Read the paragraph, then go back and see which of the points match up and which don’t
Answer:
-40=a
Step-by-step explanation:
( a-5)/(a+4) = 5/4
Multiply by (a+4) on each side
( a-5)/(a+4) * (a+4) = 5/4 (a+4)
a-5 = 5/4 (a+4)
Multiply by 4 on each side to clear the fractions
4(a-5) = 5/4*4 (a+4)
4(a-5) = 5 (a+4)
Distribute
4a -20 =5a +20
Subtract 4a from each side
4a -4a -20 = 5a-4a +20
-20 =a+20
Subtract 20 from each side
-20-20 =a+20-20
-40=a
It's d 780 because you multiply 13 by 5 then multiply that answer by 12 and you get 780
Answer:
Slope intercept form is y=mx+b. M= -1, which means your slope is -1. So far the equation is y=-x+b. Now you need to find b which is the y-intercept. To find b, you will use the point (1,3). You will plug it in into the equation, it will look like this 3=-1(1)+b. Now you solve for b. Multiply -1 and 1 you get -1. Add 1 to both sides and you have b=4. So the equation is y=-x+4. So to find k, plug in the point (k,6). It will look like this 6=-k+4. Subtract 4 on both sides. 2=-k is what you have so far. Divide by -1 on both sides. THE ANSWER IS K=-2.
Actually there are three types of construction that were never accomplished by Greeks using compass and straightedge these are squaring a circle, doubling a cube and trisecting any angle.
The problem of squaring a circle takes on unlike meanings reliant on how one approaches the solution. Beginning with Greeks Many geometric approaches were devised, however none of these methods accomplished the task at hand by means of the plane methods requiring only straightedge and a compass.
The origin of the problem of doubling a cube also referred as duplicating a cube is not certain. Two stories have come down from the Greeks regarding the roots of this problem. The first is that the oracle at Delos ordered that the altar in the temple be doubled over in order to save the Delians from a plague the other one relates that king Minos ordered that a tomb be erected for his son Glaucus.
The structure of regular polygons and the structure of regular solids was a traditional problem in Greek geometry. Cutting an angle into identical thirds or trisection was another matter overall. This was necessary to concept other regular polygons. Hence, trisection of an angle became an significant problem in Greek geometry.
