Let x+500 represent the first year
For the $500 more than the previous year for 4 years, we would write:
(x+500)+(x+500+500+500)+(x+500+500+500+500)= 17,800
By adding the equation above, 4x+5000=17,800
4x=17,800-5000
4x=12,800
x=3,200
So the amount the man was paid in the first year is 3,200+500=3,700
Answer:
k= -11
Step-by-step explanation:
Let's simplify step-by-step.
7k−2(3k+1)−9
Distribute:
=7k+(−2)(3k)+(−2)(1)+−9
=7k+−6k+−2+−9
Combine Like Terms:
=7k+−6k+−2+−9
=(7k+−6k)+(−2+−9)
=k + −11
Answer:
What is the problem?
Step-by-step explanation:
There is no picture or anything?
Answer:
= C: 282 square feet
Step-by-step explanation:
find the area as a whole.
=300
find the area of the missing sides and subtract the from the whole.
=282
answer= C:282 square feet
Answer:
Step-by-step explanation:
a) It is a binomial distribution.
n = 25
p = 0.15
b) mean = np = 25 * 0.15 = 3.75
variance = np(1 - p)
= 25 * 0.15 * (1 - 0.15)
= 3.1875
c) P(X = x) = nCx * px * (1 - p)n - x
P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)
= 25C0 * (0.15)^0 * (0.85)^25 + 25C1 * (0.15)^1 * (0.85)^24 + 25C2 * (0.15)^2 * (0.85)^23 + 25C3 * (0.15)^3 * (0.85)^22 = 0.4711
d) P(X = 3) = 25C3 * (0.15)^3 * (0.85)^22 = 0.2174
