which quadratic equation has 2 and -3 as its roots ?

Answers

Answer 1

Answer:

alfa = 2

beeta = -3

product of zeros = 2x-3= -6

sum of zeros = 2+[-3] = -1

POLYNIMIAL = k[x²-[sum]+product]

                       =k[ x²-[-1] +[-6]]

                        = k[ x²+1 -6]

                        = x²-5

hence , the quadratic equation is x²-5

HERES UR ANS .

HOPE IT DOES HELP U

IF SO PLZ MARK THE BRAINLIESTT !!!!\


Related Questions

these triangles are congruent by which triangle congruence postulate ?

Answers

(a) SSS (side side side)
every side on one triangle is correspondingly equal to that of the same side in the other triangle

THIS TOO GOD I NEED HELP SO BAD I DONT UNDERSTAND

Answers

Answer:

54.7

Step-by-step explanation:

16.7 + 11 + 11 + 8 + 8 = 54.7

Note

I don't know how you are wrong but I showed my work and I got the same answer which is weird.

In circle 0 points P, Q, and R lie on the circle. Which of the following would not be a chord
of the circle?
OP
QP
RP
QR

Answers

Answer:

OP

Step-by-step explanation:

A chord is a segment whose extremes lie on the circumference

OP is a radius because has an extreme that is the center of the circumference and a radius is not a chord

i think the answer is OP. good luck

An angle has a reference angle of 40° in the third quadrant what is a positive measure of the angle and a negative measure of this angle

Answers

Answer:

2, probably

Step-by-step explanation:

What is a formula for the nth term of the given sequence? 300, 180, 108...

Answers

Answer:

Step-by-step explanation:

The common ratio of the terms is 0.6 (180/300=6/10;108/180=6/10). This is a geometric sequence .

nth term=500(0.6)^n-1

NEED HELP ASAP

Approximately how many cups of aquarium salt mix should David use for 30 gallons of purified water? Round your answer to the nearest cup.

16 cups
17 cups
17 cups
16 cups

Answers

Answer:

16.8 cups

Step-by-step explanation:

3.5 percent of 30 gallons

please help i keep getting the wrong answers

Answers

Answer:

10 inches

Step-by-step explanation:

Surface Area = π R² + π R L [ L is Slant Height ]

200 π = π (10)² + π (10) L

200 π = π (100) + π (10) L

200 π - 100 π = 10 π L

100 π = 10 π L

100 π / 10 π = L

10 = L

L = 10 inches

Hope this Helps......

[tex]\huge{ \mathrm{  \underline{ Answer} \:  \:  ✓ }}[/tex]

Given terms :

Surface area (a) = 200 π

radius = 10 inches

Now, we know

[tex] \large\boxed{\mathrm{surface \: \: area = \: \pi r(l + r) }}[/tex]

[tex]200\pi = \pi \times 10 \times (10 + l)[/tex]

[tex] \dfrac{200\pi}{10\pi} = 10 + l[/tex]

[tex]20 = 10 + l[/tex]

[tex]l = 10 \: in[/tex]

(note : " l " represents slant height.)

Therefore, Measure of slant height (l) :

[tex] \huge \boxed{10 \: \: in \: }[/tex]

_____________________________

[tex]\mathrm{ ☠ \: TeeNForeveR \:☠ }[/tex]

HELP PLZZZ IF YOUR JUST SCROLLING HELP MEE ITS IT A OR B

Answers

Its not a multiple choice question. Its just a part A and B. All you have to do is read and do what it says lol

How do I do this please help

Answers

Answer:

C) 4,0

Step-by-step explanation:

Basically to find zeros you set up the expression equal to zero.

First pair is (0,0) they derived this by setting the leftmost x to 0 so x=0, this meant that when x was plugged back into the equation y = x(x-4) the y value we got out was 0 because y = 0 (0-4) = 0, thus the pair (0,0).

For second pair, we set up x-4= 0, solve this to get x = 4 (add 4 to both sides). Now plug this back into full equation y= 4 (4-4)= 0, you get y=0 and your ordered pair is (4,0) which is the second pair of zero.

Zero are x-intercept where y is zero which is the main reason why we setup x=0 or x-4=0 to start with.

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

[answer]  

»»————- ★ ————-««  

Here’s why:  

According to the question, the factored form of the given quadradic expression is: [tex]x(x-4)[/tex].I have graphed this on a graphing program.

⸻⸻⸻⸻

When graphed, the parabola passes the points (0,0) and (4,0). They are the zeros.

⸻⸻⸻⸻

Option C (4,0) would be the other 'zero'.

⸻⸻⸻⸻

See graph attached.

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

What is the length of side c rounded to the nearest tenth of an inch?
17 in.
19 in.
С
The length of side c rounded to the nearest tenth of an inch is in.

Answers

Answer:

Step-by-step explanation:

This is a right triangle, and side c, our unknown, is the hypotenuse, the longest side in a right triangle. Using Pythagorean's Theorem, we have

[tex]17^2+19^2=c^2[/tex] which simplifies to

[tex]289+361=c^2[/tex] and

[tex]650=c^2[/tex] and

c = 25.5"

Please help me with either one, (all both) I’ve been struggling with this

Answers

Answer:

x = 12, x = 7

Step-by-step explanation:

The 2 legs of the triangle are congruent, both 2x + 7, then

2x + 7 + 2x + 7 + x + 11 = 85 ← equation for perimeter

5x + 25 = 85 ( subtract 25 from both sides )

5x = 60 ( divide both sides by 5 )

x = 12

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

Opposite sides are congruent, then

2(2x) + 2(5x + 3) = 104 ← distribute and simplify both sides

4x + 10x + 6 = 104

14x + 6 = 104 ( subtract 6 from both sides )

14x = 98 ( divide both sides by 14 )

x = 7

Answer:

x=12 x=7 yup thank me later

Zoe the goat is tied by a rope to one corner of a 15 by 25 meter rectangular barn in the middle of a large, grassy field. Over what area of the field can Zoe graze if the rope is 10 meters

Answers

Answer: [tex]78.55\ m^2[/tex]

Step-by-step explanation:

Given

The goat is tied by a rope to one corner of a rectangular field with length of rope 10 m.

Zoe can graze in an area equal to quadrant of circle with radius 10 m

Area of grazing is

[tex]\Rightarrow \dfrac{1}{4}\times \pi r^2\\\\\Rightarrow \dfrac{\pi r^2}{4}\\\\\Rightarrow \dfrac{\pi \times 10^2}{4}=78.55\ m^2[/tex]

PLZ HELP I WILL MARK BRAINLIEST

NO LINKS!!!

Answers

I believe the surface area is equal to 528

A cone has a height of 17 meters and a radius of 14 meters. What is its volume? Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

Answers

The answer is 249.11

if y=4x what does m equal

Answers

Answer:

m equals 4

Step-by-step explanation:

m represents the slope of the line.

The line equation is y = mx + b, which means that m = 4 and b = 0

Please help me, I’ve literally been trying for so long.

Answers

Let the cosecutive numbers be like this :

2n + 1 , 2n + 2 , 2n + 3 , 2n + 4 , 2n + 5

Odd , Even , Odd , Even , Odd

______________________________

So we have :

(2n+1)+(2n+3)+(2n+5)=(2n+2)+(2n+4) + 39

6n + 9 = 4n + 6 + 39

6n + 9 = 4n + 45

Subtract both sides 9

6n + 9 - 9 = 4n + 45 - 9

6n + 0 = 4n + 36

6n = 4n + 36

Subtract both sides 4n

6n - 4n = 4n - 4n + 36

2n = 0 + 36

2n = 36

Divide both sides by 2

2n ÷ 2 = 36 ÷ 2

n = 18

______________________________

So the numbers are :

2(18)+1 , 2(18)+2 , 2(18)+3 , 2(18)+4 , 2(18)+5

36 + 1 , 36 + 2 , 36 + 3 , 36 + 4 , 36 + 5

37 , 38 , 39 , 40 , 41

As u can see the Odd numbers are :

37 , 39 , 41

And we're done ...

What is the supplement of ([dozen sixes] + 80)degrees?

28 degrees
22 degrees
82 degrees
188 degrees

Answers

Answer:

28°

Step-by-step explanation:

Supplementary angles sum to 180°

( dozen sixes) + 80

= 12 × 6 + 80

= 72 + 80

= 152°

supplement = 180° - 152° = 28°

Find the volume of the solid that is created when you rotate the figure around the line: round to the nearest hundredth (two decimal places)

Answers

Answer:5

Step-by-step explanation:

A function with a input of 4 has an output of 10. Which following could not be the function equation?
y=14-x
y=x+6
y=2x+3
y=(2.5) x

Answers

The answer should be y=2x+3

help me pls no links or files if u answer correctly u get brainless hurry

Answers

Answer:

72 ft^2

Step-by-step explanation:

A = bh

A = 12 ft * 6 ft

A = 72 ft^2

Answer:

72

Step-by-step explanation:

you have to do base times height

A cone with a height of 15 yards has a volume of 475.17yd find the diameter of the cone

Answers

Answer:

11......................

Volume = (1/3) . π . r² . h

475.17 = (1/3) . π . r² . 15

475.17 = 5πr²

r² = 475.17/5π

r² = 30.25

r = √30.25 = 5.5

Diameter = 2r = 2 × 5.5 = 11 yd

Will give 50 points!!
Simplify your answer and write it as a proper fraction, improper fraction, or whole
number.
tan (H)=

Answers

Answer:

4/3

Step-by-step explanation:

GH =√90²-72²=

√8100-5184=

√2916= 54

so, tan (H) = 72/54 = 4/3

⁴/3 is a required answer.

Answer:

Solution given:

FG=72

FH=90

By using Pythagoras law

GH=[tex]\sqrt{90²-72²}=54[/tex]

Step-by-step explanation:

we have

Tan H=[tex] \frac{opposite}{adjacent}[/tex]

[tex]TanH=\frac{GF}{GH}=\frac{72}{54}=\frac{4}{3}[/tex]

The line that goes through the points (0,-4) and (1,2) is......

Answers

Answer: The equation for the line is “y = 6x - 4”

Step-by-step explanation: To find this answer we will put it in slope-intercept form which is y = mx +b. To first find m which is the slope you subtract the the second y by the first y over the second x by the first x. It looks like this y2 - y1/ x2 - x1. After we find the slope which is 6, to find the y-intercept which is b we just plug a point we used to find the slope into the equation we have. It looks like this y = 6x + b —> 2 = 6(1) + b... I used (1,2). Then you solve for b by multiplying 1 by 6 and then subtracting 6 to both sides to get b by itself. So it goes from 2 = 6(1) + b into -4 = b. Then you just put -4 into b and you get the answer y = 6x - 4.

Have a nice day!

which number line shows the solution to fx-5 > 3?
9 10 11
12
13
14 15
9 10 11
12 13
14 15
+++
-6 -5 -4
-3
-2
-1
-6
-5
-4
-3
-2 -1
Dorie

Answers

Answer:

8

Step-by-step explanation:

send the -5 to where the +3 is then you can now add the value together.

The population of Country A is about 1,047,000 and the population of Country B is about 1,080,000,000. Approximately how many times greater is the population of Country B than the population of the Country A?


1.)10
2.)100
3.)1000
4.)10,000

are the choices

Answers

Answer:

1000

Step-by-step explanation:

1,080,000,000/1,047,000

Maha got a phone call while she was watching a movie. After she hung up, she rewound 15 minutes of the movie tape. Which point on the number line below represents −15? AlternativeText A. Z B. Y C. X D. W

Answers

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as the number line is not given. The general explanation is as follows;

First, record the time she hung up (say, time = x)

To rewind 15 minutes back means, x - 15

So, point on the number line will be x - 15

Take for instance

[tex]x = 45[/tex]

The point on the number line will be:

[tex]x - 15 = 45 - 15[/tex]

[tex]x - 15 = 30[/tex]

See attachment for illustration

help pls i suck at algebra

Answers

I think it’s the last option
Hope that helped XD
Sorry if it’s wrong

Which expression is equivalent to the expression 512^1/4÷4^1/8−(10−32^1/5)?


ANSWERS:

A: 2^5/2-8

B:-6

C: -4

D: 2^9/4
---------
2^1/4-8

Answers

Answer:

2^5/2-8 may equivalent

What is the understood index of
[tex] \sqrt{9} [/tex]


Answers

[tex]_____________________________________[/tex]

ANSWER:

[tex]\tt \sqrt{9} \\ = \tt \sqrt{ {3}^{2} } \\ = \large\boxed{\tt{\green{3}}}[/tex]

Correct me if im wrong because im not good in english guys T^T

[tex]_____________________________________[/tex]

꧁____YunaKoharuChan____꧂


If 9x x 3x+1 = 2187, what is the value of x?




Answers

Answer:

x = 80.96

Step-by-step explanation:

9x * 3x +1 = 2187

27x +1 = 2187

27x = 2187-1

27x = 2186

x = 2186/27 = 80.96(2dp)

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