Answer:
IT'S 12
Step-by-step explanation: WE HAVE A PROJECT IN MATH CLASS AND I DID THE WORK AND GOT 12
Sum of geometric sequence
for the sum where the initial value is a₁ and the common ratio is r and the term is n

common ratio is -3
-5 times -3 is 15, -15 times -3=-45 etc
first term is -5
and we want the 8th term





the sum is 8200
Answer: a= 1.21
Step-by-step explanation:
Note: This is a compound interest problem
Step 1
The value of the antique after one year is:
100% + 10% of the purchase price
= 110% of 200
=110/100 of 200
=1.10 × 200
Step 2
The value after two years is:
110% of the value after one year
=110% of (1.10 × 200)
=110/100 of (1.10× 200)
=1.10×(1.10×200)
=1.21×200
Step 3
Expressing the above solutionin the form 200a:
= 200× a = 200 × 1.21
|a=1.21
Thanks
Answer: C. 70 percent
Step-by-step explanation:
Given, Time for the first unit = 50 minutes
Time for the second unit = 35 minutes
The unit improvement factor learning curve = (The time for the second unit) ÷ (time for the first unit) x 100.
So, The unit improvement factor learning curve = 35÷ 50 × 100 = 70 percent.
Hence, the correct option is "C. 70 percent".
Answer:
The total length of the trip was 400 miles.
Step-by-step explanation:
He fell asleep at 44% through the trip, they already had traveled 176 miles.
.44x = 176 ⇒
176 ÷ .44 ⇒
x = 400