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vlada-n [284]
2 years ago
8

The radius R of a sphere is 9.8 cm. Calculate the sphere's surface area A.

Mathematics
1 answer:
Maurinko [17]2 years ago
7 0

Answer:

30.772 kdmplkajdmk jal,fkgfgdffghkmfdghkmdjghmkdj

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If A represents the set of all even integers and B represents the set of all odd integers, what is A∩B
Virty [35]

Answer:

A∩B=∅

Step-by-step explanation:

A intersect B have no elements in common - so we have the empty set.

7 0
3 years ago
PLS HELP! WILL GIVE BRAINLIEST
Leviafan [203]

Answer:

  • The center (2, 2.5), radius \sqrt{37} / 2

Step-by-step explanation:

<u>The standard form of the equation of a circle is: </u>

  • ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius

<u>Rewrite the given equation in the standard form:</u>

  • 2x^2 + 2y^2 - 8x + 10y + 2 = 0
  • x^2 - 4x + y^2 + 5y = -1
  • x^2 - 4x + 2^2 + y^2 + 5y + (5/2)^2 = -1 + 4 + 25/4
  • (x - 2)^2 + (y + 2.5)^2 = 37/4

<u>The center is:</u>

  • (2, 2.5)

<u>And radius is:</u>

  • <u />\sqrt{37} / 2

4 0
2 years ago
I don't understand number 6 please help
ycow [4]
X^-n = 1/x^n 
Your fraction becomes:
1/ {(m^5 t^2)(27m^6t^3)} now combine the powers in the denominator
1/ (27 m^11 t^5)
7 0
3 years ago
Read 2 more answers
daniiel is currently 26 years older than his son. in 6 years he will be three times older than his son. how old are both of them
Molodets [167]

Answer:

Daniiel is 33 years old.

The son is 7 years old.

Step-by-step explanation:

x+26=3x

The x represents the son.

To solve for x:

-26=x-3x

-26=-2x

x=13

Since the father will be 3 times his son's age in six years we subtract 6.

x=7

This means the son is 7 years old as of right now. To find the father's age you do 7+26=33

7 0
2 years ago
Can someone please help
Dmitrij [34]

Answer:

1) a. 15ft

b. 6ft

c. 30ft

2) a. 16m

b. 12m

c. 192m

8 0
2 years ago
Read 2 more answers
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