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riadik2000 [5.3K]
4 years ago
7

CHECK MY ANSWER PLEASE (I chose C)

Mathematics
1 answer:
baherus [9]4 years ago
8 0
Congratulations you got it correct the answer is c

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Find the sum of the geometric sequence –3, 15, –75, 375, … when there are 8 terms
arlik [135]
First, we need to solve for the common ratio from the data given by using the equation.

a(n) = a(1) r^(n-1)
15 = -3 r^(2-1)
-5 = r
r = -5

Then, we can find the sum by the expression:

S(n) = a(1) ( 1 - r^n) / 1-r
S(8) = -3 (1 + 5^8) / 1+5
S(8) = -195313
3 0
3 years ago
When using a debit card: Question options: A:There are always fees. b:Identification is always required. c:You still need to rec
DIA [1.3K]

Answer:

D.

Step-by-step explanation:

Since this isn't a credit card, there are no interests or fees on a debit card, so A is incorrect. B is also incorrect. You only need identification when you are withdrawing or depositing at a bank, but purchases made in stores or online do not need your identification. You also don't need to record transactions in your checkbook (but it is recommend to keep track of purchases). Modern day technology already records transaction history and all you need to do is access it online.

D is correct because if someone steals your PIN for your debit card, they could go to stores and use that money. You can dispute charges and report to the bank if that happens.

3 0
3 years ago
5) Jim is hoping that a park will be built
Sedaia [141]

Answer:

Step-by-step explanation:

7 0
3 years ago
What is the value of q in the equation 5q-10=75
Alex

Answer:

q=17

Step-by-step explanation:

5q-10=75

add 10 to both sides to cancel out -10 on the left side

5q-10+10=75+10

5q=85

divide both sides by 5 to get rid of the 5 in 5q

5q/5=85/5

resulting in:

q=17

5 0
3 years ago
In a lab, a substance was heated by 6 °C each hour for 60 hours. What was the total change
Serggg [28]
The temp increased by 360 degrees since 6x60 is 360
5 0
3 years ago
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