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3 years ago

1/8 ÷ 3 plz help me i have to put 20 leters

Mathematics

2 answers:

RideAnS [48]3 years ago

7 0

Answer:

1/24

Step-by-step explanation:

1/8÷3

Make 3 into a fraction

1/8÷3/1

Make divide into multiply and insert 3/1

1/8×1/3

=1/24

Vesnalui [34]3 years ago

4 0

Answer:

Step-by-step explanation:

Problem and Workout

Find what's 1/8 divided by 3 in fraction form?

step 1

Address formula, input values.

Input values:

1/8 & 3

1/8 ÷3 = ?

step 2

Multiply 1/8 with reciprocal of 3

=1/8x1/3

=1/24

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Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. (round your answers to the nea

creativ13 [48]

Given a table below which gives the years in A.D. for an archaeological excavation site using the method of tree ring dating:

$\begin{tabular}
{|c|c|c|c|c|c|c|c|c|}
1229&1292&1187&1257&1268&1316&1275& 1317&1275
\end{tabular}$

Part A:

The sample mean is given by:

$\bar{x}= \frac{1229+1292+1187+1257+1268+1316+1275+ 1317+1275}{9} \\ \\ = \frac{11416}{9} =1268$

Therefore, the sample mean is 1268.

Part B:

We calculate the sample standard deviation as follows:

$s= \frac{1}{9-1} \left(\sqrt{(1229-1268)^2+(1292-1268)^2+(1187-1268)^2+(1257-1268)^2+(1268-1268)^2+(1316-1268)^2+(1275-1268)^2+(1317-1268)^2+(1275-1268)^2}\right)\\ \\ = \frac{1}{8}\left(\sqrt{(-39)^2+24^2+(-81)^2+(-11)^2+0^2+48^2+7^2+49^2+7^2}\right)\\ \\ = \frac{1}{8}\left(\sqrt{1521+576+6561+121+2304+49+2401+49}\right)\\ \\ = \frac{1}{8}\left(\sqrt{13,582}\right)\\ \\ = \frac{1}{8}(116.54)=14.57\approx15$

Part C:

The 90% confidence interval is given by:

$90\% \ C. \ I.=1268\pm1.65\left(\frac{15}{\sqrt{9}}\right) \\ \\ =1268\pm\left(\frac{15}{3}\right)=1268\pm5 \\ \\ =(1268-5, \ 1268+5)=(1263, \ 1273)$

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3 years ago

2 to the 3rd power = 2x? determine the value of x

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The answer is 4
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4 years ago

Read 2 more answers

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ANEK [815]

Answer:

-2a+6

Step-by-step explanation:

-3a+a=-2a

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-2a+6

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3 years ago

Read 2 more answers

Point that satisfies

Kobotan [32]

Answer: D. (4,4)

Step-by-step explanation:

1. You have the following expression:

$y\leq x^{2}-3x+2$

3. To find the point that satifies the expression shown above, you only need to substitute each one of them into the expression, as you can see below:

A. $3\leq 3^{2}-3(3)+2\\3\leq 2$ (This is not true)

B. $2\leq 2^{2}-3(2)+2\\2\leq 0$ (This is not true)

C. $1\leq 1^{2}-3(1)+2\\1\leq 0$ (This is not true)

D. $4\leq 4^{2}-3(4)+2\\4\leq 6$ (This is true)

4. Therefore, the correct answer is the option D, which is: (4,4)

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3 years ago

An architect is allowed 70 square yards of floor space to add a small bedroom to a house. Because of the room's design in relati

JulsSmile [24]

Answer:

set width as a, so length is 2a-4

a(2a-4)=70

2a^2 - 4a = 70

a^2 - 2a = 35

a^2 - 2a + 1 = 36

(a-1)^2 = 36 Because width can not be negative so we only take possitive answer.

(a-1) = 6

a = 7

2(7) - 4

=14-4

=10

Length = 10

Width = 7

6 0

3 years ago