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slava [35]
3 years ago
11

The area of a square is 81m^2. Find the length of each side.

Mathematics
1 answer:
yulyashka [42]3 years ago
5 0

Answer:

L = 9m

Step-by-step explanation:

A = LxL

= L^2

L^2 = 81

L =

\sqrt{81}

= 9

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Need the help thanks guys
Diano4ka-milaya [45]

Answer:

x=−5+√29 or x=−5−√29

Step

Let's solve your equation step-by-step.

x2+10x+10=14

Step 1: Subtract 14 from both sides.

x2+10x+10−14=14−14

x2+10x−4=0

For this equation: a=1, b=10, c=-4

1x2+10x+−4=0

Step 2: Use quadratic formula with a=1, b=10, c=-4.

x=

−b±√b2−4ac

2a

x=

−(10)±√(10)2−4(1)(−4)

2(1)

x=

−10±√116

2

x=−5+√29 or x=−5−√29

7 0
3 years ago
here are five rods a-1 a a a a+3 all measurements are in cm the total length of the five rods is l cm find a formula for l in te
Elenna [48]

Answer:

I=5a+2 (simplified form)


Step-by-step explanation:

I is the total length of all the 5 rods.

Each of the 5 parts lengths are (a-1), a, a, a, (a+3), respectively.


<em>We add all of them and equate it to I:</em>

I=(a-1)+a+a+a+(a+3)

<em>Simplifying this, we take like terms and add:</em>

<em>I=(a-1)+a+a+a+(a+3)\\I=5a-1+3\\I=5a+2</em>


5 0
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snow_lady [41]
The answer is that 6 people would have to share their computers
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A farmer has a rectangular pen for her goats. The length of the pen can be represented by the expression 2x - 1. The width of th
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A = (2x - 1 )(x + 4 ) ← expand using FOIL

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3 0
3 years ago
What is the answer to this equation - 1/20 + 5/11?
Law Incorporation [45]

i think the answer is 89/220

7 0
3 years ago
Read 2 more answers
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