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Mrac [35]
3 years ago
6

What values of x and y satisfy the system of equations {3x+2y=14x=4y−2? infinitely many solutions (5011,1811) (1811,5011) no sol

ution (107,267) (267,107)
Mathematics
1 answer:
irinina [24]3 years ago
8 0
3x+2y=14x=4y-2

(x,y)=(1/4,11/8)
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Write a quadratic function in vertex form whose graph has the vertex
ELEN [110]

Answer:

y = \frac{1}{2}(x - 5)² - 2

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (5, - 2), thus

y = a(x - 5)² - 2

To find a substitute (7, 0) into the equation

0 = a(7 - 5)² - 2

0 = 4a - 2 ( add 2 to both sides )

2 = 4a ( divide both sides by 4 )

a = \frac{2}{4} = \frac{1}{2}

y = \frac{1}{2} (x - 5)² - 2 ← in vertex form

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3 years ago
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Answer:

x = 4

Step-by-step explanation:

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3 years ago
The sum of the digits of a certain two-digit number is 13. Reversing its digits decreases the number by 45. Find the number..
lesya [120]

Answer:

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5 0
3 years ago
What is the answer to 3/x-2 is ≥12
Tju [1.3M]

Answer:

The answer to your question is 0 < x ≤ 3/14

Step-by-step explanation:

Here are the steps to solve it.

First, you need to solve your inequality step-by-step:

3/x −2 ≥ 12

-2x + 3/x = ≥12

Next, find the critical points of the inequality:

2x + 3/x = 12

−2x + 3 = 12x (Multiply both sides by x)

−2x + 3 − 12x = 12x − 12x (Subtract 12x from both sides)

−14x + 3 = 0

−14x + 3 − 3 = 0 − 3 (Subtract 3 from both sides)

−14x = −3

-14x/ -14 = -3/ -14 (Divide both sides by -14)

So, that gives you your answer:

x = 3/14

3 0
3 years ago
K + 12 greater or equal than20, if k = 15
MrMuchimi

Answer:

"k+12" IS greater than 20. If in this hypothetical question.

Step-by-step explanation:

Please brailiest me

5 0
3 years ago
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