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3 years ago

Factor this expression completely. 6x^2- 13x - 28

Mathematics

2 answers:

wlad13 [49]3 years ago

7 0

Answer:

this is the solution

(2−7)(3+4)

Step-by-step explanation:

Mnenie [13.5K]3 years ago

5 0

Answer:

(X+1)(6x-21)

Step-by-step explanation:

6x^2- 13x - 28

6x^2-(21-6)x-28

6x^2-21x+6x-28

X(6x-21)+1(6x-21)

(X+1)(6x-21)

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Gabriella swims 2 laps per minute. What is the associated rate? ___ minute per lap

Leokris [45]

Answer:

The answer is D.

Step-by-step explanation:

It is given that Gabriella swims 2 laps for 1 minute. So in order to find how many minutes did he swim for each lap, you have to divide it by 2 :

2 laps = 1 minute

2 laps ÷ 2 = 1 minute ÷ 2

1 lap = 1/2 minute

= 30 seconds

Test :

Gabriella swim 1/2 min per lap. So if he swim 2 laps, you have to multiply it by 2 :

1/2 × 2 = 1 minute

7 0

3 years ago

Read 2 more answers

Please help me solve this 200(20)^x>500x+400

s2008m [1.1K]

Hi there!

200(20)^x > 500x + 400

Let's find the critical points of the inequality

200(20^x) = 500x + 400

Now we can divide both sides by 200

(200(20^x))/200 = (500x + 400)/200

20x^x = 5/2 x + 2

There are no critical points.

Thus,

The answer is: No solution

As always, it is my pleasure to help students like you.

6 0

3 years ago

Which of the following best describes a semi-regular tessellation?A. It uses circles and polygons.B. It uses more than one type

Tanya [424]

I would say it is B sorry if im wrong :(

7 0

3 years ago

Read 2 more answers

Can anyone help me pls ( if you can, can you do it on paper and post it with the answer)

Margaret [11]

<h2>Answer: x = 6</h2>

* = things that have changed or are being changed

<h2>Explanation:</h2>

1. rearrange terms

*4 4 + 3 * = 5 + 2 + 2 0

*3x + 44* = 5x + 2 + 20

2. combine like terms

3 + 44 = *5x + 2* + 20

3 + 44 = *7x* + 20

3. Subtract 4 4 from both sides of the equation

3x + 44 = 7x + 20

3x + 44 *-44* = 7x + 20 *-44*

4. Simplify

(Subtract the numbers)

3x + *44 - 44* = 7x + 20 - 44

3x = 7x + 20 - 44

(Again)

3x = 7x + 20 *- 44*

3x = 7x - 24

5. Subtract 7 from both sides of the equation

3x = 7x - 24

3x *- 7x* = 7x - 24 *- 7x*

6. Combine like terms

*3x - 7x* = 7x - 24 - 7x

*-4x* = 7x - 24 - 7x

(Again)

-4x = *7x* - 24 *- 7x*

-4x = - 24

7. Divide both sides of the equation by the same term

-4x = - 24

$\frac{-4x}{*-4*} = \frac{-24}{*-4*}$

8. Simplify

(Cancel terms that are in both the numerator and denominator)

$* \frac{-4x}{-4} * = \frac{-24}{-4}$

*x* = $\frac{-24}{-4}$

(Divide the numbers)

x = $\frac{-24}{-4}$

x = 6

5 0

3 years ago

QUESTION 1

Ad libitum [116K]

C would be positive

5 0

3 years ago