Answer:
A ≈ 1900.7 m²
Step-by-step explanation:
The area (A) of the race track is
area of outer circle - area of inner circle
= πR² - πr²
= π × 63² - π × 58²
= π (63² - 58² )
= π(3969 - 3364)
= π × 605
≈ 1900.7 m² ( to 1 dec. place )
Answer:
-43
Step-b-y-step explanation:
f(x)= -x^2+7x-13 so
f(-3)= - (-3)^2 + 7(-3) - 13
= -9 - 21 - 13
= -43.
Answer: K eeeeeeeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
Answer:
In 50 years the amount will be $ 2000.
Step-by-step explanation:
Tiana deposited $500 into a account at 6 % simple interest per Year .
7 1/20 = (7×20)+1 = 140+1 = 141/20.
It will be 7.??
1/20 = 20 into 1.000: 20 goes into 100 5 times, so that's. 0.050
Now tack onto 7 = 7.050
