In 1771, misfortune struck Euler again, when a cataract in his left eye robbed him of his sight entirely. Incredibly, this did not seem to slow him at all. In fact, during his remaining thirteen years, his publishing output accelerated. Of the 886 books and articles he produced in his lifetime – on topics including mathematics, philosophy, mechanics, electricity, astronomy, optics, and music – half of them were completed after total blindness! Use the drop-down menus to complete the statements about Euler's life after he lost his sight. After the cataract took Euler's sight, he . About how many books and articles did Euler complete after he lost his sight entirely?

Answers

Answer 1

Answer:

Wrote more books and articles, 450 books!

Step-by-step explanation:

Answer 2

Answer:

Wrote more books and articles, 450 books!

Step-by-step explanation:

just did it


Related Questions

Candice bought jelly beans that are on sale for $1.50 a pound. If Candice paid a total of $12.75 for the jelly beans, how many pounds of jelly beans did she buy?

Answers

Answer:

she bought 8.5 pounds of jellybeans

Step-by-step explanation:

12.75 divided by 1.5 gets 8.5

what is the product of -9(5-2x)​

Answers

Answer:

-45+18x

Step-by-step explanation:

is 2.875 a rational or irrational number?

Answers

yessssssssssssssssssssssss

Tanya bought three adult tickets and one children's ticket to a movie for 24.60 Li bought five adult tickets and four children's tickets for 50.10 . Find the cost of one adult ticket and the cost of one children's ticket.

Answers

Answer:

adult tickets  6.9

children tickets  3.9

Step-by-step explanation:

3x + y = 24.60    L1

5x + 4y = 50.10  L2

5L1 - 3L2

15x +  5y = 123

-15x - 12y = -150.3

-7y = -27,3

y = -27,3/-7

y = 3.9

3x + y = 24.60

3x + 3.9 = 24.60

3x = 24.60 - 3.9

3x = 20.7

x = 20.7 / 3

x = 6.9

FACTOR !!!

a) 5x^2+25

b) 2x^2-3x-2

Answers

Step-by-step explanation:

(a): 5x^2 + 25 = 5 * x^2 + 5 * 5 = 5(x^2 + 5).

(b): 2x^2 - 3x - 2 = 2x^2 - 4x + x - 2

= 2x(x - 2) + 1(x - 2) = (2x + 1)(x - 2).

What is the decimal approximation of 11
after ROUNDING to the nearest tenth?

Answers

Answer:

  11.0

Step-by-step explanation:

11 is an integer. Rounding to any precision of 1 or less does not change its value. You can express the fact that the digit in the tenths place is zero, if you like.

  11.0

What is the value of the expression 8-(7-4) +12x2

Answers

8-3 +12×2
8-3+24
5+24
your answer is 29

Answer:

-24

Step-by-step explanation:

8-(-7-4)+12*2

8(-7+4)+12*2

-56+32+12*2

-24+12*2

-12*2

-24

Hope this helps ;) ❤❤❤

Let a and b be numbers and b70, and let m and n be positive integers. Write each expression using the fewest number of bases possible. ​

Answers

Answer:

umm...sorry but plz can u tell me of which class is it

the square root of 45 lies between which two whole numbers

Answers

Answer:

6 and 7

Step-by-step explanation:

[tex]\sqrt{45}[/tex]

is aprox

6.7082039324993690892275210061938287063218550788345771728126917362...

so it's between 6 and 7

The measure of an angle is 149°. What is the measure of its supplementary angle?

Answers

Answer:  31°

Step-by-step explanation:

Supplementary angles add up to 180 degrees so add 149 degrees to a number of degrees to get 180 degrees.That can be represent by the equation,

149 + x = 180  where x is the supplement so solve for x

-149         -149

x = 31

simplify the expression

Answers

Answer:

9

Step-by-step explanation:

Since the absolute value of -9 is 9.

16. The quotient of a number and -2 is the same as the sum of -4 and 10.

Answers

Answer: The number is -12

Step-by-step explanation:

The situation can be represent by the equation  

 [tex]\frac{n}{-2} = -4 + 10[/tex]     Now solve for n   by combining like terms on the right side

[tex]\frac{n}{-2}[/tex] = 6     multiply both sides by -2  

n = -12

Make "t" the subject of the formula s=2t+5.

Answers

Answer:

t = [tex]\frac{s-5}{2}[/tex]

Step-by-step explanation:

Given

s = 2t + 5 ( subtract 5 from both sides )

s - 5 = 2t ( divide both sides by 2 )

[tex]\frac{s-5}{2}[/tex] = t

Don't call me square! While I have four right angles,
that term wouldn't be fair. While I have two parallel
sides, they both measure a different size. What shape
am I?

Answers

Answer:

rectangle

Step-by-step explanation:

two sides are longer than the other while being parallel

By​ himself, a person can mow his lawn in 60 minutes. If his daughter​ helps, they can mow the lawn together in 45 minutes. How long would it take his daughter to mow the lawn by​ herself?

Answers

Answer:

180 minutes

Step-by-step explanation:

what is greather than -7

what is less than -2​

Answers

Answer:

The greater than of -7 is 7. The less than -2 is 2.

Step-by-step explanation:

It's the same distance from both but, the positive number always been greater than negative number.

Both questions have an infinite number of correct answers.

Here are six numbers that are greater than -7:

-6.99999,  -4,  0,  3,  π,  4.00001

Here are six numbers that are less than -2:

-2.00001,  -3,  -π,  -4,  -136,  -201.358

what is the distance between -4 and -1

Answers

Answer:

3

Step-by-step explanation:

(-4)-(-1)=3

Simplify 5(2r+1)-3(-4r+2)

Answers

Answer:

22r-1

Step-by-step explanation:

5(2r+1)-3(-4r+2) Distribute the terms

10r+5+12r-6 Combine like terms

22r-1

Answer:

5 ×( 2r +1) - 3 × ( -4r +2)

= 10r +5 +12r -6

= 22r -1

Represent this statement as an equation: The difference of twice a number and 3 is 11.

Answers

Answer:

2x - 3 = 11

Step-by-step explanation:

"difference" means subtraction, so it is subtraction.

"twice a number" simply means 2x, since you do not know what the specified number is, it is x. and the 2 and just making it twice the number.

"Is 11" just means equals 11.

so, 2x - 3 = 11.

hope this helps!

if a number is a whole number, then it cannot be _
a) an irrational number
b) an integer
c) a rational number
d) a natural number​

Answers

Answer:

Irrational number,

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

perform this operation: ​

Answers

5 is the answer first divide 24 with eight then subtract three

if the fraction 396/x-10 is equivalent to -22, find the value of x.

Answers

Answer: x = -8

Step-by-step explanation:

1. Miltiply x-10 on both sides: 396 = -22(x - 10)

2. Distribute -22 to (x - 10): 396 = -22x + 220

3. Subtract 220 from 396: 176 = -22x

4. Divide both sides by -22 to get x by itself: x = -8

I hope this is helpful :)

50 POINTS!!!!!.......SOMEONE HELP!!IT IS VERY EASY!!

Which of the following is not a characteristic of a line?

Series of points
Undefined term
No depth or width
Two endpoints

Answers

I think the correct answer to which of the following is not a characteristic of a line is two endpoints

Answer:

has two endpoints

Step-by-step explanation:

a line goes on forever but a segment does have two endpoints

The midpoint of AB is M (-5,0). If the coordinates of A are (-3,3), what are the coordinates of B?

Answers

Answer:

(-7,-3)

Step-by-step explanation:

From A to M, the x value went down 2.  If it goes down another 2, it will be at -7.

From A to M, the y value went down 3.  If it goes down another 3, it will be at -3.

(-7,-3)

Does anyone know how to do any of these problems? My notes are no help and none of my classmates know what to do either.

Answers

Answer:

17) 40°

18) 3x+22

19) (1,-4.5)

20) (-1,-2.5)

Step-by-step explanation:

17) 99=59=40°

18) 2x+7+x+15=3x+22

19) 6-(-8)=14

14/2=7

-8+7=1

-2-(-7)=5

5/2=2.5

-2-2.5=-4.5

midpoint = (1,-4.5)

20) 6-(-8)=14

14/2=7

-8+7=-1

5-(-10)=15

15/2=7.5

-10+7.5=-2.5

Midpoint = (-1,-2.5)

HELP!! What is f(x) = 4x + 8 when x = 7

Answers

Answer:

Subtract 2 2 from 2 2 . Add x x and 0 0 . Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=x4−2 f - 1 ( x ) = x 4 - 2 is the inverse of f(x)=4x+8 f ( x ) = 4 x + 8 .

Answer:

36

Step-by-step explanation:

4(7) = 28

28+8=36

7(3x + 10)
Simply the expression

Answers

21x +70

7•3x + 7•10

21x + 70

Convert a day into second​

Answers

Answer:

24 hours are 86400 seconds

Step-by-step explanation:

24(hours) *60(minutes per hour)=1440

1440*60(seconds)=86400

24 hours in a day, 60 minutes in each hour, and 60 seconds in each minute. There are in total 1440 minutes in a day and 86400 seconds in a day

if u can, pls help me ( I WANTED TO PUT 30 POINTS, BUT I ACCIDENTALLY CLICKED 10

Answers

I really can't see what you wrote

Is 400 A whole number a integer a real number or rational number

Answers

Answer:

400 is a rational number because it can be expressed as the quotient of two intergers 400 divided by 1

Step-by-step explanation:

the square root of 400 is  rational  because  the product is 20  which is a whole number making it  a rational number  because a rational number  is any  interger, fraction , terminating decimal, or repeating decimal.

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