Answer:
Great speech!
Step-by-step explanation:
Answer: 49
Step-by-Step Explanation:
As we can see, we have been given a negative exponent for “x”. Hence we have to take the reciprocal which would be x squared.
Therefore, x = 7
= x^2 = 7 * 7
= 49
Given:
Investment (P) = $10000
Rate of interest (R) = 3.5%
Time (T) = 7 years
To find:
Amount in the account after 7 years
Solution:
Simple interest formula:




Simple interest = $2450
Amount = Investment + Interest
= 10000 + 2450
= 12450
Therefore $12,450 will be in the account after 7 years.
Answer:
6x-5=3x+10
6x-3x=10+5
3x=15
3x÷3=15÷3
x =5
Step-by-step explanation:
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Answer:
f(x)=x^2+3
f(x+y)=(x+y)^2+3
this is done by replacing x with (x+y)
f(x+y)=x^2+2xy+y^2+3
therefore : f(x+y)= x^2+y^2+2xy+3