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3 years ago

How do I solve this problem

Mathematics

1 answer:

Gnesinka [82]3 years ago

7 0

You have to multiply all the sides

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stich3 [128]

Step-by-step explanation:

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5 0

2 years ago

Match the like terms please!! giving brainliest to the right answer

evablogger [386]

Answer:

5x=256x

5xy= -xy

(3rd) -2x^2y=4x^2y(1st)

5y=3y

(5th) x^2y^2=(3rd) 2x^2y^2

(6th) 3y^2= 5y^2(5th)

Step-by-step explanation:

Hope you understand. Please mark as the brainliest.

5 0

2 years ago

Solve the system of equations.

guajiro [1.7K]

Answer:

<u>Option b. (x = 3, y = 20, z = -14)</u>

Step-by-step explanation:

Given:

2x + 2y + 3z = 4

5x + 3y + 5z = 5

3x + 4y + 6z = 5

Solve using Cramer’s rule

∴ $\left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] =\left[\begin{array}{ccc}4\\5\\5\end{array}\right]$

∴A = $\left[\begin{array}{ccc}2&2&3\\5&3&5\\3&4&6\end{array}\right] = -1$

Ax = $\left[\begin{array}{ccc}4&2&3\\5&3&5\\5&4&6\end{array}\right] = -3$

Ay = $\left[\begin{array}{ccc}2&4&3\\5&5&5\\3&5&6\end{array}\right] =-20\\$

Az = $\left[\begin{array}{ccc}2&2&4\\5&3&5\\3&4&5\end{array}\right] = 14$

∴ x = Ax/A = -3/-1 = 3

y = Ay/A = -20/-1 = 20

z = Az/A = 14/-1 = -14

<u>So, the answer is option b. (x = 3, y = 20, z = -14)</u>

4 0

3 years ago

I really need help quick I’ve been working this out for 1 hour already

wolverine [178]

Answer:

Step-by-step explanation:

Hope this helps

4 0

2 years ago

43 divided by 982 with remainder

Marina CMI [18]

The answer to this question is 22.83 but if you want it rounded its 22.84

4 0

2 years ago