Answer:
3km/h and the speed of the ship is 21 km/h.
Step-by-step explanation:
Answer:
The area of the room and its uncertainty in square meters is:
15.642±0.040 
Step-by-step explanation:
We know the area of a rectangular room is the multiplication of the length and width:

Now we need to know the uncertainty, the uncertainty of a multiplication is:
(1)
: Area uncertainty
: Length uncertainty
: Width uncertainty
A: Area of the room
L: Length
W: Width
Clearing the uncertainty of the area:
(2)


The area of the room and its uncertainty in square meters is:
15.642±0.040 
Answer:
C. 88 in.
Step-by-step explanation:
This is because the equation for the circumference of a circle is pi times diameter. To get the diameter, multiply the radius by 2. Then do 28*3.14 to get the circumference of the circle then round your answer to get the nearest whole number which is 88 in.
There should only be one step necessary
(4m-1) / m = 4 - 1/m
Answer:
Perimeter of one of the triangle= 
Step-by-step explanation:
The triangle has:

Using the Pythagorean Theorem;


The Perimeter of one of the triangle is =

This is equal for the other triangle.