The given in the problem above is an arithmetic sequence with the first term equal to 4 and the common difference is 5. To determine the number of seats on row 23, use the formula,
an = a1 + (n - 1) d
Solving for the 23rd term,
an = 4 + (22) 5 = 114 seats
Therefore, the answer is there are 114 seats on the 23rd row.
1/6 as a decimal would be 0.16
Remember that the altitude of a triangle is the length of a segment which is perpendicular to the side opposed to a vertex and that passes through the vertex.
On the diagram, we can se that the segment AD is perpendicular to BC and passes through the point A. Therefore, AD is an altitude of the triangle.
Please enclose the fraction (1/2) in parentheses to eliminate any ambiguity.
Simplify -(1/2)(2x+6). Hold the '-' sign. Multiply 2x by (1/2) and then 6 by (1/2). Simplify your result (which should be written inside parentheses). Now write the '-' sign in front of your parentheses.
If you wish, change both signs within the parentheses to '-'. Show your work.
