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Ber [7]
3 years ago
9

I need help on a test asap, what is 3(x+4)

Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

3x+12

Step-by-step explanation:

you multiply 4 and 3. Since this isn't a formula to find x it is added to the number outside the bracket.

Virty [35]3 years ago
8 0

Answer:

3x + 12

Step-by-step explanation:

3(x + 4)

So you multiply 3 with each of these numbers but separately. So first multiply 3 with x, since x is just by itself you pretend it´s one, and so 3 times 1 equals 3 but also add the x with it so 3x.

Then you multiply 3 times 4 which is 12.

Last, put the numbers together and create the equation:

3x + 12

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Which equation has a solution of (2/3) for n? *
koban [17]
The answer is A 15n: 10
4 0
3 years ago
What is the true solution to 2 In eln 5x – 2 In 15?
babunello [35]

Answer:

x = 49.84

Step-by-step explanation:

We are given an equation of unknown x and we have to solve the equation for x.

2\ln(e\ln5x)-2\ln15 =0

⇒ ln(e\ln5x) = \ln15

⇒ \ln e + \ln \ln 5x = \ln 15 {Since we know that  ln AB =ln A + ln B}

⇒ \ln \ln 5x = \ln 15 -\ln e

⇒ \ln \ln 5x=\ln \frac{15}{e} {Since we know that ln A/B = ln A - ln B}

⇒ \ln 5x = \frac{15}{e}

⇒ 5x = e^{\frac{15}{e} }

⇒ x = \frac{1}{5} e^{\frac{15}{e} }{Converting logarithm to exponent form}

⇒ x = 49.84 (Approximate) (Answer)

6 0
4 years ago
What is f(-x), if f(x)=2|x|+3x
a_sh-v [17]
F(-x) = 2/-x/ + 3(-x) = 2/x/ - 3x;
6 0
3 years ago
42 customers increased by 50%
AleksandrR [38]
The answer is 63, 42*.5= 21 42+21=63
4 0
4 years ago
Read 2 more answers
How to convert 0.0001 to a power of 10 please thanks
alexandr402 [8]
Your answer is 10^(- 4). 

Think about how exponents with a base 10 work. 10^1 = 10, 10^2 = 100, 10^3 = 1000. It's just add a zero to the right side as you go up. 

Then think about 10^0. Anything to a zero power is 1. Only way to go is into negative exponents now. If for positive exponents on 10 we add a zero to the right side, then for negative exponents we add them to the left. Only difference is we have a decimal.

10^(- 1) = 0.1
10^(- 2) = 0.01
10^(- 3) = 0.001

And then your answer

10^(- 4) = 0.0001

Hopefully that explanation makes sense. Exponents can be rough to explain when you're not face-to-face or using some sort of live animation to talk through it. If you're still confused, I'd suggest talking to your instructor. 
6 0
4 years ago
Read 2 more answers
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