Answer:
x=0
Step-by-step explanation:
Take the logarithm of both sides of the equation to remove the variable from the exponent. Hope this helps!
Answer:
0.95
(Don't have paper, because I accidentally threw away paper )
Answer:
original price = $40
Step-by-step explanation:
if 70% ---> $28 then
1% ---> $28/70 = $0.4
then we know original price should be 100%
original price = 100 * 0.4 = $40
OR
basic easy function:
(28/70) * 100
$40
I believe that the proper binomials that factor this expression would be C, if not it would be B.
Answer:
y = -3/4(x - 6)^2 + 3
Step-by-step explanation:
y = ax^2 + bx + c
(4, 0)
16a + 4b + c = 0 Eq. 1
(8, 0)
64a + 8b + c = 0 Eq. 2
(6, 3)
36a + 6b + c = 3 Eq. 3
We have a system of three equations in three variables.
Eq. 2 - Eq. 1
48a + 4b = 0 Eq. 4
Eq. 2 - Eq. 3
28a + 2b = -3 Eq. 5
Eq. 4 - 2 * Eq. 5
-8a = 6
a = -6/8
a = -3/4
48a + 4b = 0
48(-3/4) + 4b = 0
4b = 36
b = 9
16a + 4b + c = 0
16(-3/4) + 4(9) + c = 0
-12 + 36 + c = 0
c = -24
The equation of the parabola is
y = -3/4 x^2 + 9x - 24
y = -3/4(x^2 - 12x + 32)
y = -3/4(x^2 - 12x + 36) + (-3/4)32 - (-3/4)(36)
y = -3/4(x^2 - 12x + 36) -24 + 27
y = -3/4(x - 6)^2 + 3