mathematicians find an easier way to solve quadratic equations, how do they do it?

Answers

Answer 1

Answer:

His secret is in generalizing two roots together instead of keeping them as separate values.

Mark brainiest


Related Questions

(c) At an auction, a table was bought for £56.
This was 20% below the table's actual value.
What was the table's actual value?

Answers

£70
if 100%= ?
80%=56

100/80=1.25
1.25 x 56
=70

Part B: Melissa designed the kite shown and would like to know the minimum amount of fabric needed to cover the kite. Each unit is 1 inch,

48 in

69 in

286 in

572 in?

Answers

Answer:

69.4 inches

Step-by-step explanation:

A kite is a quadrilateral (has four sides and four angles) with two pairs of congruent adjacent sides. The diagonals of a kite are perpendicular to each other.

To prove that quadrilateral ADBC is a kite, the diagonals of the kite have to be perpendicular to each other.

AD ⊥ BC.

Since adjacent sides are equal to each other, hence:

BC = BD, AC = AD

The coordinate of the vertices are A(11, 0), B(11, 26), C(0, 18) and D(22, 18)

[tex]BC=\sqrt{(0-11)^2+(18-26)^2} =13.6\ unit\\\\AC=\sqrt{(0-11)^2+(18-0)^2} =21.1\ unit[/tex]

BC = BD, AC = AD

Perimeter of kite = BC + BD + AC + AD = 2BC + 2AC = 2(13.6) + 2(21.1) = 69.4 units = 69.4 inches

Answer: 69

Step-by-step explanation:

Someone please help me I’ll give out brainliest please dont answer if you don’t know

Answers

3% of $750 is $22.50 so the answer is $772.50.

Answer:

$806.25  i *think*

Step-by-step explanation:

3% of 750 is 22.5 so add that every year

Year 1 : 750 + 22.50 = 772.50

Year 2 : 772.50 + 22.50 = 795.00

Year 2.5 : 795.00 + 11.25 = 820.50

Which expression is equivalent to 5(2x +10)

Answers

Answer:(5 + x)(2x + 10)

Step-by-step explanation:

Im pretty sure its that

The expression that is equivalent to 5(2x +10) is 10(x+5).

The Given expression is:

[tex]5(2x+10)[/tex]

What is an expression?

An expression is a set of the algebric terms combined using mathematical operations.

The given expression can be written as:

[tex]5*2x+5*10[/tex](using the distributive property)

[tex]=10x+50[/tex]

[tex]=10(x+5)[/tex]

So, equivalent expression =10(x+5)

Thus, the expression that is equivalent to 5(2x +10) is 10(x+5).

To get more about the expressions visit:

https://brainly.com/question/945593

please help!!!!!!!!!!!!​

Answers

Step-by-step explanation:

1 3/4 × 4/7 = 1

вот правильный ответ я проверяла )

Answer:

4/7

Step-by-step explanation:

13/4.x=1

7/4x=1

x=4/7

an eagle flew 20 m above sea level.A fish was 35 m vertically below the eagle. find the position of the fish​

Answers

Answer:

15m below sea level

Step-by-step explanation:

Given data

Distance of eagle from sea= 20m

Distance of fish from eagle = 35m

Required

The distance of the fish from below the sea level

= 35-20

= 15m

Hence the fish is 15m below sea level

On Friday you biked 6.4 miles on Saturday you biked 9.8 miles how many miles have you biked altogether

Answers

Answer:

16.2 miles

Step-by-step explanation:

just add 6.4 and 9.8 you will get 16.2 miles

Find the circumference of each circle. Use 3.14

for π. Round to the nearest tenth if necessary.

Answers

Answer:

Step-by-step explanation:

42(3.14)=131.9(nearest tenth)

find the center of the circle given the question (×-2)²+(y+6)²=10? A. (2,-6) B. (-2,6) C. (2,6) D. (-2,-6)​

Answers

Answer:

A. (2,-6)

Step-by-step explanation:

(×-2)²+(y+6)²=10

Equating it with

(×-h)²+(y -k)²=10

h = 2 & k = - 6

(h, k) = (2, - 6)

How do you say $183,240 in word form ?

Answers

one hundred eighty-three thousand, two hundred forty

Answer:

one hundred and eighty-three thousand two hundred forty

Step-by-step explanation:

how to change
a fraction into a percent

Answers

Answer:

[see below]

Step-by-step explanation:

If you are given a fraction, convert it into a decimal by diving the numerator by the denominator.

After converting it into a decimal, you multiply it by 100 to get the percent value. After that, you add the percent sign.

Example:

[tex]\text{Convert \frac{5}{10} into a percent.}[/tex][tex]\text{Convert } \frac{5}{10} \text{ into a percent.}\\\\\\\rightarrow \text{Step One: Convert into decimal.}\\\\\frac{5}{10}=0.5\\\\\rightarrow \text{Step Two: Multiply by 100 and then add percent sign.}\\\\0.5 * 100 = 50\\\\[/tex]

50%

[tex]\frac{5}{10}=50[/tex]%

Hope this helps.

Answer:

Divide the numerator into the denominator, then move the decimal 2 places to the right.

Step-by-step explanation:

Let's use 3/4 as an example.

Divide 3 into 4 and you get 0.75

Move the decimal 2 places to the right and you get 75

Then just add a percent sign (75%)

I hope this helps, and have a great day! :)

The price of a television is $567.31. The state sales tax rate is 8.3%.

What is the total cost of the television?

Answers

8.3%= 0.083

567.31 * .083 = 47.086 = 47.09

567.31+47.09= $614.40

Total cost is $614.40

Answer:

[tex]2.64957x10 [/tex]

[tex]8547 \times 31[/tex]

[tex] = 264951[/tex]

Toms banks baleances at the end of the months 1,2,3 are 1600 ,1664,1730.56 what will toms balance be at the end of month 5

Answers

Answer:

Tom's balance at the end of month 5 = 1,871.77

Step-by-step explanation:

a = 1600

ar = 1664

ar² = 1730.56

common ratio, r = ar/a

= 1664/1600

= 1.04

r = 1.04

what will toms balance be at the end of month 5

Month 5 = ar⁴

= 1600 * 1.04⁴

= 1600 * 1.16985856

= 1,871.773696

Approximately 1,871.77

Tom's balance at the end of month 5 = 1,871.77

Find the slope of the line that passes through these two points: (-3, -7) and (5, -5) -4 -1/4 1/4 4

Answers

Answer:

It will be 1/4

Step-by-step explanation:

Hope this helped

ALGEBRA 2:

my brain can’t handle this please i’m begging 35 points!! + brain lies

Answers

Answer:

Batoon you okay U-Pack guitar a Jeffrey vaginas how much are I guess you're everything

The a part is figure 1, but in b I’m not sure if is 6.30 or 143.44, I just hope this help u.

To begin a bacteria study, a petri dish had 2500 bacteria cells. Each hour since, the number of cells has increased by 4.6%.
Let ( be the number of hours since the start of the study. Let y be the number of bacteria cells.
Write an exponential function showing the relationship between y and

Answers

Answer:

Amaxesha amnandi ukuba unexesha elimnandi enkosi kuThixo ukuba unexesha elimnandi enkosi kuThixo ngokuba nexesha elimnandi enkosi kuThixo ngokuba nexesha elimnandi bulela uThixo ngokuba nexesha elimnandi

Sandra has a $20 itunes gift card and spends $3 each month. Which of the following functions models how much money Sandra has on her gift card after x months?

Answers

Answer:

x3-20

Step-by-step explanation:

x stands for the month 3 is the money that she is spending each month if you multiply those together you get the amount of money she has spent over x amount of months minus the 20 dollars on her gift card

3 1/2 + 1 1/3 = ??
Simply your answer and show ur work

Answers

Answer:

29/6

Step-by-step explanation:

Answer: 29/6 or 4 5/6

Step-by-step explanation:

3+1 = 4

Find a common denominator between 1/2 and 1/3

1/2 becomes 3/6 and 1/3 becomes 2/6

2/6 + 3/6 = 5/6

Now add the 4 back:

4 5/6

Solve for x in the following figure

Answers

Answer:

x = 80

Step-by-step explanation:

∡KJL = 180 - (60 + 40)

∡KJL = 80

∡XJK + ∡KJL = 180  (they are a linear pair of angles)

x + 20 + 80 = 180

x + 100 = 180

x = 80  


John earns $7.50 per hour at his job. Becky's earnings are given by the equation P = 8.25x, where P is her
total earnings, in dollars, and x is the number of hours worked. If they each work 9 hours, who earns more
and how much more

Answers

in 9 hours
john earns $67.5
becky earns $74.25
becky earns $6.75 more than john



7/17% of a quantity is equal to what fraction of the quantity?

Answers

Answer:

41/10,000

Step-by-step explanation:

7/17% = 0.41% = 0.0041

41/10,000

The given quantity 7/17% is a whole fraction of the number 41.17.

What is the percentage?

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

What is the fraction?

Fraction is defined as the number of compositions that constitutes the Whole.

here,
Let the x be the required number,
x  = 7 / 17%
x = 7/ 0.17
x = 41.17

Thus, the given quantity 7/17% is a whole fraction of the number 41.17.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ1

Joong Ki paid a total of ₱90 for 6 singkamas and 11 ponkans. If a singkamas and a ponkan cost ₱10, how much does each cost? ANSWER: Singkamas is ₱___ while ponkan is ₱___. *

Answers

Step-by-step explanation:

singkamas: 60 pesos

ponkan: 110 pesos

At cycle and sport, customers can rents bikes, electric scooters, kayaks, canoes, or paddle boards by the hour. Mr Thompson is renting a kayak and a paddle board for his family. He has a coupon for $10 off. Which expression represents the total cost for Mr. Thompson to rent a kayak for k hours and a paddle board for p hours..

Answers

Answer: its 18k+22p-10!

Step-by-step explanation:

I did the test got it correct, PLS MARK BRAINLIST

Hence, the total cost for Mr. Thompson to rent a kayak for [tex]k[/tex] hours and a paddle board for [tex]p[/tex] hours is [tex]18k+22p-10![/tex].

What is the equation?

The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.

Here given that,

At cycle and sport, customers can rents bikes, electric scooters, kayaks, canoes, or paddle boards by the hour. Mr Thompson is renting a kayak and a paddle board for his family. He has a coupon for $[tex]10[/tex] off.

So,the total cost for Mr. Thompson to rent a kayak for [tex]k[/tex] hours and a paddle board for [tex]p[/tex] hours is [tex]18k+22p-10![/tex].

Hence, the total cost for Mr. Thompson to rent a kayak for [tex]k[/tex] hours and a paddle board for [tex]p[/tex] hours is [tex]18k+22p-10![/tex].

To know more about the equation

https://brainly.com/question/12788590

#SPJ2

ooth
3 12100
Х
-3
-2.
у
5
2
-1
4
-7
What is the slope?

Answers

-4 that will be your answer

if 5 people spend rupees 5000 on food in 10 days how many people will spend 10000 in 4 days​

Answers

if 5 people spend rupees 5000 on food in 10 days how many people will spend 10000 in 4 days = 25

A fish tank has 45 gallons of water in it. If it is 90% full, what is the full capacity of the fish tank? The fish tank can hold gallons of water when full to capacity.​

Answers

the answer is 50 gallons because 45 gallons is 90% of 50 gallons

Answer:

My answer is 55 or 60  which would be 100%

Step-by-step explanation:

A baker will use 24 cups of flour to make 9 loaves of bread. The total number of cups he will use for each loaf of bread is between.

Answers

It is between 2 and 3 or 2.66

Answer:

2.66 cups for each loaf

Step-by-step explanation:

24 cups / 9 loafs = 2.66 cups

Brainly plz :))

need help with 1-4 i don't really understand them and if you can give me work as well that would be great thank you

Answers

Answer:

Mm pues la verdad si quisiera responderte pero no le entiendo a eso desde cuarto así que bye

WILL GIVE BRAINLEST Find the measure of the arc or central angle indicated. Assume that lines which
appear to be diameters are actual diameters.
find the measure of arc FHJ

Answers

Answer:

It should be 261 degrees.

Step-by-step explanation:

Las medidas interiores de una piscina portátil cilíndrica son 0.85 m de radio y 0.60 m de altura.
¿Cuántos litros de agua le caben?

Answers

Answer:

es ovio

Step-by-step explanation:

investiga xd xd xd

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