Answer:
Slope: -3/2
With the question, we can determine that the slope with two points: (0,13.5) and (9,0). To calculate use the equation 
and get 
This slope means that the water is decreasing at a rate of 3/2 gallons per minute.
Answer:
B
Step-by-step explanation:
The solution to a system of equations is where the two lines intersect at the exact same (x,y).
On the graph below, the point of intersection is between x values -6 & -7 and between y values -3 & -4. The best estimate would be half way between each of these values.
(-6.5, -3.5)
Answer:
Test scores
Step-by-step explanation:
In this example, there are two variables that are being analyzed: the review session that the professor is providing and the test scores of the students. The review session is the independent variable. This is because it is the variable that we can manipulate and that we have control over. On the other hand, the test scores is the variable that <em>depends</em> on whether the students received the review session or not. This makes it the dependent variable.
The surface area of a regular tetrahedron with edge length s is
... A = (√3)s²
For your edge length of 4 inches, the surface area is
... A = (√3)(4 in)² = 16√3 in²
Hello,
Converting 90 in to yd, we have:
90in * 1ft/12in * 1yd/3ft = 2.5 yd
Next,
Since A of a rectangle is b*h,
A = 2.5yd * 3yd = 7.5 yd ^2.
Good luck to you!
