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IgorLugansk [536]
4 years ago
13

Factor the polynomial below. 30x^2 + 15x^2 +10x

Mathematics
2 answers:
Gnesinka [82]4 years ago
5 0
45x^2+10x

hope this helps!
balandron [24]4 years ago
3 0
5x ( 6x + 3x + 2)

hope this helps
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The map below shows the path that Jin walked this morning. According to his pedometer, the total distance of this path was 2.3 k
max2010maxim [7]

Answer:

5 centimetres = 1 kilometre

Step-by-step explanation:

First add up the distances measured on the map.

1.1+4.8+2.2+3.4=11.5 cm

Based on this, since the number of cm is greater than the number of km, we can figure out that each cm should not be multiplied to get the km, so we can eliminate the first two answers.

Next write an equation to represent finding the scale

x=scale

11.5=2.3x

Now solve for the scale

11.5/2.3=2.3x/2.3

5=x

Therefore the scale is 5 centimetres = 1 kilometre

6 0
3 years ago
A line is drawn on a coordinate grid by the equation y = 1. Which of the following lines would represent a row perpendicular to
DaniilM [7]
The answer is b I think
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3 years ago
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8 0
3 years ago
The sum of fifteen and six times a number t is 81
Over [174]
Well the sum is 15+6=21. then you must do 81-21=60. So your answer must be t=60.
4 0
3 years ago
Read 2 more answers
2) Find the 10th term of the Harmonic progression, <br><br>1/2,1/4,1/6............. 10th term<br>​
Gemiola [76]
<h3>Answer:  1/20</h3>

========================================================

Explanation:

The denominators 2, 4, 6, ... are in an arithmetic progression

  • first term = 2
  • common difference = 2

We have the multiples of 2.

  • first denominator = 1*2 = 2
  • second denominator = 2*2 = 4
  • third denominator = 3*2 = 6

And so on.

The tenth denominator is 10*2 = 20

Therefore, the tenth term of the harmonic progression is 1/20

---------

Side note:

An arithmetic progression is of the form a, a+d, a+2d, a+3d, \ldots

A harmonic progression is of the form \frac{1}{a}, \frac{1}{a+d}, \frac{1}{a+2d}, \frac{1}{a+3d}, \ldots

I.e. take the reciprocal of the arithmetic sequence to get the harmonic sequence, or vice versa.

8 0
2 years ago
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