Answer:
x = - 2
y = 6
Step-by-step explanation:
The best way to do this is to put - 3x in for y in the second equation.
4x - 2(-3x) = - 20 Watch the signs. You have 2 minus signs.
4x - - 6x = -20 Change - - 6x to 6x
4x + 6x = - 20 Add
10x = - 20 Divide by 10
x = -20/10
x = - 2
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Find y
y = - 3x
y = -3 * -2
y = 6
Which of the following sequences is an arithmetic sequence? 1, 2, 4, 8, 18, ... 10, 12, 14, 16, 18, ... 200, 100, 50, 25, ... 4,
Leni [432]
The sequence 10, 12, 14, 16, 18, ... is an arithmetic sequence, with the common difference being 2.
Answer:
Step-by-step explanation:
Simplify 3 ratical- 1000
Answer:
x=78
Step-by-step explanation:
the sum of all angles in a triangle=180
180-59=129
y>x
70+59=129
180-129=51
129-51=78
x=78
Since z is GREATER THAN two angles in the triangle it must be obtuse..
meaning it is GREATER THAN 90 degrees this means that the other two angles cannot equal 90 degrees they have to be less
m∠X + m∠Y < 90°
