solve the following quadratic equation by factorisation method 3 x square - 2 root 6 × + 2 =0​

Answers

Answer 1
3x^2 -2root(6)x + 2 = 0

(root(3)x)^2 -2[root(3)x]root(2)+ (root(2))^2 = 0

let a = root(3)x and b = root(2)

a^2 -2ab + b^2 = 0

(a - b)^2 = 0

by the null factor rule,

a - b = 0

sub back in a and b

root(3)x = root(2)

x = root(3)/root(3)

Related Questions

Tessa wants to install a zipline between two trees. The zipline will be strung between the trees at points 42 feet and 3 feet high. Suppose the trees are 60 feet apart. What is the length of the zipline to the nearest tenth of a foot

Answers

The length of the zipline is found using Pythagoras's theorem, which gives

the length of the hypotenuse side of a right triangle.

Length of the zipline is approximately 71.56 feet

Reasons:

Height at which the zipline will be tied to one of the trees = 42 feet

Height at which the zipline will be tied to the other tree = 3 feet

The distance between the trees = 60 feet

Required:

The length of the zipline

Solution:

The length of the zipline is found as follows;

Taking one of the trees to be at the origin, the coordinates of one of the tying point = (0, 42)

The coordinates of the other tying point = (60, 3)

The in the imagined right triangle formed by the zipline and the distance

between the trees, the length of the zipline is given by Pythagoras theorem

as follows;

Length of zipline = [tex]\sqrt{(60 - 0)^2 + (3 - 42)^2} = 3 \cdot \sqrt{569}[/tex] ≈ 71.56

Length of the zipline ≈ 71.56 ft.

Learn more here:

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find difference

54.59- 26.61

A. 81.20
B. 38.98
C. 32.18
D. 27. 98

Answers

Answer:

D

Step-by-step explanation:

Answer:

D) 27.98

Step-by-step explanation:

All you have to do is subtract, have a nice day <3


In the given figure what is the measure of arc BC

Answers

Answer:

48°

Step-by-step explanation:

Both angles A and D intercept same arc BC, hence congruent:

7x - 4 = 2x + 167x - 2x = 16 + 45x = 20x = 4

Arc measure is twice the measure of inscribed angle:

mBC = 2(7*4 - 4) = 48

factor completely. show full work

Answers

Answer:

here's the answer mark me brainliest!!

Answer:

Step-by-step explanation:

2p² + 8pq - pq - 4q² = 2p(p + 4q) - q( p + 4q)

                                 = (p + 4q)(2p - q)

Given 3 + 7 + 11 + 15 + ... find S20

Answers

=4n - 1
Since the sequence is add 4 and 3-4 = -1

20 x 4n = 80-1 = 79

How do I solve 3 - 4.5 =

Answers

Answer:

-1.5

Step-by-step explanation:

3.0 - 4.5 is the same as 3.0 + (-4.5)

in this instance you subtract 3.0 from 4.5 and keep the sign of the larger number, which is 4.5 (you disregard the negative sign)

Find the area of the shape below

Answers

Answer:

Total Area = 235cm^2

Step-by-step explanation:

Step 1 ) we have our lengths 11 and 20 so we need to separate the into 2 shapes  Step 2)   Label and draw new shape 20-11 = 9  to show (Shape square  1) = measuring 9 *9 and   another  (Shape Rectangle 2) = 11* 14  Step 3) Show how you do the multiplication of Square shape 9* 9 = 81cm^2  and Area Rectangle 11 * 14 = 154 cm^2   Total Area = 81+154 = 235cm^2    You can if you like in table multiplication show 11*14 by adding a zero underneath the 14 = 140 +14 = 154 then add and show +81 = 235cm^2 It is always easier to retain a shape if subtracting to get a 2nd shape this way it saves time with subtraction and in my example only needed to subtract 20-11 = 9 then 9*9 = 81cm^2 to retain the 14 *11 = 154cm^2 area for the rectangle

Answer:

Step-by-step explanation

full rectangle area (see figure) - small rectangle area

14 * 20 - [(14 - 9) *(20 - 11)] =

280 - (5 * 9) =

280 - 45 =

235 cm²

1 Probably: a) between $20,000 and $40,000

Answers

Answer:

there is not enough info to answer the question

Step-by-step explanation:

can you repost it?

There is not enough information to answer this

2 pts
Sammy wants to buy a new stereo priced at $439. He enters into an agreement to pay
$22 a month for 24 months. How much will the finance charge be for this purchase?
State your answer in terms of dollars rounded to the nearest cent (hundredth).

Answers

Answer:

$308

Step-by-step explanation:

I am not sure if this is correct. But try it and let me know if it was

What does 6523 ÷ 65 equal?

Answers

100.3538461538462 is the answer

Answer:

~100.35385

Step-by-step explanation:

You just gotta take the time to do the long division. Alternate forms could be 100 23/65

pls solve this thanks ​

Answers

The answer for the green box is - 2p=18

write the decimalas a percent 4.68

Answers

Answer:

468% is the percent of 4.68

Step-by-step explanation:

4.68 x 100 = 468

A large serving of soup from a take-out restaurant is 4/5 liter. The restaurant has 3 liters of soup. The diagram models the number of servings of soup.

How many servings of soup does the restaurant have?

Answers

Answer:

The answer is 2 and 2/5 i hope this can help.

Step-by-step explanation:

Describe a way to obtain the same image without using rotations. (Can’t use stuff like 180°)

Answers

Answer:

Step-by-step explanation:

Reflection over x-axis then reflection over y-axis

Evaluate the expression for x = 8
x + 5

5
8
3
13

Answers

Answer:

1st one

Step-by-step explanation:

:) pls mark brainliest

shen works mowing lawns and babysitting. he earns $9.40 an hour for mowing and $7.80 an hour for babysitting. how much will he earn for 4 hours of mowing and 6 for babysitting?

Answers

Answer:

$84.40

Step-by-step explanation:

mowing: $9.40/hour

babysitting: $7.80/hour

4 hours mowing + 6 hours babysitting =

= 4 × $9.40 + 6 × $7.80

= $37.6 + $46.8

= $84.40

Answer:

$84.40

Step-by-step explanation:

$9.40 · 4 + $7.80 · 6 = ?

9.4 · 4 = 37.60

7.8 · 6 = 46.80

37.60 + 46.80 = $84.4

I hope this helps!!

Please help asap I’ll give you 20 points

Answers

Answer:

first one is left second one is right

Answer:

What is that on?

it is blury

Vinnie is searching online for airline tickets. Two weeks​ ago, the cost to fly from Hartford to Denver was ​$220. Now the cost is ​$305. What is the percent​ increase? What would be the percent increase if the airline charges an additional​ $50 baggage fee with the new ticket​ price?

Answers

Answer: 58

Step-by-step explanation:

Answer:

Question 1.  38.6 %   2.  61.4%

Step-by-step explanation:

(New Cost - Old Cost) ÷ old Cost × 100

    (305 - 220) ÷ 220 x 100

    =   85/220 x 100

    = 38.6 %

2.  New Cost 305 + 50 = $355    

     

(Now new cost - old cost) ÷ old cost ×  100

    (355 - 220)  ÷ 220 × 100  

    =  135/220 × 100

        61.4%  

What is the probability of
spinning a yellow?

Answers

Answer:

is 2/8

Step-by-step explanation:

Answer:

12.5

Step-by-step explanation:

Donovan bought 5 1/2 kilograms of flour for $8.25. How much does it cost to buy 1 kilogram of flour?

Answers

Answer: Donovan paid less than $1.25 per kilogram of flour

Donovan paid less than $1.25 per kilogram of flour.

what is the slope of the line passing through the points (2,5) and (0,-4)?

Answers

Answer:

9/2

Step-by-step explanation:

there are a total of 45 bikes. if the ratio of blue bikes to black bikes is 4 to 5, how many of the bikes are blue?

Answers

Answer:

20

Step-by-step explanation:

4 + 5 = 9

45 / 9 = 5

4 * 5 = 20

hope this helps

Round 16.4829 to the nearest hundredth

Answers

Answer:

16.48

Step-by-step explanation:

The round off of 16.4829 to the nearest hundredth is 16.48.

What is Rounding off?

Although the term "rounding" is a general one, we typically use the terms "round up" or "round down" to indicate whether the number has gone up or down after being rounded. The supplied number is said to be rounded up when the rounded number is increased, and it is said to be rounded down when the rounded number is dropped.

Given:

16.4829

You rounded to the nearest hundredths place.

The 8 in the hundredths place rounds down to 8, or stays the same,

because the digit to the right in the thousandths place is 2.

and, When the digit to the right is less than 5 we round toward 0.

So, 16.4829 was rounded down toward zero to 16.48.

Learn more about round off here:

https://brainly.com/question/13391706

#SPJ2

For question 1 please look at the image below

Answers

Answer:

Step-by-step explanation:

a) Number of families having income between $ 20000 - $ 40000 = 100

b) Number of families having income less than $40000 = 100 + 40 = 140

Any hot topic online promo codes???​

Answers

try YAY50, brainliest?

Which ratio is equivalent to 5:9? with a twist ( only those options)

Answers

[tex]\huge\bold\green{Option\ :-\ D}[/tex]

Divide the option with 4 so that you can get the equivalent ratio to 5:9 .

Salina wants to buy a dress that sells for $55.00. If the sales tax is 8%, exactly how much will the dress costs?

Answers

Answer:

$44

Step-by-step explanation:

it's math

Answer:

$59.4

Step-by-step explanation:

Turn the percentage into a decimal.

8% = 0.08

Multiply.

55 * 0.08 = 4.4

Add.

59.4

Best of Luck!

guys help me with this question

Answers

Blank 1: 7

Blank 2: 3

Blank 3: 2

Blank 4: 2

I really need help on this problem

Answers

Answer:

64??

Step-by-step explanation:

If not I'm sorry I tried :)

Answer is simple you add all the angles

write and equation on the line that passed through (0,-1) and is perpendicular to the line y =1/9x+2

Answers

Answer:

y=-9x-1

Step-by-step explanation:

since it is perpendicular, the slope must be the opposite reciprocal (-9x) and now we plug the coordinates in, -1=0+b, b is -1

Answer:

y=-9x-1

Step-by-step explanation:

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