What are the roots of the quadratic equation 2x² √ 5x 2 0 Using the quadratic formula?

Answers

Answer 1

The roots of the quadratic equation 2x² + 5x - 2 = 0 are -2.7 and 1.3.

The quadratic equation is 2x² + 5x - 2 = 0.

We can solve this equation using the Quadratic Formula:

x = [-b ± Â√(b² - 4ac)] / 2a

Where a = 2, b = 5, and c = -2.

Substituting these values into the formula, we get:

x = [-5 ± Â√(5² - 4(2)(-2))] / 2(2)

x = [-5 ± Â√41] / 4

x = [-5 ± Â√41] / 4

x = [-5 ± 6.4] / 4

x = -2.7 or 1.3

Therefore, the roots of the quadratic equation 2x² + 5x - 2 = 0 are -2.7 and 1.3.

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Related Questions

what is the same as 8/9?​

Answers

Answer:

8×1/9

Step-by-step explanation:

It is same as 8/9 because 8×1=8

A scale drawing of a dance floor is shown. What is the area of the actual dance floor? 22 cmon the top and bottom and 14 cm on the sides 5 cm equals 8 feet

Answers

Answer:

The area of the dance floor will be 788.48ft²

Step-by-step explanation:

Since 5cm represents 8ft, it means

1cm represents 8/5ft.

The scale length is 22cm, therefore the actual length would be

22 x 8/5ft = 35.2ft

The scale breadth is 14cm, therefore the actual breadth would be

14 x 8/5ft = 22.4ft

The area of the dance floor will be

(35.2ft)(22.4ft) = 788.48ft²

Given: BD bisects AE, A = E
Prove: ABC EDC
(No links)

Answers

Answer:

All sides are equal better explenation bellow

Step-by-step explanation:

It's a mirror flip of a ABC triangle

Yet you can say AB Is = to DE

And since most likely it's a 60° triangle all the angles are 60°

All triangles have 180°

Which means AB =BC

BC= AC

BC =CD

DE= CD

CE=DE

Which means all the sides are equal

What is the surface area of the rectangular prism that can be formed using this net?

Answers

Answer:

S = 2(lw + lh + wh)Step-by-step explanation:

PLEASE HELP! this is a 4 part problem but here is the last part :)!!!

Answers

The answer is B 63ft squared

Can some one help? PLEASE!!!!!!!!

Answers

1: true
2: false
3: false
4: true
5: true

I hope these are correct!
true
false
false
true
true

:-)

What’s the diameter of a circle that had a radius of 4cm

Answers

Answer:

8

Step-by-step explanation:

Answer is =8cm

Step-by-step explanation:

d=2r=2·4=8cm

Troy and two of his friends help troy's dad do yard work. After his dad paid $35 for gas, the boys made 128. How much did each child make?

Answers

The boys made about 64$ each.

Area of Composite Figures
-1.5 in.
10 in.
A
6 in
4 in.
1.5 in.
17 inches squared
0.40 inches squared
52 inches squared
0 61 inches squared

Answers

Answer:

Step-by-step explanation:

The answer is 61in that’s the answer to your problem

What is the sum of (3x – 6) + (2x + 5)?

Answers

Answer: 5x - 1

Step-by-step explanation: 3x + 2x = 5x and -6 + 5 = -1, so 5x - 1.

Answer:

The sum of (3x – 6) + (2x + 5) is 5x - 1

Step-by-step explanation:

(3x - 6) + (2x + 5)

3x - 6 + 2x + 5

3x + 2x - 6 + 5

5x - 1

Thus, The sum of (3x – 6) + (2x + 5) is 5x - 1

-TheUnknownScientist

A student incorrectly says the volume of the regular hexagonal​ prism, to the nearest cubic​ centimeter, is 1,619 cm3. What is the correct​ volume? What error did the student most likely​ make?
The volume of the regular hexagonal prism is ___ cm3.

Answers

Answer:

17.5

Step-by-step explanation:

COMPOSITE FIGURES!!! can you please help​

Answers

I believe it would be 470 cm.

For the blue figure, there are two 2 by 2 panels and three 7 by 2 panels that would be exposed to the surface

So (7•2)•3 = 42 and (2•2)•2 = 8 so 42•8=50

The green panel is made up of four 12 by 7 panels and two 7 by 7 panels, with one of them being covered with a 14 cm part.

So (7•12)•4 = 336 and 7•7 = 49. The top part would be 49-14=35 so 336 + 49 + 35 = 420

And 420 + 50 = 470

Please correct me if I am wrong, have a good day!

2/14 as a decimal (please explain)

Answers

Answer:

Hi! The answer to your question is 0.142857. (Convert the fraction to a decimal by dividing the numerator by the denominator)

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

find the value of each variable

Answers

Answer:

x = 16  y= 16√3

Step-by-step explanation:

we know that a angle is 60 degrees. Thanks to this information we can say that x is half the hypothenuse, so is value is 16.

y can be express as √3/2 x 32 = 16√3

What's the common difference of the sequence -5, -2, 1, 4, 7, ...?
A) d= -5
B) d= 2
C) d=-3
D) d= 3

Answers

Answer:

The answer is D) d=3!!!!!

find the measure of each interior angle of a regular polygon with the following number of sides 10​

Answers

Answer:

36 will be the measure.

Hope it helps!!!

Step-by-step explanation:

Ashleys Shoe Store buys shoes for $35 and then sells them for
$85.
What is the percent of increase on the price of the shoes?
Round to the nearest whole number

Answers

85/35 = 2.43% because that is the percent you would need to multiple by

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HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

The answer i think is it c
I believe the answer is C

Find the measure of the sixth interior angle of a hexagon if the measure
of the other five interior angles are 80°, 90°, 130°, 130°, and 150°. (Show
all work)

Answers

Answer:

140°

Step-by-step explanation:

The sum of interior angles of a n-agon is (n - 2) * 180°

a hexagon should have the sum of angles equal to

4 * 180° = 720°

Now we know that the other five angles have total measure

80° + 90° + 130° + 130° + 150° = 580°

So the sixth one has to be:

720° - 580° = 140°

Answer:140°

Step-by-step explanation: required equation : 180*(n-2)

since it is a hexagon, the sum of all interior angles=180*(6-2)

                                                                                       =180*4 =720°

now the measure of 6th angle=720 -(80+90+130+130+150)

                                                    = 720 -580

                                                   = 140

You buy a used car for $12,000. The value of y of the car decreases by 15% each year. Find the value of the car in: a. 1 Year

Answers

Step-by-step explanation:

12 000 × 15/100

= $1 800

value of the car = 12 000 - 1 800

= $ 10 200

PLEAS EHELP ILL GIVE BRAINLIEST

PLEASE SHOW ALL WORK AND BE SPECIFIC

Answers

Answer:

Where is the question? You didn't post it.

What fraction describes the probability for two coins being tossed at the same time to both land on heads?

3/4
1/4
1/2

Answers

Answer: 1/4

Step-by-step explanation:

A coin has two outcomes which are either the head or the tail. When a coin is tossed, the probability of getting a head is 1/2 and likewise for a tail.

Therefore, the probability for two coins being tossed at the same time to both land on heads will be:

= 1/2 × 1/2

= 1/4

Answer:

1/4

Step-by-step explanation:

Root5 /2 root5 -1
can be written in the form
a+rootb /c
where a, b and c are integers.
Find the values of a, b and c when the resulting fraction
is written in its simplest form.

Answers

Answer:

10, 5, 19

Step-by-step explanation:

Recall that

[tex] {a}^{2} - {b}^{2} = (a + b)(a - b)[/tex]

So we can multiply the fraction by

[tex] \frac{2 \sqrt{5} + 1 }{2 \sqrt{5} + 1 } [/tex]

And get

[tex] \frac{ \sqrt{5} }{2 \sqrt{5} - 1} \times \frac{2 \sqrt{5} + 1 }{2 \sqrt{5} + 1 } = \frac{10 + \sqrt{5} }{20 - 1} = \frac{10 + \sqrt{5} }{19} [/tex]

Can someone help me with this one too please

Answers

Answer:

1) f - 2

2) 45 + b

3) s - 82

4) 52c

5) t/5

Answer:

1) f-2

2) 45+b

3) s-82

4)52c

5)t/5

Calculate the area of the shaded area !!
EZ FREE POINTS!!

Answers

Answer:

20 sq units

Step-by-step explanation:

Answer:

20 sq units

Hope it helps :)

i need help with this

Answers

Answer:

<FNM = 73

Step-by-step explanation:

we are given

GNF = 60

MNL = 47

60+47=107

107-180=73

Steve reaches into a bag with 5 marbles 3 yellow marbles and 2 green marbles and randomly selects one the he puts the marble back and sam reaches into the same bag and randomly selects a marble is this independent or dependent

Answers

Answer:

Independent

Step-by-step explanation:

The reliance of an event on the outcine of another event gives rise to a dependent event. For any two or more event, whereby the outcome of event A has no effect on the possible outcome of event B, then such scenario is termed as being Independent. In the scenario described above, the outcome oof Sam's pick does not depend on the outcine of Steve's pick. This is because, once Steve makes his selection, the marble is returned into the box before Sam makes his own selection.Therefore, no matter the color of marble picked by Steven, it will have no bearing on the outcome of Sam's pick.

What value of x will make the equation below true?
14−(x+7)=3

Answers

14-x-7=3
7-x=3
-x=-4
x=4

Sketch the graph of the following equations: y=x+5, y=-(x+5), and y = |x+5|

Answers

is a great game but I can’t have any problems at the same level that you have a few things that 234x234

The graph of functions y=x+5, y=-(x+5), and y = |x+5| are shown in figure.

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

Equations are,

y = x + 5

y = - (x + 5)

y = |x + 5|

Since, All equations shows equation of line.

Hence, We can draw all the equations as shown in figure.

y = x + 5

Slope = 1

y - intercept = 5

y = - x - 5

Slope = - 1

y - intercept = - 5

Thus, The graph of functions y=x+5, y=-(x+5), and y = |x+5| are shown in figure.

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Priscilla received 240 votes in the election for student council president. That was 60% of the students who voted in the election. How many students voted in the election? *

Answers

Answer:

400 students voted in the election

Step-by-step explanation:

Given:

Total number of votes received by Priscilla = 240

This was 60% of the students who voted in the election.

To find: Total number of students who voted in the election

Solution:

Total number of votes received by Priscilla = 60% of Total number of students who voted in the election

240 = 60% of Total number of students who voted in the election

240 = [tex]\frac{60}{100}[/tex] × Total number of students who voted in the election

So,

Total number of students who voted in the election [tex]=\frac{240(100)}{60}=400[/tex]

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