Hello. I'm having a hard time with this problem. Please help. Thank you.
When a certain polynomial p(x) is divided by (x-1), remainder is 12. When the same polynomial is divided by (x-4), the remainder is 3. Find the remainder when the polynomial is divided by (x-1)(x-4).
Submitted by agentcollins on August 2, 2016 - 4:34pm
The topic is chemical reaction rate.
Two substances A and B are combined to form a product C. The formation of product is proportional to the time the reactants are combined. The final product is composed of two parts of B for every part of A. If initially A is 30 kg and B is 20 kg, and 5 kg of the product is formed after 30 mins., find the function of product formed at any given time.
Submitted by agentcollins on August 2, 2016 - 4:37pm
The topic is chemical reaction rate.
Two substances A and B are combined to form a product C. The formation of product is proportional to the time the reactants are combined. The final product is composed of three parts of A for every part of B. If initially A is 50 lbs and B is 60 lbs, and 10 lbs of the product is formed after 45 mins., find the time it takes for the reaction to form 25 lbs.
The answer is 135 minutes. Show complete solution please. Thank you.
Submitted by Sydney Sales on August 7, 2016 - 2:07pm
A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the interest earned in the principal of P725?
What is the interest earned in the principal of P362.50?
Submitted by Colene Gammad on August 10, 2016 - 12:00pm
You deposit \$1,000 into a 9% account today. At the end of two years, you will deposit another \$3,000. In five years, you plan a \$4,000 purchase. How much is left in the account one year after the purchase?
Problem 424
For the truss shown in Fig. P-424, determine the force in BF by the method of joints and then check this result using the method of sections. Hint: To apply the method of sections, first obtain the value of BE by inspection.
Problem 425
In the Fink truss shown in Fig. P-425, the web members BC and EF are perpendicular to the inclined members at their midpoints. Use the method of sections to determine the force in members DF, DE, and CE.
Submitted by agentcollins on August 21, 2016 - 10:16pm
Mechanics Problem. I need it tomorr before 7 am. Thank you.
A ball is thrown upward with an initial velocity of 49 m/s. Find the velocity after 3 seconds. Find its maximum height. Compute the time it takes for the ball to return to its original point. Use g= 9.81 m/s^2 .
Submitted by agentcollins on August 21, 2016 - 10:17pm
Electric Circuits
Please solve completely. Thank you.
An RL circuit has the following values: R=550 ohms, L=4 henrys and Esub0=110 volts. If i(0)= 0 in the circuit, when does the current reach 90% of its limiting value?
Submitted by Raniedel Inocencio on August 23, 2016 - 11:12pm
Juan plans to raise a new building of 1 million. He raise the building by issuing 10%, 20 yr bond that would pay one hundred fifty thousand interest per year an repay the amount of maturity he can least it for Php 140,000 per year. First payment being due one year from now. The building has an expected life of 20 yrs. ignoring effects on income tax, what is the difference between buying the building and leasing it?
Submitted by Tonette Villanueva on August 25, 2016 - 10:38am
A constant horizontal force of 10 lb rests on a body of smooth horizontal plane. The body starts from rest and is observed to move 250 ft in 5s.
a). What is the mass of the body?
b). If the force ceases to act at the end of 5s, how far will the body move in the next 5s?