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Amanda [17]
4 years ago
11

Can someone please answer this question please answer it correctly and please show work please help me I need it

Mathematics
2 answers:
Goshia [24]4 years ago
8 0

Answer:

The answer to your question is the letter B

Step-by-step explanation:

To calculate the distance between -4 and 1 we need to consider the signs of these numbers.

-4 is negative and 1 is positive.

To know the distance we must subtract 1 to -4

                     Distance = | -4 - 1 |       Use absolute value

                                     = | -5|

                                     = 5

Conclusion

The correct choice is the second one.

Serga [27]4 years ago
5 0

Answer:

B

Step-by-step explanation:

|-4 + 1| = |-3| = 3

|-4 - 1| = |-5| = 5

The distance is 5, so the second equation should represent the problem.

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What is the solution to this equation? 2ln4+lnx=3ln2+ln(x+1)
Galina-37 [17]

Answer:

x=1

Step-by-step explanation:

Given equation:

2 \ln 4+\ln x=3 \ln 2+\ln(x+1)

\textsf{Apply the power law}: \quad n \ln x = \ln x^n

\implies \ln 4^2+\ln x=\ln 2^3+\ln(x+1)

Simplify:

\implies \ln 16+\ln x=\ln 8+\ln(x+1)

Subtract ln 8 from both sides:

\implies \ln 16+\ln x- \ln 8=\ln(x+1)

Subtract ln x from both sides:

\implies \ln 16-\ln 8=\ln(x+1)-\ln x

\textsf{Apply the quotient law}: \quad \ln x - \ln y = \ln \frac{x}{y}

\implies \ln \left\dfrac{16}{8}\right = \ln \left(\dfrac{x+1}{x}\right)

Simplify:

\implies \ln 2 = \ln \left(\dfrac{x+1}{x}\right)

\textsf{Apply the equality law}: \quad \textsf{if }\: \ln x= \ln y\:\textsf{ then }\:x=y

\implies 2=\dfrac{x+1}{x}

Multiply both sides by x:

\implies 2x=x+1

Subtract x from both sides:

\implies x=1

5 0
2 years ago
Find the circumferences of the two circles. Circle A has a radius of 21 meters and Circle B has a radius of 28 meters. Use penci
eimsori [14]

Answer:

1.) Circumference of circle A = 131.95 metre

2.) Circumference of circle B = 175.93 metre

3.) Yes. Radius is proportional to the circumference.

Step-by-step explanation: Given that Circle A has a radius of 21 meters and Circle B has a radius of 28 meters

Circumference of a circle = 2πr

For circle A

Radius r = 21

Circumference = 2 × 3.143 × 21

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For circle B

Circumference = 2 × 3.143 × 28

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Because the radius of the circle is proportional to the distance around them ( circumference ) for all the circle. That is, the larger the radius, the larger the circumference

6 0
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The answer is D Because in a tangent
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xenn [34]

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