The probability is 0.336.
To solve this, we need Binomial Probability equation for Repeated Trials.
P = nCr (p)^r (q)^(n-r)
where P = probability (unknown)
n = number of trials (8)
r = number of successes (1)
p = probability of success (.20)
q = probability of failure (0.80)
P = 8C1 (.20)^1 (.80)^7
= 0.336
Answer:
After 7.5 years we will have enough money in the account to purchase the car.
Step-by-step explanation:
Amount needed to be saved = $10000
Principal = $6500
So, Simple Interest = $3500
Rate of Interest = 7.5%
= 0.075
Now, Simple Interest = Principal × Rate × Time
⇒ 3500 = 6500 × 0.075 × Time
⇒ 3500 = 487.5 × Time
⇒ Time = 7.18 years ≈ 7.5 years
Hence, after 7.5 years we will have enough money in the account to purchase the car.
Step-by-step explanation:
Answer:
{1,6}
Step-by-step explanation:
the second box is always where the y values/range are
Answer:
-64
Step-by-step explanation:
When given two points we can use the slope formula
m = (y2-y1)/(x2-x1)
= (-7 -57)/(38-37)
=-64/1
= -64
Use Pythagoras (x^2 + y^2 = r^2)
Simplified: leg squared plus leg squared equals hypotenuse squared.
Therefore 4^2 + 6^2 = h^2
16+36=h^2
h^2 = 52
H= root of 52=7,21 inches
