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lions [1.4K]
2 years ago
7

A rectangle has an area of 8 square centimeters.

Mathematics
1 answer:
rosijanka [135]2 years ago
6 0

Answer:

1 cm and 8cm   2cm and 4cm

Step-by-step explanation:

1x8= 8

2x4=8

Both could equal an area of 8 square centimeters

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To solve the equation x ^2 - 2x = 3 by the technique of completing the square, you would add 4 to each side of the equation as o
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Answer:

x = -1

x = 3

Step-by-step explanation:

\sf x^2 - 2x = 3

Add 1 to both sides:

\sf \implies x^2 - 2x+1 = 3+1

Factor the left side:

\sf \implies (x-1)^2 = 4

Square root both sides:

\sf \implies x-1 = \pm2

Therefore:

\sf \implies x-1=-2 \implies x=-1

\sf \implies x-1=2 \implies x=3

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2 years ago
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Answer:

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6 0
3 years ago
Two altitudes of a triangle have lengths 12 and 14. What is the longest possible length of the third altitude, if it is a positi
Vedmedyk [2.9K]
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3 years ago
Algebra problem!!! Please help me!!!
zmey [24]

Good morning Brainiac

x+y = 13

1/2 x +y = 10


We gonna solve x+y=13 for x

So let's start by adding -y to both sides

x+y -y = 13-y

x= -y +13

Now substitute -y+13 for x in 1/2 x +y=10

1/2 x +y = 10

1/2 (-y+13)+y=10

1/2 y + 13/2 = 10

Now add -13/2 to both sides

1/2 y+13/2 -13/2 = 10- 13/2

1/2 y = 7/2

Now eliminate the common denominator which is 2

y = 7

Now we have the value for y, so lets find the value for x by substitute 7 for y in x= -y+13

x= -y+13

x= -7 + 13

x= 6

Answer : (6,7)

The answer is B


I hope that's help and if you have questions please let me know :)


Good luck

3 0
3 years ago
Read 2 more answers
Re-write the expression<br> as a product with the<br> greatest common factor.<br> (54 +99)
algol13
Find the prime factorization of 54
54 = 2 × 3 × 3 × 3
Find the prime factorization of 99
99 = 3 × 3 × 11
To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 3 × 3
GCF = 9
5 0
2 years ago
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