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3 years ago

How many solutions does the system have?

Mathematics

1 answer:

nikdorinn [45]3 years ago

5 0

Answer:

none

Step-by-step explanation:

there is no solutions to this system

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Will give brainliest to the first person who answers

alexandr402 [8]

Answer:

z =86

Step-by-step explanation:

The exterior angle of a triangle is the sum of the opposite interior angles

z + z-39 = z+47

2z-39 = z+47

Subtract z from each side

z-39 = 47

Add 39 from each side

z = 47+39

z =86

7 0

3 years ago

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Given B=45°, C=105°, and a=8, find the exact value of b in triangle ABC

Veronika [31]

Answer:

hope the screenshot will help

Step-by-step explanation:

7 0

3 years ago

Simplify

IRINA_888 [86]

Answer:

Final answer is ---> -4

Step-by-step explanation:

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3 years ago

How many real solutions if any, does 2x^2-3x+8=0

fenix001 [56]

Answer:

The quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ has no real solution.

Step-by-step explanation:

Rewrite the quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ in the standard form $a\, x^{2} + b\, x + c = 0$ :

$2\, x^{2} + (-3)\, x + 8 = 0$ , for which:

$a = 2$ .
$b = (-3)$ .
$c = 8$ .

The quadratic discriminant of $a\, x^{2} + b\, x + c = 0$ is $(b^{2} - 4\, a\, c)$ . The quadratic discriminant of $2\, x^{2} + (-3)\, x + 8 = 0$ would be:

$\begin{aligned}& b^{2} - 4\, a\, c \\ =\; & (-3)^{2} - 4 \times 2 \times 8 \\ =\; & (-55)\end{aligned}$ .

Since the quadratic discriminant of this equation is negative, this quadratic equation has no real solution.

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2 years ago

10 points Please help no Explanation needed A B C D

uysha [10]

Answer:

B * The sign stays the same *

Step-by-step explanation:

Hope this helped, Have a Wonderful Day

6 0

3 years ago

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