Answer:
Volume of the sphere up to two decimal places= 
cubic yards
Surface area of the sphere up to two decimal places 
square yards
Step-by-step explanation:
Given:
The radius of the sphere= 1 yard
Volume of a Sphere:
:
cubic yards
Volume of the sphere up to two decimal places= cubic yards
Surface area of the sphere= 
Surface area of the sphere up to two decimal places square yards
Answer:
(g-f)(3) = 20
Step-by-step explanation:
g(3)=6 * (3) = 18
f(3)= 4-2(3) = 4 - 6 = -2
So
(g-f)(3) = 18 - (-2) = 20
Answer:
Greg worked more than 20 hours.
Step-by-step explanation:
Let's solve the inequality for 
so we know how many hours Greg worked:
Step 1. Subtract 25 from both sides of the inequality
Step 2. Divide both sides by 14
We can conclude that Greg worked more than 20 hours.
10) 1 gallon of water for every inch of the fish's body length.
a) 2 1/2 inches long fish needs 2 1/2 gallon of water.
b) tank: l = 7 inches ; w = 5 inches; h = 7 ; volume = 7in * 5in * 7in = 245 in³
c) no. her fish tank is not large enough for the fish.
volume of 1 gallon of water is 231 in³, water needed is 2 1/2 gallon, so 5/2 * 231 in³ = 577.50 in³ volume.
11) volume = 7in * 3.5in * 1.75 in = 42.875 in³
weight of the brick = 0.1 pound per cubic inch ⇒ 42.875 in³ * 0.1 lb = 4.2875 pounds
weight of the gold bar = 0.7 pound per cubic inch ⇒ 42.875 in³ * 0.7 lb = 30.0125 pounds
12) l = 55cm ; w = 40cm ; h = 30 cm
volume = 55cm * 40cm * 30cm = 66,000 cm³
