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IRINA_888 [86]
3 years ago
8

This is question #4, thanks :)

Mathematics
1 answer:
cestrela7 [59]3 years ago
3 0

B because i have to write more than 20 characters to answer our question.

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Which properties justify the steps taken to solve the system? {3x−2y=10 4x−3y=14
Alexeev081 [22]
The answer is: Substitution property of equality.

 The explanation is shown below:

1. To solve this problem you must apply the proccedure shown below:

 2. When you clear the variable x from the first equation, and subtitute it into the second equation, you obtain:

 <span>3x−2y=10
 x=(10+2y)/3

 4x−3y=14
 </span>4[(10+2y)/]−3y=14
<span> y=-2

 3. When you subsitute y=-2 into the first equation and clear the x, you have:

 x=2
 </span>
7 0
3 years ago
Read 2 more answers
The fifth through the eighth terms of a geometric sequence are given by a5 = 80, a6 = 160, a7 = 320, a8 = 640. Which formula can
Ganezh [65]

hlo I am ram and my frn is shyam how are you I am also fine here

3 0
3 years ago
Solve the linear equation:<br><br> 3.4 + 2(9.7 – 4.8x) = 61.2
Ganezh [65]

Answer:

- 4

Step-by-step explanation:

(2*(Rationalize(9.7)-Rationalize(4.8x)))==Rationalize(61.2)-Rationalize(3.4)

Rationalize(18.4)-Rationalize(2.8x)

==Rationalize(57.8)

-Rationalize(2.8x)==Rationalize(57.8)-Rationalize(18.4)

x= 38.4÷-2.8

:x= -4

7 0
3 years ago
Find the solutions of the equation f(x)=(x+3)(x-b)
Lapatulllka [165]
The answer for this solution is D
-3 and b
5 0
3 years ago
Help please thank you
anzhelika [568]

Answer:

g(1) = -6

Step-by-step explanation:

g(x) = -2x^2 - 4x

You want to solve for g(1). To do this make every x value in the original equation become 1.

g(1) = -2(1)^2 - 4(1)

Evaluate the exponent.

g(1) = -2(1) - 4(1)

Multiply.

g(1) = -2 - 4

Subtract.

g(1) = -6

4 0
4 years ago
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