Answer:
k - 11
Step-by-step explanation:
Firstly, we have to distribute: -8k + 4 + 9k - 15
Collect like terms: 1k - 11 OR k - 11
Answer:

Step-by-step explanation:
Recall the vertex form of a quadratic equation:

Where (h,k) is the vertex.
We are told that the vertex is (0,0). Therefore:

Simplify:
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So, to finish the equation, we need to find a.
We know that a point is (2,1). Thus, substitute 1 for f(x) and 2 for x:

Square:

Divide both sides by 4:

So, our a value is 1/4.
And we can thus complete our equation:
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And we are done :)
Answer:
1.600
dont forget to press the crown:)
Step-by-step explanation:
We have the equation:
8 ÷ 5 = 1.600
Calculated to 3 decimal places.
1. 6 0 0
5 8. 0 0 0
− 5
3 0
− 3 0
0 0
− 0
0 0
− 0
0
If you divide them you get 0.1
Not sure what you mean by drag and drop but Im going to attempt this.
-3/5 = -12/20
1/5 = 4/20
That makes no sense. It should be -8/20 < 7/20?