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-BARSIC- [3]
3 years ago
5

Solve for all values of x by factoring. x^2-9=0

Mathematics
2 answers:
lesya [120]3 years ago
6 0

Answer:

x = 3, -3 is the answer i got, hope this helps!

Step-by-step explanation:

leonid [27]3 years ago
5 0
X^2-9=0
both square numbers
(x-3)(x+3)=0

x-3=0
x=3

x+3=0
x=-3
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3 years ago
A piece of card, 1200 cm² in area, will make a tube 13 cm long. How long is a similar
Tema [17]

The length of the similar tube will be 5041 cm.

<h3>What is the area?</h3>

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the circle in a two-dimensional plane is called the area of the circle.

Given that:-

  • A piece of card, 1200 cm² in area, will make a tube 13 cm long. How long is a similar?
  • Tube made from a similar piece of card with an area of 500square centimetres.

The radius of the first tube will be calculated as:-

1200 = 2πr ( 13 )

r = 12 / 2π x 113

r = 14.7 cm

Now the length of the second tube will be:-

500 = 2π x 14.7 x L

L = 500 / 2π x 14.7

L = 5.41 cm.

Therefore the length of a similar tube will be 5041 cm.

To know more about an area follow

brainly.com/question/25292087

#SPJ1

3 0
2 years ago
One positive number is one-fifth of another number the difference between the two numbers is 180 find the numbers
Mrac [35]

9514 1404 393

Answer:

  45 and 225

Step-by-step explanation:

Let x represent the larger number. Then ...

  x - 1/5x = 180

  x = 5/4(180) = 225

  1/5x = 45

The two numbers are 45 and 225.

3 0
3 years ago
(WILL GIVE BRAINLIEST!) <br>Find the distance d(A,B) between points A and B. <br>A(1,-6); B(1,6)
Schach [20]

Answer:

12

Step-by-step explanation:

Since the x values are the same, we only have to look at the difference between the y values

6 - -6

6+6

12

The distance is 12

5 0
3 years ago
Read 2 more answers
S is a geometric sequence.
TiliK225 [7]

Answer: your answer would be 2

Step-by-step explanation:

6 0
3 years ago
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