(18.6 + 9.4) x 1/2^2= 7 hope it helps!
Answer:
2x+3+5x+6 = 7x+9
Step-by-step explanation:
2x + 3 + 5x + 6
= 2x + 5x + 3 + 6
= 7x + 9
Hope it helps
I think is is B!
Not sure tho
Hope this helps
Sorry if wrong!
Answer:
Step-by-step explanation:
To answer this we need only know that negative parabolas are upside down, so by definition, it has a max point at the vertex. To find the vertex (h, k), the easy way to do this is to fill in the following expressions for h and k and solve:
and (These are derived from the quadratic formula). Filling in knowing our a = -1, b = -7, c = 12:
and
so the vertex (aka max height occurs at . Depending upon what is meant by stating the max value, we may only need to state the k value (which is the same as the y coordinate, which is an up or down thing as opposed to the x value which is a side to side thing). The domain is all real numbers, as is the case for all x-squared parabolas, and the range is
R = {y | y ≤ 97/4}
I can't see your choices so match them up from these answers to the ones in the list of choices.
Assuming it’s a equilateral triangle the answer is 8sqrt(3)
Height 12cm
Cut the triangle in half so it becomes a 30-60-90 triangle
So 12/sqrt(3)=x and the side you want is 2x so it is 24/sqrt(3) for each side but you need to make sure you simplify it to (24sqrt(3))/3 and then one more time to 8sqrt(3)