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Minchanka [31]
3 years ago
5

What is the solution to 3x²+x+10=0

Mathematics
1 answer:
e-lub [12.9K]3 years ago
7 0

Answer:

x = - 1/6 + √-119/6, and, - 1/6 - √-119/6

Step-by-step explanation:

Using the quadratic formula which is: - b ± √b² - 4ac / 2a

a = 3, b = 1, c = 10

- 1 ± √1² -4 * 3 * 10 / 2 * 3

- 1 ± √1 - 120 / 6

-1 ± √-119 / 6

= -1/6 + √119/6,               or                  - 1/6 - √-119/6

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How do you decide by which power of 10 to multiply an equation when writing a decimal with repeating digits as a fraction?
Soloha48 [4]

For the repeating fraction, It depends on the denominator as which power of 10 is the nearest factor of denominator.

According to the statement

we have to find that the power of 10 which is multiply the equation by which writing a decimal with repeating digits as a fraction.

So, For this purpose, we know that the

Fraction is a number expressed as a quotient, in which a numerator is divided by a denominator. In a simple fraction, both are integers.

So, From the given information:

To decide the power of 10 to multiply an equation with repeating digits ; Round the equation to the required significant numbers.

when the numerator of an equation is divided by the denominator and the result is not a whole number ( i.e. number with some decimals)and sometimes the decimal places are unending. to present the result properly we have to round off the number to the nearest significant number, then you can multiply  the equation with the power of 10, in relation to the number of significant places you rounded off.

Example :

5/200 = 0.025

To express this answer with the power of 10

0.025 = 2.5 * 10^-2

Here the power of 10 is -2.

So, For the repeating fraction, It depends on the denominator as which power of 10 is the nearest factor of denominator.

Learn more about fraction here

brainly.com/question/1622425

#SPJ1

6 0
2 years ago
What property is 6+4+2​
oksian1 [2.3K]

Answer:

Distributive property

Step-by-step explanation: This is distributive property because 4+2 equals six. you are distributing four and 2 to equal 6

8 0
3 years ago
As an artist, Ernest is doing a solo show titled CUBES. One of his pieces is shown below. Each layer of the piece is a cube. The
mariarad [96]

Answer:

The total surface area of the cube, including the bottom is

22 m squared.

Step-by-step explanation:

a) Data and Calculations:

Side length = 3 m

Side height = 2 m

Side width = 1 m

The total surface area of the cube, including the bottom is given by the formula, 2lw+2lh+2hw), where l = length, w = width, and h = height.

This can also be rewritten as:

2(l*w + l*h + h*w)

= 2 (3*1 + 3*2 + 2*1)

= 2 (3 + 6 + 2)

= 2 (11)

= 22

b) Ernst should know that the surface area of a cube is the sum of the areas of all faces (or surfaces) because it is a 3D shape.  Since the cuboid has 6 rectangular faces, Ernest can determine the surface area by adding the areas of all 6 faces or surfaces.  Similarly, he can label the length as (l), width as (w), and height as (h) and use the formula, SA=2lw+2lh+2hw, to find the surface area.  This formula can also be rewritten as 2(l*w + l*h + h*w).

4 0
3 years ago
ZA and ZB are supplementary angles. The measure of ZA is three time the measure of ZB.
Fittoniya [83]

Answer:

A. ZA+ZB =180

B. ZA is 135 and ZB is 45

Step-by-step explanation:since ZA and ZB are supplementary

ZA+Zb =180°

But ZA=3ZB

∴ 3ZB+ZB=180° ⇒4ZB=180°

∴ZB =45

5 0
3 years ago
Best Answer Gets Brainliest
Zarrin [17]

Step-by-step explanation:

area of Triangle = (20 -9) (6) (1/2) = 33 in ^ 2

area of rectangular = 20 x 9.5 = 190 in ^2

total = 223 in ^2

5 0
3 years ago
Read 2 more answers
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