Answer:
Sₙ = 57/2 * (504 + 896) = 39900
Step-by-step explanation:
first multiple of 7 after 500 is: 72 *7 = 504
last multiple of 7 before 900 is: 128 *7 = 896
a₁ = 504
aₙ = 896
where n = 128-72 +1 = 57
sum of arithmetic sequence: Sₙ = n/2 * (a₁ + aₙ)
Sₙ = 57/2 * (504 + 896) = 39900
Answer:
Step-by-step explanation:
You can multiply the numerator and denominator by 2
(4.5/5.5)(2/2)=9/11
Answer: 86,400 feet
Step-by-step explanation: First convert from feet per second to feet per hours by multiplying by 60 twice. 6 f/s = 360 f/min = 21600 f/hour
Next multiply 21600 by 4 = 86400
The answer is 0.23. Ned an explanation
Answer:
all right angels are congruent
Step-by-step explanation:
