Answer:
The discount is $18
Step-by-step explanation:
5x+61.50=78 and then subtract and get 5x=16.5 divide by 5 and get 3
Answer:
The diameter is 9.252 :)
Step-by-step explanation:
From the given diameter, get the radius. The perimeter of a semicircle is half the perimeter of a circle, but we excluded the base. So, the perimeter now is:
2πr+2r
Put the value of radius in the formula and get the answer wich is 9.252!
PLEASE MARK BRAINLIEST!!!
23
Step-by-step explanation:
angle DEF = 74 degrees.
well I would use sins but it's quite simple
Length of DE is 23, just like AB
Answer:
45
Step-by-step explanation:
We are using sigma notation to solve for a sum of arithmetic sequences:
The 5 stands for stop at i = 5 (inclusive)
The i = 1 stands for start at i = 1
The 3i stands for expression of each term in the sum