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FrozenT [24]
3 years ago
6

Find two positive numbers who sum is S and the product is a maximum

Mathematics
1 answer:
zalisa [80]3 years ago
5 0
I find this question insufficient. Please be more specific. Imo every positive integer would fulfil your statement.
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4x-5y=13 10x+2y= 40 help
stepan [7]
14x-3y=53 is the answer. I put one equation over the other since there are two of them that needed to be solved

3 0
3 years ago
Solve the system of equations by graphing <br> y=-2x+2<br> y=-x
arsen [322]
That is the best graph I can get for the equations .

4 0
3 years ago
Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x^2 + 5x – 1.
just olya [345]

Answer:

The equation of the axis of symmetry is x = -\frac{5}{8}

The coordinates of the vertex are ( -\frac{5}{8} , -2\frac{9}{16} ) ⇒ 2nd answer

Step-by-step explanation:

The quadratic function y = ax² + bx + c is represented graphically by a parabola which has a minimum/maximum vertex (h , k), where

  • h = -\frac{b}{2a} and k is value y at x = h
  • The axis of symmetry of the parabola is a vertical line passes through the vertex point and its equation is x = h
  • The minimum/maximum value of the function is (h , k)

∵ y = 4x² + 5x - 1

∵ The form of the quadratic function is y = ax² + bx + c

∴ a = 4 , b = 5 , c = -1

∵ The coordinates of the vertex points are (h , k)

∵ h = -\frac{b}{2a}

∴ h = -\frac{5}{(2)(4)}=-\frac{5}{8}

- To find k substitute x in the function by -\frac{5}{8}

∵ k = 4 ( -\frac{5}{8} )² + 5( -\frac{5}{8} ) - 1

∴ k = 4 ( \frac{25}{64} ) + ( -\frac{25}{8} ) - 1

∴ k =  \frac{25}{16}  - \frac{25}{8}  - 1

∴ k = -2\frac{9}{16}

∴ The coordinates of the vertex are ( -\frac{5}{8} , -2\frac{9}{16} )

∵ The equation of the axis of symmetry is x = h

∵ h = -\frac{5}{8}

∴ The equation of the axis of symmetry is x = -\frac{5}{8}

7 0
3 years ago
Read 2 more answers
In constructing 98% confidence intervals for means, what do we expect will be true over the long run?
siniylev [52]

In constructing 98% confidence intervals for means, it is true that the statistic is good enough, and is less uncertain.

<h3>What is a confidence interval?</h3>

A confidence interval expresses the degree of uncertainty surrounding a given statistic. A margin of error is frequently used with confidence intervals. It reveals the degree to which you may be certain that the findings of a poll or survey correspond to what you would anticipate discovering if it were possible to poll the complete population. Levels of confidence are inextricably linked to confidence intervals.

Your level of confidence in your findings is shown by the confidence interval. You can never be certain that your results will hold for future surveys or experiments. In statistics, being 95% or 98.5% certain is typically seen as "good enough."

Learn more about confidence intervals here:

brainly.com/question/16974109

#SPJ4

8 0
1 year ago
What number is 250 percent of 60
navik [9.2K]
250% of 60 is 150.
100% = 60,
2x 100% = 120
50% = 30
120 + 30 = 150.
5 0
3 years ago
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