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Maksim231197 [3]
3 years ago
13

Please help ASAP !!! Thank you !

Mathematics
1 answer:
snow_tiger [21]3 years ago
8 0
<h2>(1)</h2><h2> =(a+b)(3c-d)</h2><h2> =a(3c-d)+b(3c-d)</h2><h2> =3ac-ad+3bc-bd</h2>

<h2>(2)</h2><h2> =(a-b)(c+2d)</h2><h2> =a(c+2d)-b(c+2d)</h2><h2> =ac+2ad-bc-2bd</h2>

<h2>(3)</h2><h2> =(a-b)(c-2d)</h2><h2> =a(c-2d)-b(c-2d)</h2><h2> =ac-2ad-bc+2bd</h2>

<h2>(4)</h2><h2> =(2a+b)(c-3d)</h2><h2> =2a(c-3d)+b(c-3d)</h2><h2> =2ac-6ad+bc-3bd</h2>

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Arlene buys a phone case and a charging cord for 15% off. The original price of the phone case is 18$. Her total discount is 4.2
nordsb [41]

Answer:13.80

Step-by-step explanation:18-4.20=13.80

6 0
2 years ago
If g(x) = 3x − 4, what is the value of g−1(g(13))?
Vsevolod [243]
The function g(x) = 3x-4 is a linear function. Therefore the inverse does exist (which is also linear)

Because we have an inverse, this means we can use the rule 
g^{-1}(g(x)) = x

Replace x with 13
g^{-1}(g(x)) = x
g^{-1}(g(13)) = 13

The answer is choice D

7 0
3 years ago
Read 2 more answers
help plzzz , ik it’s a test n all but this was from last year n I have to do it for this year n it’s due today :( I’ve been stre
Westkost [7]

Answer:

B

Step-by-step explanation:

2(x)+4=16

2(6)+4=16

12+4=16

7 0
3 years ago
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nika2105 [10]

Answer:

b

Step-by-step explanation:

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6 0
3 years ago
3 + root 3 *2 +root 2​
icang [17]

Answer:

6 + 3\sqrt{2} + 2\sqrt{3} + \sqrt{6}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

(3 + \sqrt{3} )(2 + \sqrt{2} )

Each term in the second factor is multiplied by each term in the first factor, that is

3(2 + \sqrt{2} ) + \sqrt{3} (2 + \sqrt{2} ) ← distribute both parenthesis

= 6 + 3\sqrt{2} + 2\sqrt{3} + \sqrt{6}

4 0
3 years ago
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