Answer:
7
Step-by-step explanation:
28x7=196
196=14^2 aka a perfect square
Answer:
D. The speed of light
Step-by-step explanation:
The speed of light is extremely fast at 299,792,458 m / s. This would be better to look at in scientific notation:
3.00 x 108 m/s.
It is x^2-2x-9 since u just subtract both equations
X=4
Explanation
First subtract 4x^2 + 6x from both sides of the equation
X^2 - 8x + 16 = 0
Then let’s factorice the equation using the middle-term break:
x^2 - 4x - 4x + 16 = 0
x (x - 4) - 4 (x - 4) = 0
(x - 4) (x - 4) = 0
(x - 4) ^2 = 0
x = 0
Therefore the solution to the equation is x = 4
The interest is 3.5 percent or 3 percents of the sum she deposited.