Answer: A
Step-by-step explanation:
Answer: 10 m^2.
Explanation:
A = 1/2 (a)(b)
A = 1/2 (4m)(5m)
A = 1/2 (20m^2) = 10 m2.
Answer:
200% increase
Step-by-step explanation:
A cylinder is a three-dimensional shape with a circle shape as its base. The volume of the cylinder will be the product of its base area and its height. The formula to calculate the volume of a cylinder will be:
V=πr^2h
Cylinder A have radius of 8 inches (r= 8 inch) and a height of 3 inches(h= 3 inch). Then the volume will be:
Va=πr^2h
Va=π* 8^2*3
Va=192π cubic inch
The percentage of change in volume will be
cylinder A volume / cylinder B volume
Va/Vb= 192π/96π * 100%= 200%
The volume is increased to 200%
Answer: the taxi ride will cost $12.25
Step-by-step explanation:
Jacob and his family take a taxi to the airport. The taxi charges $1.75 for each mile. This means that if Jacob travels for x miles, the charge, y in dollars will be x miles times 1.75 which is the charge per mile. It becomes
y = 1.75x
If the distance to the airport is 7 miles, it means that x = 7 and we will substitute it into the equation,
y = 1.75x. It becomes
y = 1.75 × 7 = $12.25