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miss Akunina [59]
3 years ago
15

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics
2 answers:
Montano1993 [528]3 years ago
6 0
It is 7

2*2x = 4x + 2 = 30

4x = 28

x = 7
andrew-mc [135]3 years ago
5 0

Answer:

2(2x + 1) = 30 \\ 4x + 2 = 30 \\ 4x = 30 - 2 \\ 4x = 28 \\ x =  \frac{28}{4}  \\ \boxed{ x = 7}

  • <u>x = 7</u> is the right answer.
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What is 3 ln 3 - ln 9 expressed as a single natural logarithm? ln 3 ln 6 ln 18 ln 27
mariarad [96]

Answer:

\ln(3)

Step-by-step explanation:

The given expresion is

3 \ln(3)  -   \ln(9)

Recall that:

n \ln(a)  =  \ln( {a}^{n} )

We apply this property to get:

\ln( {3}^{3} )  -   \ln(9)

\ln(27)  -  \ln(9)

We apply the quotient rule to get

\ln( \frac{27}{9} )

=  \ln(3)

The first choice us correct

8 0
3 years ago
Read 2 more answers
Solve:<br> 22,440=6,200e^0.06T<br><br> 22,440=6,200e^0.1T
Tomtit [17]

Answer:

22440=6200e^{0.06T}

\implies \dfrac{561}{155}=e^{0.06T}

\implies \ln\dfrac{561}{155}=\ln e^{0.06T}

\implies \ln\dfrac{561}{155}=0.06T

\implies T=\dfrac{50}{3}\ln\dfrac{561}{155}

\implies T=21.43826314...

22440=6200e^{0.1T}

\implies \dfrac{561}{155}=e^{0.1T}

\implies \ln\dfrac{561}{155}=\ln e^{0.1T}

\implies \ln\dfrac{561}{155}=0.1T

\implies T=10\ln\dfrac{561}{155}

\implies T=12.86295789...

3 0
2 years ago
Tony played a video game for 85 minutes. Michael played for 37 minutes. How much more time did Tony spend playing video games?
atroni [7]

Answer:

48 more minutes

Step-by-step explanation:

85 - 37 = 48

4 0
3 years ago
A square ABCD has the vertices A(n, n), B(n, -n), C(-n, -n), and D(-n, n). Which vertex is in Quadrant III?
andreyandreev [35.5K]
The answer is C because it's two negatives. Hope that helped
8 0
3 years ago
Read 2 more answers
Can you simplify 4/10
ryzh [129]
Yes! It can simplified to 2/5 or in decimal form it would be 0.4 . Hope this helps!
7 0
3 years ago
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