All categories

3 years ago

What are the solutions to the following system of equations? Select the correct answer below.

Mathematics

1 answer:

kotegsom [21]3 years ago

6 0

Answer:

Step-by-step explanation:

we can conclude from the second equation that when

2x + y = 6 then y = 6 - 2x. so instead of y in the first equation we use 6 - 2x.

now the equation would look like this : 6 - 2x = x^2 - 4x + 3 .

then we bring everything to one side of the equation : x^2 - 2x - 3 .

now we'll have two results for x ( because x^2 - 2x - 3 = 0 has 2 answers )

one of them is -1 and other one is 3.

if we put them in the first equation we will have 8 and 0 for y.

so A is the answer

You might be interested in

What percent of a is b?<br> Please put your answer in percent.

just olya [345]

Answer:

If you know two number a and b and need find, b is what percentage of a, P=b

- 100%

4 0

3 years ago

Rewrite each item as an equivalent expression in exponential notation. <br> 5^6x5^9

TiliK225 [7]

5^6 * 5^9

= 5^(6 + 9)

= 5^15 <----- this is the answer

I hope this helps. =)

5 0

3 years ago

Which is the best approximation for the measure of angle ABC?

qwelly [4]

Answer:

58.3°

Step-by-step explanation:

Missing Information:

In this question the diagram is missing Following are the attachment of diagram of the given question.

As we seen that the vertex c is making the right angle i,e 90° also there is an acute angle the Hypotenuse: 20 cm and the perpendicular is 10.5 cm

Now we have find the best approximation of the angle ABC used the cosx trigonometric function.

$cos\ x\ =\ \frac{perpendicular}{Hypotenuse} \\$

Putting the value of perpendicular and hypotenuse in the previous formula we get

$cos\ x\ =\ \frac{10.5\ cm}{20\ cm} \\$

$x\ =cos^{-1}\ 0.525\\x \ = \ 58.33$

8 0

3 years ago

Someone plz help me i will give brainliest just

andreev551 [17]

Answer:

5) y = 3x + 1

6) For this question, I would just draw a line that is increasing, and then once it reaches 10 mins I would make a steep line going downward. Something like this: /\

7) Yes, Raoul is correct because Function A's initial value is 0 and function B's initial value is 3.

8 0

3 years ago

Read 2 more answers

Vvv Please help vvv<br><br> Find the value of x.

LenKa [72]

X=15. This is the Altitude theorem which is Altitude/Part = Altitude/Other part. In this question you would set up the proportion 9/X = X/25 and multiply cross products to get 225=X^2. Then you undo X^2 by doing the square route of 225 and then you get 15 as the final answer.

7 0

3 years ago