Answer:
c = -9
Step-by-step explanation:
4(c + 2) = -28
Divide both sides by 4.
c + 2 = -7
Subtract 2 from both sides.
c = -9
Answer:
Probability that at least 40 can taste difference between two oils:
P(x ≥ 40) = p( x - µ / ∂ ≥ 39.5 – 30 / √29.1)
= p( z > 1.76)
= 1 – 0.9608
= 0.0392
Step-by-step explanation:
Solution:
Given:
Random sample = n = 1000
Probability of people identify the taste = p = 0.03
Probability that people do not identify the taste is 0.97.
Since np = 1000 x 0.03 = 30
And
nq = n(1 – p) = 970
Verify the condition:
np ≥ 10
1000 x 0.03 ≥ 10
30 ≥ 10
And nq ≥ 10
1000 x 0.97 ≥ 10
970 ≥ 10
Hence conditions are satisfied, it is valid to apply normal approximation to binomial distribution.
µ = 30 and ∂ = √29.1
Probability that at least 40 can taste difference between two oils:
P(x ≥ 40) = p( x - µ / ∂ ≥ 39.5 – 30 / √29.1)
= p( z > 1.76)
= 1 – 0.9608
= 0.0392
287 + 19m = s
287 is the starting, then + 19m for $19 per month. = s represents the savings one everything is added.
Answer:
add 2
Step-by-step explanation:
The answers are b,c, & d.Because the box has to be equal to OR greater than 648 to fit all the sweatshirts.