Solve the following systems of linear equations. x1 + x2 − 2x3 + 3x4 + 2x5 = 6 3x1 + 3x2 − x3 + x4 + x5 = 12 2x1 + 2x2 − x3 + x4
− 2x5 = 5 4x1 + 4x2 + x3 − 3x5 = 16 8x1 + 5x2 − 2x3 − x4 + 2x5 = 29
1 answer:
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Because both angles are the same, and are in the same spot in the congruent triangles, we can set these angles up to equal each other:
Add x to both sides:
Subtract 4 from both sides:
Divide both sides by 4 to get x by itself:
The value of x is 17.
Add x to both sides:
Subtract 4 from both sides:
Divide both sides by 4 to get x by itself:
The value of x is 17.
We have been given that Jin cut a round gelatin dessert into 8 equal pieces. Seven of the pieces were eaten. We are asked to find the angle measure of the dessert that was left.
We know that there are 360 degrees degrees in a circle all the way around the center.
Since Jin cut all pieces of same size, so angle measure of all pieces will be equal.
To find the angle measure of each piece, we will divide 360 by 8.
Therefore, the angle measure of the dessert left dessert piece is 45 degrees and option D is the correct choice.