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densk [106]
3 years ago
13

What is square root 28 in simplified radical form

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

The answer to your question is 28 =  2\sqrt{7}

Step-by-step explanation:

Data

square \sqrt{28}

Process

1.- Find the prime factor of 28

                            28 2

                              14 2

                                7 7

                                  1

         28 = 2 x 2 x 7   or 28 = 2² x 7

2.- Write the prime factors inside the square root

                        \sqrt{2^{2}7}

3.- Express the square root as fractional powers

                         2²/² 7¹/²

4.- Simplify

                        2 7¹/²

5.- Express 7¹/² as square root

        result         2\sqrt{7}

   

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The are of a shaded region is 118 ft squared. Which equation can be- used to find the value of X, in feet?
Triss [41]

Answer:

x^2+ 18x -130=0

Step-by-step explanation:

Given

See attachment for diagram

Required

The equation to find x

First, calculate the area of the big rectangle using:

Area = Length * Width

So:

A_1 = (x + 6) * (3x - 2)

The smaller rectangle

A_2 = (x - 1) * (2x)

The difference between this areas give the area of the shaded region.

So:

A_1 - A_1 = 118

(x+6)*(3x-2) - (x-1)*2x = 118

Open brackets

3x^2 - 2x + 18x -12 -2x^2 +2x = 118

Collect like terms

3x^2 -2x^2- 2x +2x+ 18x -12   - 118=0

x^2+ 18x -130=0

<em>The above equation can be used to solve for x</em>

4 0
3 years ago
What are the following factors of x² - 6x +8
d1i1m1o1n [39]

Answer:

2) 4,2

Step-by-step explanation:

<u>Factor by grouping:</u>

x^2-6x+8\\\\x^2-4x-2x+8\\\\x(x-4)-2(x-4)\\\\(x-2)(x-4)

Setting the expression equal to 0 and using the Zero Product Property, x=2 and x=4, which are the factors of the original polynomial.

3 0
2 years ago
Read 2 more answers
1.
zhuklara [117]

Answer:

C

Step-by-step explanation:

We know that the value of 1 is 4,

So, there are 2 difference,

1 is 4

2 is 6

3 is 8

4 is 10

5 is 12

So, the first five terms is 4, 6 ,8 ,10, 12.

6 0
3 years ago
A. There is no solution, and it is shown by region B
solong [7]

Answer:

A

Step-by-step explanation:

7 0
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Answer: y=-x+8

Step-by-step explanation:

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