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2 years ago

Compute the discriminant. Then determine the number and type of solutions for the given equation.

Mathematics

1 answer:

Neporo4naja [7]2 years ago

7 0

Answer:

Step-by-step explanation:

It's two unequal real solutions.

a = 1

b = 7

c = 6

discriminate = sqrt(7^2 - 4*1*6)

discriminate = sqrt(49 - 24)

discriminate = sqrt(25)

discriminate = 5

Now you cannot determine what this means unless you put it in the quadratic formula

x = (-7 +/- 5)/2

x = (- 7 + 5) / 2

x = - 2/2 = - 1

x = (-7 - 5)/2

x = -12/2

x = - 6

You see that you have two unequal reals.

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A data display appears skewed to the right so? A) most of the data will be located on the left side of the display B) there are

Evgen [1.6K]

Answer:

Step-by-step explanation:

A data display appears skewed to the right so there are extreme values in the right tail of the display. Hope this helps!

8 0

3 years ago

A rectangular pool is 20 feet wide and 50 feet long. A deck used for sunning surrounds the pool. The deck is the same width all

rodikova [14]

Answer:

3 feet

Step-by-step explanation:

Let x represent the width of the deck. The deck adds to the pool dimensions on both sides, so the area of the site including pool and deck will be ...

A = (20 +2x)(50 +2x) = 1000 +140x +4x^2

The area of the pool alone is

A = (20)(50) = 1000

So, the area of the deck is the difference:

456 = (4x^2 +140x +1000) -(1000)

Dividing by 4 and subtracting 114, we have ...

x^2 +35x -114 = 0

(x -3)(x +38) = 0

Solutions to this are x = 3 and x = -38. The positive solution is the one of interest.

The deck is 3 feet wide.

4 0

2 years ago

What is the value of 36X negative Y over to when X equals three and Y equals -6

Rus_ich [418]

Note:

Your question is a little unclear. But, from my understanding, I assume you may be asking the evaluation of the expression 36x - y when x = 3 and y = -6.

so I will solve based on my assumption which anyways would clear your concept.

Answer:

The value of 36x - y when x = 3 and y = -6 will be: 114

Step-by-step explanation:

Given

Assuming the expression

36x - y

To Determine

Evaluate 36x - y when x = 3 and y = -6

Given the expression

$36x - y$