Answer:
sales tax is $2
total price is $32
Step-by-step explanation:
the answer for the sales tax is actually point $2.10 becasue if you multiply 30 to 7% but since they ask you to round it to the nearest cent it would be 2 so that would be your sales tax and then for the total you just add $30 to $2 and your total is $32
When you plot the given points on a coordinate plane, you can see this is an ellipse that is vertical. The equation for this is
. Of the values a and b, a is always greater than b, so it is on our major axis, the y-axis (it's under the y-k). a is the distance from the center to the vertices. When you plotted those given points, you can see that point dead center between the foci and the vertices is the origin (0, 0). That gives us our h and k values of 0 and 0. a is the number of units from the h coordinate of 0 to the y coordinate of the vertex, so a = 12. c is the number of units from the center to the foci, so c = 11. We need to find b now using the formula for the foci which is
. We have c and a, so
and
. Now we have all the info we need to rewrite the equation:
or, simplified,
Answer:
I also need help with this
Step-by-step explanation:
Answer:
x=0,5,2,-3
Step-by-step explanation:
Answer:
45.3 miles/h
Step-by-step explanation:
hope i helped:)