Answer:
13 (c)
Step-by-step explanation:
Graph the equation 7000(1-0.19)^x and then the inequality y<500, the point of intersection should be 12.524, so the answer will be rounded up to 13 i think
Answer: 150.768
Step-by-step explanation:
The volume of the cube is 6×6×6=216 cubic inches. We have that the gold weight 0.698 pounds per cubic inch, so, to find the total weight of the cube of gold we should do 216×0.698 = 150.768. Therefore the weight of the cube is 150.768
-- 34,769 rounded to 2 significant figures is 35,000.
-- 6.7493 rounded to 2 sigfigs is 6.7 .
The two pieces are continuous for every
So, our only concern is to make sure that the pieces "glue" continuously at x=7.
To ensure this, we evaluate both pieces at x=7, and impose that the two values are equal.
The first piece evaluates to
The second piece evaluates to
So, we want
We move all terms involving c to the left hand side, and all the numerical constants on the right hand side: