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bekas [8.4K]
2 years ago
11

Whats TWO equivalent expressions for 2(3j+ 5 + 6j). Rember TWO equivalent expressions not one.

Mathematics
1 answer:
Natalka [10]2 years ago
6 0

Answer:

2(9j+5) and 18j+10

Step-by-step explanation:

1) group like terms

2) distribute

please mark brainliest

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Natural numbers and counting numbers describe the same set of numbers Agree or disagree?
Alja [10]

Answer:

Agree

Step-by-step explanation:

They are the same group, just that they are referred to more as natural numbers.

7 0
2 years ago
Solve each system by substitution. Check your answers.<br> 4x+2y=7 , y = 5x
Kazeer [188]

By substitution, the solution of the system of equations, 4x + 2y = 7 and y = 5x, is (1/2 , 5/2).

A system of linear equations is a set of two or more equations which includes common variables. To solve system of equations, we must find the value of the unknown variables used in the equations that must satisfy both equations.

There are three methods that can be used to solve system of linear equations.

1. Elimination

2. Substitution

3. Graphing

Using substitution method, given two linear equations in x and y,

4x + 2y = 7     (equation 1)

y = 5x     (equation 2)

Since the second equation is already expressed in y in terms of x, substitute the second equation to the first equation.

4x + 2y = 7     (equation 1)

4x + 2(5x) = 7

4x + 10x = 7

Combining all terms containing the variable x on one side and the constants on the other side of the equality, and solving for x.

4x + 10x = 7

14x = 7

x = 1/2

Substitute the value of x in the second equation and solve for y.

y = 5x

y = 5(1/2)

y = 5/2

Hence, the solution of the given system of equations is (1/2 , 5/2).

To learn more about solving systems of equations: brainly.com/question/25869125

#SPJ4

5 0
11 months ago
The following are the temperatures of 10 days in winter in °C. -5, 1, -2, 7, -3, 9, 7, -5, -2, -5 Work out the mean temperature.
Citrus2011 [14]

Answer:

probably 0.2 and sorry if wrong

5 0
2 years ago
Read 2 more answers
I need help on this, can anyone please help me ?
Hoochie [10]

Answer:

I do not know the answer of this question

5 0
2 years ago
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2. State the domain for the following ordered pairs: { (4, -2), (6, -7), (4, 3), (-8, 1), (-3, 5) } *
Fofino [41]

Answer:

(4,6,4,-8,-3)

Step-by-step explanation:

Domain means of function is the set of all possible inputs for function

4 0
2 years ago
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