Question

Simplify y= a ∙ (1 - 0.09) ^x

Answer 1

i have the answer

Answer 2

(3xy2 + 100) • (3xy2 - 100)
———————————————————————————
100

Answer 3

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "0.09" was replaced by "(09/100)".
Step by step solution :
Step 1 :

Raise y to the 4th power

Exponentiation :

Equation at the end of step 1 :

9
((——— • (x2)) • y4) - 100
100

Step 2 :

Raise x to the 2nd power

Exponentiation :

Equation at the end of step 2 :

9
((——— • x2) • y4) - 100
100

Step 3 :

9x2y4
Simplify ————— - 100
100

Rewriting the whole as an Equivalent Fraction :

3.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 100 as the denominator :

100 100 • 100
100 = ——— = —————————
1 100

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

9x2y4 - (100 • 100) 9x2y4 - 10000
——————————————————— = —————————————
100 100

Trying to factor as a Difference of Squares :

3.3 Factoring: 9x2y4 - 10000

Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2

Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 9 is the square of 3
Check : 10000 is the square of 100
Check : x2 is the square of x1

Check : y4 is the square of y2

Factorization is : (3xy2 + 100) • (3xy2 - 100)
Trying to factor as a Difference of Squares :

3.4 Factoring: 3xy2 - 100

Check : 3 is not a square !!

Ruling : Binomial can not be factored as the
difference of two perfect squares
Final result :

(3xy2 + 100) • (3xy2 - 100)
———————————————————————————
100

Answer 4

its an exponential function i dont think ur correct

Answer 5

(9/100)x2y4-100
Final result :

(3xyover2 + 100) • (3xyover2 - 100)
———————————————————————————
100

Answer 6

ok let me write it for you

Answer 7

understand now @babygirlang66666

Answer 8

?

Answer 9

thats not right it should be a deciaml

Answer 10

its an equation honey, you have to solve it.

Answer 11

well im not good at this, thats why im on here.. i have this last question for this project and i need to turn it in

Answer 12

so can u just simplify it for me

Answer 13

you have to understand that here we dont give you the answers we explain how to do it. OK? we dont do your homework honey, we help you.

Answer 14

i know... but idk how to do it

Answer 15

so if you dont know what 3xy2 + 100 is, pull out a calculator dear.

Answer 16

is this a multiple choice?

Answer 17

no ill show u the full question
hold on

Answer 18

b) You are in charge. By what percentage will you tell Greece to cut their spending? What is the decay factor?
9%

y= a ∙ (1 - 0.09) ^x
y= a ∙ (1 -
b=

Answer 19

it is 174.24

Answer 20

to the 1st question

Answer 21

ok?

Answer 22

thank you

Answer 23

no problem, can you click the best response button next to my comment?