Answer:
a = -2 or a = -5
Step-by-step explanation:
We want 
. We can subtract 2 from both sides of this equation to get 
. We can factor this to get that 
. When the product of two numbers is equal to zero, one of the numbers must be equal to zero. This means that either a + 2 = 0, in which case a = -2, or a + 5 = 0, in which case a = -5.
Answer:
It is 1 unit to the right of 0.
Step-by-step explanation:
Answer:
Yes it does because 985 is equal to 985.
Answer:
Each time, t, is associated with exactly one car value, y.
Step-by-step explanation:
Answer:
9.76
Step-by-step explanation:
area of a rectangle = length * breadth
length = (2x + 3)
breadth = x
given area is 220 sq. inches.
thus,
220 = x * (2x+3)
220 = 2x² +3x
2x² + 3x -220 = 0
x = (-b + √ ( b²-4ac) ) ÷ 2a
x = ( -3 + √ ( 3² - 4*2*220) ) ÷ 2*2
x =9.76
