Answer:
A) 96
Step-by-step explanation:
The 2 base angles are both 42* thus adding up to 84*. 180-84=96
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Answer:
Final answer is c. 15
Step-by-step explanation:
We need to find about what is the first term in the sequence for which d = -2 and a7 = 3
We will use nth term formula of arithmetic sequence.
![a_n=a+\left(n-1\right)d](https://tex.z-dn.net/?f=a_n%3Da%2B%5Cleft%28n-1%5Cright%29d)
we have been given a7 that means 7th term is 3
so plug n=7, d=-2 and a_n=3 into above formula
![3=a+\left(7-1\right)(-2)](https://tex.z-dn.net/?f=3%3Da%2B%5Cleft%287-1%5Cright%29%28-2%29)
![3=a+6(-2)](https://tex.z-dn.net/?f=3%3Da%2B6%28-2%29)
![3=a-12](https://tex.z-dn.net/?f=3%3Da-12)
![15=a](https://tex.z-dn.net/?f=15%3Da)
Hence final answer is c. 15
Answer:
The answer is the second answer choice
Step-by-step explanation:
Answer:
1/337500
(Decimal: 0.000003)
Step-by-step explanation:
Answer:
The original price of an item less a discount of 20% is 0.8p where p is the original price
Step-by-step explanation:
Here, we want to write an algebraic expression that represents the original price of an item less a discount of 20%
Let the original price of the item be p
The meaning of the ‘less’ is that we are subtracting 20% of the price from the original price ;
So 20% of the price will be 20/100 * p = 20p/100 = p/5 = 0.2p
So let’s take this away from the original price p
That will be;
p - 0.2p = p(1-0.2) = 0.8p