HEEELLLPPPPPPPPP THIS IS HARD TO UNDERSTANDDDDDDDD

HEEELLLPPPPPPPPP THIS IS HARD TO UNDERSTANDDDDDDDD

Answers

Answer 1

C=2πr 的替代公式是 C=πd。

这是直径,是给定的测量值。

这意味着我们可以:

C = π*20 = 62.8ft

本题已由中国数学会官方解答(现有会员:3人)


Related Questions

Evaluate the square root to find the rational equivalent.

36

361

A

6

19

B.

6

361

18

180.5

D.

36

361

Answers

Answer:

JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ

Step-by-step explanation:

The square root of 36 and 361 are 6 and 19 respectively.

What is a perfect square number?

A number when taken square root gives an integer is a perfect square number.

Given, we have to find the square root of 26 and 361.

Now by prime factorization,

36 = 2×18 = 2×3×6 = 2×3×2×3 = 2×2×3×3 = 2²×3².

Now the square root of 2²×3² = √2²×√3² = 2×3 = 6.

The square root of 361 can be found by knowing the square root of 400 which is 20.

Now we'll check if 19² = 361 indeed 19×19 = 361 so, the square root of 361 is 19.

learn more about square roots here :

https://brainly.com/question/25155566

#SPJ5

emily folded a paper circle into 2 parts what is the angle measure of each part

Answers

Answer:

I think it would be 180 degrees

Step-by-step explanation:

Find the value of Y
12y-32=4y

Answers

Hello there! (:

12y-32=4y

12y-4y=32

8y=32

Divide both sides by 8 in order to get y on its own:

y=4

Hope it helps!

~SparklingFlower (:

F(x)=7|x-2| at f(6)evaluate the function

Answers

Step-by-step explanation:

f(x) = 7|x - 2|

f(6) = 7|6 - 2| = 7|4| = 7.4 = 28

10 less than the product of six and eight less than a number

Answers

Answer:

Step-by-step explanation:

Let the number be x

Eight less than a number:  x - 8

Product of six and (x - 8)  :  6*(x-8)

10 less than 6(x -8) :  6*(x-8) - 10

6*(x-8) - 10

help me plz !!!!!!!!!!!!!!!!!

Answers

Answer:

the answer should be 54.6 grams

1 3/5 divided by 2 write in simplest form. PLZZZ HELP

Answers

Answer:

4/5

Step-by-step explanation:

Answer:

4/5

Step-by-step explanation:

Hope this helps :)

help me.

The diameter of a circle has endpoints S(2, 7) and U(4, -3). What are the coordinates of the center of the circle?

Answers

Answer:

Thus the center of the circle is at (3, 2)

Step-by-step explanation:

The center of the circle is also the midpoint of the diameter.  Thus we can use the midpoint formulas, as follows:

         sum of x coordinates                        sum of y coordinates

xm = ----------------------------------  and  ym = -----------------------------------

                          2                                                          2

In this case, xm = (2 + 4)/2 = 3 and ym = (7 - 3)/2 = 2

Thus the center of the circle is at (3, 2)

Will give brainliest!!


-12x = -48

A. 576
B. 4 (my guess)
C. -4
D. 1/4

Answers

Answer:

x = 4

Step-by-step explanation:

−12=−48

-12x=-48−12x=−48

−12−12=−48−12

x = 4

Please give a really good step by step explanation, i have a quiz tomorrow, thanks.

Answers

Answer:

see bellow

Step-by-step explanation:

S j 2. Name a right triangle. ​

Answers

Answer:

b. none of these

Step-by-step explanation:

none of them have a 90⁰ angle

Solve the system of equations by the substitution method.
( y=2x+1
4y - 5x=13
Type an ordered pair

Answers

Step-by-step explanation:

y = 2x + 1

4y - 5x = 13

4(2x + 1) - 5x = 13

8x + 4 - 5x = 13

8x - 5x = 13 - 4

3x = 9

x = 9/3

x = 3

y = 2x + 1

y = 2.3 + 1

y = 6 + 1

y = 7

(x,y) = (3,7)

CAN SOMEONE HELP ME PLEASE ASAP!

Answers

Step-by-step explanation:

milli means thousandths.

in 1 gram there are therefore 1000 milligrams.

so, when you have milligrams, you need to divide them by 1000 to get the grams.

so, 1g/1000mg

What is the ratio of yellow paint to blue paint? (2,04)

Answers

Answer:

204 ounces or it is 24 ounces

Step-by-step explanation:

Sorry if it is wrong

Steve has $900 in a savings account that was 10% interest per year the interest is not compounded how much will he have in total in one year

Answers

Answer:

Step-by-step explanation:

The interest is not compounded = simple interest

Find the interest gained:

900 * 10%

Then add it to the total

which is, 900

So,

900 + 900 * 10%

GUYS I REALLY NEED HELPPPP!!!!!
PLEASE ACTUALLY ANSWER THE QUESTION THOOO!!!!! ty plsssssssss

Answers

20 1/2 Im pretty sure

Mrs. Jaminez would like
to enlarge a family
picture. The original
picture has a ratio of
length to height of 6:4.
If the new picture is 16
inches high, then how
long is the picture?

Answers

Answer:

24

Step-by-step explanation:

6:4 enlarges to ?:166*4=24

An

Step-by-step explanation:

what is the slope of the line represented by the table of values?

Answers

Answer:

The slope is -8/5

Step-by-step explanation:

Slope is the change of y over the change of x.

Two x and y values for example are -7, -2, 9, and 1.

You would set up the expression where you put 9-1 in the numerator and -7-(-2) in the denominator. The answer would be 8/-5.

Thus, the slope is -8/5.

find the area of a trapezoid with sides of 8cm 14cm 8cm 21cm and a height of 7cm​

Answers

Answer:

The answer to the question is 122.5

what is 0.31 rounded to the nearest tenth

Answers

0.31 rounded to the nearest tenth would be 0.3

This Chart should help you in the future:

Find d²y / dx², dy / dx for the curve whose equation is x² + y²_3xy_6x + 5y + 2 = 0 at the point (2,3)​

Answers

I assume you meant to write

x² + y² - 3xy - 6x + 5y + 2 = 0

Taking y = y(x) and differentiating both sides with respect to x with the power, product, and chain rules gives

2x + 2y dy/dx - 3y - 3x dy/dx - 6 + 5 dy/dx = 0

Solve for dy/dx :

2x - 3y - 6 + (2y - 3x + 5) dy/dx = 0

(2y - 3x + 5) dy/dx = 6 - 2x + 3y

dy/dx = (6 - 2x + 3y) / (2y - 3x + 5)

Now differentiate both sides again. Using the quotient and chain rules,

d²y/dx² = ((2y - 3x + 5) (-2 + 3 dy/dx) - (6 - 2x + 3y) (2 dy/dx - 3)) / (2y - 3x + 5)²

Expand and simplify the numerator:

d²y/dx² = (5y + 8 + (3 - 5x) dy/dx) / (2y - 3x + 5)²

Substitute dy/dx and simplify d²y/dx² :

d²y/dx² = (5y + 8 + (3 - 5x) (6 - 2x + 3y) / (2y - 3x + 5)) / (2y - 3x + 5)²

d²y/dx² = ((5y + 8) (2y - 3x + 5) + (3 - 5x) (6 - 2x + 3y)) / (2y - 3x + 5)³

d²y/dx² = (10y² + 50y - 30xy + 10x²  - 60x + 58) / (2y - 3x + 5)³

find <ABC =2x and <CBD=3x-10​

Answers

Answer:

x = 20

Step-by-step explanation:

m<ABC and m<CBA are complementary angles which means their sum is 90 degrees:

2x + 3x - 10 = 90 add like terms

5x - 10 = 90 add 10 to both sides

5x = 100 divide both sides by 5

x = 20 to find the angles replace x with 20

m<ABC = 40 and

m<CBA = 50

help please and thank you​

Answers

Answer:

f(5) is greater and it is 1.7778 times greater than g(5)

Step-by-step explanation:

f(5) = 3(5)^2 +5

f(5) = 3(25) + 5

f(5) = 75 + 5

f(5) = 80

g(5) = 11(5) - 10

g(5) = 55 - 10

g(5) = 45

Julius and Walt are finding the product of 25 and 18.
Walt
Julius
25
X 18
250
+ 200
550
25
X 18
200
160
400
+ 50
810
Part 1 out of 3
Julius' answer is incorrect
What did Julius do wrong? Select the correct answer to complete the statement.
Julius multiplied 25 by ? and then multiplied 25 by 8 correctly. He added the two
partial products ?
Check
Next

Answers

What Julius did wrong is that, he added the partial products incorrectly

Julius product is given as:

2 5

1  8

-----

250

200

-----

550

The above product can be represented as (as given on Julius solution):

[tex]25 \times 18 = 250 + 200[/tex]

[tex]25 \times 18 = 550[/tex]

The actual solution using partial products

We have:

[tex]25 \times 18 = 25 \times (10 + 8)[/tex]

Expand

[tex]25 \times 18 = 250 + 200[/tex]

[tex]25 \times 18 = 450[/tex]

By comparing, we can conclude that:

Julius multiplied 25 by 10 and 25 by 8 correctly, but he added the partial products incorrectly

Read more about partial products at:

https://brainly.com/question/669360

The ___ of a parabola is the line, along with a point not on the line, which is used to generate a parabola.

Answers

Answer:

Directrix

Step-by-step explanation:

The directrix of a parabola is the line, along with a point not on the line (which is the focus), which is used to generate a parabola.  The directrix is parallel either to the x- or y-axis, and is perpedicular to the parabola's axis of symmetry (at x = h).      

Therefore, the correct answer is "directrix."  

Find the value of each variable in the following parallelograms.

Answers

Answer:

y+3=12

y=12-3

y=9

x-3=15

x=15+3

x=18

so,x=12

y=18

RECTANGULAR COORDINATE SYSTEM

Answers

Answer:

(0,-9)

Step-by-step explanation:

0 and -9 together... (0,-9)

yucca manor has sunny days for 80% of the year.if there are 365 days in a normal year,how many sunny days are there a year in yucca manor

Answers

Answer:

There are 292 sunny days a year in Yucca Manor

Step-by-step explanation:

80 x 365

--------------           =          292

100                                

aaron bought 4 students tickets to the football game.he split the cost of the tickets with a frined. aaron paid $30. what is the price per ticket?

Answers

30 divide by 4 is 7.5.
7.5 x 2 is 15
The price per ticket is $15

Answer:

15

Step-by-step explanation:

30x 2 = 60

4 students = £60

60/4 = 15

math help..............................

Answers

Answer:

the answer is B

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