2 years ago

Which equation has the correct sign on the product

Mathematics

2 answers:

Nata [24]2 years ago

7 0

C. Because c is makes more sense

Assoli18 [71]2 years ago

6 0

Answer:

The answer is C

Step-by-step explanation:

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How many roots does this has?<br>x^2+(2√5x)+2x=-10<br>find Discriminant

Alexxandr [17]

Given:

The equation is

$x^2+(2\sqrt{5})+2x=-10$

To find:

The number of roots and discriminant of the given equation.

Solution:

We have,

$x^2+(2\sqrt{5})x+2x=-10$

The highest degree of given equation is 2. So, the number of roots is also 2.

It can be written as

$x^2+(2\sqrt{5}+2)x+10=0$

Here, $a=1, b=(2\sqrt{5}+2), c=10$ .

Discriminant of the given equation is

$D=b^2-4ac$

$D=(2\sqrt{5}+2)^2-4(1)(10)$

$D=20+8\sqrt{5}+4-40$

$D=8\sqrt{5}-16$

$D\approx 1.89>0$

Since discriminant is $8\sqrt{5}-16\approx 1.89$ , which is greater than 0, therefore, the given equation has two distinct real roots.

3 0

2 years ago

¿Completa las tablas, anota la cantidad que falta para completar la cifra de la derecha.?

nalin [4]

Answer:

Lo siento. :(

Step-by-step explanation:

Me preguntaba lo mismo. Desearía poder ayudar, pero también necesito ayuda.

8 0

2 years ago

Add the followinf expresion<br>b. x- 3y + 4z , y – 2x- 8z ,5x – 2y – 3z

Mariana [72]

Answer:

4x - 4y - 7z

Step-by-step explanation:

x - 3y + 4z + y - 2x - 8z + 5x - 2y - 3z =

(x - 2x + 5x) + (y - 3y - 2y) + (4z - 8z - 3z) =

4x + (- 4y) + (-7z) =

4x - 4y - 7z <===

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2 years ago

Convert the following fraction to a decimal.

Nookie1986 [14]

I think it’s C but I could be wrong but I don’t think I am

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2 years ago

I dont know where the decimals go in this question-0.6÷0.0024

OLga [1]

The answer to that question is 250.

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2 years ago

Read 2 more answers