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Liula [17]
3 years ago
15

Solve the following system of equations using the substitution method.

Mathematics
2 answers:
ad-work [718]3 years ago
8 0
The answer is D, you can also use Socratic for this type of math lol !
saul85 [17]3 years ago
7 0
D should be the correct answer
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Choose the pair of numbers that is not a solution to the given equation.
balandron [24]

Answer:

The pair (0,3) is not a solution to the equation

Step-by-step explanation:

This can be proved by simply replacing the x and y variables in the equation by the x and y values of the pair, and checking if the equation renders a true statement:

By replacing x and y with their values in the pair (0,3), that is x=0 and y=3, in the equation y = 5 - 2x  we get:

3 = 5 - 2 (0)

3 = 5 - 0

3 = 5

which is NOT a true statement.

On the other hand, the other two pairs (2,1) and (1,3) render true statements:

1 = 5 - 2 (2)

1 = 5 - 4

1 = 1

and

3 = 5 - 2 (1)

3 = 5 - 2

3 = 3

3 0
3 years ago
Suppose f(x) = 2x-1 and g (x) = x + 1/a. Which value(s) of a would make the composite functions commutative? A. 0 B. 2 C. any va
Tamiku [17]

Answer:

2

Step-by-step explanation:

A commutative function means that when you insert one function in space of x in the other function, they will equal x. The equation is f(g(x)) = g(f(x)) = x

So, 2(\frac{x+1}{a}) - 1 = \frac{(2x-1)+1}{a}

If you multiply both sides by <em>a</em>, you get   2<em>a</em>(\frac{x+1}{a}) - a = (2x-1)+1

Simplify it                                                   2<em>a</em>(\frac{x+1}{a}) - <em>a</em> = 2x

Add <em>a</em> to both sides                                    2<em>a</em>(\frac{x+1}{a})  = 2x +<em>a</em>

The two <em>a</em>s on the left cancel out                   2(x+1)=2x+<em>a</em>

Distribute the 2                                               2x+2=2x+<em>a</em>

Then subtract 2x from both sides                        2 = <em>a</em>

Therefore, <em>a</em> = 2

Hope this helps!

8 0
3 years ago
Read 2 more answers
[ 64 (-8) ] (-2) help it’s for my quiz
Lana71 [14]

(64 \times ( - 8)) \times ( - 2)

( - 512) \times ( - 2)

1024

Therefore, the answer is <u>1</u><u>0</u><u>2</u><u>4</u><u>.</u>

<h3><em>Benjemin</em></h3>

3 0
3 years ago
Como resuelvo esto y=1+2(4/5)
laila [671]

Answer:

Es 2.6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve 4p^2 – p=0.<br> p=____, p=_____
Anon25 [30]

Answer:

p= 0

p= 1/4

............

8 0
2 years ago
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