Answer:
x = -5/2 , 5/2
Step-by-step explanation:
x^ -2 = 4/25
negative exponents means flip from numerator to denominator ( or vice versa)
(1/x) ^2 = 4/25
take the square root of each side (remember you get a positive and negative result)
sqrt(1/x) = sqrt(4/25)
1/x = + 2/5 1/x = -2/5
multiply each side by x
1 = + 2/5 x 1 = -2/5 x
multiply by 5/2 multiply by -5/2
5/2 = + 2/5 x * 5/2 -5/2 = -2/5 x *- 5/2
5/2 = + x -5/2 = x
x = 5/2 , -5/2
After the second, it will be 50, after the third it will be 20, and after the fourth it will be 8. The answer is C
Hope this helps!
Answer:
The tables show the relationships between x and y for two data sets.
Which statements describe the relationships between x and y in Data Set I and Data Set II?
Both data sets show additive relationships.
In Data Set I, y is 5.5 more than x , and in Data Set II, y is 5 more than x .
Data Set I shows a multiplicative relationship in which y is 5.5 times x .
Data Set II shows an additive relationship in which y is 20 more than x .
Both data sets show multiplicative relationships.
In Data Set I, y is 5.5 times x, and in Data Set II, y is 5 times x .
Data Set I shows an additive relationship in which y is 4.5 more than x .
Data Set II shows a multiplicative
Step-by-step explanation:
Here's the equation:
0.90(5.99) + 0.04(0.9(5.99))
We can simplify this:
0.90(5.99) + 0.036(5.99)
5.391 + 0.21564
5.60664
We can round:
It will cost about $5.61