Answer:
b = 40
Step-by-step explanation:
A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair.
This situation can be described by an equation of the form y=mx+b , where
x = the time in hours
y = the cost in dollars.
What is the value of b in this equation?
A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair
Writing the above in an equation =
y = $70 × x + $40
y = 70x + 40
Therefore, the value of b in the expression = 40
1:This is a parabola by the looks of the equation and the fact that it's a
satellite dish. The vertex of the equation is (-6,0) and the focus is
2/4, 1/2. 1/2 plus -6 is -5.5. the focus is (-5.5,0).
This answer is only true if the actual equation is y^2 not 2y
2:<span>y=-(x+3)^2/8+1
3:</span>This is the answer(–1.25, –3),
4:
answer is: x^2=-12y
Answer:
C
Step-by-step explanation:
The Triangle Angle Bisector theorem says that and angle bisector will divide the opposite side into 2 segments that are proportional to the other 2 sides of the triangle.
Thus, from the definition, we can say 28 and x is proportional to 14 and 8.
We can set up a ratio, cross multiply, and solve for x:
So the value of x is 16 and thus the correct answer is C
Answer: Second option.
Step-by-step explanation:
The Slope-Intercept form of the equation of the line is:
Where "m" is the slope of the line and "b" is the y-intercept.
You know that the second equation of the System of equations given in the exercise is:
Then, you need to solve for the variable "y" in order to write it in Slope-Intercept form. The steps are:
1. Apply the Distributive property and simplify:
2. Now subtract 6 from both sides of the equation:
3. Subtract from both sides of the equation:
4. Subtract from both sides:
5. Divide both sides by -2:
The 3 angles of a triangle add up to 180 degrees so:-
10x - 10 + 10x + 8 + 8x = 180
28x = 180 + 10 - 8
28x = 182
x = 6.5 (answer)