8. ab = cd
.. 3x+4 = 4x-1
.. 5 = x
.. ab = 3*5 +4
.. ab = 19
11. Adjacent vertex angles are supplementary and opposite angles are equal. If the angles are vertex angles numbered in order around the figure,
.. ∠2 = 12°
.. ∠3 = 168°
13. If the quadrilateral is a parallelogram so that point E is the midpoint of both diagonals, it will be a rectangle when the diagonals are equal length.
.. ae = be
.. x +22 = 3x -18
.. 40 = 2x
.. x = 20 . . . . . will make segments AE and BE the same length
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In general, diagrams are helpful for geometry problems.
Answer:
Yes, a 60,60,60 angle triangle equals 180
Step-by-step explanation:
Every triangle has to equal 180 degrees or it's not a triangle at all. This forms 1 triangle.
Answer:
6 or 7 months
Step-by-step explanation:
Answers:
<h2>27. D</h2><h2>29. C</h2><h2>30. H</h2><h2>31. B</h2><h2>35. C</h2>
Step-by-step explanation:
There is no work to show for 27 & 29
30. Subtract 3 from 32 mi/gal to get the minimum number of miles a gallon, which is 29. Multiply this by 11 to get 319. Add 3 to 32 to get the largest number of mpg, which is 35. Multiply by 11 to get 385.
31. Multiply 60 by 112 to get the amount of cents in 112 dollars, which is 6.720.
35. Try out the numbers, until one works.
72 + 76/2 = 74 ✖
72 + 84/2 = 78 ✖
72 + 88/2 = 80 ✔️
An 80 is a B, so Paula needs at least an 88 to get a B in the class.
HOPE THIS HELPS :)