Q and A for the topic: General

Determine the type of reaction, predict the products, and balance the compounds and reaction. Iron (II) oxide + oxygen →

Determine the type of reaction, predict the products, and balance the compounds and reaction. Zinc (II) sulfide →

A hair dryer emits energy in the form of heat. If 48,000 Joules of energy (work) are emitted by the hair dryer each minute, what is the power of the hair dryer in watts? In horsepower?

A recent telephone bill totaled $ 120, which included a 5% sales tax and 15% excise tax. What was the basic charge for telephone usage?

A bakery bakes 200 cupcakes at a cost of $0.40 each. The bakery's markup is 100% of cost. Approximately 30% of the cakes will sell at a reduced price of $0.60 each. What must the regular price per cake be? [Round your answer to 2 decimal places.] Group of answer choices .89 .78 1.02 Can't be determined

For a banquet of 45 people you will need 100g of cooked carrots per person. The setup drop is 15% and the tournament loss is 26%. The cooking loss accounts for another 6%.

We spent 7 hours making food. We spent 1/4 of that time making brownies. How long did it take us to make the brownies?

Solve the equation sin 2x - sin x = 0

A meter stick is balanced on a stand at the 50 cm mark. A 42 -g mass is placed on one side at the 29 cm mark (i.e., not at 29 cm from the 50, but at the point marked as 29 cm). At what cm mark would you place a 47-g mass so that the system balances? Write your answer in terms of the position in cm on the meter stick (to one place of decimal ) .

Beth visits a large department store during the January sales. She spots these two sale stickers. Which one has the larger percentage reduction? Was $39.99 Now $25! Or Normal price $52 Take 35% off!

calculate based on ex A= (1+e*x)( 1-e*x)

solve equation exp(3-n) = exp(2n)

solve the equation e*2*n+7*e*n-8=0

In a particular retail clothing store, approximately 25% of potential customers who walk into the store make a purchase. In a random sample of 20 customers that walked into the store, ________________________________________ a. what is the probability that exactly 10 of the customers make purchases? b. what is the probability that at least 2 of the customers make purchases? c. how many of the customers are expected to make purchases? d. what is the standard deviation of the number of customers who make purchases?

If the interest rate recognized by some financial documents is 5% simple annual. How much money is there in 3 years, if a company invests $240,000.00 today

Prove that if n is a perfect square,then n+2 is not perfect square

3ln3^x =4

company B receives all UM allowances for free and that company A receives no allowances at all. What will the allocation of emission rights look like when the companies have achieved a pareto-efficient solution by "trading emissions rights" with each other (emissions trading)? Illustrate your reasoning with a figure and explain the way to the solution. Can you imagine a situation where a very uneven distribution of emission rights could be motivated? (Remember that the companies can be industries or countries).

In 12 - In 4 reduce logarithmic expression

420ml= OZ Can you please show the work on how I figure out this problem