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Sedbober [7]
2 years ago
12

The sum of the first 21 terms of the progression, - 18, - 15,-12.....is?​

Mathematics
1 answer:
katovenus [111]2 years ago
8 0
You can just use the tn formula to solve this tn= t1 + (n-1)d
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Help ...............
sammy [17]
A straight line is 180° so....

9x+24 +6x - 24 = 180

15x=180. ( because you have to combine like terms.

X= 12
5 0
3 years ago
What is the value of 2 + b(a? + 4) when a = 2 and b = 4?<br> A 22<br> B 34<br> C 2<br> D 48
lisov135 [29]

Answer: 26

Step-by-step explanation:

lets replace a and b with the numbers provided

2+4(2+4)=2+4(6)=2+24=26

4 0
3 years ago
There are 18 bicycles. There are more more blue than yellow. There are 2 less yellow than green. How many of each color are ther
nasty-shy [4]
The are 8 blue bicycles, 6 green bicycles, and 4 yellow bicycles and total they equal 18.
5 0
3 years ago
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alekssr [168]

Answer:gchvbunonion

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
a craftsman drill is on sale for $99.99. If the sales tax rate is 7%, how much will molly have to pay for the drill?
Nadya [2.5K]
99.99 x (7%/100)= 6.9993
99.99+6.9993= 106.9893 (round up)
ANWSER- $106.99
Hope this helped.
8 0
3 years ago
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