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Bogdan [553]
3 years ago
10

Line d is parallel to line c in the figure below Which statements about the figure are true? Select three options

Mathematics
1 answer:
Marianna [84]3 years ago
4 0
Line d and c are bother parallel but the three options would be them
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Sketch the line passing through the pair of points and identify the line as having a positive slope, a negative slope, a zero sl
scoundrel [369]

Answer:

line will be horizontal running through (0,2)

Step-by-step explanation:

6,2
1,2
2-2/1-6 = 0/-5 = 0 slope. 2 = 0x6+b, 2=b. line will be y=b , y=2.

5 0
2 years ago
How to solve 2x+5 if x equals 7
tatuchka [14]

Answer:

2(7) + 5 = 19

Step-by-step explanation:

Okay, so do it like this:

2x+5

x = 7

2(7) + 5

2(7) = 2 x 7

2 x 7 = 14

Now it's 14 + 5

14 + 5 = 19

Your answer is 2(7) + 5 = 19

6 0
2 years ago
Dentro de 11 años, la edad de Federico será la mitad del cuadrado de la que tenía hace 13 años. Calcula la edad de Federico.
Bad White [126]

Plantearemos una ecuación cuadratica, y resolviendola veremos que Federico tiene 21 años.

<h3>¿Como plantear la ecuación que debemos resolver?</h3>

Lo primero que debemos hacer es definir la variable que vamos a usar, en este caso usare:

F = edad de Federico.

Dentro de 11 años, la edad de Federico será:

F + 11

Hace 13 años, la edad de Federico era:

F - 13

Reemplazando eso en lo que el problema plantea, tenemos:

(F + 11) = 0.5*(F - 13)^2

Ahora podemos resolver esto para F.

F + 11  = 0.5*(F^2 - 26*F +169)

F + 11 = 0.5*F^2 - 13*F + 84.5

Movemos todo al mismo lado:

F + 11 - 0.5*F^2 + 13*F - 84.5 = 0

-0.5*F^2 + 14*F - 73.5 = 0

Ahora tenemos una ecuación cuadratica, la cual resolvemos usando la formula de Bhaskara:

F = \frac{-14 \pm \sqrt{(14)^2 - 4*(-0.5)*(-73.5)} }{2*(-0.5)}  =\frac{-14 \pm 7}{-1}

Esto nos da dos valores:

  • F = (-14 + 7)/-1 = 7
  • F = (-14 - 7)/-1 = 21

El problema con el primer valor, es que es inconsistente con el enunciado, ya que en ese caso, Federico hace 13 años tendría una edad negativa. Así que <u>descartamos la primer solución</u> y nos quedamos con la segunda.

F = 21

Federico tiene 21 años.

Sí quieres aprender más sobre ecuaciones cuadraticas, puedes leer:

brainly.com/question/17102578

7 0
2 years ago
How would I solve questions 22 &amp; 23?
frosja888 [35]
In a parallelogram, adjacent angles make 180°

So in 22

11x + 11 + 70 = 180
11x = 99
x = 9

In 23

12x + 10 + 50 = 180
12x = 120
x = 10
5 0
3 years ago
I need help on finding the % increase from 40 to 66...
disa [49]
So assuming that 40=100%
66=x%
so
40 and 66
divide by 2
20 and 33
multiply by 5
100 and 165
so 100 is 100% and 165=165%
165-100=65
it is a 65% increase
5 0
2 years ago
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