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ICE Princess25 [194]
3 years ago
11

What is the area of a sphear if if it's radius is 2

Mathematics
1 answer:
Hatshy [7]3 years ago
8 0

Answer:

50.2655

You see here, you find the diameter, which is 4, and multiply it. π

In conclusion, it is;

r = 2 m

V = 33.5103 m3

A = 50.2655 m2

C = 12.5664 m

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A train travels 56 kilometers in 4 hours, and then 90 kilometers in 2 hours. what is its average speed?
ankoles [38]
56 + 90 = 146 kilometers
4 + 2 = 6 hours

rate = 146 km / 6 hour
= 24.333 km / hour
6 0
3 years ago
The sum of Ted's and Leon's ages is
olganol [36]

Answer:

Ted is 6 years old

Leon is 7 years old

Andrew is 8 years old

Step-by-step explanation:

Ted+Leon=13 ⇒T+L=13 ⇒L=13-T

Leon+Andrew=15 ⇒L+A=15 ⇒A=15-L ⇒A=15-(13-T) because Leon =13-Ted

A=2+T

Ted+Andrew=14

T+A=14  ( substitute Andrew age from A=2+T)

T+2+T=14

2T=12

<h2>T=12/2=6 (Ted is 6 years old)</h2><h2>A=2+T=2+6=8 ( Andrew is 8 years old)</h2><h2>Leon=13-T=13-6=7 ( Leons is seven years old)</h2>

check: Ted+Leon=13 ⇒ 6+7=13

Leon + Andrew=15 ⇒7+8=15

Andrew+Ted=14 ⇒ 6+8=14

7 0
3 years ago
I need help please and thank you
myrzilka [38]

Answer:

3

Step-by-step explanation:

Slope = y2- y1/ x2- x1

= 4 - (-2) / 3 -1

= 4+2/ 2

=6/2 = 3

4 0
3 years ago
Question 5 of 15
Licemer1 [7]
<h3>Isolate y on both equations then equate </h3>

  • x²-3x+2y=-4
  • 2y=-x²+3x-4
  • y=-x²/2+3/2x-2

Now you can equate it with second one to get x

6 0
2 years ago
Read 2 more answers
How do you re-write 7-15 into a addition expression
Degger [83]

-15 + 7 is the addiction expression

7 0
3 years ago
Read 2 more answers
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