3 years ago

Which of the following g expressions is equal to 3x^2+27

Mathematics

2 answers:

Dafna1 [17]3 years ago

4 0

Answer:

Answer is 3(x^2 + 9), when factored.

Step-by-step explanation:

DaniilM [7]3 years ago

3 0

Answer:

(3x-9i)(x+3i)

Step-by-step explanation:

apex

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Step-by-step explanation:

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3 years ago

A carpenter has a rectangular wooden board. The diagonal of the board is 18 inches long and one side of the board is 12 inches l

BaLLatris [955]

In this question, it is given that the diagonal of the board is 18 inches long and one side of the board is 12 inches long.

Let the other side is of length b inches .

Now we use pythagorean identity, which is

$a^2 + b ^2 = c^2$

Here, a = 12 and c=18

Substituting these values, we will get

$12^2 + b^2 = 18^2 \\ 144 + b ^2 = 324 \\ b^2 = 324-144 \\ b^2 = 180 \\ b= \sqrt{180} \\ b = 13.4164 inches$

And the formula of perimeter is

$Perimeter = 2(Sum\ of \ legs)$

Substituting the values of the two legs, we will get

$Perimeter = 2(12+13.4164) = 50.83 inches$

3 0

3 years ago

Read 2 more answers

6x-21>3 and 14x+11>-17

Delicious77 [7]

6x-21>3
Add 21 to both sides
6x>24
Divide 6 on both sides
X>4

14x+11>-17
Subtract 11 from both sides
14x>-28
Divide 14 on both sides
X<-2

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At what elevation does the atomosphere become too thin to breath

prohojiy [21]

At around 20'000ft. and higher.

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3 years ago

What is the domain and range of y=lxl

Gelneren [198K]

I think 0.9733 for both

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