Questions in mathematics

Questions in mathematics

[Done] What is the final balance for the investment of $1500 for 3 years at 10% compounded annually? A. $1625.00 B. $1875.00 C. $1996.50 D. $2110.50

[Done] What is \(23^2\) and \(62^2\)?

[Done] RATIO HELP PLEASE 1. Mrs. Perry shares 20 biscuits between Gemma and Zak in the ratio 1:4. How many biscuits do they each get? 2. Mr. Castle shares 80 marbles between Emily and Asif in the ratio 7:1. How many marbles do they each get? 3. Ms. Adams shares 10 pencils between Niamh and Jack in the ratio 2:3. How many pencils do they each get?

[Done] At Alan's Sports Shop, GO FAST trainers originally cost £40.95, and there is a third off in the sale. At Irene's Sports Shop, GO FAST trainers originally cost £40.00, and there is a discount of 30% in the sale. Which trainers cost less in the sale?

[Done] How do you prove the identity: \[ \cos^2x - \sin^2x = 1 - 2\sin^2x \]

[Done] If water flows into a rectangular tank at the rate of 6 cubic feet per minute, how long will it take to fill the tank, which measures 18'' x 32'' x 27''?

[Done] Is 0.071 greater or less than 0.7?

[Done] Helen determined she walks about 1,800 steps per [tex]\frac{4}{5}[/tex] mile. How many steps did she take if she walked 3 miles?

[Done] Ashleigh rode her bicycle 26.5 miles in 4 hours. Which is the best estimate of how far Ashleigh rode in 1 hour?

[Done] I am a 3-digit number that is even. - My hundreds and ones digits are the same and have a sum of 8. - My tens digit is 2 less than my ones digit. What number am I?