Answer:
1372/3
Step-by-step explanation:
If x -1/x = 4 then the value of x3+1/x3
Answer:
-6
Step-by-step explanation:
-1(3) + 1 / 4(3)
-3+1/12
-2/12 = -6
if that's what you mean
Answer:
Angle congruent to ∠WZY is ∠WXY
Answer:
Anurak has 15 pennies, 6 nickels and 3 dimes.
Step-by-step explanation:
We must have these informations in mind:
1) A penny is a 1-cent coin.
2) A dime is a 10-cent coin.
3) A nickel is a 5-cent coin.
Let be , , the quantities of pennies, nickels and dimes, respectively. From statement we get that to value in Anurak's pocket is represented by this mathematical expression:
(Eq. 1)
In addition, we get the following identities:
i)He has three more nickels than dimes
(Eq. 2)
ii)And five times as many pennies as dimes
(Eq. 3)
The system of linear equations is now reduced: (Eqs. 2, 3) in (Eq. 1)
The remaining variables are and .
Anurak has 15 pennies, 6 nickels and 3 dimes.
Answer:
Anurak has 15 pennies, 6 nickels and 3 dimes.
Step-by-step explanation:
M+2(m-5)
Answer: 105.9 lbs and 309.3 lbs
Step-by-step explanation:
By Chebyshev's Theorem, the proportion of patients with weights within 4.5 standard deviations of the mean is at least 95%. Therefore k=4.5.
The weight that is 4.5 standard deviations less than the mean is 207.6−4.5(22.6)=105.9 pounds.
The weight that is 4.5 standard deviations greater than the mean is 207.6+4.5(22.6)=309.3 pounds.
So at least 95% of the patients have weights between 105.9 and 309.3 pounds.