The surface area of a sphere is π sq.cm. If its radius is
doubled by,how much is its surface area increased ?​

Answer:  a: 8.25  b: 49.5

Step-by-step explanation:

Answer:

d=1

Step-by-step explanation:

2x1=7 is 9 :D

Hope this helps!!

Answer:

D equals 1

Step-by-step explanation:

2d+7=9

minus 7 from both sides of the equation to get:

2d=2

divide 2 from both sides to get

d=1

Answer:

58

Step-by-step explanation:

i think

Answer:

Okay I haven't done this in awhile but okay so (1) if you are going off of the Y's then no it would be a function X's Yes its a function, (2) None of the dots are on the same area so like if you draw a line down from where each of the dots are and it touches another dot then its not a function, but lucky for you it is a function. (3) isn't function because if you can see number 9 have 2 lines going from it so its not  (4) is a function because if you draw a bunch of lines and they don't go through the line in the middle your good. I hoped this helped you. Bye Bye.

Step-by-step explanation:

Answer:

Round your answer to the nearest tenth. 1. 2. 15 X ... For questions 16-21, solve for x. ... 19. 29 70 6 18 x = type x = type 20 . 21. 17 25 A 21 19 x = type type 22.

Step-by-step explanation:

Answer:

2.5x + 20 = y

Step-by-step explanation:

first, assign a variable to each unknown:

since we don't know how many videos were rented, that can be x, and we don't know the person's total cost, which can be y

x = number of videos rented

y = total cost

so there's always a $20 that's added on as a membership fee, which means that theres going to be a + 20 somewhere.

So, the equation is 2.5x + 20 = y

Answer:

15, and this will help https://quizlet.com/333248903/mrkellymathscience-6th-grade-math-11-13-adding-subtra     cting-and-multiplying-decimals-flash-cards/

Step-by-step explanation:

take out space

Answer:

850 bagels in 10 hours.

Step-by-step explanation:

340 divided by 4 is 85. 85 times 10 is 850. So, 850 bagels.

Answer:

Step-by-step explanation:

Remark

It's not 82.

You have to take the 62% off and then follow it with 20% from the new price.

Solution

62%

If you get a reduction of 62%, it means that you pay 100% - 62% = 38% of the marked price of $49.95.

38% price =49.95 * 62/100

38% price = 3096.9 / 100

38% price = $30.97

20%  Reduction

20% more means that you pay 100% - 20% = 80%

20% more reduction = 30.97 * 80/100

20% more reduction = 2478/100

20% more reduction = 24.78

Conclusion.

Your final price before taxes is $24.78

Answer:

y = 1/4x -4

Step-by-step explanation:

Since you know that that slope int. equation is y = mx+b, and the m is the slope just plug in the slope in the equation. So it will be y = 1/4x + b.

Then what you will do is solve for b in the equation. So what you do is plug in the x and y value from the coordinate given in the equation, so it will be like this:  -6 = 1/4(-8) +b

                -6 = -2 +b

                -4 = b

                  b = -4

So then you plug back the b value into the equation with slope to wtite the equation. So it would be, y = 1/4x -4

Answer:

D. Both B and W are dependent variables.​

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

took the test before an got the answer right

Answer:

No, the triangles are not similar.

Step-by-step explanation:

For ΔNOP, since all triangles' angles equal 180°, to find the missing angle you subtract the given angles from 180

180-70=110, 110-58=52       ∠N = 52°

since ΔQRS does not have any angle measures of 58° or 52°, the triangles are not similar becasue similar triangles have congruent angles.

Answer:

Muito se fala sobre os benefícios que o leite materno oferece para o bebê – aumento da imunidade, redução do risco infecções e menos tendência a ser obeso são apenas alguns deles. E não é só o pequeno que entra nessa lista de vantagens. Para se ter uma ideia, o ato de amamentar afasta a mãe de doenças como câncer nas mamas e nos ovários, diabetes, hipertensão, osteoporose e até Alzheimer. Mas como será que esse alimento milagroso é produzido? Quais partes do corpo estão envolvidas? Fomos atrás dessas respostas. Confira no infográfico a seguir:

Answer:

-2

Step-by-step explanation:

2, 1, 0, -1

If the pattern continues it will lead to the next number being  - 2

Answer:

The answer is

[tex]y = - \frac{1}{4} x[/tex]

Step-by-step explanation:

[tex]y = - \frac{1}{4} \times - 8 = 2 \\ y = - \frac{1}{4} \times - 4 = 1 \\ y = - \frac{1}{4} \times 0 = 0 \\ y = - \frac{1}{4} \times 4 = - 1[/tex]

Answer:

Step-by-step explanation:

[tex]m\angle T+m\angle P=180^o\\\\(12x-4)^o+(7x+13)^o=180^o\\\\12^o\cdot x-4^o+7^o\cdot x+13^o=180^o\\\\(12^o+7^o)\cdot x=180^o+4^o-13^o\\\\19^o\cdot x=171^o\\\\x=9[/tex]

[tex]MO=\dfrac{TR+AP}2\\\\\\16y+1=\dfrac{12y+1+18y+6}2\\\\(16y+1)\cdot2=30y+7\\\\32y+2-30y=7\\\\2y=7-2\\\\2y-5\\\\y=2.5[/tex]

Answer:

8 feet squared

Step-by-step explanation:

The area of bedroom 1 is 2 length and 3 width. multiply them and you get 6ft^2 plus the 2 squares on the right.

The area of Bedroom 1 is,

⇒ 32 feet²

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

Given that;

To find square feet of flooring are needed to cover the entire floor of Bedroom 1.

Here, We have;

1 in = 4 feet

Hence, Length of bedroom 1 = 8 feet

Width = 4 feet

Thus, The area of Bedroom 1 is,

⇒ 8 x 4 = 32 feet²

Hence, The area of Bedroom 1 is,

⇒ 32 feet²

Learn more about the rectangle visit:

https://brainly.com/question/2607596

#SPJ2

Answer:

D 2.10+0.80m=11.70, 12 miles

Step-by-step explanation:

11.70-2.10=9.6

9.6/0.80=12

so there is 12 miles and only d has 12 miles

hope this helps have a blessed day

Answer:

108 inches square.

Step-by-step explanation:

Here

base= b= 4 inches

height = h=w=  3.5 inches

and length = l= 9  inches

The surface area is the total area of all the sides of the prism. So the area of the 2 triangles is given by

Area of the 2 Δs= b* h= 4*3.5=  13.5 inches square

Area of the 3 rectangles = l*w(3)= 3( 9*3.5)= 94.5  inches square.

Total area = 13.5 + 94.5 = 108 inches square

This can be found by applying another formula.

Surface area of the triangular prism = bh + ( s1+s2+s3) H

                                                         = 4*3.5 + (9+9+9)3.5

                                                          = 13.5 + 94.5= 108 inches square.

where H is the width of the recatngles which is equal to the height of the triangles.

Answer:

B. 65

Step-by-step explanation:

600 * 4/5 = 480 seats used by students

55 teachers + 480 students= 535 seats used

600-535 = 65 seats left over

Answer:

Step-by-step explanation:

First use distributive property: a(b + c) = a*b + a*c

3n - 6 = -8(6 + 5n)

3n - 6 = 6 * (-8) + 5n *(-8)

3n - 6 = -48 - 40n

Now add 40n to both sides

3n - 6 + 40n = -48 - 40n + 40n

43n - 6 = -48

Now add 6 to both sides

43n - 6 + 6 = -48 + 6

           43n = -42

               n = -42 /43

Answer:

0.98

Step-by-step explanation:

3n-6=-8(6+5n)

3n-6=-48-40n

3n=-48-40n+6

40n+3n=-42

43n=-42

n=0.98 (I rounded it)

Answer:

12 ¼

Step-by-step explanation:

if you add the 16ths its up to 4 16ths, simplified that is ¼. then you add the 3s, 3 × 4 is 12. add the two, 12 ¼

Answer:

0

Step-by-step explanation:

first you need to know what is 2/9 as a decimal. to find that you need to do 2 ÷9 which equals to 0.2222222222222 . then you round this to a whole number which is 0.

hope this helps . please give me a brainliest.

Answer:

x-intercept

Step-by-step explanation:

Answer:

lungitud es 5718374+383739=2588262836372937382682

Answer:

-40 ÷ 5 = x

x = -8

Step-by-step explanation:

Answer:

-40 / 5 = -8

Hope this helps.