I think it would be the first one and the last one
Answer:
452.45mmm^2
Step-by-step explanation:
Step one:
Given data
outer radius R= 20mm
inner radius r= 16mm
let us find the area of the outer circle
Area= πR^2
Area= 3.142*20^2
Area= 3.142*400
Area= 1256.8 mm^2
let us find the area of the inner circle
Area= πr^2
Area= 3.142*16^2
Area= 3.142*256
Area= 804.35 mm^2
Hence the area of the section is
Area of outer- Area of inner
=1256.8-804.35
=452.45mmm^2
Answer:
(2x^2+3)^2
Step-by-step explanation:
See image below:)
Answer:
No; equation
Step-by-step explanation:
2x+5 = 10 is not an expression rather it's an equation because it has an equal sign. An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An equation is made up of two expressions connected by an equal sign.
Answer:
Hailey's distance from home
Step-by-step explanation:
as time passes, the y value get ssmaller and smaller. ultimately becoming zero.
for the first option, if she is riding her bike away from school, her distance from school would not be getting smaller and smaller
the height of the tree would not be getting shorter and shorter
the number of students on a bus would be increasing on the way to school
however, as hailey approaches her house, her distance from the house would be getting smaller
