Answer:
Step-by-step explanation:
<u>___2x____l__y_____</u>
l 0 l 0 l
<u>l l l</u>
l 1 l 2 l
l<u> l l</u>
l 2 l 4 l
l<u> l</u>
Remember that a negatve + a negative = a posative.
so -16 + -23=
16 + 23 =39
Answer:
12 km
Step-by-step explanation:
0.10 km = 1 minute
X = 120 minutes
(0.10)*(120) = 12
Answer:
Step-by-step explanation:
<u><em>The complete question is</em></u>
How do you calculate the mass of a solid copper cuboid with a density of 9.86 g/cm^3. The dimensions of the cuboid are 10 cm by 3 cm by 5 cm
step 1
Find the volume of the cuboid
step 2
Find the mass
we know that
To find out the mass multiply the density of the solid by its volume
so
Answer: 65π
Step-by-step explanation:
you can draw the cone to make it easier for you to understand.
to find the curved surface area of a cone, you multiply the base radius of the cone by pie. Then multiply your answer by the length of the side of the cone.
to do this you need the length of the side and the radius of the cone.
to find radius, divide the diameter by 2.
= 5
then use the right angle triangle in the cone to find the length of the side
use Pythagoras theorem which states that a² + b²= c²
a= 5, b= 12, c= x (length of side)
∴
no that you have found the length
multiply the base radius by pie
which is:
5 ×π = 5π
then multiply this by the length of the side
5π × 13 = 65π
there you go!
hope it helps!