The height of the prism is
Explanation:
It is given that the area of the cross section of the rectangular prism is 45 square inches.
Length of the rectangular prism is
Width of the rectangular prism is
To determine the height of the prism, let us substitute these values in the formula , we get,
Multiplying the terms within the bracket, we get,
Adding the terms within the bracket, we have,
Dividing both sides by 20, we get,
Thus, the height of the rectangular prism is
y=-x -
Answer:
The third choice
Step-by-step explanation:
We need to find the slope and y-intercept of the line and then put it into y = mx = b form. To find the slope, pick a point on the line; I will use (-2, 5); count how many units up you need to go to get to the next point on the line, which in this case it would be 3. The count how many to the right or left you would need to go, which is 1 to the left. Moving left means a negative, so it is -1. Your slope fraction would be , since slope is rise over run. You can sub this fraction in for m in y = mx + b, which will give you a revised equation of y = -3x = b. To find the y intercept, or b, just find the point where the line crosses the y-axis, which is -1. So, the equation is now y = -3x - 1.The correct answer is third choice.