Answer:
D
Step-by-step explanation:
It is y=x^2 because the function you stated is a parabola/quadratic function. You can see that y = 5x^2 +3x + 5 can be made by multiplying D by 5, and adding 3x and 5. If a function has an x^2, y = x^2 is its parent function.
Answer:
0.4
Step-by-step explanation:
Multiply without the decimal points, then put the decimal point in the answer
2 has 0 decimal places
0.2 has decimal place
Therefore the answer has 1 decimal places
Answer:
100 is the next term
Step-by-step explanation: hope this helps
Answer:
Step-by-step explanation:
The depreciation of the value for a car is modeled by the equation y = 100,000(.85)^x for x years since 2000
a) for the value to be $61,412.50, then
61412.50 = 100000(.85)^x
61412.50/100000 = 0.85^x
0.614125 = 0.85^x
We would take log to base 10 of both sides. It becomes
Log 0.614125 = log 0.85^x =
x log0.85
- 0.2117 = x × - 0.07058
- 0.2117 = - 0.07058x
x = - 0.2117/- 0.07058
x = 3 years
b) 1/4 × 100000 = 25000
Therefore ,
25000 = 100000(.85)^x
25000/100000 = 0.85^x
0.25 = 0.85^x
We would take log to base 10 of both sides. It becomes
Log 0.25 = log 0.85^x =
x log0.85
- 0.602 = x × - 0.07058
- 0.602 = - 0.07058x
x = - 0.602/- 0.07058
x = 9 years
The first one !!!! Hope this helps