 + 81x^4+81x^2 + 27} \, dx$

$= \frac{27}{7}x^7 + \frac{81}{5}x^5+\frac{81}{3}x^3 + 27x +C\\\\= \frac{27}{7}x^7 + \frac{81}{5}x^5+27x^3 + 27x +C\\\\$

8 0

2 years ago

HELP PLEASE!! <3 A rectangle has vertices (w,v), (w,z), and (z,z). Find the fourth vertex.

Vaselesa [24]

Answer:

Hey, Try practiceing on your own

Step-by-step explanation:

8 0

2 years ago

Who knows the area of this ? #struggleatmath

photoshop1234 [79]

I think it’s 6. There are 4 squares and 4 triangles. 2 triangles put together turn into a square, so that would make 2 extra squares. 4+2=6.

8 0

3 years ago

12.6 + 4m = 9.6 + 8m

Sergeu [11.5K]

Answer:

3 = 4m or 0.75 = m

Step-by-step explanation:

12.6 + 4m = 9.6 + 8m

Subtract 4m from both sides of the equation

12.6 = 9.6 + 4m

Subtract 9.6 from both sides of the equation

3 = 4m

Divide by four on both sides of the equation

0.75 = m

I Hope That This Helps! :)

7 0

2 years ago

Read 2 more answers

Solve for r. 7(r + 1) = 20.3

docker41 [41]

Answer:

r = 1.9

Step-by-step explanation:

7r + 7 = 20.3

- 7 - 7

7r = 13.3

divide by 7

r = 1.9

4 0

2 years ago

Read 2 more answers