x^2 = -25
there is a solution if you know imaginary numbers
if you do not stop now and say no solution
else
take the square root
x = sqrt (-25)
x =sqrt(-1) sqrt(25)
x=+- 5i
x = 5i, -5i
x^2 =18
take the square root of each side
x =+-sqrt(18)
x=+- sqrt(9)sqrt(2)
x=+- 3sqrt(2)
x=3sqrt(2), -3sqrt(2)
The original price would be 190 because if you add 5 to 90 you get 95. 95 is half of the original price so you multiple 95 times 2 to get the original price.
Reapuesta: 8d = 80u
Tenemos que una decena equivale a 10 unidades.
Debemos multiplicar las 8 decenas por el valor de una sola decena.
8 decenas equivalen a 80 unidades.
Espero que te sirva, salu2!!!!
For this case we have an exponential function of the form:
Where,
- <em>A: the initial number of deer
</em>
- <em>b: rate of change
</em>
- <em>x: number of years
</em>
We then have the following function:
After three years we have:
Answer:
the population 3 years after beginning the study is 377.
Remember that the altitude of a triangle is the length of a segment which is perpendicular to the side opposed to a vertex and that passes through the vertex.
On the diagram, we can se that the segment AD is perpendicular to BC and passes through the point A. Therefore, AD is an altitude of the triangle.
