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Masteriza [31]
3 years ago
14

Can anyone solve this x + 2 ( x + 2 + ( 2 x − 8 ) ) = x + 1 + ( 2 x − 5 ) x + 2 ( x + 2 + ( 2 x - 8 ) ) = x + 1 + ( 2 x - 5 )

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
5 0

Answer:

simplify the equation to solve it, remove unnessecary parentheses and spaces.

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Ben is making math manipulatives to sell. He wants to make at least $450. Each manipulative costs $18 to make. He is selling the
lys-0071 [83]
7 is the answer because 7 is great and is always the answer

6 0
3 years ago
Determine the range of the following graph:
Allushta [10]

Answer:

Determine the range of the following graph:

12

11

O

10

9

8

7

6

5

NA

Step-by-step explanation:

(f+g)(x)

f(x)= x-3, g(x)= 2x+8

8 0
2 years ago
In a certain region of space, the potential is given by v=2x−5x2y 3yz2. How much is the magnitude of the electric field at point
Masja [62]

The magnitude of the electric field at the point (-2, 2, 0) is 46.52 V/m

<h3>How to calculate the electric field?</h3>

Since in a certain region of space, the potential is given by v = 2x − 5x²y 3yz²,

The electric field, E = -grad(V) where grad(V) = (dV/dx)i + (dV/dy)j + (dV/dz)k

Since V = 2x − 5x²y + 3yz²

dV/dx = d(2x − 5x²y + 3yz²)/dx

= d2x/dx - d5x²y/dx + d3yz²/dx

= 2 - 10xy + 0

= 2 - 10xy

dV/dy = d(2x − 5x²y + 3yz²)/dy

= d2x/dy - d5x²y/dy + d3yz²/dy

= 0 - 5x² + 3z²

=  - 5x² + 3z²

dV/dz = d(2x − 5x²y + 3yz²)/dz

= d2x/dz - d5x²y/dz + d3yz²/dz

= 0 - 0 + 6z

=  6z

<h3>The electric field</h3>

So, E = -grad(V)

= -[(dV/dx)i + (dV/dy)j + (dV/dz)k]

= -[(2 - 10xy)i + (- 5x² + 3z²)j + (6z)k]

So, the electric field at (-2, 2, 0) is

E = -[(2 - 10xy)i + (- 5x² + 3z²)j + (6z)k]

E = -[(2 - 10(-2)(2))i + (- 5(2)² + 3(0)²)j + (6(0))k]

E = -[(2 + 40)i + (- 5(4) + 0)j + (0)k]

E = -[42i + (-20 + 0)j + (0)k]

E = -[42i - 20j + 0k]

E = -42i + 20j - 0k

<h3>The magnitude of the electric field</h3>

So, the magnitude of E at (-2, 2, 0) is

|E| = √[(-42)² + 20² + 0²]

=  √[1764 + 400 + 0]

= √2164

= 46.52 V/m

So, the magnitude of the electric field at the point (-2, 2, 0) is 46.52 V/m

Learn more about electric field here:

brainly.com/question/25751825

#SPJ12

3 0
2 years ago
Which statement is modeled by the expression?
Afina-wow [57]
A librarian has 150 books to be placed on shelves with an equal number of books on each shelf. If k is the number of shelves to be used, then 150/k is the number of books on each shelf.

Example : lets say there are 10 shelves.....so k = 10
150/10 = 15 books on each shelf.
4 0
3 years ago
Read 2 more answers
The area of a rectangle is 479.4 square feet. The width of the rectangle is 17 feet.
Katarina [22]

The answer is 28.2 because 479.4 ft. ÷ 17 ft. = 28.2 ft.

5 0
3 years ago
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