Answer: no
Step-by-step explanation:
If we consider the volume of each orange ( we have considered the orange as a perfect sphere)
we have the volume=(4/3) * π R^3 where is the orange radius
for 3 inch diameter de volume is =1.33*3.1415*3.37 inch^3
for 4 inch diameter de volume is =1.33*3.1415*8 inch^3
Taking into account a dozen of oranges we have to multiplier by 12 both orange volume are:
V dozen 3-inch= 40.44 inch^3 (paying 25 cent)
V dozen 4-inch= 96.00 inch^3 (paying 50 cent)
If she want to buy more that one dozen is economical better choose the 4 inch oranges
Either
y=mx+b
or
y=-1/m*x+k
The scale factor of that problem would be 3in to every 1ft
Answer:
Step-by-step explanation:
k(8) = 4(8) - 4
= 32 - 4
= 28
answer is A
Answer:
A| 12, 3
Step-by-step explanation:
The polynomial can be factored by looking for factors of 36 that sum to -15. The sum being negative while the product is positive means both factors will be negative. The answer choices suggest ...
y = (x -12)(x -3)
A quick check shows this product is ...
y = x^2 -12x -3x +36 = x^2 -15x +36 . . . . as required
The factors are zero when x is either 12 or 3.
The zeros of the equation are 12 and 3.
____
Once you realize the constants in the binomial factors both have a negative sign, you can immediately choose the correct answer (A).
Or, you can use Descartes' rule of signs, which tells you that the two sign changes in the coefficients (+-+) mean there are 2 positive real roots.