<span>MCAS Open-Response Questions & Answers. Mathematics – Middle School Level. Wachusett Regional School District. 1. Rev. April 2003 srm. Question #1 ..... If the grocer uses the same number of 5kg bags as. 2kg bags, how many bags did he use in all? Answer #16 x = total number of bags. 5(1/2x) + 2(1/2 x) = 252.</span><span>
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55: All triangles measures are equal to 180 degrees. By taking 180 - 75 - 50 you get the angle measure for angle C, which is 55. You know the triangles are congruent, so
Answer:
x = 1 and x = ![\frac{-4}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B-4%7D%7B5%7D)
Step-by-step explanation:
In this equation, a=5, b=-1, c=-4.
Plug these into the quadratic formula:
x =
and x = ![\frac{1-\sqrt{-1^{2}-(-4)(5)(-4) } }{2(5)}](https://tex.z-dn.net/?f=%5Cfrac%7B1-%5Csqrt%7B-1%5E%7B2%7D-%28-4%29%285%29%28-4%29%20%7D%20%7D%7B2%285%29%7D)
Now, simplify the equations:
x =
=
=
= 1
and
x =
=
=
= ![\frac{-4}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B-4%7D%7B5%7D)