Answer:
Step-by-step explanation:
Si en la pantalla aparecen esos numeros entonces tenes que hacer alguna calculacion para que aparezcan los siguentes numeros indicados. Para cada opcion necesitas apretar las sigientes teclas que aparacen en negro...
0.572 - 0.447 = 0.125
0.572 - 0.194 = 0.378
0.572 + 0.307 = 0.879
0.572 - 0.116 = 0.456
0.572 + 0.428 = 1
Answer:
Below in bold.
Step-by-step explanation:
y = -4x2 + 8x - 13
Divide first 2 terms by -4:-
y = -4(x^2 - 2x) - 13
Convert to vertex form by completing the square:
y = -4[(x - 1)^2 - 1] - 13
y = -4(x - 1)^2 + 4 - 13
y = -4(x - 1)^2 - 9 <---------- Vertex form
y = a(x - j)^2 + k <---------- General form with vertex = (j, k).
So comparing, we see that the vertex is (1, -9).
The answer is y = -1/3x + 2
Because the y intersect is located at (0,2) we know that the b value in the formula y=mx + b is 2 and using rise over run we determine the slope to be -1/3
Answer: x= 5/7 or x= 0.714285
Step-by-step explanation:
Answer:
600 at 3%
700 at 4%
1700 at 5%
Step-by-step explanation:
let x= amount invested at 3%
y= amount invested at 4%
z= amount invested at 5%
equation 1: x+y+z= 3000
Equation 2: .03x+.04y+.05z= 131
Equation 3: z=y+1000
Substitute equation 3 into equation 1
x+y+(y+1000)= 3000
x+2y=2000 (equation 4)
Substitute equation 3 into equation 2
.03x+.04y+.05(y+1000)=131
.03x+.04y+.05y+50=131
.03x+.09y= 81 (equation 5)
Mulitply equation 4 by .03
.03x+.06y=60
Subtract this from equation 5
(.03x+.09y)-(.03x+.06y)=81-60
.03y=21
y=700
Plug y=700 into equation 4
x+2(700)=2000
x= 600
Plug x= 600 and y=700 into equation 1
600+700+z=3000
z= 1700