Solve.
x² + 5x – 2=0

Answers

Answer 1

Answer:

Use the quadratic formula

−

√

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

−

x^{2}+5x-2=0

x2+5x−2=0

a={\color{#c92786}{1}}

a=1

b={\color{#e8710a}{5}}

b=5

−

c={\color{#129eaf}{-2}}

c=−2

−

⋅

(

−

)

√

⋅

Step-by-step explanation:

this should help

Answer 2

Solve the equation for X
by finding A B and c
of the quadratic then applying the quadratic formula.

I hope this helps !!

Related Questions

Choose the best selection for the quadrilateral with vertices at the following points: (-2,0), (0,4), (4,0), (6,4) Hint: Start by graphing the points. Distance Formula: d= (x2 – x1)2 + (y2 – yı)? + B. Parallelogram a. Rectangle D. Trapezoid Rhombus

Answers

The best selection for the quadrilateral with the given vertices is: parallelogram.

Recall:

Parallel lines are lines do not intersect and they are equal distant apart.

The opposite side of a parallelogram are of equal length.

Thus, the points of the vertices of the quadrilateral has been graphed in the diagram shown below:

Point A (-2,0)

Point B (0,4)

Point C (6,4)

Point D (4,0)

Find the distance between each vertices using the distance formula: [tex]d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}[/tex]

Distance between Point A (-2,0) and Point B (0,4):

[tex]AB = \sqrt{(0 -(-2))^2 + (4 - 0)^2} \\\\\mathbf{AB = \sqrt{20} }[/tex]

Distance between Point B (0,4) and Point C (6,4):

[tex]BC = \sqrt{(6 - 0)^2 + (4 - 4)^2} \\\\\mathbf{BC = 6 }[/tex]

Using the same distance formula, CD = √20 while AD = 6

This means that the opposite sides of the quadrilateral with the given vertices are equal in length. Parallelogram has two pairs of equal sides.

Therefore, the best selection for the quadrilateral with the given vertices is: parallelogram.

Learn more about Parallelogram on:

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A movie theater charges $8.00 for adults and $5.00 for children. If there were 40 people altogether and the theater collected $272.00 at the end of the day, how many
of them were adults?
A. 29 adults
B. 16 adults
C. 24 adults
D.10 adults

Answers

Answer:

C.24

Step-by-step explanation:

First multiply 8 by 24 this is so you know how much 24 adults would be. You will get 192 so next you need to subtract 192 from the total money 272 to get 80 and 80 should be how much all of the kids cost now to check and make sure there are 40 people divide 80 by 5 to get 16 which is the total number of kids no just add 16 and 24 together to get 40

how do i multiply 4000x by the square root of 42

Answers

Answer:

25922.963

Step-by-step explanation:

the square root of 42 is 6.48074069841

4000*6.48074069841 is 25922.9627936

What is the perimeter of the triangle?

Answers

Answer:

Step-by-step explanation:

12 on two of the sides and 10 on bottom

There is a problem with the question since it is supposed to say how much length does each box in the graph consider. But assuming that each box length is 1 unit...

The pythagorean formula states a^2 + b^2 equals c^2 .... Pythagorean theorem states that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)

So, lets just divide the blue triangle in half, symmetrically so that we can get a 90 degree angle. "a" is height of the half triangle and "b" is base of the half triangle so we have to find "c" (the hypotenuse) Now that we already can count and find the value of a is 12 unit and b is 5 unit.

So, 12^2 + 5^2 equals c^2 ... now if we solve the formula, the value of "c" comes 13 (it also comes -13 but negative number can not be counted in the diagram)

The triangle is a isoceles triangle which means both the sides of "c" are equal so... one side is 13 then the other side is also 13. and we already know the base is 10 units. So just add them up- 13+13+11 comes 37 units. (Its kinda complicated and i am bad at making someone understand so just learn the pythagorean theorum...)

SO THE FINAL ANSWER IS 37 UNITS. i am not sure so let me know if am correct. And if i m wrong... pls forgive me T-T

write the linear equation in slope intercept form (-2,-4) and (-3,-3)

Answers

Answer:

y=7x+18

Step-by-step explanation:

the y intercept is 18 and the slope is 7.

7 grade math hellp me

Answers

Answer:

Step-by-step explanation:

180 - 148 = 32

I hope this helps!

find the value of n n+150+7+100=200+50+27

Answers

Answer:

Step-by-step explanation:

n+150+7+100=200+50+27

n+257 = 277

n = 277 - 257

n = 20

Answer:

Step-by-step explanation:

hope it will help goodbye.if there is any other question feel free to ask

1092 is what percent of 1140

Answers

95.97

Answe
Is
95.97
Blab
Bla
Bla
Bla
Bla
Bla
Bla
Bla
Bla 20 20

%95.79 because it is

A painter uses 15 gallons of interior paint to cover 300 square yards of wall and ceiling space. On a different job, he uses 8 gallons to cover 160 square yards. No paint is left over on either job. How many gallons of paint are needed to cover 1 square yard?

Answers

Answer:

.05

Step-by-step explanation:

300/15

20 sqr yrds per gal

1/20

1/20 or .05 Gal per sqr yrd

Help me pls thank you so much

Answers

Answer: the second one

Step-by-step explanation:

A number decreased by five is six less than twice the number. Find the number. Show work.

Answers

Answer:

The number is 1

Step-by-step explanation:

let the number be n

n-5=2n-6

n-2n=-6+5

-n=-1

n=1

What is the area of triangle ABC? pls help i need to pass this test!!

Answers

Answer:

Step-by-step explanation:

Every day, Lindsey’s orange juice stand uses 1 ½ bags of oranges. How many days will 4 ½ bags of oranges last?
What Operation please!

Answers

Lindsey will have 3 days

what is the area and perimeter of the figure with the given vertices? (7,8) , (-5, -8) , (7,-8) , (-5,8)?

Answers

Answer:

perimeter: 56 unitsarea: 192 square units

Step-by-step explanation:

We assume you're interested in the convex polygon, so the given vertices are not listed in order around the figure.

The figure is 12 units by 16 units, so has a perimeter of ...

P = 2(L +W)

P = 2(16 +12) = 56 . . . . units

and an area of ...

A = LW

A = (16)(12) = 192 . . . . square units

B. Direction: Rewrite the each of the following using EXPONENTS.

Example: Two to the seventh power =2⁷ 7 × 7 × 7 = 7³

5) six with the exponent
6) 10 × 10 × 10
7) 3 × 3 × 3 × 3

Answers

5) 6 with the exponent.

6 can be with any exponent (since you haven't given it) like, 6¹, 6², 6³, 6⁴ etc. But, since the value is not given..it'll most probably be 6¹.

6) 10 × 10 × 10 = 10³

7) 3 × 3 × 3 × 3 = 3⁴

_____

Hope it helps ⚜

5. 6^1
6. 10^3
7. 3^4
I think this is what you’re asking for?
#brainliest

write as an expression: Fifteen more than the quotient of 24 and a number x. then evaluate when x equals 8

Answers

Answer:

Step-by-step explanation:

The expression would be 24/x + 15. 24 divided by 8 is 3 and 3 plus 15 is 18.

Jada and Han order two identical pizza’s.jada ate 1/2 of hers and han ate 2/3 of his. How much pizza did they eat altogether

Answers

1 x 3
2 x 3

2 x 2
3 x 2

3/6
4/6

7/6= 1 1/6

1 1/6 is the final answer

The amount of pizza that they eat altogether will be 7/6 pizza out of 2 pizzas.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas. This approach is used to answer the problem correctly and completely.

Jada and Han request two indistinguishable pizzas. Jada ate 1/2 of hers and Han ate 2/3 of his.

The amount of pizza that they eat altogether will be given as,

⇒ 2/3 + 1/2

Add the fraction, then we have

⇒ 2/3 + 1/2

⇒ (4 + 3) / 6

⇒ 7 / 6

The amount of pizza that they eat by and large will be 7/6 pizza out of 2 pizzas.

More about the Algebra link is given below.

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The population of a town gradually decreases by about 30
people a year. In 2015, the population was 3,600 people. Write an equation in general form for the population of this town .

Answers

it would be 3,600 - 30 = 3570

bru how i do these 2 ?

Answers

Use the pythagoream theorem A^2+B^2 then square your answer a being your adjacent side and b being your opposite leg.

A store clerk sold 25 Mathematics books and 10 English books for a total of $855. If she had sold 10 Mathematics books and 40 English books, she would have got $135 more. form a pair of linear equations and calculate the price of each book.

Answers

Answer:

855+135=990

90x11=990

10x11=110

25x11=275

110+275=385 990+110=1100

385+1100=1485

1485/11=135

the math books was $11 each so all to gether it is $275.

the english books was $65 each so all to gether it is 715.

275+715=990

Step-by-step explanation:

The required price of a Mathematics book is $27 and the price of an English book is $18.

What is the equation model?

The equation model is defined as the model of the given situation in the form of an equation using variables and constants.

Let's assume that the price of a Mathematics book is x dollars and the price of an English book is y dollars. Then we can form two equations based on the given information:

Equation 1: 25x + 10y = 855

This equation represents the total amount earned by selling 25 Mathematics books and 10 English books for $855.

Equation 2: 10x + 40y = 990

This equation represents the total amount that would have been earned by selling 10 Mathematics books and 40 English books for $135 more than the original total.

To solve for x and y, we can use elimination or substitution. Let's use elimination:

Multiplying Equation 1 by 4, we get:

100x + 40y = 3420

Now, we can subtract Equation 2 from this equation to eliminate y:

90x = 2430

x = 27

Substituting x = 27 into Equation 1, we can solve for y:

25(27) + 10y = 855

675 + 10y = 855

10y = 180

y = 18

Therefore, the price of a Mathematics book is $27 and the price of an English book is $18.

Learn more about models here:
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The wheels on Jamie's bicycle are 3 feet
in diameter. Her younger sister Josie has
a bike with 12-inch wheels. What is the
ratio of Jamie's bike wheels to Josie's
bike wheels?

Answers

Answer:

a ratio of 3 or also 3/1 is a fraction is wanted

AB:BD = 3:4

AC:CD = 3:2

Work out AB:BC:CD

Answers

Answer:

15:6:14

Step-by-step explanation:

AB:BD is split into a total of 3+4=7 parts.

AC:CD is split into a total of 3+2=5 parts.

So, if the two ratios are put on a number line together with the points A, B, C, and D, the number line would be split into a total of 35 parts (the LCM of 7 and 5).

AB would be (3/7)*35=15.

CD would be (2/5)*35=14

BC would be 35-(15+14)=6

So, the ratio is 15:6:14.

find the discriminant of -2x^2+8=x^2-28
show work please

Answers

Answer:

432

Step-by-step explanation:

Use the values of A, B, C to find the discriminant

What is logistic growth? Why would it be good if human population growth followed a logistic growth pattern in the future?

Answers

Logistic growth occurs when a
quantity gradually approaches
a limiting value. The growth
rate is proportional to the
difference between the limiting
value and the current quantity.

The population of earth growing in logistic pattern will be helpful because it will help the human population to grow gradually to approach the carrying capacity of earth and without making any burden on it.

What is logistic growth?

In logistic growth the population at first increases at slow rate and then at high then it stops when resources start depleting.

When population on earth will follow the logistic growth pattern, the people leaving can have enough resources to use, and it will in a way can a make a better community without war or disturbance.

For more references on logistic growth, click;

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Use distribution property to this expression

6( 5 —q) what is the answer plzzzzzz helpppppp meeeee

Answers

Step-by-step explanation:

All the steps are in the pictures. If you have any questions let me know and I'll explain in simple terms :)

please answer for 30 points

Answers

Answer:

(2,-2)

Step-by-step explanation:

but it says fifteen and the answer is the first one

Answer:

I believe its A. im not 100 % im sorry if its wrong

x(5)+2=244
help pls
(^_^)

Answers

Simplify both sides of the equation

5x+2=244

Subtract 2 from both sides

5x+2−2=244−25x=242

Divide both sides by 5

[tex] \frac{5x}{5} = \frac{242}{5} [/tex]

Answer

[tex] \: x = \dfrac{242}{5} [/tex]

[tex] \: x = 48.4 [/tex]

The solution to the given problem is:

48.4

To find the value of x, one would have to spread out the terms.

5x+2 = 244

Then we would make x the subject formula

5x= 244-2

5x=242

Divide both sides by 5 (value of x)

x= 242/5

Therefore, the value of x is 48. 4

Answers

Answer:

.shshs

Write 23/18 as a decimal.

Answers

Answer:

Step-by-step explanation:

the answer would be 1.2778

x - y = 3
b) Work out the value of 2x – 2y

Answers

Answer: 2x-2y=3
Step-by-step
Explanation:

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Solve. x² + 5x – 2=0

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Solve.
x² + 5x – 2=0