x2 - 4x - 3=0, solve the quadratic equation

Answers

Answer 1

Answer:

-3/2

Step-by-step explanation:

Answer 2

Answer:

x=3,1

................


Related Questions

If the original square is 3 in by 7 in, but then you enlarge the square to 6 in by 14 in, what percent of the smaller original square's area is the larger square's area?

Answers

Answer:

Step-by-step explanation:

100(14(6))/(3(7))

100(84/21)

100(4)

400%

Please help


1. Rafael stands 55 feet from the tower and uses a clinometer to measure the angle of elevation to the

viewing platform as 37º. How far up the tower is the viewing platform?

Answers

Answer:

41.4feet

Step-by-step explanation:

Using the SOH CAH TOA identity

Given the following

Distance of Rafael from the tower = 55feet = Adjacent

Angle of elevation = 37degrees

Required

Height of the tower = Opposite

Since Tan theta = opp/adj

Tan 37 = x/55

x = 55tan37

x = 55(0.7536)

x = 41.4

Hence the tower is 41.4feet up the viewing platform

what is 3 (2х-5) 2х+3=1

Answers

3(2x-5)+2x+3=1

6x-15+2x+3=1

8x-12=1

    +12 +12

8x=13

/8   /8

x=1.625

---

sorry if this doesn't help

Can someone plz help me! Thx!

Answers

Answer:

q

Step-by-step explanation:

a

Answer:

Step-by-step explanation:

Look at this triangle.
B
11 cm
4 cm
Work out length AC.
(my teacher told me to start out with c first, c= an something like that I don’t remember)

Answers

Step-by-step explanation:

<c =90 °

So, Pythagoras theorem can be used,

Hypotenuse ² = base ² + altitude ²

AB²=AC²+BC²

11²=AC²+4²

11²-4²=AC²

121-16=AC²

Root 105=AC

AC=10.2 cm

The length of AC is 10.25 cm

What is pythagorean theorem ?

If ΔABC is a right angle triangle, then

AB² = BC²+AC²

where AB = Hypotenuse, BC & AC are adjacent sides of the right angle

What is the required length of the side ?

Given, hypotenuse = AB = 11 cm

One of adjacent sides = BC = 4 cm

We have to find the length of AC.

Using pythagorean theorem,

AB² = BC²+AC²

⇒ AC² = AB² - BC²

⇒ AC² = 11²-4²

⇒ AC² = 121-16

⇒ AC = √105

⇒ AC = 10.25

So the length of AC = 10.25 cm

Learn more about pythagorean theorem here :

https://brainly.com/question/343682

#SPJ2

What is 2x+7y=28 in slope intercept form

Answers

Answer:

y = -2/7x + 4

Help me please !!!!! I need help

Answers

10 percent of 300 is 30

3 hours and 10 minutes =190

Please help! Thank you! :))

Answers

The percent increase is a 30% increase.
Explaination: if you take 195-150 and get 45, you get close to 30% so it’s pretty close to the answer.

A truck traveled 144 miles on 12 gallons of diesel fuel. At
this rate how much fuel will the truck use to go 720 miles?

Answers

Answer:

60 gallons

Step-by-step explanation:

144/12 = 12 mi/gal

720/12 = 60

Answer: 60 gallons of diesel fuel

Steps:
720/144 = 5
5 * 12 = 60
60 gallons for 720 miles

PLEASE HELPPP! I have to solve for X, this was my warmup but I'm not smart and I need to turn it in today!

Answers

Answer:

X=8

Step-by-step explanation:

48+22=70

4×8=48

so X is 8

I need this answer ASAP! Please help!
A ladder is leaning against a building. The ladder forms an angle of 77° with the ground. The distance from the base of the ladder to the base of the building is 8 feet.

Answers

Answer:

Step-by-step explanation:

sin77=h/8

h=8sin77

h=8(0.9744)

h=7.7952ft

At a flea market, used computer games are sold at the prices shown in the table below.

Number of Games Price ($)
2 9.00
5 22.50
7 31.50

Answers

there’s no question....

The proportion relation between the number of games and the price is given by the proportionality constant k = 4.5

What is Proportion?

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the number of games be represented as x

Let the cost for the total number of games be y

And , the values of x = { 2 , 5 , 7 }

Now , the values of y = { 9.00 , 22.50 , 31.50 }

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

On simplifying , we get

9 = k ( 2 )

Divide by 2 on both sides , we get

k = 4.5

And , 22.50 = k ( 5 )

Divide by 2 on both sides , we get

k = 4.5

Therefore , the proportionality constant is k = 4.5

Hence , the proportion is y = 4.5x

To learn more about proportion click :

https://brainly.com/question/7096655

#SPJ2

The complete question is :

At a flea market, used computer games are sold at the prices shown in the table below.

Number of Games Price ($)

2 9.00

5 22.50

7 31.50

Do the Number of the games and price form a proportional relationship? choose correct response

1. Yes there is a constant of proportionality of 11.25.

2. Yes there is a constant of proportionality of 4.50.

3. No there is not a constant of proportionality.

4. No the Slope is 4.5

Evaluate using P E M D A S 2 x 3 + 4

Answers

Step-by-step explanation:

We would do multiplication first, because of order of operations.

2x3=6

Now we add.

6+4=10

hope it helps! :3

First (2•3)+4
Then 6+4
Equals =10

What is the value of x? Round to the nearest tenths place.

Answers

Answer:

39^2-15^2=1296

/

put this number in a square root and it will give you=36

×=36

Step-by-step explanation:

hypotenuse minus short side it gives another short side

In the figure below, m 2 2 = 76°. Find m Z1, m3, and m 24.
m 21 =
= 0
4
1
m 23 =
3
2.
m 24

Answers

Answer:

Chapter 2 Review WS. Period: Date: 1. A transversal intersects two parallel lines. ... 2. Find the measure of angles 1-4 and 6-8, using the following diagram. meisen ... 4. Find the measure of angles 1-7 given that lines m and n are parallel and t is transversal. ... Find the measure of angle 1. m24 = 123, mZ1 = 2x, mZ2 = x +42.

Step-by-step explanation:

HELPP ME!! Ya'll brainly has answers for this question but they're all different answers!! I'm so unsure! One of the offices at the company was being repainted. Riley’s mother challenged him to figure out how many quarts of paint would be needed. The office is 16 ft long and 12 ft wide, and the height of each wall is 10 ft. The office floor, ceiling, and door are not being painted, and there are no windows in this office. The door opening measures 3 ft by 8 ft. One quart of paint covers 2 100 ft . How many quarts of paint are needed to paint the room, if only full quarts can be purchased? Show your work.

Answers

Answer:

3.8 quarts

Step-by-step explanation:

Solve each equation.

d(d+3)-d(d-4)=9d-16

Answers

Answer:

2d+3d-2d+4d= 9d-16

2d is cancelled

3d+4d=9d-16

7d=9d-16

16=9d-7d

16=2

16/2

d=8

ORDER
ORDER OF OPERATIONS
21 divided by 3 +4

Answers

Answer:

11

Step-by-step explanation:

21/3+4

7+4

11

.......


Which of the following numbers makes the inequality -2 A-5
B
-2
C 5
D 6
E
-3
6
Evie's test score is greater than 65, but no more than 90. An inequality that represen
this is

Answers

Answer:

opposite word of disperse

triangle ABC is similar to triangle EHG , find the measure of angle EHG .

Answers

Answer:

[tex]\angle EHG = 80[/tex]

Step-by-step explanation:

Given

ABC ∼ EHG

See attachment

Required

Determine [tex]\angle EHG[/tex]

First, we calculate x in ABC

[tex]x + 2x + 60= 180[/tex]

[tex]3x + 60= 180[/tex]

[tex]3x = 120[/tex]

[tex]x = 40[/tex]

The corresponding angle to [tex]\angle EHG[/tex] is [tex]\angle ABC[/tex]

and

[tex]\angle ABC = 2x[/tex]

[tex]\angle ABC = 2 * 40[/tex]

[tex]\angle ABC = 80[/tex]

Hence:

[tex]\angle EHG = 80[/tex]

3a²b3(-4b3 + 2b2a - 7) =

Answers

Answer:

the answer is =6a^3b^5−12a^2b^6−21a^2b^3

Step-by-step explanation:

hoped I helped:)

I need help on this pls help meh

Answers

Answer:

the missing side T-F is 8. the missing side F-K is 3.

Step-by-step explanation:

hope I helped

Answer:

(SR*ST)+(FK*KL)=66cm²

Step-by-step explanation:

RL=ST+F K

9= 6+x

F K=3

T F=8

Area of this figure= (3*2)+(6*10)

=6+60=66 cm²

A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?

Answers

Answer:

5 pigs

Step-by-step explanation:

A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?

Let us represent:

Number of pigs = x

Number of ducks = y

Our system of equations is given as:

A farmhouse shelters 16 animals, some are pigs, and some are ducks.

x + y = 16...... Equation 1

x = 16 - y

Altogether there are 42 legs.

Ducks have 2 legs(feet) , pigs have 4 legs,

4x + 2y = 42..... Equation 2

We substitute

16 - y for x in Equation 2

Hence:

4(16 - y) + 2y = 42

64 - 4y + 2y = 42

Collect like terms

- 4y + 2y = 42 - 64

-2y =- 22

y = -22/-2

y = 11 ducks

Solving for x.

x = 16 - y

x = 16 - 11

x = 5 pigs

Therefore, we have 5 pigs

Solve for XSolve for X
Solve for X
Solve for X
Solve for X
Solve for X
Solve for X

Answers

Answer:

Step-by-step explanation:

Because the angles are opposite each other they are equal so we can say

4x-25=75

4x=100

x=25

x= 25

4x -25 = 75 ( vertically opposit angle)

4x = 100

x = 100/4

x= 25

angle = 75

hope it helps

Need help with all three ​

Answers

Answer:

7. 3000

8. 768

9. 378

Step-by-step explanation:

7. 60×50=3000

8. 48×16=768

9. 21×18=378

Can someone help me please????

Answers

i think it would be the last one sorry if i’m wrong

Help pls and thanks :)

(Are the two triangles similar? Explain, step by step, how you know. )

Answers

Answer:

The two triangles can be considered similar as Angle A is 70 degrees and Angle B is a congruent angle to Angle A, which can be proven by adding 70 to 110 which shows a 180 degree angle (flat angle). Therefore we know that this triangle is similar

Step-by-step explanation:

Please help me solve 8n+2-6n-13=9+2n-13

Answers

no solution since the 2n on both sides cross out

Answer:

It has no solution, unless there's a specific way it needs to be solved

Step-by-step explanation:

Find the surface
area of 11mm 8mm 22mm

Answers

Answer: The chosen topic is not meant for use with this type of problem. Try the examples below.

Step-by-step explanation:

The temperature in February was at most 6°F. Use t as your variable.

Answers

Answer:

t ≤ 6°F

The temperature(t) was less than or equal to 6°F.

Other Questions
Im almost done but I need help :) HELP ASAP PLS!!what is composite area?? How do we use it in the real world??? C'omo se dice Open the door HELPP ME!! Ya'll brainly has answers for this question but they're all different answers!! I'm so unsure! One of the offices at the company was being repainted. Rileys mother challenged him to figure out how many quarts of paint would be needed. The office is 16 ft long and 12 ft wide, and the height of each wall is 10 ft. The office floor, ceiling, and door are not being painted, and there are no windows in this office. The door opening measures 3 ft by 8 ft. One quart of paint covers 2 100 ft . How many quarts of paint are needed to paint the room, if only full quarts can be purchased? Show your work. Which of the following numbers makes the inequality -2A-5B-2C 5D 6E-36Evie's test score is greater than 65, but no more than 90. An inequality that representhis is anesthesia definition how do i solve this and what is the answer? You have a container which has the capacity to hold 3 L water. If it already has 2.25 L water in it, how much more water in mL can you still add to fill it completely? At a flea market, used computer games are sold at the prices shown in the table below.Number of Games Price ($)2 9.005 22.507 31.50 geometry question pls help!!! True or false - The only way to charge an object with static electricity is by rubbing it against another object. HELPPP ASAP !! how are different natural disasters related? what different causes and effects do you know about? Look at the following assignment statements:word1 = "rain"word2 = "bow"What is the correct way to concatenate the strings?1 newWord = word1 == word22 newWord = word1 + word23 newWord = word1 * word24 newWord = word1 - word2 What is the value of x? Round to the nearest tenths place. Does Chrome Make Chromebooks Fastest Responders Win BrainliestGoodluck#QuickContest Factor the follow expression:8x10Select one:2(x5)2(4x5)8(x10)2(4x10) I will give brainliest.How are the phrases disguise and secret identity used in the text?A. They are used interchangeably.B. They are used to describe a hidden part of Clark/Supermans character.C. Disguise implies a falsification or covering up, while secret identity suggests a true character which must remain hidden for issues of safety.D. Disguise implies a more physical difference (such as with a costume), while secret identity suggests a difference in status and personal presentation.I will give brainliest. 5. Which is NOT a cause of the War of 1812?"War hawks pushing for a fightO British involvement in Dutch/US trade disputesO British establishing forts in the US' Northwest TerritoryBritish Indian alliances in the Northwest Territory answer pls>>>>>.pls There are__________ justices are on the Supreme Court Group of answer choices515912