2 years ago

Plzzz i need an actual answer plz

Mathematics

1 answer:

natta225 [31]2 years ago

5 0

Answer:

185.60944

Step-by-step explanation:

Using the formulas

A=πrl+πr2

l=r2+h2

Solving forA

A=πr(r+h2+r2)=π·4·(4+102+42)≈185.60944

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Let A={Φ,{Φ},{Φ,{Φ}}} and B={1,2}. How many relations from A into B?

ahrayia [7]

Answer: There are 64 relations from A to B.

Step-by-step explanation:

Number of relation from set A to B = $2^{\text{ (Number of eklemnts in A x B)}}$

$=2^{\text{(Number of elements in set A ) x (Number of elements in set B)}}$

Since, A={Φ,{Φ},{Φ,{Φ}}} and B={1,2}

i.e. Number of elements in set A = 3

Number of elements in set B = 2

So, Number of relation from set A to B = $2^{3\times 2}$

$= 2^6= 64$

Hence, there are 64 relations from A to B.

5 0

2 years ago

Solve for x<br> -1/5(×-4)=-2<br><br> Enter your answer in the box.<br> ×=

Arisa [49]

Answer:

x = 14

Step-by-step explanation:

-1/5(x - 4) = -2

-1/5x + 4/5 = -2

-1/5x = -2 - 4/5

-1/5x = -10/5 - 4/5

-1/5x = - 14/5

x = -14/5 * - 5

x = 70/5

x = 14 <====

3 0

2 years ago

what is the height of a rectangular prism that has a volume of 280 cubic meters , a length of 8 meters, and width of 7 meters?

murzikaleks [220]

Volume = L x W x H

V = 280

L = 8 m

W = 7 m

8 x 7 = 56

280 / 56 = 5

7 x 8 x 5 = 280

Height = 5

8 0

2 years ago

What is the slip of the line shown in the graph A) -2 B) -1 C) 1/-2 or D) 1/2

Serjik [45]

Answer:

m = -1/2

Step-by-step explanation:

$m=\frac{rise}{run}=\frac{1-2}{0+2}=\frac{-1}{2}=\boxed{-\frac{1}{2}}$

Hope this helps.

6 0

2 years ago

What is the answer guys?

Nana76 [90]

B=2
idk what else to say but I have to add words so hi
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3 0

2 years ago

Read 2 more answers