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Dvinal [7]
3 years ago
8

What is the true solution to 2 in 4x = 2 in 18

Mathematics
2 answers:
arlik [135]3 years ago
4 0

Answer:

Answer: x=2 is the true solution. Step-by-step explanation: We have been given the expression: 2\ln 4x=2\ln 8. Using: n\ln m=\ln m^n. Our given expression becomes: \ln{4x}^2=\ln{8^2}. Cancel ln ...

Step-by-step explanation:w

erastovalidia [21]3 years ago
3 0

ANSWER

x =  \frac{9}{2}

EXPLANATION

The given equation is;

2 ln(4x)  = 2 ln(18)

This implies that:

ln(4x) = ln(18)

Since the two sides of the equations are equal, the argument must also be equal.

4x = 18

x =  \frac{18}{4}  =  \frac{9}{2}

The true solution is

x =  \frac{9}{2}

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Eight trials are simulated. The results are shown in the table.
bezimeni [28]

Answer:

2.897

Step-by-step explanation:

Let us find the mean and variance for the sample first.

105 104 110 112

114 106 108 109

Mean = sum/8 = 108.5

Variance = 12

Std dev = sq rt of variance = 3.464

Std error = std dev/ sq rt n

since n =8, we get std error = 1.225

Since sample size is small, df =8-1 =7

For 95% confidence intervals, t critical value for two tailed=2.365

Margin of error = std error x t critical = 1.225(2.365)

=2.897


3 0
3 years ago
PQ:QR is 5:2 and PR=42 find PQ and QR​
kicyunya [14]

Answer:

there is a math caulator

Step-by-step explanation:

6 0
3 years ago
-5 1/2 -4 1/4 - 6 3/4
BlackZzzverrR [31]

For this case we have an expression of mixed numbers:

5 \frac {1} {2} = \frac {2 * 5 + 1} {2} = \frac {11} {2}\\4 \frac {1} {4} = \frac {4 * 4 + 1} {4} = \frac {17} {4}\\6 \frac {3} {4} = \frac {4 * 6 + 3} {4} = \frac {27} {4}

Rewriting the expression we have:

- \frac {11} {2} - \frac {17} {4} -\frac {27} {4} =

Remember that equal signs are added and the same sign is placed.

- \frac {11} {2} - \frac {44} {4} =\\- \frac {11} {2} - \frac {22} {2} =\\- \frac {33} {2}

Answer:

- \frac {33} {2}\\-(15 \frac {3} {2})

5 0
4 years ago
a rectangular fish pond fish pond is 21 square feet in area. if the owner can surround the pond with a 20-foot fence, what are t
Ksivusya [100]

The perimeter is 20 feet, half the perimeter Would be 10 feet.

Need 2 numbers when added together equal 10 and when multiplied together equal the area of 21.

3 and 7 The pond is 3 feet by 7 feet.

5 0
3 years ago
Read 2 more answers
Tim looks up at the top of a tree at an angle of elevation of 40 degrees. If heis 5 ft tall and 10 ft from the tree, how tall is
dolphi86 [110]
<h2>Answer:</h2>

13.391 ft

<h2>Explanations:</h2>

The schematic diagram of the given question is shown below;

The height of the tree is expressed as:

H = h +5

Determine the value of h using the SOH CAH TOA identity

\begin{gathered} tan\theta=\frac{opposite}{adjacent} \\ tan40^0=\frac{h}{10} \\ h=10tan40 \\ h=10(0.8391) \\ h=8.391ft \\  \end{gathered}

Determine the height of the tree

\begin{gathered} H=h+5 \\ H=8.391+5 \\ H=13.391ft \end{gathered}

Hence the height of the tree is 13.391ft

3 0
1 year ago
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