Try drawing a picture! To reflect something over the x-axis just change the sign of the y coordinates.
Here we shall use the binomial distribution formula to evaluate the probability:
let the probability that the temp will be above 80 be P(F)=2/3;
Probability that the temp will be below 80 be P(F')=1/3
thus,
The probability that the temp will be above 80 for 20 days for the month of June will be:
P(F)=n!/((n-x)!x!)p^xq^(n-x)
p=2/3 and q=1/3, n=30, x=20
plugging the values in the equation we obtain:
P(F)=30!/(10!*20!)*(2/3)^20*(1/3)^(30-20)
P(F)=0.153
Answer: There are n = a/7 pretzels into each bag.
Step-by-step explanation:
The options are missing, but ill try to explain it anyways.
Suppose that Sydney has pretzels, where a is an integer number.
If she puts the same number of pretzels into 7 bags. then we must divide an into 7 equal parts, then the amount of pretzels that go into each bag is
n = a/7
Discount is 25% , so you pay 75% of original price.
Sale price = 35*.75 = 26.25
Add Tax --> 26.25 + 26.25*.07 = 26.25 + 1.84 = 28.09
Total purchase price = 28.09
Answer:
(0, -4)
Step-by-step explanation:
Given the inequality expression
y>−2x+y≤4
This can be splitted into
y>−2x+y .... 1
and -2x+y≤4 .... 2
From1;
y>−2x+y
y - y >−2x
0 >−2x
-2x < 0
x > 0/-2
x>0
Substitute x = 0 into 2
-2(0)+ y ≤4
y≤4
Hence the solution is (0, -4)
