If they use (20-20x0.15)+(20-20x.015)x0.05 the final cost would be $34.05
Hope this helps
Answer: it can have at most one right angle but at most, 2 acute angles
Step-by-step explanation:
A triangle is a shape bounded by 3 sides and it has three angles.
The sum of the angles is 180 degrees
A right angle is 90 degrees. So a tight angled triangle has one of the angles equal to 90 degrees.
An acute angle is an angle lesser than 90 degrees.
An obtuse angle is an angle greater than 90 degrees but lesser than 180 degrees. Assuming we have a right angle triangle.
So a triangle can have at most one right angle while a triangle can have more than one acute angle. For example, a right angled triangle has two acute angles. So also, a triangle containing an obtuse angle has two acute angles
Answer: g(x) = f(2x) = 4(2x)-6= 8x-6 => c
Step-by-step explanation:
Answer:
x^2 +4x = 18
Step-by-step explanation:
The variable y is isolated in the first equation by dividing both sides by the coefficient of y:
3y = 12x . . . . . . given
3y/3 = 12x/3 . . . . . divide by the coefficient of y
y = 4x . . . . . . . simplify
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This expression (4x) is put in place of y when substitution is used.
x^2 +y = 18 . . . . given
x^2 +4x = 18 . . . . . with 4x substituted for y
