Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.

Get a Professional Answer

Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.

100% Satisfaction Guarantee

Rate the answer you receive.

Ask akch2002 Your Own Question

akch2002, Engineer

Category: Homework

Satisfied Customers: 2974

Experience: Home work expert

46493125

Type Your Homework Question Here...

akch2002 is online now

1. Find the current in a circuit if the power is 500 W (watts)

Resolved Question:

1. Find the current in a circuit if the power is 500 W (watts) and the resistance is 25 ohms. Round off your answer to two decimal places. Use the formula I = √p/r. A. 0.05 A B. 0.22 A C. 20 A D. 4.47 A 2. The expression b/c = b/c is an example of a(n) A. identity. B. square root. C. root. D. reciprocal. 3. The distance h a body will move in a free fall is expressed by the formula h = 1/2 gt 2. If g = 980 cm per sec per sec and t = 20 sec, the distance h is A. 49,000 cm. B. 196,000 cm. C. 9,800 cm. D. 368,000 cm. 4. Find the value of x in the following equation: x/2 + 2x/5 = 18 A. x = 255/7 B. x = 2 C. x = 11/2 D. x = 20 5. Which one of the following formulas correctly expresses this statement: The number x is equal to another number n plus the square root of 3. A.x =√n+3 ￼￼￼￼￼￼￼ ￼B. x = n + 32 C. x = n + √3 D. x = 3n2 6. Find the area of a triangle with a base of 10 in. and an altitude of 14 in. (The formula for the area of a triangle is A = bh ÷ 2.) A. 70 sq in. B. 140 sq in. C. 24 sq in. D. 280 sq in. 7. The formula for perimeter is p = 2 l + 2 w. If the perimeter p of a rectangle is 200 mm (millimeters) and the width w = 30 mm, what is l? A. 140 mm B. 60 mm C. 70 mm D. 100 mm 8. What is the reciprocal of the number 2? A. √2 B. 2/1 C. 22 D. 1/2 9. If the area of a square is represented by the formula A = s2, and the area A = 64 sq cm (square centimeters), what is the side s of the square? A. 8 cm B. 16 cm C. 4 cm D. 32 cm 10. If the area A of a triangle is 60 sq m (square meters) and the base b is 20 m (meters), what is the altitude h? A. 3 m B. 6 m C. 11/2 m D. 2/3 m 11. Solve the following equation for y. √2y + 3 = 11 A. y = 64 ￼￼￼￼ ￼B. y = 16 C. y = 32 D. y = 4 12. Which one of the following formulas correctly expresses this statement: A quantity x is equal to the sum of the squares of a and b? A.x =2a+2b B. x = √ab C. x = √a + b D. x = a2 + b2 13. In the equation c2 – 4 = 0, c is equal to A. ±4. B. ±2. C. 16. D. 8. 14. The formula for finding the volume of a pyramid is v = bh/3. What formula should you use to find the altitude h? A. h = 3v/b B. h = v/3b C. h = 3b/v D. h = 3bv 15. Which of the following is a correct statement about the root of an equation? A. The root of an equation is the letter that occurs most frequently. B. The root of an equation is the solution of the equation. C. The root of an equation is the reciprocal of the unknown quantity. D. The root of an equation is a term that's been moved to the opposite side. 16. Simply put, an equation shows A. the value of an unknown quantity. B. a rule for finding an unknown quantity. C. a method for finding the value x. D. that one thing is equal to another. 17. Solve the following equation for y: 2 + √4y – 3 = 11 A. y = 18 B. y = 3 C. y = 36 D. y = 6 ￼￼￼￼￼￼ 18. Find the value of y in the formula y = 5a – 3b + c, if a = 12, b = 4, and c = 8. A. 80 B. 40 C. 56 D. 64 19. Suppose you're given the formula R = s +2t. If you know that s is three times greater than t, how could you rewrite the formula? A. R = 3(s + 2t) B. R = 5s C. R = 5t D. R = 3(s + t) 20. The expression a = 3b2 + 2 can be written in words as the quantity a is equal to A. three times the square root of b plus two. B. two more than three times the quantity b squared. C. two plus the square root of three × b. D. three times the quantity two plus b squared.

THIS ANSWER IS LOCKED! You can view this answer by clicking here to Register or Login and paying $3. If you've already paid for this answer, simply Login.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal ...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.Freshfield, Liverpool, UK

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.DianeDallas, TX