Look at the number 7 on the bottom right of the graph. That means at the end of 7 weeks. Now look vertically up from there until you see a point directly above 7 weeks. Look to the left of that point, and you see that the point directly above 7 weeks is at the level of $90. That means that at the end of 7 weeks, he had $90.

4 0

4 years ago

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What is the determinant of A = [ -2 2 -5 4 -1 -2 1 3 -5]

stepan [7]

Answer:

-51

Step-by-step explanation:

$\begin{vmatrix}-2&2&-5\\4&-1&-2\\1&3&-5\end{vmatrix}=\\=\mathsf{-10-4-60-5+40-12}=\\=\mathsf{-91+40}=\\=\mathsf{-51}$

5 0

3 years ago

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A rectangle has vertices at these coordinates.

sergeinik [125]

Answer:

(-7,3)

Step-by-step explanation:

8 0

3 years ago

The perimeter of a rectangle is 400 yards what are the dimensions of the rectangle if the length is 40 yards more than the with

zloy xaker [14]

P = 2(L + W)
P = 400
L = W + 40

400 = 2(W + 40 + W)
400 = 2(2W + 40)
400 = 4W + 80
400 - 80 = 4W
320 = 4W
320/4 = W
80 = W.....so the width (W) = 80 yards

L = W + 40
L = 80 + 40
L = 120...and the length (L) = 120 yards

7 0

3 years ago