Answer:
option D
Step-by-step explanation:
x=-1 and x=-3 are the real zeros
We plug in the x values in each equation and check which equation makes y=0
A) y=x^4-4x^3-4x^2-4x-3
x=-1 ,
x=-3 ,
y is not equal to 0 so option A is not correct
B.y=-x^4-4x^3+4x^2+4x+3
x=-1 ,
x=-3 ,
y is not equal to 0 so option B is not correct
C.y=x^4+4x^3+3x^2+4x-4
x=-1 ,
x=-3 ,
y is not equal to 0 so option C is not correct
D) y=x^4+4x^3+4x^2+4x+3
x=-1 ,
x=-3 ,
y=0 so option D has two real zeros x=-1 and x=-3
For this case we have to, a pound of candies costs $14.95. Then, to know the cost of 0.63 pounds of candies we make a rule of three:
1lb -------------> $14.95
0.63 lb --------> x
Where "x" represents the cost of 0.63 pounds of candy.
Thus, 0.63 pounds of candy cost $9.4185.
ANswer:
0.63 pounds of candy cost $9.4185.
Divide the two numbers and then multiply by 100.
Answer:
x = 5
Step-by-step explanation:
Applying Pythagoras' identity to the right triangle
x² + 12² = 13²
x² + 144 = 169 ( subtract 144 from both sides )
x² = 25 ( take the square root of both sides )
x = = 5
I'm pretty sure you are :)