12/3=4
4*15=60
60*(9)=540
540+3=543
0 - 78 - (-34) + (-14)
34 - 78 - 14
34 + (-14) - 78
I believe those are the correct answers
Answer:
Step-by-step explanation:
Use the following equation the find the slope:
Rise over run is the change in the y-axis over the change in the x-axis from one point to the other. This is also known as the "slope". Insert the known values:
Solve:
Simplify. Two negatives make a positive:
Simplify fraction by dividing top and bottom by 5:
The slope is 3.
:Done
Answer:
Area = 142.5 square inches
Step-by-step explanation:
So your shape is kind of a little house. The bottom part is a rectangle 9 × 9.5. The area of the rectangle is
Area = length×width
= 9 × 9.5
= 85.5
The "roof" of the little house is a triangle. The area of a triangle is 1/2×base×height
Now, the base of the "roof" is the same as the floor of the house, 9.5 inches.
The height of the whole thing is 21 inches. If we take away the rectangle's wall-height, we'll get the height of the "roof".
Roof height= 21 - 9
= 12 inches
Area_roof
=1/2 × base × height
=1/2 × 9.5 × 12
= 57 square inches
Total area is bottom plus roof (the rectangle and the triangle)
Total Area
= 85.5 + 57
= 142.5 sq in
