I need help plz this is hard

Answer:

Surface area = 2πrh + 2πr^2

= (2 × 22/7 × 5 ×5 + 2×22/7×25)cm^2

= (1100/7+1100/7)cm^2

= 2200/7 = 314.28571) cm^2 (ans)

Hope it helps

Answer:

100 pi

Step-by-step explanation:

   Answer:

The total weight = 1286 × 62.4 = 80246 pounds.

Step-by-step explanation:

The formula of the volume of the sphere is

V = 4/3×π×r³

Given

d = 17 feet

d = 2r

r = d/2 = 17/2 = 8.5 feet

V = 4/3×π×r³

Since we need half of the volume as it is a hemispherical tank.

= 1286 ft³

Given that the weighs 62.4 pounds per cubic foot

Thus,  the total weight = 1286 × 62.4 = 80246 pounds.            

Answer:

64-16pi(not rounded)

64-50.27 = 13.73 (rounded)

Step-by-step explanation:

Square = side^2 - side =8 (4+4)

8*8 = 64

Circle area= pi r^2

16 pi = 50.27

Square-pi*r^2 = answer

64-16pi(not rounded)

64-50.27 = 13.73 (rounded)

Answer:

75,625

Step-by-step explanation:

Answer:

[tex]Points ~that ~lies~on ~the~sides~of ~the~triangle.[/tex]

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hope it helps...

have a great day!!

Answer:

Options A and D will be your answers

Step-by-step explanation:

hope it helps you...

Answer:

SA= 113.3

Step-by-step explanation:

You would add all sides given to you to find the surface area.

Answer:

x = - 10

Step-by-step explanation:

Given

- [tex]\frac{4}{5}[/tex] x = 8 ( multiply both sides by 5 to clear the fraction )

- 4x = 40 ( divide both sides by - 4 )

x = - 10

Answer:

x= -1/10

Hope this helps

Answer:

jb/job/Lin/l’kn;job;like

Step-by-step explanation:

no;job’;lojhn’kihn’;pain’-;

Answer:

I don't see how to answer this. What graph?

Step-by-step explanation:

Answer:

The dog has 1357.5 square feet of running space.

Step-by-step explanation:

48 feet is the diameter of the circle in which the dog can run, minus 1/4 of the total circle (assuming the dog can not run through walls).

The formula of how to find the area of a circle is...

A =  π r²

A stands for area, pi(π) is 3.14, and r means radius.

Radius is half of the diameter, so the radius would be 24 feet. Let's plug those numbers into the formula:

A = π x 24²

A = π x 576

A = 1809.56 square feet

Now, we have to subtract 1/4 of 1810 (rounded up).

1810 times 0.75 = 1357.5 feet.

I hope this helps you! :-)

Answer:

249.9

Step-by-step explanation:

Area of the shaded region is 223.72 square units.

Step-by-step explanation:

Area of the shaded region = Area of parallelogram - Area of triangle

Area of the parallelogram = base x height

= 23.8 x 15

= 357 square feet

Area of triangle = \frac{1}{2}

2

1

x base x height

Let the height of the triangle be represented by h, applying the Pythagoras theorem;

23.8^{2}23.8

2

= 21^{2}21

2

+ h^{2}h

2

566.44 = 441 + h^{2}h2

h^{2}h

2= 125.44

h = \sqrt{125.44}

125.44

= 11.2

h = 11.2

Area of the triangle = \frac{1}{2}

21 x 23.8 x 11.2 = 133.28

Area of shaded region = 357 - 133.28

= 223.72

Area of the shaded region is 223.72 square units.

Answer:

w=(-5t)+20,000

Step-by-step explanation:

Answer:

D. 6

Step-by-step explanation:

Because a hexagon has 6 sides and when fully turned, it spin 360 degrees which is a whole circle!

Answer:

6

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

80 divided by 2 is 40 and the formula is L times W times Height and the height is 2 so the base is 40 B times H

It's 40

Answer:

just use the photo math app it scans your math problem and it solves it for you and it gives you step by step and explanation

Step-by-step explanation:

go to the Play store then you download the app or wherever you get your apps and then I can't remember from there you might have to create account but it's super easy all you have to do is take a picture and it'll scan it but make sure it's clear it's really easy and it's free photo math is the best

Answer:

- 3

Step-by-step explanation:

ap ex

Answer:

B. y > 14

y which is students age is greater than 14

Answer:

Arc= 1/4 of a cricle

Step-by-step explanation:

Answer:

2 no.reflection

6 no diliation

8 no reflection

7 no rotation

5 no rotation

3 no rotation

4 no translation

9 no translation

Step-by-step explanation:

C because the most shown value is 24

Answer:

The answer is "Option C".

Step-by-step explanation:

The graph of the even function will have both ends pointed in the same direction, while the graph of the odd function will have both ends pointed inside the reverse way. Furthermore, as the y-axis approaches, and also regular expression graph becomes symmetric. The graph of an unusual function, on either hand, is symmetric around the origin and also has rotational symmetry around the origin. They could see that the graph of function g meets a function requirement by looking at it. That graph of function f, but on the other hand, is not symmetric about its y-axis, implying that function f is not even. As both a result, g is a function that is even.

Answer:

Only function g is given

Step-by-step explanation:

Answer:

2

:) hope it helped!

Answer: 27.2

Step-by-step explanation: add up the values then divide by the amount of values (6)

Answer:

37.7

Step-by-step explanation:

Circumference=

[tex]2\pi \times r[/tex]

Answer:

-28c+144

Step-by-step explanation:

if you simplify -16(c-4)-12c+80

it equals -28c+144

Explanations:

Distribute

-16(c-4)-12c + 80 ---> -16c + 64 - 12c +80

Add the numbers

-16c+64-12c+80 ---> -16c+144-12c

Combine like terms

-16c+144-12c

-28c+144

Answer:

d.) x/y

Step-by-step explanation:

quotient means to divide and d shows x & y getting divided

Step-by-step explanation:

Radius=EA,AB,DA,CA

diameter=EB

length of diameter =2×4=8cm