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bixtya [17]
3 years ago
12

Subtract 2/7a - 5/a^2

Mathematics
1 answer:
AlexFokin [52]3 years ago
4 0

Answer:

2a-5 over 6a^2.

Step-by-step explanation:

2/7a - 5/a^2. If you multiply 2/7a by a you can give them the same denominator and subtract them.

2a/7a^2 - 5/a^2.

2a-5 over 7a^2 - a^2.

2a-5 over 6a^2.

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Polynomial function in standard form with zeros 5,-4,1
Oksanka [162]

Answer:

\boxed{\sf \ \ \  x^3-2x^2-19x+20 \ \ \  }

Step-by-step explanation:

hello,

by definition we can write

(x-5)(x+4)(x-1)

as 5,-4,1 are the zeroes

now we have to write it in the standard form, let's do it

(x-5)(x+4)(x-1)=(x^2+4x-5x-20)(x-1)\\=(x^2-x-20)(x-1)=x^3-x^2-20x-x^2+x+20\\=x^3-2x^2-19x+20

hope this helps

5 0
3 years ago
Which on is the answer? Pls help
zheka24 [161]
Both is the answer to the problem
4 0
3 years ago
Read 2 more answers
The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of .4 minutes
Kazeer [188]

The  probability that an interaction lasts longer than 4 minutes is 0.0062.

<h3>What is probability theory?</h3>

probability theory in mathematics  focus on the  analysis of random phenomena and this theory let us know that the outcome of a random event cannot be determined before it occurs.

z = (4 - 3)/.4

z = 1/.4

z = 2.5

0.0062

Hence The  probability that an interaction lasts longer than 4 minutes is 0.0062.

Read more on the probability here:

brainly.com/question/3248965

#SPJ1

3 0
2 years ago
What is the distance between the points (-2,4) and (6,-4), rounded to the nearest tenth
jarptica [38.1K]

9514 1404 393

Answer:

  11.3 units

Step-by-step explanation:

The distance can be found using the distance formula:

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((6 -(-2))² +(-4-4)²) = √(8² +(-8)²) = √(64·2)

  d = 8√2 ≈ 11.3

The distance is approximately 11.3 units.

5 0
3 years ago
PLEASE HELP!!! I WILL GIVE BRAINLIEST!!!
stellarik [79]

Answer: all of the numbers that have x and the rest you can combine

Step-by-step explanation:

4 0
3 years ago
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