Answer:
a bc I think it's right idk really
Step-by-step explanation:
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X²+3x-21=0
1) we solve this square equation:
x=[-3⁺₋√(9+84)] / 2=(-3⁺₋√93)/2
We have two solutions:
x₁=(-3-√93)/2
x₂=(-3+√93)/2
2) we compute the product of the 2 solutions found.
[(-3-√93)/2][(-3+√93)/2] =(-3-√93)(-3+√93) / 4=
=(9-93)/4=-84/4=-21
Answer: the product of the 2 solutions of this equation is -21
The mean of the following dot plot:
Mean: 3
Step-by-step explanation:
0 x 1 = 0
3 x 1 = 3
6 x 1 = 6
(we only add the numbers that only has a dot on the number in the dot plot)
So:
Mean: 0 + 3 + 6 = 9/3 = 3
Read more on Brainly.com - brainly.com/question/16754217#readmore
this was my previous answer from your other question
Answer:
The selling price would be 
.
Step-by-step explanation:
We have been given that a sports drink has a cost of $1.25.
We need to figure out the selling price of the sports drink so that the store is able to generate a profit of $0.50 per drink.
We know that profit is found by subtracting the cost of an item from selling price of the item. Therefore, selling price of the item can be found by adding the profit to the cost.
Therefore, the required selling price of the sports drink would be:
