Answer:
x = √146 = 12.1 (nearest tenth)
Step-by-step explanation:
Apply pythagorean theorem, c² = a² + b², where,
c = x
a = √82 km
b = 8 km
Plug in the values
x² = (√82)² + 8²
x² = 82 + 64
x² = 146
x = √146 = 12.1 (nearest tenth)
1) The answer, in terms of "π", is:
_________________________________ "
(
) * π mm³ " .
___________________________________________________2) The answer, using "3.14" for "π", is:
___________________________________________________"
1436.0266666666666667 mm³ "
; round to: "
1436.027 mm³ " ;
or; write as: "
1436
mm³ " .
___________________________________________________Explanation: ____________________________________________The formula for the volume, "V" of a sphere is:
V =

* π* r³ ;
in which "r" = radius = "7 mm" {given}.
We can solve using "3.14" for "π" ; or we can solve in terms of "π" ;
_________________________________________1) In terms of "π" :
_________________________________________ V =

* π * r³ ;
=

* π * (7 mm)³ ;
=

* π * (7 * 7 * 7 * mm³) ;
=

* π * (49 * 7 * mm³) ;
=

* π * (343 mm³) ;
=

) * π mm³
=
(
) * π mm³ ;
________________________________________________________2) Using "3.14" for "π" :
________________________________________________________ V =

* π * r³ ;
=

* (3.14)* (7 mm)³ ;
=

* (3.14) * (7 * 7 * 7 * mm³) ;
=

* (3.14) * (49 * 7 * mm³) ;
=

* (3.14) * (49 * 7 * mm³) ;
=

* (3.14) * (343 mm³) ;
= {

} * (3.14 * 343 mm³) ;
= {

} * (1077.02 mm³) ;
= (4 * 1077.02 mm³) / 3 ;
= (4308.08 mm³) / 3 ;
__________________________________________________________ =
1436.0266666666666667 mm³ ; round to: "
1436.027 mm³ " ;
or; write as: "
1436
mm³ " .
__________________________________________________________
8192 ounces
<span>1 lbs is exact 16 oz</span>
The distance that Harold swim in 5 hours should be 16 km.
Given that,
- Harold swam 6 2 ÷ 5 km in 2 hours.
- And, the number of hours given is 5 hours.
Here we assume the distance be x
So,
=6.4
Now
2x=(6.4)(5)
2x=32
Now Divide by 2 on both sides
Thus,
X=16 km
Therefore, we can conclude that the distance that Harold swim in 5 hours should be 16 km.
Learn more about the distance here: brainly.com/question/12319416
Answer:
- plane: 530 mi/h
- wind: 40 mi/h
Step-by-step explanation:
Let p and w represent the speeds of the plane and the wind. The relation between time, speed, and distance is ...
speed = distance/time
p +w = (2565 mi)/(4.5 h) = 570 mi/h
p -w = (2205 mi)/(4.5 h) = 490 mi/h
Adding these speeds, we get ...
(p +w) +(p -w) = (570) +(490) mi/h
2p = 1060 mi/h
p = 530 mi/h
Then the speed of the wind is ...
w = 570 mi/h -p = (570 -530) mi/h = 40 mi/h
The plane's speed is 530 mi/h; the wind speed is 40 mi/h.