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hodyreva [135]
3 years ago
12

What is the solution to 2x2+x+2=0

Mathematics
2 answers:
nikitadnepr [17]3 years ago
8 0

2x^2 + x + 2 = 0

x = \dfrac{1}{8}(-1 \pm \sqrt{1- 4(2)(2)})= \dfrac{-1 \pm \sqrt{-15}}{8}

x = \dfrac{-1 \pm i\sqrt{15}}{8}

Two solutions, complex conjugates.

lilavasa [31]3 years ago
8 0
2x2 =4, so now we have 4+x+2=0. then add 4 + 2, now we have 6+x=0. move the six over the other side of the x now we have the answer x = -6
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-5(6x+3y-1)<br> Simplify
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Answer:

-30x+15y+5 is the simplified answer

7 0
3 years ago
Drag each statement to the correct location on the flowchart. Not all statements will be used.
Monica [59]

The information to fill one the box regarding the proof include:

  • AB = CD
  • AD = CB
  • BD is common to both triangles

<h3>How to illustrate the proof?</h3>

It should be noted that when two triangles of each corresponding sides are equal, then it's said that they are similar.

Here AB = CD, and AD = CB as they illustrate the fact that they are parallel.

Learn more about flowchart proof on:

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7 0
2 years ago
The owner of a small store buys coats for ​$55.00 each. Answer parts a and b. a. She sells the coats for ​$99.00 each. What perc
scoundrel [369]

Answer:

180% ; 5

Step-by-step explanation:

Purchase price per coat = 55

Sales price per coat = 99

% of purchase price is sales price :

X% * 55 = 99

(x / 100) * 55 = 99

0.01x * 55 = 99

0.55x = 99

x = 99 / 0.55

x = 180

180% of purchase price

B.)

180% * 45 = 81 per jacket

Number of jackets to sell to make atleast $390 in sales

$390 / $81 = 4.8

Hence, 5 jackets

3 0
3 years ago
Write an inequality for the following situation:
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3 years ago
The descriptive statistics are shown.
Cloud [144]

The median is always at the center of the box, we can say the median of our question is also at the middle of the box.

<h3>What is a graph?</h3>

A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.

The description of the measures given has been done below and also what they indicate about the shape of the box and whisker plot have been given.

From the given data we see that;

Mean = 39,500

Median = 20000

Mode = 23000

Minimum = 15,000

Maximum = 255000

A general view of a box and whisker plot has been attached.

From the attached file, we can see the following;

- whiskers to the left and right of the box.

- The box starts from the lower quartile and stops at the upper quartile.

- The median is at the middle of the box

- The minimum is at the end of the left whisker

- The maximum is at the end of the right whisker.

1) Now, since median is always at the center of the box, we can say the median of our question is also at the middle of the box.

2) The median is 20000 but the minimum which is the end of the left whisker is 15000 while the maximum which is the end of the right whisker is 255000. This means the minimum is very close to the median and as such the left whisker would be very short. In contrast, the right whisker will be very long since the maximum is far larger than the median.

3) Since the right whisker is far larger than the left whisker, then we can say the shape of the box and whisker plot is heavily skewed to the right.

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5 0
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