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VMariaS [17]
3 years ago
10

What is the square root function?

Mathematics
1 answer:
Marina86 [1]3 years ago
5 0

Answer:

f(x) = \sqrt{x}

Step-by-step explanation:

hope this helped :-)

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What is the relationship between the discriminant of a quadratic and its graph?
faltersainse [42]

Answer:

In a quadratic equation of the shape:

y = a*x^2 + b*x + c

we hate that the discriminant is equal to:

D =  b^2 - 4*a*c

This thing appears in the Bhaskara's formula for the roots of the quadratic equation:

x = \frac{-b +-\sqrt{b^2 - 4ac} }{2a}

You can see that the determinant is inside a square root, this means that if D is smaller than zero we will have imaginary roots (the graph never touches the x-axis)

If D = 0, the square root term dissapear, and this implies that both roots of the equation are the same, this means that the graph touches the x axis in only one point, wich coincides with the minimum/maximum of the graph)

If D > 0 we have two different roots, so the graph touches the x-axis in two different points.

4 0
3 years ago
How many roots does the equation -2x^3 = 0 have?<br> 3<br> 2<br> 1<br> 0
artcher [175]
3 sorry if it is wrong but have a good day
3 0
3 years ago
Read 2 more answers
andy was given data to draw 3 scatter diagrams B , which line of best fit should have not been drawn explain your answer
Lemur [1.5K]

Answer:

A line of best fit can only be drawn if there is strong positive or negative correlation. The line of best fit does not have to go through the origin. The line of best fit shows the trend, but it is only approximate and any readings taken from it will be estimations.

Step-by-step explanation:

5 0
3 years ago
A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 8% of t
oee [108]

Answer:

The Probability = 0.20

Step-by-step explanation:

From the question stated, the first step to take is to find probability that an employee selected at random will need either eyeglasses or major dental work

Solution

Given

Now,

The exams showed tha the number of employees needed eyeglasses = 8%

Employees that needed major dental work = 15%

Employees that needed  both eyeglasses and major dental work =3%

Thus,

The P(needed eyeglasses ) = 8% = 0.08

P(major dental work) = 15% = 0.15

P(eye glasses  and major dental work) = 3% = 0.03

The probability that an employee selected at random will need either eyeglasses or major dental work is  given as

= P(eye glasses ) + P(major dental work) - P(eyeglasses and major dental work)

= 0.08 + 0.15 - 0.03 = 0.20

Therefore the Probability = 0.20

5 0
3 years ago
For the following trapezoid, h = 5 ft, b = 7.9 ft, and B = 14.6 ft. What is the area? ​
Bond [772]

Answer:

The area of the trapezoid is 56.25² feet.

Step-by-step explanation:

The formula for the area of a trapezoid is A=\frac{b+B}{2} h

  • A = area (of the trapezoid)
  • b = base of the trapezoid
  • B = (other) base of the trapezoid
  • h = height of the trapezoid

*Note: Trapezoids have 2 bases that are parallel to one another, but are not always the same length.

Using the information given to us, we can simply plug in numbers into the equation. By doing so, we'd get A=\frac{7.9+14.6}{2} 5. By plugging this into a calculator, you'd get A=56.25.

3 0
2 years ago
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