Answer:
B;A
Step-by-step explanation:
31. Because you are adding 4 to the y value, you are subtracting 4 verically, moving it down 4 units.
32. The vertex formula is y = a(x-h)+k ,where (h,k) is the vertex, and you find the value of "a" based off of another point on the graph.
Let x be the measure of Angle B.
3x+x=180
4x=180
x=45
Therefore, angle B is 45° and angle A is 135°.
Answer:
(a) The price for a revenue of $18,750 is $239.2.
(b) They sold 710 colonial houses and 2130 ranch houses
Step-by-step explanation:
(a) If the weekly revenue is defined as
then the price must be calculated as:
The roots of this function are
The first root is negative, so it is not a real solution. So the second root is the answer.
The price for a revenue of $18,750 is $239.2.
(b) Last year they sold three times as many ranch models (Hr) as they did colonial models (Hc):
The total amount of houses sold (colonial + ranch) is 2840
7x+1+10x-9=19x-18
add like terms
17x-8=19x-18
add 18 to both sides and subtract 17x from both
10=2x
divide by two
x=5