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3 years ago

How many real solution does the quadratic equation x^2 + 11 + 8x =0

Mathematics

2 answers:

lions [1.4K]3 years ago

5 0

Answer:

The discrimant is 20 so the equation has two distinct solutions in the real number.

Step-by-step explanation:

Discriminant

B² - 4AC

8² - 4(1)(11)

64 - 44

20 > 0

Real and distinct roots

alekssr [168]3 years ago

5 0

Answer:

why r u mean i was right i did the test

Step-by-step explanation:

all off it equls up to 20 and i should have said so

You might be interested in

Write 0.002349 in scientific notation.

Studentka2010 [4]

Hi! I'm happy to help!

To solve this, we first need to know what scientific notation is. Scientific notation is a way a number is written. You write it using a number ranging from 1 to <10. Then, you multiply this number by $10^{x}$ .

In order to make this number reasonable for scientific notation, you have to move the decimal a certain amount of places. In this case you move it 3 places to the right to make your number 2.349. Since we moved it 3 places to the right our x will be -3. (If we'd moved it 3 places to the left, our x would be positive 3.)

So now, we insert our numbers:

<u>You write 0.002349 like 2.349·</u> $10^{-3}$ <u>, when it is in scientific notation.</u>

I hope this was helpful, keep learning! :D

3 0

2 years ago

You invest $1,300 in an account that has an annual interest rate of 5%, compounded annually. How much money will be in the accou

KIM [24]

Answer:

A=Pe^rt

P= princible (1300)

e= (2.71828)- function on a graphing calculator

r = interest rate (.05 or 5%)

t = time (10 years)

A = 1300e^.05(10)

A = 1300e^.5

A = 2143.337652

A = 2143

7 0

3 years ago

Read 2 more answers

What is .the quotient -5 and y ??

stepladder [879]

Answer:

5 is = to 6 . 4 is equal to x so y is 64 divided bye 5 witch is 12

Step-by-step explanation:

8 0

3 years ago

7. Three vertices of a parallelogram are (0, 0), (−4,0) and (0, 5). Find all 3 possible coordinates for

kenny6666 [7]

The given vertices combine with the fourth vertex as follows;

a) Coordinates; (-4, 5)

Lengths of the sides; 4 and 5

b) Coordinates; (4, 5)

Lengths of the sides; 4 and √41

c) Coordinates; (-4, -5)

Lengths of the sides; 5 and √41

<h3>How can the vertex coordinates be found?</h3>

The given vertices are;

(0, 0): The origin

(-4, 0): 4 units to the left of the origin along the abscissa

(0, 5): 5 units above the origin, along the ordinate

a) The point that forms a rectangle is above the point (-4, 0) and to the left of the point (0, 5), which gives;

The coordinates of the point that forms a rectangle is the point (-4, 5)

The lengths of the sides are;

0 - (-4) = 4

5 - 0 = 5

b) The first parallelogram is formed by moving an equal distance of the point (-4, 0) from the origin from the point (0, 5), which gives;

The first parallelogram is formed by the point (4, 5)

The lengths of the sides are;

4 - 0 = 4
√((5 - 0)^2 + (4 - 0)^2) = √41

c) The second parallelogram is formed by the moving an equal distance of the point (0, 5) from the origin from the point (-4, 0), which gives;

The second parallelogram is formed by the point (-4, -5)

The lengths of the sides are;

(5 - (-5)) = 5 and √41

Learn more about parallelograms here:

brainly.com/question/21474928

#SPJ1

3 0

2 years ago

The graph represents function 1, and the equation represents function 2:

inessss [21]

Answer:

Option D.

Step-by-step explanation:

The slope of a horizontal line is 0.

It is given that the function 1 is a horizontal line that passing through the y-axis at y = 4.

It means the rate of change of function 1 is 0.

The slope intercept form of a linear function is 1

where, m is slope and b is y-intercept.

The function 2 is 2

On comparing (1) and (2), we get

The rate of change of function 2 is 8.

The difference between rate of change is

The rate of change of function 2 is 8 more than the rate of change of function 1.

Therefore, the correct option is D.

3 0

3 years ago

Read 2 more answers