Answer:
12
Step-by-step explanation:
4 / sqrt {9}
4(3)
4 x 3
12
Answer:

Step-by-step explanation:
Given Data,
Q=23000 J
c=4.184 J/g °c
Δt= 68 °c
m=?
By using this equation,
Q=mcΔt


The given equation is a Quadratic equation, so it's graph must be a parabola, and the Coefficient of x² is positive that means the parabola must have an opening upward.
And 2 is added to the ideal equation, so the parabola must have shift 2 units up from x - axis.
From the above information, we can easily conclude that the Correct representation is done in graph 4
١١٢٢٩٩٢٨٢٨٢٨٢٨٨٢٨٨١٨ $-&-$-$-$$$$ -($-$/ شنشنستستسرستس
I’m pretty sure the answer is C