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3 years ago

9 meters of gold wire. How long is the wire in millimeters?

Mathematics

2 answers:

kenny6666 [7]3 years ago

6 0

Milli means 1000
1 meter=1000 milimeters

therefor
9 times 1 meter=9 times 1000 milimeters
9 meter=9000 milimeters

netineya [11]3 years ago

5 0

9000. There are 1000 millimeters in one meter. Therefore multiplying 9 and 1000 will give you the right answer

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Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n=500, x=

DiKsa [7]

Answer:

0.3581<x<0.4429

Step-by-step explanation:

Using the formula for calculating the confidence interval of the population proportion p expressed as:

Confidence interval = p ± Z * √p(1-p)/n

p is the population proportion = x/n

p = 200/500

p = 0.4

Z is the z-score at 95% CI = 1.96

n is the sample size = 500

Substituting the given parameters into the formula we will have;

Confidence interval = 0.4 ± 1.96 * √p(1-p)/n

Confidence interval = 0.4 ± 1.96 * √0.4(0.6)/500

Confidence interval = 0.4 ± 1.96 * √0.24/500

Confidence interval = 0.4 ± 1.96 * √0.00048

Confidence interval = 0.4 ± 1.96 * 0.0219

Confidence interval = 0.4±0.04294

Confidence interval = (0.3571, 0.4429)

Hence the confidence interval of the population mean is 0.3581<x<0.4429

5 0

3 years ago

Need answers to 34 35 and 36

Eva8 [605]

Answer:

34) 75

35) 60

36) 210

Step-by-step explanation:

34) Area of a rectangle:

L x B

= 15 x 5

= 75

35) Area of a trapezium :

½ h (sum of || sides)

= ½ x 6 x (12+8)

= 3 x 20

= 60

36) Area of a regular hexagon:

3BH

= 3 x 7 x 10

210

Hope it helps....

7 0

2 years ago

Read 2 more answers

Amber had 6 cousins. Her friend Ashley has 2 fewer than 3 times as many cousins as Amber has. Which expression represents the nu

Olin [163]

Answer:

Cousins Amber has: 6

(Let no. of cousins Amber has be represented as x)

Cousins Ashley has: 3x - 2

(3 X 6)- 2

18-2

8 0

2 years ago

Please answer with clear instructions so that i can apply this to other questions.

kvv77 [185]

Answer:

10 terms

Step-by-step explanation:

equate the sum formula to 55 and solve for n

$\frac{1}{2}$ n(n + 1) = 55 ( multiply both sides by 2 to clear the fraction )

n(n + 1) = 110 ← distribute parenthesis on left side

n² + n = 110 ( subtract 110 from both sides )

n² + n - 110 = 0 ← in standard form

Consider the factors of the constant term (- 110) which sum to give the coefficient of the n- term (+ 1)

the factors are + 11 and - 10 , since

11 × - 10 = - 110 and 11 - 10 = + 1 , then

(n + 11)(n - 10) = 0 ← in factored form

equate each factor to zero and solve for n

n + 11 = 0 ⇒ n = - 11

n - 10 = 0 ⇒ n = 10

However, n > 0 , then n = 10

number of terms which sum to 55 is 10

7 0

2 years ago

In a recent basketball game, the

statuscvo [17]

Answer:

2 points throw = 37

3 points throw = 11

Step-by-step explanation:

Given that:

Let number of

2 points = x ; 3 points = y

x + y = 48 - - - (1)

2x + 3y = 107 ---(2)

x = 48 - y

Then ;

2(48 - y) + 3y = 107

96 - 2y + 3y = 107

96 + y = 107

y = 107 - 96

y = 11

From (1)

x = 48 - 11

x = 37

2 points throw = 37

3 points throw = 11

6 0

2 years ago