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Dovator [93]
3 years ago
5

Solve for(x-4)(x+4)=

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

x^2-16

Step-by-step explanation:

x^2-4^2

x^2-16

difference of squares

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What is the solution to the equation 2 (x-3) ^2 =13 help help ASAP !
olganol [36]

Answer:

3+sqrt(13/2)

3-sqrt(13/2)

Step-by-step explanation:

2 (x-3) ^2 =13

Divide each side by 2

2/2 (x-3) ^2 =13/2

(x-3) ^2 =13/2

Take the square root of each side

sqrt((x-3) ^2) =±sqrt(13/2)

x-3 = ±sqrt(13/2)

Add 3 to each side

x-3+3 = 3±sqrt(13/2)

x = 3±sqrt(13/2)

4 0
3 years ago
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If a boy has 4 pairs of shorts, 8 shirts, and 2 pairs of shoes, how many different outfits could he wear?
sveta [45]

Answer:

64

Step-by-step explanation:

I paired the first shirt with all of the pants and both shoes which was 8 outfits, but here are 8 other shirts which will also make 8 outfits.

4 0
3 years ago
The perimeter of a rectangular garden is 40 it. The length is 2 ft more than the width. Find the length and the width of the gar
alexgriva [62]

Answer: Length = 11

              Width = 9

Step-by-step explanation:

Let x represent the unknown length.

Let x - 2 represent the unknown width.

The perimeter is equal to 2 times x + (x -2)

Equation:

2 (x + (x - 2)) = 40

x + (x - 2) = 40/2

x + x - 2 = 20

2x - 2 = 20

2x -2 + 2 = 20 + 2

The length is: 2x = 22 -> x = 22/2 -> x = 11

The width is: x - 2 = 9

5 0
2 years ago
Steven put together 981 pieces of a puzzle. About how many pieces did he put together? Round to the nearest thousand. Use what y
Colt1911 [192]
About 1,000 puzzle pieces
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2 years ago
If you have a four digit code, where each digit can be any number from 0-9, what is the total number of possible four digit code
Aleksandr [31]
Exactly 10,000 it’s hard to explain though it’s really complicated
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3 years ago
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