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uysha [10]
3 years ago
6

Factor completely: x2-4

Mathematics
1 answer:
Lelechka [254]3 years ago
5 0

Answer:

(x+2)(x-2)

Step-by-step explanation

x times x equals x^2, 2 times x equals 2x, -2 times x equals -2x, and 2 times -2 equals -4. If you add that up, the x-values cancel out, leaving the x^2 and the -4. (This explanation is working it backwards which is the easiest way IMO)

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Rewrite the following logarithmic expression as an exponential expression
Mumz [18]

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The logarithmic expression for the given exponential expression is :

\large\boxed{ \mathrm{ log_{4}(b )= a}}

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4 0
3 years ago
Peter is planting a rectangular garden. The length is 15 yards longer than the width. Jorge is planting a square garden. The sid
const2013 [10]

If the width of peter's garden is 32 yards, the ratio of the areas is 47: 32

<h3>Area of a rectangle.</h3>

area of rectangle = lw

where

  • l = length
  • w = width

Therefore,

Peter rectangular garden

  • l = 15 + x

Jorge is planting a square garden. The sides of Jorge's garden are equal to the width of Peter's garden.

Therefore,

  • x = side of Jorge garden

The ratios are as follows;

(15 + x)x : x²

Therefore, if the width of peter's garden is 32 yards, the ratio of the areas is as follows:

(15 + 32)32 : 32²

1504: 1024

752: 512

376: 256

94:64

47: 32

learn more on rectangle here: brainly.com/question/23881202

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7 0
2 years ago
PLEASE HELP IF POSSIBLE :)
MariettaO [177]

Answer:

158 square feet

Step-by-step explanation:

2(lb+bh+lh)

2(40+24+15)

80+ 48+30

158

5 0
3 years ago
Is 7/20 equal to 0.35
andrew11 [14]

Answer:

yes it is

Step-by-step explanation:

8 0
2 years ago
How do you prove a rectangle in geometry?
dedylja [7]

- The opposite sides are parallel and congruent. - The diagonals bisect each other.

- There are 4 right angles. - The diagonals are congruent.

- Show that both pairs of opposite sides are congruent.

6 0
3 years ago
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