2 years ago

Solve the following equation: 3 x squared = negative 12 a. x = 2 b. x = negative 2 c. No real solutions d. x = plus-or-minus 2

Mathematics

1 answer:

joja [24]2 years ago

5 0

No real solution trust me

You might be interested in

Help with 10 and 11 please!

Nady [450]

23/50 * 2 = 46/100

11/20 * 5 = 55/100

Hope this helps! :D

7 0

3 years ago

Complete the equation ,287x6=25, 2

fomenos

The complete control is 1267

6 0

3 years ago

Which equation describes a line that passes through (-5,-8) and is perpendicular to y= 5/4x + 10

lara31 [8.8K]

Answer: y = -4/5x - 12

1. First find slope. Since you are trying to find a line perpendicular to y = 5/4x + 10, the slope would be the negative reciprocal of 5/4x.

slope = - 4/5x

2. plug in (-5,-8) and the slope of -4/5 to the point slope form equation
(y-y2) = slope (x-x2)

= y+8=-4/5(x+5)

3. solve and simply y+8=-4/5(x+5)

y = -4/5x - 12 is your answer

8 0

3 years ago

The sum of a number and its reciprocal is 41/20. Find the number. smaller value larger value

Natali [406]

Step-by-step explanation:

Let the number is x. Its reciprocal will be 1/x. According to given condition, we get :

$x+\dfrac{1}{x}=\dfrac{41}{20}\\\\\dfrac{x^2+1}{x}=\dfrac{41}{20}\\\\20x^2+20=41x\\\\20x^2-41x+20=0$

It is a quadratic equation. The values of x are :

$20x^2-25x - 16x+ 20 =0\\\\5x(4x - 5) -4( 4x - 5) = 0\\\\(5x-4)(4x-5)=0\\\\5x-4=0\ \text{and}\ (4x-5)=0\\\\x=\dfrac{4}{5}\ \text{and}\ x=\dfrac{5}{4}$

The smaller number is 4/5 and the larger number is 5/4.

6 0

3 years ago

One side of a regular pentagon measures 0.8 M what is the perimeter of the regular pentagon

sergejj [24]

Answer:

Step-by-step explanation:

0.8x5=4

7 0

3 years ago