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Tema [17]
3 years ago
10

X + 2y = 5

Mathematics
2 answers:
malfutka [58]3 years ago
7 0
C.) 5 is the value of X and the value of Y is 5/2
Arada [10]3 years ago
6 0

Answer:  The correct option is (a). - 5.

Step-by-step explanation:  We are given to find the value of the system determinant for the following system of linear equations :

x+2y=5,\\\\x-3y=7.

The system determinant for the above system is written as

\begin{vmatrix}1 & 2\\ 1 & -3\end{vmatrix}

And, its value will be

\begin{vmatrix}1 & 2\\ 1 & -3\end{vmatrix}=1\times (-3)-2\times 1=-3-2=-5.

Thus, the required value is - 5.

Option (a) is CORRECT.

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Use a form of the distributive property to rewrite the given algebraic expression without parentheses. 2(3x-3)
guajiro [1.7K]

Answer:

6x-6

Step-by-step explanation:

The Distributive property says that a(b+c) = ab+ac

In my example you distribute the value on the outside to the things on the inside

In your problem you have a two on the outside that needs to be distributed to a 3x and a -3

1) 2 multiplied by 3x equals 6x giving you the first part of your answer!

2) 2 multiplied by -3 equals -6 giving you the second part of your answer!

Don't forget that there is a - sign between the 3x and 3, don't drop it!

Put the two values together to get 6x-6

Let me know if you have any further questions :)

7 0
4 years ago
In the figure below, what is the length of AD?
maksim [4K]
Find the inside angle B of the smaller triangle using the base (4) and height (6)
smaller part of B =  arctan(4/6) = 33.69 degrees
 full B = 90 degrees - smaller B gives you the other part of B for the left hand side

so 90 - 33.69 = 56.31

now AD =  6 x tan(56.31) = 9 feet
 answer is G





5 0
4 years ago
How many solutions does the equation -2y+2y+3=3have?
Leya [2.2K]

Answer:

multiple, bc if u solve it its all real numbers

Hope This Helps!  Have A Nice Day!!

6 0
3 years ago
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NNADVOKAT [17]
Answer: 15% of 13.80 = 1.95
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3 years ago
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hope this helps :)
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