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hanjonez
01.12.2020 •
Mathematics
I need help on this please! This is Geometry :)
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Answers on questions: Mathematics
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Ответ:
a is 4
j is 3
g is 1
Step-by-step explanation:
Ответ:
A) (-4,-4) J) (0,-3) G) (3,0)
Step-by-step explanation:
Since we know the equation for a 180 clockwise rotation is (x,y) —> (-x,-y) we simply just make all coordinates negative. (except for zero ofc)
Ответ:
DAY 15: The measures of the angles in a certain triangle are in the ratio 1: 5: 6. Find the measure of the smallest angle.
x +5x +6x=180
12x =180
x=15º
DAY 16: In triangle ABC, the measure of angle A = 7x - 32, the measure of angle B = 3x + 4, and the exterior angle at C has measure 12 (x - 5). Find the value of x.
exterior angle = sum of two remote (other) interiors
7x -32 +3x+4 =12(x-5)
10x -28 =12x -60
32-2x
x=16
DAY 17: Find the slope of the line perpendicular to the line through the points (21, 11) and (-4, -12).
11 - -12 / 21 - -4 =23/25
slope of perpendicular line is negative reciprocal =
-25/23 ( no 17!)
DAY 18: In a certain triangle, the largest angle is 6 times the smallest. The third angle is 18 less than 4 times the smallest. What is the measure of the smallest angle?
x= smallest
6x =largest
third angle =4x-18
x+6x +4x-18 =180
11x =198
x=18º