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pentagon [3]
3 years ago
11

Solve for x: 6 over x equals 4 over 8

Mathematics
1 answer:
Talja [164]3 years ago
5 0

Answer:

For the given expression, x = 12.

Step-by-step explanation:

Here, in the given expression:

6 over x equals 4 over 8.

Now, 6 over x = \frac{6}{x}

and  4 over 8  =  \frac{4}{8}

So, here  \frac{6}{x}   =\frac{4}{8}\\ \implies x = \frac{6 \times 8}{4}  = 12

⇒ x = 12

Hence, for the given expression, x = 12.

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A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A.
andre [41]

Answer:

C

Step-by-step explanation:

Given:

Number of samples, n = 100

let number of sample that favoured candidate A be x = 80

probability, p' = x/n = 80/100 = 0.8

probability, p for significance = 75% = 0.75

Using Z-proportion test statistics, we have

Z = (p' - p)/\sqrt{p(1 - p)/n}

Substituting the values, we have

Z = (0.8 - 0.75)/\sqrt{0.75(1 - 0.75)/100}

Z =  0.05 / 0.0433 = 1.1547

The p-value is

P(Z>1.1547) = 1 - P(Z≤1.1547)

Checking the Z-score table, P(Z≤1.1547) = 0.8789

Hence, we have 1 - 0.8789

=  0.1241

Hence, the p-value is greater than 0.05, so we cannot say it is very significant.

Hence, the population in favour of candidate A is not significantly greater than 75%

6 0
4 years ago
What is 5 nineths times 12
Reika [66]
6.666666 and so on so about 7
7 0
3 years ago
What is an equation of the line that passes through the points (6, -5) and (3,0)?
Aliun [14]

Step-by-step explanation:

Hey there!

The equation of a st.line passing through points (6,-5) and (3,0) is;

(y - y1) =  \frac{y2 - y1}{x2 - x1} (x - x1)

[Using double point formula]

Now, Put all values,

(y  + 5) =  \frac{0 + 5}{3 - 6} (x - 6)

Simplify it to get equation.

(y + 5) =   - \frac{5}{3} (x - 6)

3(y + 5) =  - 5(x - 6)

3y + 15 =  - 5x + 30

5x + 3y + 15 - 30 = 0

5x + 3y - 15 = 0

Therefore the required equation is 5x + 3y - 15 = 0.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
Read 2 more answers
Glven: F(x) = 2x - 1; G(X) = 3x + 2; H(x) = x2<br> Find F/G/H(2)<br> 121<br> 27<br> 71
Sergio039 [100]

Answer:

3/32

Step-by-step explanation:

One approach to doing this probelm is to evaluate all three functions F, G and H at x = 2:

F(2) = 2(2) - 1 = 3

G(2) = 3(2) + 2 = 8

H(2) = (2)^2 = 4

                                                           3/8

Then (F/G)(2) = (3/8), and (F/G/H) = -------- = 3/32

                                                              4

8 0
3 years ago
What is 4768in expanded notation as the sum of multipacation expressions using the power of 10
vova2212 [387]
the answer is
4.7 × 10^3. .
6 0
4 years ago
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