( - 6, 0).(2, 0 ) , vertex = ( - 2, - 16)
to find the x-intercepts set f(x) = 0
x² + 4x - 12 = 0
(x + 6)(x - 2) = 0 ( equate each factor to zero and solve for x )
x + 6 = 0 ⇒ x = - 6
x - 2 = 0 ⇒ x = 2
x- intercepts are ( - 6, 0),(2, 0)
given the quadratic in standard form : y = ax² + bx + c
the x-coordinate of the vertex = -
here a = 1 , b = 4 and c = - 12
x- coordinate of vertex = - = - 2
substitute this value into the equation for y-coordinate
x = - 2 → y = 4 - 8 - 12 = - 16
vertex = ( - 2, - 16)
You can multiply .72 by 350 because 72% is actually a decimal of .72. In these types of question of means to multiply so the answer would be 252
Answer: 0.001
Step-by-step explanation:
Given
The lock has 3 dials, each with the number 0 through 9.
The first place can be filled in 10 ways and the probability of selecting number '4' out of the 10 is
Similarly for selecting '3' and '9' is also
Therefore the probability of getting a combination of 4-3-9 is
Answer:
Total cost of topps card = $104.5
Step-by-step explanation:
Given:
Cost of each topps card = $5.50
Cost of each fleer card = $3.90
Total number of cards = 46
Total cost = $209.80
Find:
Total cost of topps card
Computation:
Assume;
Number of topps card = T
Number of fleer card = F
So,
T + F = 46.......eq1
and
Total cost of topps card = 5.50T
Total cost of fleer card = 3.90F
So,
5.50T + 3.90F = 209.80.....eq2
eq1 x 3.90
3.90T + 3.90F = 179.4.......eq3
eq2 - eq3
1.6T = 30.4
T = 19
Number of topps card = 19
Total cost of topps card = 5.50(19)
Total cost of topps card = $104.5