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3 years ago

Find the sum of the integers (-12)+7

Mathematics

2 answers:

Alex73 [517]3 years ago

8 0

Answer:

<h2>The answer will be -5</h2>

Step-by-step explanation:

Hope this helped...

Fynjy0 [20]3 years ago

6 0

Answer:

-5 is the answer Very easy

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9/20

Stella [2.4K]

Question:

Find the number of real number solutions for the equation. x^2 + 5x + 7 = 0

Answer:

The number of real solutions for the equation $x^{2}+5 x+7=0$ is zero

Solution:

For a Quadratic Equation of form : $a x^{2}+b x+c=0$ ---- eqn 1

The solution is $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Now , the given Quadratic Equation is $x^{2}+5 x+7=0$ ---- eqn 2

On comparing Equation (1) and Equation(2), we get

a = 1 , b = 5 and c = 7

In $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$ , $b^2 - 4ac$ is called the discriminant of the quadratic equation

Its value determines the nature of roots

Now, here are the rules with discriminants:

1) D > 0; there are 2 real solutions in the equation

2) D = 0; there is 1 real solution in the equation

3) D < 0; there are no real solutions in the equation

Now let solve for given equation

$D= b^2 - 4ac\\\\D = 5^2 - 4(1)(7)\\\\D = 25 - 28 \\\\D = -3$

Since -3 is less than 0, this means that there are 0 real solutions in this equation.

4 0

4 years ago

Point A is plotted at (-5, 3)

Diano4ka-milaya [45]

Answer:

quadrant 1

Step-by-step explanation:

quadrant 1 is (-,+)

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3 years ago

Which is the equation of a line that has a slope of and passes through point (–3, –1)?

Leno4ka [110]

There's no slope, so it's impossible to answer your question. I'm sorry.

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3 years ago

If John has an apple, an orange, a pear, a banana, and a kiwi at home and he wants to bring two fruits for lunch, how many diffe

SVEN [57.7K]

Answer:

Step-by-step explanation:

5 choose 2 is 5x4/2, which is 20/2, which is 10.

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3 years ago

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12345 [234]

Is the equation 02.03 ??

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3 years ago