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choli [55]
3 years ago
8

What does 9 minus x squared equals?

Mathematics
1 answer:
natta225 [31]3 years ago
3 0
9 - x^2
= 3^2 - x^2
= (3+x)(3-x)
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A large rectangle is made by joining three identical small rectangles as shown.
vampirchik [111]

Answer: 35 cm

Step-by-step explanation:

As shown in the image attached, the A large rectangle is made by joining three identical small rectangles,

The width of one small rectangle is x cm and the length of one small rectangle is 2x cm. Therefore the perimeter of the small rectangle is given as:

2(length + width) = Perimeter

2(2x + x) = 21

2(3x) = 21

6x = 21

x = 21/6 = 3.5 cm

x = 3.5 cm

From the image attached, the width of the large rectangle is 2x (x + x) and the length is 3x (2x + x). Therefore, the perimeter of the large rectangle is:

2(length + width) = Perimeter

2(3x + 2x) = Perimeter

Perimeter = 2(5x)

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Step-by-step explanation:

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The pottery class has 14 pounds of clay. Each student got 1/3 of a pound of clay to make a plate. How many plates did the studen
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3 years ago
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Whats is a 3 step problem that can represent the expression 3x + (-5) = 19
GrogVix [38]

Answer:

x=8

Step-by-step explanation:

3x-5=19\\

The first step is to add -5 to both sides:

(3x-5)+5=19+5\\3x=24

The next step is to divide 3 on both sides:

\frac{3x}{3} =\frac{24}{3}

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Find the 20th term in the sequence, where the first term is -2 and the common ratio is-2.
geniusboy [140]

Answer:

Step-by-step explanation:

(1)

a1=-2

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2 years ago
What is 4,876,213 rounded to the nearest ten thousand
Nutka1998 [239]
4,880,000

hope that helps!!
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3 years ago
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