Mathematics, 30.09.2019 19:00 alijancaz8812

When angles are complementary, the sum of their measures is 90 degrees. two complementary angles have measure of 2x-10 degrees and l3x-10 degrees. find the measures of each angle.

Answers: 2

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Since the two angles have a sum of 90 degrees, we can add the two expressions together and set it equal to 90.
$2x-10+13x-10=90\\15x-20=90\\15x=110\\x=22/3\\2(22/3)-10=14/3\\90-14/3=256/3$

Answer from: o11011195

Not sure if 13x-10 or 3x-10 since that is an 'l' so therefor I will solve for both
they add to 90 so add the 2 angles
if 13x-10 go to
if 3x-10 then go to

2x-10+13x-10=90
group like terms
2x+13x-10-10=90
addd liket erms
15x-20=90
add 20 to both sides
15x=110
divide both sides by 15
x=22/3
subsitute
2x-10
2(22/3)-10
44/3-10
14 and 2/3-10
4 and 2/3 is one angle
then subtract the other one
90-4 and 2/3=85 and1/3
the angles are 4 and 2/3 and 85 and 1/3

2x-10 and 3x-10
add
2x-10+3x-10=90
gropu liek terms
2x+3x-10-10=90
add likke terms
5x-20=90
add 20
5x=110
divide y 5
x=22
subsitute
2(22)-10
44-10
34
subtract
90-34=56
the angles are 34 and 56 degrees

I would go with 34 and 56 because you sometimes deal with whole numbers more in math

Answer from: Quest

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

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note: the best i know.

Answer from: Quest

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

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When angles are complementary, the sum of their measures is 90 degrees. two complementary angles hav...