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Nostrana [21]
2 years ago
8

Y-3=4(x+2) solution for x and y please

Mathematics
2 answers:
kolbaska11 [484]2 years ago
6 0
The solution for X= 0 and for y= 4x+11
cluponka [151]2 years ago
5 0

Answer:

Solutions: (0,11) ; (1,15) ; (2, 19)

Step-by-step explanation:

y - 3 = 4(x +2)

y - 3 = 4x + 8

y = 4x + 8 + 3

y = 4x + 11

When x = 0 , y = 11                      (0,11)

When x = 1  ; y = 4 +11 = 15         (1, 15)

When x = 2 ; y = 8 + 11 = 19        (2 , 19

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Use the substitution method to solve the system of equations. Choose the correct ordered pair. 2x + 4y = 14 x = 3
Anna71 [15]
Because we have x = 3, we can substitute it. But first, let's convert 2x + 4y = 14 into y-slope intercept form.

2x + 4y = 14
Subtract 2x from both sides.
4y = -2x + 14
Divide both sides by 4.
y = -1/2x + 3.5

Now substitute.

y = -1/2(3) + 3.5
y = -1.5 + 3.5
y = 2

(3, 2)
4 0
3 years ago
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choli [55]
The answer of the question number 2 is D
8 0
3 years ago
Read 2 more answers
Determine whether the given function is a solution to the given differential equation. y=cosx+x8​, d^2y/dx^2 + y = x^8 + 56x^6.
Ulleksa [173]

The correct question is:

Determine whether the given function is a solution to the given differential equation. y = cosx + x^8; d²y/dx² + y = x^8 + 56x^6

Step-by-step explanation:

Given the differential equation

d²y/dx² + y = x^8 + 56x^6.

Suppose y = cosx + x^8 is a solution, then differentiating y twice, and adding it to itself, must give the value on the right hand side of the differential equation.

Let us differentiate y twice

y = cosx + x^8

dy/dx = -sinx + 8x^7

d²y/dx² = -cosx + 56x^6

Now,

d²y/dx² + y = -cosx + 56x^6 + cosx + x^8

= 56x^6 + x^8

Therefore,

d²y/dx² + y = x^8 + 56x^6

Which shows that y = cosx + x^8 is a solution to the differential equation.

4 0
3 years ago
What is the value of x?<br> Enter your answer in the box.
Law Incorporation [45]

Answer:

x=25

Step-by-step explanation:

3x-5=2x+20=4x-30

3(25)-5 = 2(25) + 20 = 4(25) - 30

75-5 = 50 + 20 = 100 - 30

70=70=70

7 0
2 years ago
Suppose you received a score of 95 out of 100 on exam 1 . The mean was 79 and the standard deviation was 8 . If your score on ex
Schach [20]

Answer:

You did the same on both exams.

Step-by-step explanation:

To compare both the scores, we need to compute the z scores of both the exams and then compare the values. The formula for z-score is:

<u>Z = (X - μ)/σ</u>

Where X = score obtained

           μ = mean score

           σ = standard deviation

For Exam 1:

Z = (95 - 79)/8

  = 16/8

<u>Z = 2</u>

For Exam 2:

Z = (90 - 60)/15

  = 30/15

<u>Z = 2</u>

<u>The z-scores for both the tests are same hence the third option is correct i.e. </u><u>you did the same on both exams.</u>

8 0
3 years ago
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