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Marat540 [252]
3 years ago
15

2-1+9/3+21-2/23+31-23=

Mathematics
1 answer:
igomit [66]3 years ago
7 0

Exact Form: 757/23

Decimal Form: 32.91304347....

Mixed Number Form: 32 21/23

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The answer is Vertical angles are equal.

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PLEASE HELP (algebra 1)
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A) 6(4)^1-6(4)^0 = 24-6 = 18
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b) It is 27.11 times difference. This is because g(x) is an exponential function and so as x increases, g(x) increases faster.
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Plz HURRY!!!
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Step-by-step explanation:

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the distance from the earth to the sun is about 93,000,000 miles. how many pennies would it take to make a stack that high? can
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Solve the system by using a matrix equation <br><br>7x-4y=4 <br><br>10x-6y=2
Andrei [34K]

Answer:

<h2>The solution to the system of equation is x = 8, y = 13</h2>

Step-by-step explanation:

The system of equation using matrix equation can be solved using crammers rule. Given the equation;

7x-4y=4

10x-6y=2

The equation will be rewritten in the format AX = B

matrix A will be 2*2 matrix

X will be a column matrix containing the variables

B will be a column matrix

\left[\begin{array}{cc}7&-4\\10&-6\\\end{array}\right] \left[\begin{array}{c}x&y\\\\\end{array}\right] = \right] \left[\begin{array}{c}4&2\\\\\end{array}\right]

first we will find the determinant of the matrix A

|A|=7(-6)-(10)(-4)\\|A|= -42+40\\|A|= -2

To get the value of x, we will substitute the column matrix at the right hand side to replace the first column pf matrix A, then we look for the determinant and divide the determinant by the determinant of matrix A itself.

|X|=\left[\begin{array}{cc}4&-4\\2&-6\\\end{array}\right]\\|X|= -24+8\\|X|=-16

x = |X|/|A|

x = -16/-2

x = 8

Similarly for y, we will substitute the column matrix at the right hand side to replace the second column of matrix A, then we look for the determinant and divide the determinant by the determinant of matrix A itself.

|Y|=\left[\begin{array}{cc}7&4\\10&2\\\end{array}\right]\\|Y|= 14-40\\|Y|=-26

y = |Y|/|A|

y = -26/-2

y = 13

The solution to the system of equation is x = 8, y = 13

3 0
3 years ago
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