Your classmate says 8 to the tenth power times 8 to the third power is equivalent to 8 to the 30th power identify the mistake and give the correct expression#please show your work
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The mistake he did was multiplying the exponents. When multiplying exponents with the same base (8), all you have to do is add the exponents. so the correct term would be 8^13.
FOIL is usually used to solve equations in two sets of parenthesis, for example: (23+x)(5-4x)
PEMDAS is used to solve multiple-operation equations, such as: 5 x 4 + 6 - 2 x 7
Whew, hope this helped :D
Foil - prevent from succeeding Pemdas - It is a method used my mathematics students to remember operations
How to find the radius of a sphere
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Answer:
Divide the diameter by 2.
Step-by-step explanation:
Evan buys 2 CDs. $1.49 is added to the total price which is the 5% sales tax. What is the cost for each of the CDs?
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In the given question, there are several information's that are of great importance. It is by using these information's the correct answer can be determined. It is already given that the amount of sales tax is $1.49 and the percentage of sales tax is 5%. Now it is important to firstly determine the total price of 2 CDs and then determine the price of 1 CD. Let us assume that the cost of 2 CDs = x Then 5x/100 = 1.49 5x = 1.49 * 100 5x = 149 x = 149/5 = 29.8 So the cost of 2 CDs is $29.8. Now The cost of each CD = (29.8/2) dollars = 14.9 dollars So the cost of each CD is $14.9.