3 years ago

Porfa es pa hoy les doy 26 puntos

Mathematics

2 answers:

ladessa [460]3 years ago

8 0

No puedo mirar las preguntas que están enseñando en la foto

aliina [53]3 years ago

6 0

hola como esta no veo bien las preguntas

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Solve the equation by factoring. z2 − 6z − 27 = 0

Lisa [10]

Answer:

The answer is x= 9 and -3

You must fine 2 number that multiply to equal -27 and add to equal -6

(x-9) (x+3)

Then equal the parts of the binomial to zero

x - 9 = 0

x + 3 = 0

You must get x by its self.

When you do so, you'll have the answer as -3 and 9

Step-by-step explanation:

4 0

3 years ago

In the accompanying diagram of parallelogram ABCD, LaTeX: m\angle A=2x+15 m ∠ A = 2 x + 15 and LaTeX: m\angle B=x m ∠ B = x . Fi

Margarita [4]

Answer:
x = 55

Explanation:
In a parallelogram, the sum of each two consecutive angles is 180°.

In the given parallelogram ABCD, we can note that angles A and B are consecutive angles. This means that their summation is 180°

Therefore:
∠A + ∠B = 180
2x + 15 + x = 180
3x + 15 = 180
3x = 180 - 15
3x = 165
x = 165 / 3
x = 55

Now we can check:
angle A = 2(55) + 15 = 125°
angle B = 55°
angle A + angle B = 125 + 55 = 180°

Hope this helps :)