Answer:
a) (2x+7)(x-4)
b) x = -7/2 and x = 4
Step-by-step explanation:
a) (2x ?)(x ?)
set up the above and considered factors of 28 that, when paired with 2, would give me -1x and -28 → (1·28, 2·14, 4·7)
after trial-and-error, found that 4 and 7 worked (used un-FOIL)
b) 2x + 7 = 0
2x = -7
x = -7/2
*********
x-4 = 0
x = 4
1. One quater and one nicle 2. Three Dimes 3. 6 nickels 4. One dime and four nickles 5. two nickles and two dimes i think
3 1/8
First you take the all the dogs that gained 3/4 (which is 4)
Then you multiply it by 4
3/4x4=3
Then you add the dogs that gained 1/8 of a pound
3+1/8=3 1/8
Answer:
v is 120
Step-by-step explanation:
if the perimeter is 480 then you need to divide 480 by 4 which gives you 120.
p=4(a)
You should plug the x and y values into the original equations to get your b value. You should get a b value of 7. Your new equation should be y=2x+7
