Subtract 15 on both sides and you get the answer x= -27
angle of triangle is 180°
the angle beside 70° is 70°also because it has mention it is an isosceles triangle so that the two angle must be same
third angle will be 180°-70°-70°=40°
With one digit you can only make three numbers, 2, 5, and 8.
With two digits, _ _ there are 3 possibilities for the first digit and 2 in the second totaling 3*2 = 6 possibilities.
With three digits, _ _ _, there are 3 possibles in the first digit, 2 in the second and only 1 in the last. 3*2*1 = 6
Now we add all of the possibilities - 3+6+6 = 15.
Your final answer should be 15 numbers. Hope this helps!
The sum of the expression (–x² + x) and (x² – 3x – 1) will be –2x – 1. Then the correct option is D.
<h3>What is Algebra?</h3>
The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
The expression can be written as
(–x² + x) and (x² – 3x – 1)
Then the sum of the expression (–x² + x) and (x² – 3x – 1) will be
(–x² + x) + (x² – 3x – 1) = –2x – 1
Then the correct option is D.
More about the Algebra link is given below.
brainly.com/question/953809
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