Answer:
Garage A- 3x12+10=46
Garage B- 4x12+3=51
Garage A is $5 cheaper than Garage B when parking for 12 hours
Step-by-step explanation:
You plug in the variables given to each garage into y=mx+b. Both Garage A and B have a constant (A-$10, B-$3). X in this equation would be the number of hours and m is the amount charged per hour.
Hello from MrBillDoesMath!
Answer:
The first choice (with the square roots of negative integers)
Discussion:
Number such as 0,1,2,3 or -4, -5, -8, or Pi, sqrt(12), sqrt(15), or 1/2, 1/10, 1/14 are all REAL numbers.
The square root of a negative number, such as sqrt(-3), is an imaginary number. The answer is the first choice
Thank you,
MrB
Answer:
C
Step-by-step explanation:
multiply the 1st equation by -3
3x^3 -3x^2 -18x = 3x(x^2 -x -6) = 3x(x-3)(x+2) so the 3rd choice is right sure
hope helped
We have that
y = -5/8 x²- 3x + 4----> multiply by 8----> 8y=-5x²-24x+32
8y-32=-5x²-24x
Factor the leading coefficient
8y-32=-5*(x²+4.8x)
Complete the square Remember to balance the equation
by adding the same constants to each side.
8y-32=-5*(x²+4.8x+5.76-5.76)
8y-32-28.8=-5*(x²+4.8x+5.76)
8y-60.8=-5*(x+2.4)²
8*(y-7.6)=-5*(x+2.4)²
-(8/5)*(y-7.6)=(x+2.4)²
-(1.6)*(y-7.6)=(x+2.4)²
is a vertical parabola-----> open down
The standard form is (x - h)²<span> = 4p (y - k)
</span>
the vertex is the point (-2.4,7.6)
4p=-1.6
p=-1.6/4----> p=-0.40
<span>the directrix is
y= k - p-------> 7.6-(-0.40)----> y=7.6+0.40----> y=8
</span>
the answer isy=8