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3 years ago

Solve the system of equations. y = 9x y= 2x+56

Mathematics

1 answer:

nadya68 [22]3 years ago

5 0

Answer:

(8, 72)

Step-by-step explanation:

Here we have two separate equations for y: y = 9x and y = 2x + 56.

Equating these equations eliminates y temporarily; we get:

9x = 2x + 56, or 7x = 56. Dividing both sides by 7 results in x = 8.

Then, by the first equation, y = 9(8) = 72.

The solution is (8, 72).

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Possible

irina [24]

Answer:

about 520,000

Step-by-step explanation:

Following directions, we evaluate the equation by putting the value where the variable is and doing the arithmetic.

The value of x will be the number of days between May 26 and May 12. That value is ...

x = 26 -12 = 14

Then the number of mosquitos is estimated to be ...

y = 230,000(1.06^14) ≈ 520,008

About 520,000 mosquitos will inhabit the city on May 26.

_____

<em>Additional comment</em>

Typically, an "estimate" is one or two significant figures. So, 520,000 is a reasonable estimate. 520,008 has more precsision than can be justified.

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2 years ago

What is the average rate of change for this quadratic function for the interval fr x=2 to x=4?

myrzilka [38]

Answer:

0-4

derivate first

function is missing

substitute the value of X

8 0

2 years ago

If m(-12) =0 is the result of M(x) using the reminder theorem then what do -12 and 0 represent?

lions [1.4K]

Suppose we wish to determine whether or not two given polynomials with complex coefficients have a common root. Given two first-degree polynomials a0 + a1x and b0 + b1x, we seek a single value of x such that

Solving each of these equations for x we get x = -a0/a1 and x = -b0/b1 respectively, so in order for both equations to be satisfied simultaneously we must have a0/a1 = b0/b1, which can also be written as a0b1 - a1b0 = 0. Formally we can regard this system as two linear equations in the two quantities x0 and x1, and write them in matrix form as

Hence a non-trivial solution requires the vanishing of the determinant of the coefficient matrix, which again gives a0b1 - a1b0 = 0.

Now consider two polynomials of degree 2. In this case we seek a single value of x such that

Hope this helped, Hope I did not make it to complated

Please give me Brainliest

3 0

3 years ago

Calculate the volume of the rectangular solid if a = 5 meters, b = 3 meters and c = 2 meters. Express your answer in the appropr

astraxan [27]

Answer:

C) 30m3

Step-by-step explanation:

4 0

3 years ago

The function y = 4x + 3 describes Player A's

anyanavicka [17]

The rates of change of points earned by both players tell us that;

Player A gains more point than Player B does for each correct answer in this round.

We are told that x is the number of

number ofquestions answered correctly and y is the score.

Now, for player B;

For 1 correct answer, he got a score of 4

For 2 correct answers, he got a score of 5

For 3 correct answers, he got a score of 6

For 4 correct answers, he got a score of 7

This means that rate of change of Player B is;

3 points for every extra question answered correctly. .

Now, the formula for player A's points is;

y = 4x + 3

Rate of change of points here is gotten by finding the derivative. Thus;

dy/dx = 4

This means player A earns 4 points for every extra question answered correctly.

In conclusion, it mean that Player A gains more point than Player B does for each correct answer in this round.

Read more on slope intercept form of equation at; brainly.com/question/19249035

5 0

2 years ago