2 years ago

Need help please guys.

Mathematics

2 answers:

tiny-mole [99]2 years ago

7 0

12^2 + 18^2 = x^2

answer: 21.63

KengaRu [80]2 years ago

3 0

Answer: x= 21.6

Step-by-step explanation:

12^2 + 18^2 =x^2

144 + 324 =x^2

468 = x^2

c= 21.633

To the nearest tenth place is c= 21.6

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Rus_ich [418]

Step-by-step explanation:

your answer is 99

6 0

2 years ago

3x3-27x=0<br> Solve by factoring a

Eddi Din [679]

After factoring $3x^3-27x=0$ the solutions are x=0 , x=3, x= -3

Step-by-step explanation:

We need to solve by factoring:

$3x^3-27x=0$

Solving:

$3x^3-27x=0$

Taking 3x common:

$3x(x^2-9)=0$

Now using formula $a^2-b^2=(a-b)(a+b)$

$3x((x)^2-(3)^2)=0\\3x(x-3)(x+3)=0$

$3x=0\,\,and\,\,x+3=0\,\,and\,\,x-3=0\\x=0\,\,and\,\,x=-3\,\,and\,\,x=3\\$

So, After factoring $3x^3-27x=0$ the solutions are x=0 , x=3, x= -3

Keywords: Factorization

Learn more about Factorization at:

#learnwithBrainly

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2 years ago

Find the exponential function that satisfies the given conditions: Initial value = 70, decreasing at a rate of 0.5% per week

sdas [7]

Y = 70 e^(.005x) where x is the time in weeks

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2 years ago

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Write a pair of numbers such that the value of the 7 in the first number is 1,000 times the value of the 7 in the second number,

kirill [66]

437,000
400,307
In the second number, the 7 is moved 3 places to the right, and the 3 is moved 2 places to the right.

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AysviL [449]

Sorry it to hard to help out next times

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2 years ago