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koban [17]
3 years ago
10

What are the roots of the equation x2 – 14x + 74 = 0 in simplest a + bi form?

Mathematics
1 answer:
velikii [3]3 years ago
8 0

\huge\text{Hey there!}

\large\text{Use these formulas to solve for this equation.}\\\\\\\mathsf{ax^2 + bx + c = 0}\\\\\\\mathsf{x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}}

\mathsf{x^2-14x + 74= 0}

\mathsf{1x^2 + (-14x) + 74= 0}

\large\text{Whereas, a = 1, b = -14, \& c = 74}

\mathsf{x =\dfrac{-(-14)\pm \sqrt{(-14)^2 - 4(1)(74)}}{2(1)}}

\mathsf{-(-14) = \bf 14}\\\\\mathsf{(-14)^2-4(1)(74)=\bf -100}

\mathsf{x = \dfrac{14\pm \sqrt{-100}}{2}}

\boxed{\boxed{\large\textsf{Answer: \huge \bf No real solutions}}}\huge\checkmark

\large\text{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

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A campground says campers can rend a square space taking up 225 square feet. How long would one side of the space be?
Helga [31]

Answer:

56.25 ft

Step-by-step explanation:

It is simple, since it is a square the sides are all the same length so you take A=area and divide it by four= h or w or l (height, width, length) so

225/4=56.25

3 0
3 years ago
LCM of x<sup>2</sup>+5x+6 and x<sup>2</sup>-x-6 is ………………………
sergejj [24]

Answer:

(x^2 - 9)(x + 2)

Step-by-step explanation:

Given:

x^2 + 5x + 6

x^2 - x - 6

Required:

LCM of the polynomials

SOLUTION:

Step 1: Factorise each polynomial

x^2 + 5x + 6

x^2 + 3x + 2x + 6

(x^2 + 3x) + (2x + 6)

x(x + 3) + 2(x + 3)

(x + 2)(x + 3)

x^2 - x - 6

x^2 - 3x +2x - 6

x(x - 3) + 2(x - 3)

(x + 2)(x - 3)

Step 2: find the product of each factor that is common in both polynomials.

We have the following,

x^2 + 5x + 6 = (x + 2)(x + 3)

x^2 - x - 6 = (x + 2)(x - 3)

The common factors would be: =>

(x + 2) (this is common in both polynomials, so we would take just one of them as a factor.

(x + 3) and,

(x - 3)

Their product = (x - 3)(x + 3)(x +2) = (x^2 - 9)(x + 2)

4 0
3 years ago
Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles. C = 71°, a = 27, c = 26
guajiro [1.7K]

We have

SinC/ c  = Sin A / a

Sin 71/ 26 = Sin A / 27

Sin A  = 27 Sin 71 /  26  = about .982

So°

Sin-1(.982)  = A  = 79. 08°

Then angle B = 180 - 71 - 79.08 = 29.92°

And b is given by

b/sin29.92  = 26/sin 71

b = 26sin29.92/sin71 =  about 13.72

But A could also be an obtuse angle = 180 - 79.08 =  100.92°

So we have

B = 180 - 71 - 100.92 = 8.08°

And we have

b / sin 8.08  = 26/sin71

b = 26sin8.08/sin 71 = 3.865

8 0
3 years ago
You roll a red-sided die and a white-sided die. Find the probability. P(red is less than 3 and white is less than 3) Simplify th
goldfiish [28.3K]

Answer:

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Step-by-step explanation:

The red dice has 6 faces. The number you have to obtain is less than 3. So your answers must be 1 and 2. The numbers 1 and 2 are two solutions out of six. Now the same goes with the white dice. Two solutions out of six. You combine them and obtain 4 on 12. Then, you reduce the answer in minimal terms and finally obtain 1 on 3.

4 0
3 years ago
Simplify the given expression.<br> (3x+8)(2x+6)
sladkih [1.3K]
(3x+8)(2x + 6)

6x^2+18x+16x+42
6x^2+34x+42

using the foil method, you can expand the given expression. It is already in simplified form with the given (3x+8)(2x+6)
7 0
3 years ago
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