All categories

2 years ago

Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0=2x2+3x-8?

Mathematics

2 answers:

Basile [38]2 years ago

8 0

Answer:

Step-by-step explanation:

The given quadratic equation is

2x^2+3x-8 = 0

To find the roots of the equation. We will apply the general formula for quadratic equations

x = -b ± √b^2 - 4ac]/2a

from the equation,

a = 2

b = 3

c = -8

It becomes

x = [- 3 ± √3^2 - 4(2 × -8)]/2×2

x = - 3 ± √9 - 4(- 16)]/2×2

x = [- 3 ± √9 + 64]/2×2

x = [- 3 ± √73]/4

x = [- 3 ± 8.544]/4

x = (-3 + 8.544) /4 or x = (-3 - 8.544) / 4

x = 5.544/4 or - 11.544/4

x = 1.386 or x = - 2.886

The positive solution is 1.39 rounded up to the nearest hundredth

Mama L [17]2 years ago

5 0

Answer:

its a. 1.39

Step-by-step explanation:

You might be interested in

Five less than a number squared is 76, just write equation plz

Volgvan

Answer:

$x^{2}$ - 5 = 76

Step-by-step explanation:

$x^{2}$ = 81

x = 9

3 0

2 years ago

The volleyball team at West View High School is comparing T-shirt companies where they can purchase their practice shirts. The t

mina [271]

10.5x = 7.5x + 30
10.5x - 7.5x = 30
3x = 30
x = 30/3
x = 10

10.5(10) = 105
7.5(10) + 30 = 75 + 30 = 105

they need to purchase 10 t-shirts from each company for a total of $105 for each company

5 0

2 years ago

Read 2 more answers

WILL GIVE BRAINLIEST AND 30 POINTS!

kkurt [141]

Answer:

1. C

2. 3 movies

Step-by-step explanation:

1. the step function is discontinuous at C. multiples of 8 greater than 0,

you can see that at 8, 16, 24 ,32, 40, the graph is discontinuous.

2. when x = 25, y = 3.

5 0

2 years ago

Read 2 more answers

A right triangle has side lengths a, b, and c as shown below.

Musya8 [376]

Answer:

$\bold{\sin x = \frac{b}{c}}\bold{\\\cos x = \frac{a}{c}}\bold{\\\tan x = \frac{b}{a}}$

Step-by-step explanation:

Given that

A right triangle has side lengths a, b, and c

Because you did not attached photo of the right triangle so I will assume that:

Side a is the adjacent (A)
Side b is the opposite (O)
Side c is the hypotenuse (H)

(Please have a look at the attached photo)

To solve for the trigonometric functions of x, we need to recall the ratios they represent as shown below.

$\sin x = \frac{O}{H}\\\cos x = \frac{A}{H}\\\tan x = \frac{O}{A}$

EX: the sine of x is equal to the side opposite of angle x over the hypotenuse. Hence, we have the expressions of the trigonometric functions as shown below:

$\bold{\sin x = \frac{b}{c}}\bold{\\\cos x = \frac{a}{c}}\bold{\\\tan x = \frac{b}{a}}$

Hope it will find you well

4 0

2 years ago

A student divided 10 meters of wire into 6 equal parts. Which type of number describes the length of each part?

Kobotan [32]

When 10 meters of something is divided into 6 equal parts,
then each part is (1,666 and 2/3) millimeters long.

A). Whole number . . . No, that's not a whole number

B). Interger . . . No, there's no such thing as an 'interger'.

C). Rational number . . . Yes, its the ratio of 10,000 to 6 .

D). Irrational number . . . No, it's not irrational.

8 0

2 years ago

Read 2 more answers