Pls help
Equation = x2-2x-3=0

Pls Help Equation = X2-2x-3=0

Answers

Answer 1

Answer:

x^2 - 2x - 15 = 0.

Step-by-step explanation:

x^2 - 2x - 3 = 0

(x - 3)(x + 1) = 0

So alpha and beta are -1 and 3.

So the roots of the required equation are 2(-1)-1 and 2(3) - 1

= -3, 5.

So the equation is

(x - 5)(x + 3) = 0

-that is x^2 - 2x - 15 = 0


Related Questions

5.04 x 104 =

200.8

504

5,044

50,400

none of these

Answers

Answer:

none of these

Step-by-step explanation:

5.04*100=524.16

Answer:

none of these

Step-by-step explanation:

5.04 x 104 = 524.16

there is no option with 524.16

so none of these

1.) √12 is a natural, whole, integer, rational or irrational number

Answers

Irrational Number










thanks
it’s irrational because 12 has no perfect square root, there’s no number multiplied by itself to equal 12.

An angle measures 46° more than the measure of its complementary angle. What is the
measure of each angle?

Answers

Answer:

Angle + the Complementary angle = 90 degrees. Let x be the measure of the angle under the question. Then the measure of the Complementary angle is (x+46) degrees, and you have this equation x + (x+46) = 90, or 2x+ 46 = 90, or 2x = 90 - 46 = 44. Then x =  = 22. The given angle has the measure of 22 degrees. The complementary angle is 90-22 = 68 degrees. Check. 68 - 22 = 44 degrees. Correct !!

Which value of q is a solution to this equation?
q
-- = 2
9

answers:


A: q=4
B: q=0
C: q=2
D: q=6

Answers

why brainly tellin me the answer needs to be 20 characters long anyways it’s A: q = 4

polygons are similar find the scale factor of the smaller figure to the larger figure​

Answers

Answer:

Step-by-step explanation:

1.) 10 is a natural, whole, integer, rational or irrational number

Answers

Answer:

10 is whole number .......

yes ten is natural,whole, integers,rational

Step-by-step explanation:

because natural contains all numbers wiThout 0 and whole contains all numbers with 0 so 10 is both of them.Integers are the number which is not a fraction,it is a whole number.And 10 is a rational number because all integers are rational.But it is not irrational.

Which one does not belong? Explain your reasoning.

Answers

Answer:

17

Step-by-step explanation:

17 is the only prime number present.

Answer:

17 does not belong

Step-by-step explanation:

In this image (and problem), 17 is the only prime number there.

Hopefully this helped you out!

Can somebody please help? I been struggling to answer this!

Answers

Answer:

the first option is the answer. I am sure of this

Answer:

the first option is the answer

Find the difference. 87,000,000,976 – 6,998,765,824

Answers

Answer:

80001235152

Step-by-step explanation:

hope this helped!

Find the height of the triangle by applying formulas for the area of a triangle and
your knowledge about triangles.

A. 5.8 mm
B. 2.0 mm
OC. 4.4 mm
D. 6.2 mm

Answers

Answer:

Step-by-step explanation:

a= 12 mm ; b = 16 mm  ; c = 18 mm

s = (a + b+c)/2

[tex]=\dfrac{12 + 16 + 8}{2}\\\\= \dfrac{36}{2}\\\\= 18\\\\[/tex]

s -a =  18 -  12 = 6 mm

s  -b = 18 - 16 = 2 mm

s  -c = 18 - 8 = 10 mm

[tex]area = \sqrt{s(s -a)(s-b)(s-c)}[/tex]

       [tex]= \sqrt{18*6*2*10}\\\\= \sqrt{2160 }\\\\=46.47\\\\=46 \ mm^{2}\\[/tex]

[tex]\dfrac{1}{2}* \ base * \ height = 46\\\\\dfrac{1}{2}*16* \ height = 46\\\\height = \dfrac{46*2}{16}\\\\[/tex]

  = 5.75

Height = 5.8 mm

Answer:

A. 5.8mm

Step-by-step explanation:

[tex]area \: of \: triangle = \sqrt{s(s - a) \times (s - b) \times (s - c)} \\ s = \frac{a + b + c}{2} \\ s = \frac{12 + 8 + 16}{2} \\ s = 18 \\ area \: of \: triangle \: = \sqrt{18(18 - 12) \times (18 - 8) \times (18 - 16)} \\ = \sqrt{2160} \\ = 46.47 {m}^{2} \\ area \: of \: triangle \: = \frac{1}{2} \times base \times height \\ 46.47 = \frac{1}{2} \times 16 \times h \\ h = \frac{46.47}{8} \\ h = 5.8mm[/tex]

Simplify the radical expression.
[tex] \sqrt{40} [/tex]

Answers

Answer:

√40 = √ ( 2× 2 ×2 ×5) = 2√10

.........

Are Quadrilaterals A and C congruent??​

Answers

Answer:

It turns out that knowing all four sides of two quadrilaterals are congruent is not enough to conclude that the quadrilaterals are congruent. Unlike with triangles, some information about angles is needed in order to conclude that two quadrilaterals are congruent. I will give you the video that might be helpful. I dont own the video but i hope it helps you . <3

Step-by-step explanation:

https://www.khanacademy.org/math/cc-fifth-grade-math/properties-of-shapes/imp-quadrilaterals-2/v/quadrilateral-types-exercise

If JL = 8x-3 and LK = 4x + 57, Find JK

Answers

JK =8x-3 +4X+57
JK = 12x+ 54

Answer: JK = 234

Concept:

Here, we need to know the idea of the segment addition postulate.

The Segment Addition Postulate states that given 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Solve:

PART I: Find the value of x

Given information

JL = 8x - 3

LK = 4x + 57

Given expression deducted from the given figure

JL = LK

Substitute values into the expression

8x - 3 = 4x + 57

Add 3 on both sides

8x - 3 + 3 = 4x + 57 + 3

8x = 4x + 60

Subtract 4x on both sides

8x - 4x = 4x + 60 - 4x

4x = 60

Divide 4 on both sides

4x / 4 = 60 / 4

x = 15

-------------------------------------------------------------------------------

PART II: Find the value of JK

Given information

JL = 8x - 3

LK = 4x + 57

x = 15

Given expression deducted from the segment addition postulate

JK = JL + LK

Substitute values into the expression

JK = 8x - 3 + 4x + 57

JK = 8(15) - 3 + 4(15) + 57

Simplify by multiplication

JK = 120 - 3 + 60 + 57

Simplify by simple operation (addition/subtraction)

JK = 117 + 60 + 57

JK = 177 + 57

[tex]\boxed{JK=234}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

write each fraction number as a decimal 2 1/8

Answers

Answer:

2 1/8 as a decimal is 2.125

Step-by-step explanation:

Answer:

2.125

Step-by-step explanation:

To find the decimal version of the fraction number, you need to divide 1/8, which is .125; combining that with the original whole number, you get 2.125.

What is 15 percent of 1135? Also Explain how you came up with your solution and the actions you took.

Answers

Answer:

170.25

Step-by-step explanation:

I made 15% into a decimal. The decimal, being 0.15, was multiplied to 1135 to get the answer 170.25

1135 x 0.15 = 170.25

The value of the percentage is,

→ 15 ÷ 100

→ 0.15

We have to find,

→ 15% of 1135

Let's find the solution,

→ 1135 × 0.15

→ 170.25

Hence, the answer is 170.25.

If m ZABD = 83º, what are mZABC and m ZDBC?
3x+33° D
(Ex-6)°
B
mZABC = °

Answers

Answer:

∠ ABC = 48°

Step-by-step explanation:

∠ ABC + ∠ DBC = ∠ ABD , that is

6x - 6 + 3x + 8 =  83

9x + 2 = 83 ( subtract 2 from both sides )

9x = 81 ( divide both sides by 9 )

x = 9

Then

∠ ABC = 6x - 6 = 6(9) - 6 = 54 - 6 = 48°

hiiiii please help me!!!!

Answers

Answer:

-i

Step-by-step explanation:

'i' is the square root of -1, so i^2 would be -1. so now:

[tex]i^3 = (i^2)i = (-1)i = -i[/tex]

Calculate the volume of the cylinder & Pie = 3.14 Zom 10cm and radius 7cm​

Answers

Answer:

1538.6cm^3

Step-by-step explanation:

See the image for solution

Hope it helps

Have a great day

Tara is saving for an overseas trip. Her taxable income is usually about $20000. She estimates that she will need $5000 for the trip, so she is going to do some extra work to raise the money. How much extra will Tara need to earn in order to save the extra $5000 after tax?

Answers

An income is taxable is such income falls into a category where a proportion of the income is removed, as tax. To have an extra $5000 after tax, Tara must save $6173.

Given that:

[tex]Earnings = \$20000[/tex] --- normal earnings

[tex]Amount = \$5000[/tex] ---- the amount needed

From the complete question, the tax rate for earnings between $18201 and $37000 is 19%.

Let the additional amount be x.

So, the equation that calculates the amount needed (after tax) is:

[tex]x(1 - 19\%) = 5000[/tex]

Express as decimal

[tex]x(1 - 0.19) = 5000[/tex]

[tex]x(0.81) = 5000[/tex]

Make x the subject

[tex]x = \frac{5000}{0.81}[/tex]

[tex]x = \$6173[/tex]

Hence, she needs to make an extra of $6173 to save $5000

Read more about taxable income at:

https://brainly.com/question/17347618

The morning temperature was at 23.5° F. Later that evening the temperature had dropped to 15.6° F. What was the change in temperature?



According to Jake the temperature had a change of -7.9° F.



Is Jake’s answer a true of false statement? Please explain your reasoning for your answer.

Answers

Answer:

Jake's answer is true; the change in temperature is -7.9° F.

Step-by-step explanation:

The change in temperature is the final value minus the initial value. Evening minus the morning.

The final value is 15.6° F, the initial value is 23.5° F.

So 15.6 - 23.5 = -7.9

Jake's answer is true.

62.9042 to the nearest hundredth

Answers

Answer:

62.9

Step-by-step explanation:

CAN SOMEONE TAKE A QUICK LOOK AT THIS AND HELP ME OUT

Answers

Answer:

9/79/169%, 523.2, 458 (to 3sf)

Step-by-step explanation:

Example 1:

16/169×100%=9/79/169% of the students

Example 2:

87.2%×600=523.2 students

Example 3:

27.3%=125 students

100%=458 students (to 3sf)

In a hotel, 40 people occupy excatly 26 rooms. Each room is occupied by either one or two people. How many rooms are occupied by exactly one person?

Answers

Answer:  12 rooms

Explanation:

Let's say that the first 26 people will occupy each of the 26 rooms. This means that, so far, there's one person per room.

There are 40-26 = 14 people left. Let's say those 14 people occupy the first 14 rooms. This means that the first 14 rooms now have 2 people in them per room. The remaining 26-14 = 12 rooms still have one person per room.

A Cheetah running at 61 miles per hour is chasing an American Antelope that is running
at a rate of 1583 meters per minute.
Which animal is running at a faster rate?

Answers

Answer:

Cheetah

Step-by-step explanation:

American Antelope's speed = 94980 meters per hour

                                           = 59 miles per hour

The Cheetah is faster than the American Antelope

Answer:

Step-by-step explanation:

The American Antelope is going at a rate of 1583 meters / minute

1583 m [ 1 km / 1000 m ] = 1.583 km / minutes

In an hour, the Antelope will go 1.583 km / minute * 60 min / hour

1.583 * 60 = 94.98 km / hour

The cheetah is going 61 miles / hour * 1.6 km / mile  = 97.6 km/hour

The Cheetah is  not going to go hungry tonight.

For the function f(x) = −2x − 9, identify the values of f(0), f(1/2), and f(−2)

Answers

Step-by-step explanation:

f(0)=-2(0)-9=0-9=-9

f(1/2)=-(1/2)-9=-1/2 -9=-19/2

f(-2)=-2(-2)-9=4-9=-5

Answer:

f(0) = -9f(1/2) = -10f(-2) = -5

Concept:

Here, we need to understand the idea of evaluation.  

When encountering questions that gave you an expression with variables, then stated: "If x = a, y = b, z = c" (a, b, c are all constants), this means you should substitute the value given for each variable back to the expression.

Solve:

Question One. Identify the value of f(0)

f(x) = -2x - 9

f(0) = -2(0) - 9

f(0) = 0 - 9

f(0) = -9

Question Two. Identify the value of f(1/2)

f(x) = -2x - 9

f(1/2) = -2(1/2) - 9

f(1/2) = -1 - 9

f(1/2) = -10

Question Three. Identify the value of f(-2)

f(x) = -2x - 9

f(-2) = -2(-2) - 9

f(-2) = 4 - 9

f(-2) = -5

Hope this helps!! :)

Please let me know if you have any questions

Slope-Intercept
Functions
Acellus
Find the equation to the line below.
1

Answers

Answer:

y=4x+1

Step-by-step explanation:

First the slope of the line is 4. The equation of the line is y-1=4x, y=4x+1

32600÷9330?
Please answer:(​

Answers

Answer:

3.49410504

It is the answer hope it helps.

Mark me as Brainliest plz

Answer:

3.49410503751

Step-by-step explanation:

But as a smaller version it is

3.494

1. the the sum of three consecutive number is 72. find the number.​

Answers

Answer:

23,24,25.

Step-by-step explanation:

Consecutive numbers are numbers following in order. I found them unconventionally by first dividing 72 by 3, which is 24. So if there were 3 24s it would make 72. 23+25 is the same sum as 24+24. Then you add in the middle number, 24 and get 72.

Answer:

The answers are 23, 24, and 25

Step-by-step explanation:

Three consecutive numbers means 3 numbers in a row. So just find three numbers that all add up to 72.

23+24+25=72

(70 POINTS + BRAINLYIEST)

Solve Geometric Sequence:
243, ___, ___, ___, ___, ___, 1/3

Solve for middle terms + r (common ratio)

Answers

Hi! I'm happy to help!

To  solve this, we first need to find our what could give us 1/3. WE realize that the sequence is descending, so we must be dividing. We can then, from here, multiply our top number by 1/3, because that is our end number, and could possibly work for our common ratio. From this, we can check if this fits in our equation. (dividing by 3)

243×1/3=81

81×1/3=27

27×1/3=9

9×1/3=3

3×1/3=1

1×1/3=1/3

We can check if this is the correct amount of numbers that would fit into the geometric sequence. Let's see if this fits in:

243, 81, 27, 9, 3, 1, 1/3

This does fit into our geometric sequence. Our middle terms are underlined. (missing numbers)

Our common ratio is the number we multiply the previous number by to get our next, so our common ratio is 1/3.

So, our geometric sequence is 243, 81, 27, 9, 3, 1, 1/3, our middle terms are 81, 27, 9, 3, and 1. Our common ratio is 1/3.

I hope this was helpful, keep learning!

Answer:

Middle terms 81, 27, 9, 3, 1 or -81, 27, -9, 3, -1Common ratio 1/3 or -1/3

Step-by-step explanation:

Given:

t₁ = 243, t₇ = 1/3

To find the terms in between.

Find the common ratio first:

tₙ = t₁rⁿ⁻¹1/3 = 243*r⁶r⁶ = 1/729r = [tex]\sqrt[6]{1/729}[/tex]r =  ± 1/3

The terms in between are:

t₂ = 243*1/3 = 81 or -81t₃ = 81*1/3 = 27 t₄ = 27*1/3 = 9 or -9t₅ = 9*1/3 = 3t₆ = 3*1/3 = 1 or  -1

At Bob's binders, a set of 3 notebooks costs $4.20. At Pam's Paper Place a set of 4 notebooks costs $5.20. What is the unit price of the notebooks at each store? Which is the better buy?

Answers

Step-by-step explanation:

At Bob's binders, the unit price = $4.20 ÷ 3

= $1.40

At Pam's Paper Place the unit price = $5.20 ÷ 4 = $1.30

the better buy is at Pam's Paper place

Other Questions
A store had sales of $483.9 billion in 2016 and $536.4 billion in 2018. Use the Midpoint Formula to estimate the sales (in billions of dollars) in 2017. Assume that the sales followed a linear pattern. HURRY QUICK PLEASE HELP!!Which expression is equivalent to 10V5? A.V500 B. V105 C. V50 D. V15 8. The sum of any two consecutive prime numbers is also prime. A car advertisement states that a certain car can accelerate from rest to 70 km/s in 7 seconds. Find the cars average acceleration. if mr. Lu has 12 apples and oranges and missing you so that's three apples is only two oranges if they spent the same amount of money on fruit how much is an Apple worth still compared to an orange what are 3 call and response examples FIRST RIGHT ANSWER GETS BRAINLIEST what is the wind ask the leaves to do What is the volume of a cone with a height of 9.5 inches and a radius of 8 inches? Cone V = 1 3 Bh 1. Rewrite the formula for the base area: V = 1 3 r2h2. Substitute the values into the formula: V = 1 3 (82)(9.5)3.Evaluate the power:V = 1 3 (64)(9.5)4.Simplify using multiplication: V = 1 3 (608)The cone has a volume of? cu 1 v s trnh by nguyn l lm vic cc thng s v c im ca mch chnh lu cu 1 phacu 2 v s trnh by nguyn l lm vic ca b nghch lu p 1 pha Para la instalacin elctrica de una casa se necesitan 775 metros de cable rojo y 875 metros de cable negro, el rollo de cable rojo tiene 125 pies y el rollo de cable negro tiene 150 pies de largo. Cuntos rollos de cable rojo se necesitan para la instalacin elctrica? Cuntos rollos de cable negro se necesitan para la instalacin elctrica? Ayuda porfavor...... Write electronic configuration of Na and Ca on the basis of subshell. true or falseenergy can neither be created nor be destroyed why religious place are important If 1 lb = 2 cups what does 1/2 cups equal?PLEASE HELP What type of rock is pictured here? What are the reason for a merger?vit 1 oan vn 6 cu Emita su opinion sobre:Si existe o no existe relacin entre la anatoma y fisiologa humana. -5=-10+ find the missing value brainiest to whoever right