Answer:
Step-by-step explanation:
The function is f(x) = -4x²+10x-8
Let Δ be our the dicriminant
- Δ= b²-4ac
- b = 10
- a = -4
- c = -8
- Δ = 10²-4*(-4)(-8)
- Δ = 100-128
- Δ = -28
The value of the discriminant is -28 and since it is negative this function has no real zeroes
Answer:
Step-by-step explanation:
Answer:
No, because each sample of 100 does not have the same chance of being selected.
Step-by-step explanation:
Simple random samples require that every possible sample of the population has an equal chance of being selected. Because of the fact that certain ages are being picked at certain amounts, not every possible sample has the same chance of being selected, so this is not an SRS.
Answer:
True
Step-by-step explanation:
Control groups in experiments ar egroups that are separated from the others involved in which the independent variable being tested cannot influence the results. Control groups can also be separated into two groups which consist of positive nad negative.
Hope this Helps!
Answer:100.53mm
Step-by-step explanation:
