Answer: Mass is how much stuff something is made of. Volume is how much space an object takes up.
Answer:
12a. 471.2 cm²
12b. 60 m²
Step-by-step explanation:
Part A.
The surface area of each figure is the sum of the end area and the lateral area.
<u>cylinder</u>
S = (2)(πr²) +2πrh = 2πr(r +h)
S = 2π(5 cm)(5 cm +10 cm) =150π cm² ≈ 471.2 cm²
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<u>triangular prism</u>
S = (2)(1/2)bh + PL . . . . b=triangle base; h=triangle height; P=triangle perimeter; L=length of prism
S = (4 m)(1.5 m) + ((4 + 2·2.5) m)(6 m) = (6 + 54) m² = 60 m²
_____
Part B.
Surface area is useful in the real world wherever products are made from sheets of material or wherever coverings are applied.
Carpeting or other flooring, paint, wallpaper are all priced in terms of the area they cover, for example.
The amount of material used to make containers in the shapes shown will depend on the area of these containers (and any material required for seams).
Answer:
(y2-y1/x2-x1) is the equation, plug in the points
6-8/-4-5
-2/-9
2/9 is the slope
Step-by-step explanation:
Answer:
y
=
−
x
+
4
Step-by-step explanation:
Use the slope formula and slope-intercept form y
=
m
x
+
b to find the equation.
Y = 162 - x would be the equation for the lower data set.
