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oksano4ka [1.4K]
3 years ago
15

a triangular sail has a base length of 2.5 meters the area of the cell is 3.75 square meters how tall is a sail

Mathematics
1 answer:
Savatey [412]3 years ago
5 0
Ok the whole area is 3.75 sq m:

2.5x = 3.75

the height is 1.5 meters
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Step-by-step explanation:

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Factorise the following x^4+x
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Answer:

\large\boxed{x^4+x=x(x^3+1)=x(x+1)(x^2-x+1)}

Step-by-step explanation:

x^4=x\cdot \underbrace{x\cdot x\cdot x}_{3}=x\cdot x^3\\\\x=x\cdot 1\\\\x^4+x=\bold{x}\cdot x^3+\bold{x}\cdot1=\bold{x}\cdot(x^3+1)\\\\\text{used the distriburtive property:}\ a(b+c)=ab+ac

\text{If you want complete factorise, then:}

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3 years ago
corey paid for a dinner and left a 15% or $3.45 in tips. How much was the original bill without counting the tip?
Rudiy27

Answer:

19.55 $

Step-by-step explanation:

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What is the value of this expression when c = -4 and d = 10?
lianna [129]

The complete question is

"What is the value of this expression when c= -4 and d= 10?

1/4 (c^3+d²)

A.2

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The value of this expression when c = -4 and d = 10 will be option B 9.

<h3>What is a simplification of an expression?</h3>

Usually, simplification involves proceeding with the pending operations in the expression.

Simplification usually involves making the expression simple and easy to use later.

The given expression is

1/4 (c^3+d^2)\\\\1/4 ((-4)^3+(10)^2)\\\\1/4 ( -64 + 100)\\\\1/4 (36)\\\\9

Hence, the value of this expression when c = -4 and d = 10 will be option B 9.

Learn more about an expression here:

brainly.com/question/1249625

#SPJ1

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