Answer:
0.8413
Step-by-step explanation:
p = 0.10
σ = √(pq/n) = 0.01
z = (x − μ) / σ
z = (0.11 − 0.10) / 0.01
z = 1
P(Z < 1) = 0.8413
Answer:
Step-by-step explanation:
a) Tip = 15% of bill = 15% * 21 = 0.15 * 21 = $ 3.15
Amount including tips = 21 + 3.15 = $ 24.15
b) Tip = 15% of b = 0.15b
Amount including tips = b +0.15b
Answer:
3/2
Step-by-step explanation:
● (-3/8) ÷(-1/4)
Flip the second fraction by putting 1 instead 4 and vice versa.
● (-3/8)* (-4/1)
-4 over 1 is -4 since dividing by 1 gives the same number.
● (-3/8)*(-4)
Eliminate the - signs in both fractions since multiplying two negative numbers by each other gives a positive number.
●( 3/8)*4
● (3*4/8)
8 is 2 times 4
● (3*4)/(4*2)
Simplify by eliminating 4 in the fraction.
● 3/2
The result is 3/2
Answer: 8282828
Step-by-step explanation: I’m not sure
In order to do this you can <span>factorise it to get
(x+1)^2 + (y-5)^2 = 16 = 4^2
hence centre is (-1,5) and radius is 4
</span>I hope this is what you are looking for