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2 years ago

Please answer ASAP and ill give 20 points and brainlest

Mathematics

2 answers:

romanna [79]2 years ago

8 0

Answer:

l = 12 is the answer

MrMuchimi2 years ago

8 0

Answer:

B, L=12

Step-by-step explanation:

Simple two-step. first you ignore addition sign, (there to trick ya) so L-3=9

then you need L by itself so add three to both sides and you'll be done.

L=12

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Solve by taking the square root of both sides.

horrorfan [7]

Answer:

Step-by-step explanation:

Given

3(x + 3)² - 81 = 0 ( add 81 to both sides )

3(x + 3)² = 81 ( divide both sides by 3 )

(x + 3)² = 27 ( take the square root of both sides )

x + 3 = ± $\sqrt{27}$ = ± 3 $\sqrt{3}$ ( subtract 3 from both sides )

x = - 3 ± 3 $\sqrt{3}$

x = - 3 - 3 $\sqrt{3}$ or x = - 3 + 3 $\sqrt{3}$ → a

8 0

2 years ago

Read 2 more answers

Help me find the answer

RUDIKE [14]

X= 14

2(X+4) = 2x+8
3x-6 = 2x+8
-6=2x-3x+8
-14 = -1x
X=14

6 0

2 years ago

Read 2 more answers

Which expression is equivalent to (16 x Superscript 8 Baseline y Superscript negative 12 Baseline) Superscript one-half?.

loris [4]

To solve the problem we must know the Basic Rules of Exponentiation.

<h2>Basic Rules of Exponentiation</h2>

$x^ax^b = x^{(a+b)}$
$\dfrac{x^a}{x^b} = x^{(a-b)}$
$(a^a)^b =x^{(a\times b)}$
$(xy)^a = x^ay^a$

$x^{\frac{3}{4}} = \sqrt[4]{x^3}= (\sqrt[3]{x})^4$

The solution of the expression is $\dfrac{4x^4}{y^6}$ .

<h2>Explanation</h2>

Given to us

$(16x^8y^{12})^{\frac{1}{2}}$

Solution

We know that 16 can be reduced to $2^4$ ,

$=(2^4x^8y^{12})^{\frac{1}{2}}$

Using identity $(xy)^a = x^ay^a$ ,

$=(2^4)^{\frac{1}{2}}(x^8)^{\frac{1}{2}}(y^{12})^{\frac{1}{2}}$

Using identity $(a^a)^b =x^{(a\times b)}$ ,

$=(2^{4\times \frac{1}{2}})\ (x^{8\times\frac{1}{2}})\ (y^{12\times{\frac{1}{2}}})$

Solving further

$=2^2x^4y^{-6}$

Using identity $\dfrac{x^a}{x^b} = x^{(a-b)}$ ,

$=\dfrac{2^2x^4}{y^6}$

$=\dfrac{4x^4}{y^6}$

Hence, the solution of the expression is $\dfrac{4x^4}{y^6}$ .

Learn more about Exponentiation:

brainly.com/question/2193820

8 0

2 years ago

Which ratios correctly compare bananas to apples, as<br> shown in the image? Check all that apply.

Oksana_A [137]

Answer:

where's the picture bro?

Step-by-step explanation:

7 0

2 years ago

SOMEONE PLEASE HELP ME I WILLG IVE EVERYTHING!

Anvisha [2.4K]

Answer:

<h2>AB is around 33.18</h2><h2>BC is around 15.58 </h2>

Step-by-step explanation:

adjacent/hypotenuse is sine:

cos(28 degrees)=29.3/x

cos(28 degrees)*x=29.3

x=29.3/cos(28 degrees)

x=around 33.18

AB is around 33.18

opposite/adjacent is tangent

tan(28 degrees)=x/29.3

tan(28 degrees)*29.3=x

x=tan(28 degrees)*29.3

x=around 15.58

BC is around 15.58

4 0

3 years ago