Answer:
P(2 quarters) = 19/ (13*16) = 19/208 = 0.0913
Step-by-step explanation:
probability of getting 2 quarters?
ok
first draw: there are 20 quarters to choose from
second draw: there are 19 quarters left to choose
so Total coins are 65 coins
P(2 quarters) = P( 1st quarter)* P(2nd quarter)
P(2 quarters) = 20/65 * (19/64)
P(2 quarters) = 4/13 * 19/64
P(2 quarters) = 19/ (13*16) = 19/208
X=5 pointn
y=7point
x+y=13
5x+7y=71
solve
multiply first equaiton by -5 and add
-5x-5y=-65
5x+7y=71 +
0x+2y=6
2y=6
divide 2
y=3
sub
x+y=13
x+3=13
x=10
10 five point touchdowns
3 seven point touchdowns
2w+2l=60 and l = 3w+2
All we need to do to find width is substitute the length in the perimeter formula with the length formula we have established.
2w+2(3w+2)=60
2w+6w+4=60
8w+4=60
8w=56
w=7
width is 7 feet
Step-by-step explanation:
6t-13t+18t6t-13t+18t6t-13t+18t
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
H0 : μ = 1
H1 : μ > 1
Sample size, n = 20 ; xbar = 1.05; Standard deviation, s = 0.13
Test statistic;
t because sample size is < 30
(xbar - μ) ÷ (s/sqrt(n))
(1.05 - 1) ÷ (0.13 / sqrt(20))
0.05 ÷ 0.0290688
= 1.7200572
Using a p value calculator :
With alpha = 0.05 ; df = n - 1 = 20 - 1 = 19
P value = 0.05084
P value > alpha
We fail to reject H0
There is not sufficient evidence to support that the new personnel are producing loaves that are heavier than 1 pound
