All categories

3 years ago

Find all complex solutions of 2x^2+3x+5=0 using the quadratic equation.

1 answer:

katrin2010 [14]3 years ago

7 0

2x^2 + 3x + 5 = 0
a = 2 b = 3 and c = 5
x = [-b +-sq root(b^2 -4ac)] / 2a
x = [-3 +-sq root(9 -4*2*5)] / 4
x = [-3 +-sq root(9 - 40)] / 4
x = -(3 / 4) + sq root (-36) / 4
x = -(3 / 4) - sq root (-36) / 4

You might be interested in

What is 0.8% of 50? A. 0.04 B. 0.4 C. 4 D. 40

BaLLatris [955]

Answer:

It would be A!

Step-by-step explanation:

.08 times .50 would be 0.04. (It's a quick way to be able to solve problems similar to that! :)

7 0

2 years ago

Read 2 more answers

Which inequality correctly compares Two-fifths, Six-sevenths, Five-eighths, and 1?

Ronch [10]

Answer:

2/5 < 5/8 < 6/7 < 1

OR

1 > 6/7 > 5/8 > 2/5

Step-by-step explanation:

It is required to compare Two-fifths, Six-sevenths, Five-eighths, and 1

Two-fifths = 2/5

Six-sevenths = 6/7

Five-eighths = 5/8

So, the given numbers are: 2/5, 6/7, 5/8, and 1

We need to make the numbers in order from the least to the greatest or from the greatest to the least

The easy method is convert the rational numbers to decimal numbers

So,

2/5 = 0.4

6/7 ≈ 0.857

5/8 = 0.625

1 = 1

So, the numbers form the least to the greatest are:

0.4 , 0.625 , 0.857 , 1

So,

2/5 , 5/8 , 6/7 , 1

The inequality correctly compares the numbers are:

2/5 < 5/8 < 6/7 < 1

Or can be written from the greatest to the least as:

1 > 6/7 > 5/8 > 2/5

6 0

3 years ago

The midpoint of (2,7) and (6,3)

White raven [17]

Answer:

Step-by-step explanation:

8 0

2 years ago

The volume of a cube is 36 cubic feet. What is the volume of a pyramid that fits exactly inside the cube?

jok3333 [9.3K]

Volume of a cube = 1/3 volume of cube = 1/3 * 36 = 12 cubic feet.

6 0

3 years ago

Which is equivalent to 64 1/4

professor190 [17]

It A i just took the quiz and got it but fail

7 0

3 years ago

Read 2 more answers