Answer:
h(x-1)=4x-7
Step-by-step explanation:
Given :
h(x)=4x-3
Now,
putting the value of x =x-1
h(x-1)=(4(x-1)-3)
h(x-1)=4x-4-3
h(x-1)=4x-7
Answer will be h(x-1)=4x-7
Answer:
23
Step-by-step explanation:
Answer:
Method A.
Step-by-step explanation:
For solving this question we need to find out the z-scores for both methods,
Since, the z-score formula is,

Where,
is mean,
is standard deviation,
Given,
For method A,


Thus, the z score for 34 is,

While, for method B,


Thus, the z score for 34 is,
,
Since, 
Hence, method A is preferred if the procedure must be completed within 34 minutes.
Step-by-step explanation:
The total number of parts is 4 + 1 + 2 = 7.
Nickel is 4/7 of the mass: 4/7 × 35 kg = 20 kg.
Zinc is 1/7 of the mass: 1/7 × 35 kg = 5 kg.
Copper is 2/7 of the mass: 2/7 × 35 = 10 kg.