The half-life of a radioactive substance is 2 hours. If 180 grams are present initially, how many grams will be present in 5.2 hours?
The half-life of a radioactive substance is 2 hours. If 180 grams are present initially, how many grams will be present in 5.2 hours?
If $500 is deposited to an account paying 4.2% interested compounded semiannually, how long it will take for the account to increase to $900? (Round your answer to the whole nu...
You want to buy a $252,000 home. You plan to pay 15% as a down payment, and take out a 30 year fixed loan for the rest. a) How much is the loan amount going to be? b)...
You want to be able to withdraw $40,000 from your account each year for 30 years after you retire. If you expect to retire in 20 years and your account earns 7.8% interest compounded annually: a)...
The height h, in feet, of a golf ball t seconds after it has been hit is given by the equation h = −16t2 + 62t. How many seconds after the ball is hit will the height of the ball be 42 feet? Round...
This is a math problem I need solved ASAP Thanks.
You decide to contribute to a mutual fund that averages 4.6% return per year. If you contribute $550 quarterly. Round all answers to the nearest cent as needed. a) How much will...
x^3-11/4 x^2+5/4 x+1/2=0
3x^3-11x^2-6x+8=0
x^3-3x^2-4x+12=0
The fox movie theater has 360 seats. There are 500 student in the 6th grade. if 80% of the 6 gradd studento want to go to the fox theater for a class field trip,will there be enough seats...
when marissa family entered the galaxy movie theater,45% of the 600 seats were filled.How many people were already in the theater
1)) (write and equation) A truck leaves a house and travels at a steady rate of 40mi/h. the family leaves the house 1 hour later following the same route. they travel at a steady rate of...
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Please help me out on this question, I've been str with
Need help solving these: 1.) What is the discriminant of the equation x^2+5x-11=-7? 2.) Solve by completing the square: 5x^2-9x=5. 3.) What are the zeros of the quadratic function...
The endpoint of a line segment is (-4,-5). The midpoint of the segment is (-6,2).
The mean grade for the class is 73.
Jane wanst to bring her bowling average up to an 85 with her performance on her next game. So far she has bowled 5 out of 7 equally weighted games and she has an average score of 83
Math problem. Please explain how you got the answer.