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Lilit [14]
3 years ago
6

What is the factored form of m2 + - 27n2

Mathematics
1 answer:
Illusion [34]3 years ago
3 0
2(m-27n) this is the answer
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Noah is learning portugese, and he uses flash cards to study vocabulary. For every 5 new flash cards he practices, he reviews 10
tresset_1 [31]
<h3>Answer:  15</h3>

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

Explanation:

n = number of new flash cards practiced

2n = number of old flash cards practiced

The 2n is due to the fact that the number of old flash cards is double that of the new ones (eg: 10 is twice that of 5).

The two expressions must add to 45.

new + old = total

n + 2n = 45

3n = 45

n = 45/3

n = 15

2n = 2*15 = 30

Noah practiced 15 new flash cards and 30 old flashcards which is a total of 15+30 = 45. This confirms our answer.

Also note that the ratio of new to old is 15:30 which reduces to 1:2, then we can multiply both sides by 5 to get 5:10. This effectively shows that 15:30 and 5:10 are the same equivalent ratio (just in different forms). This helps confirm our answer.

7 0
3 years ago
Which function is graphed below?? TIMED HELP
nadezda [96]
That's the cosine x.  The cosine of 0 is 1, so that's how you can tell.  The sin of 0 is 0, so that's where the sin graph goes through the y axis
6 0
3 years ago
Find the measure of each interior angle of a regular polygon with the following number of sides 10​
mina [271]

Answer:

a regular polygon has all angles measure sum up to 360 degrees so each interior angle = sum of alll angles/no.of sides so it is 360/10= 36 degrees hope its clear now

Step-by-step explanation:

8 0
3 years ago
Evaluate 6t-2p-32u when t=6 and u = 1/46t - 20 - 32u when t = 6 and u = 1/4
Butoxors [25]

Answer:

8

Step-by-step explanation:

6(6)-20-32(1/4)

36-20-8

16-8

8

7 0
3 years ago
Which scale is equivalent to 1 cm to 1 km?
AfilCa [17]

Answer:

1 to 100,000

Step-by-step explanation:

Centimeters and kilometers are scales of the official unit of length in the SI, the meters.

In a meter there are 100 centimeters, and in a kilometer there are 1000 meters, so in a kilometer there are 1000(100)cm ⇒ 100,000cm

So the scale of 1 centimeter to 1 kilometer is:

1 to 100,000

4 0
3 years ago
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