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Damm [24]
3 years ago
10

(x+2) (x-2)=? (n+m) (n-m)=? (r+9) ( r-9)=?

Mathematics
1 answer:
asambeis [7]3 years ago
8 0

Answer:

  1. (x+2) (x-2)=x^{2}-4

(n+m) (n-m)=n^{2} -m^{2}

  • (r+9) ( r-9)=r^{2}-81

Step-by-step explanation:

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Which improper fraction is equivalent to the number of puzzles Edna completed?
Damm [24]
The answer is b 14/3. 

Hope this helps!
8 0
3 years ago
Find two consecutive numbers whose squares differ by 33
stich3 [128]

Answer:

Two consecutive numbers whose squares differ by 33 are 16 and 17

Step-by-step explanation:

lets assume first number be x

since numbers are consecutive , so other number will be x + 1

From given information in question

(x + 1)² - x² = 33

⇒ (x² + 1² + 2x)  - x² = 33       [   since (a+b)² = a² + b² + 2ab ]

⇒ x² + 1² + 2x - x² = 33

⇒ 2x + 1 = 33

⇒ 2x = 33 - 1

⇒ x = 32/2 = 16

so one number is x = 16 and other number is x + 1 = 16 + 1 = 17

lets recheck our solution

17² - 16² = 289 - 256 = 33 , And since difference is 33 , two required consecutive numbers are 16 and 17.


3 0
4 years ago
PLEASE HELP ME OUT I NEED HELP ASAP!!!!!!!
jok3333 [9.3K]

Answer:

c

Step-by-step explanation:

when you add the same number to the previous number it forms a straight line

4 0
3 years ago
20 min to drive between two roads at average speed 45 mph how far apart is the town
Brrunno [24]
About 27 miles. It's 26.666666667
8 0
3 years ago
The first table that Cory designs will seat 8 people. If the diameter is 5 feet, what is the area?
Bumek [7]

d=2r, r = 2.5

A= πr2

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4 0
4 years ago
Read 2 more answers
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