Answer:
Step-by-step explanation:
3x+2<11
3x<9
3x/3<9/3
X<3
X=3
Already in terms of c x(ax+bx)/3=c
(ax^2 + bx^2)/3=c. Multiply parentheses by x
ax^2 + bx^2=3c. Multiply each side by 3
ax+bx=√3c. Take the square root of both sides
x(a+b)=√3c
a+b=√3c/x
a=√3c/x - b or b=√3c/x - a
12.00x0.06, which is 0.72, so the sales tax is 72 cents. Basically, what you do to answer these kinds of questions is divide the percentage by 100 (6/100=0.06), because the percentage is out of 100%. Then you multiply that number by the price to get the sales tax. If you wanted to find the total price, add the tax you found to the original price ( in this case would give us $12.72 )
Hope this helps!
Answer:
y = (-1/2)x
Step-by-step explanation:
The slope of the given line is 2, the perpendicular line wil have a reciprocal slope given by -1/2 (add a minus sign, move the slope to the denominator).
So all that's left to calculate is the offset b of a line
y = -1/2 x + b
such that it passes through (4,-2). Filling in that point gives:
-2 = -1/2*4 + b
so b = 0!
y = -1/2x is the answer
