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zzz [600]
3 years ago
15

Find the sum: (2x^2 + x + 3) + (3x^2 + 2x + 1)

Mathematics
1 answer:
Montano1993 [528]3 years ago
6 0

Answer:

5x^2 +  3x   +4

Step-by-step explanation:

(2x^2 + x + 3) + (3x^2 + 2x + 1)

Combine like terms

(2x^2 + 3x^2 + 2x+ x + 3 + 1)

5x^2 +  3x   +4

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What is the distance between the tick marks on the number line?
lora16 [44]

Answer:

1/5

Step-by-step explanation:

2 units divided into 5 marks each = 10 marks

2/10 = 1/5 unit each mark

4 0
2 years ago
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In an ellipse, the ratio of the distance between the foci and the length of the major axis is called:
Anni [7]

The ratio of the distance between the foci and the length of the <em>major</em> axis is called eccentricity.

<h3>Definitions of dimensions in ellipses</h3>

Dimensionally speaking, an ellipse is characterized by three variables:

  1. Length of the <em>major</em> semiaxis (a).
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  3. Distance between the foci and the center of the ellipse (c).

And there is the following relationship:

c = \sqrt{a^{2}-b^{2}} (1)

Another variable that measure how "similar" is an ellipse to a circle is the eccentricity (e), which is defined by the following formula:

e = \frac{c}{a}, 0 \ge c \ge 1 (2)

The greater the eccentricity, the more similar the ellipse to a circle.

Therefore, the ratio of the distance between the foci and the length of the <em>major</em> axis is called eccentricity. \blacksquare

To learn more on ellipses, we kindly invite to check this verified question: brainly.com/question/19507943

3 0
2 years ago
Pls help! will give brainlist!
Nataliya [291]

Answer:

(242) 969-0519

(338) 837-0798

(857) 705-0462

(251) 837-6638

(460) 208-1331

(412) 505-2184

Step-by-step explanation:

8 0
3 years ago
Please find the measure of each angle in the degrees!
konstantin123 [22]

Answer:

A》39°

B》91°

C》59°

Step-by-step explanation:

hope it helps

have a great day!!

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Sin 30Degrees = square of 3/2 and cos 30degrees =1/2 true or false
zhenek [66]

Answer:

False

Step-by-step explanation:

Trying it in a calculator says otherwise meaning it's false

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