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liq [111]
3 years ago
8

Suppose that a committee is studying whether or not there is excessive time waste in our judicial system. It is interested in th

e mean amount of time individuals spend at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was 4 hours with a sample standard deviation of 1.2 hours. (a) Define the random variables X and X in words.
Mathematics
1 answer:
irina1246 [14]3 years ago
8 0

Answer:000

Step-by-step explanation:

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How do i Solve this? 5x-4=2x+6
Sloan [31]

5x-4=2x+6

5x-2x=6+4

3x=10

x=10/3

8 0
4 years ago
<img src="https://tex.z-dn.net/?f=9%20-%204%20%5Csqrt%7B5%7D%20" id="TexFormula1" title="9 - 4 \sqrt{5} " alt="9 - 4 \sqrt{5} "
Korolek [52]

Answer:

9−4√5=(Decimal: 0.055728)

Step-by-step explanation:

3 0
3 years ago
Which statement best describes the equation x5 + x3 – 14 = 0?
damaskus [11]

Answer:

2.The equation is not quadratic in form because it cannot be rewritten as a second-degree polynomial.

Step-by-step explanation:

A quadratic equation is any equation that can be rearranged in standard form as :

ax² + bx + c = 0

Where a, b and c are coefficients and a ≠ 0.

Since for a quadratic equation, the power of x is a non negative integer, it is considered as a polynomial. A quadratic equation is a second-degree polynomial (i.e the gratest power of x is two).

The equation  is not a quadratic equation because it cannot be rewritten as a second-degree polynomial.

4 0
3 years ago
Read 2 more answers
the lengh of a rectangle is 6cmgreater than the width. the area is 112cm^(2). find the lengh and the width
Nataly_w [17]

Answer:

See below ~

Step-by-step explanation:

The length and width are <u>x + 6</u> and <u>x</u> respectively.

Equating to the area :

  • Area = length × width
  • 112 = (x +6)(x)
  • 112 = x² + 6x
  • x² + 6x - 112 = 0
  • x² + 14x - 8x - 112 = 0
  • x(x + 14) - 8(x + 14) = 0
  • (x - 8)(x + 14) = 0
  • x = 8, because distances are always positive

Dimensions :

  • Length = x + 6 = 8 + 6 = <u>14 mm</u>
  • Width = x = <u>8 mm</u>
6 0
2 years ago
Write the decomposition that helps you, and then round to the given place value. Draw number lines to explain your thinking. Cir
egoroff_w [7]

Further explanation

There are general rules used in rounding numbers

1. Determine the rounded digit

2. Pay attention to the digits afterward (right). If the digit shows the numbers 0, 1, 2, 3 or 4, then the digit to be rounded is fixed, and the digit on the right is 0 all

3. If the digit on the right shows the numbers 5, 6, 7, 8 or 9, then the digit to be rounded is added to one, and the digit on the right side is made all 0

In rounding the nearest hundreds number, then we see the digit in the number tens (right of the digit hundreds), if it is worth 0, 1, 2, 3 or 4, then it remains, but if it shows numbers 5, 6, 7, 8 or 9, then the digit to be rounded is added one, and the right-hand side is 0

Calculated from the decimal point, the place on the right represents tents, hundredths, thousandths, etc.

a.  32.697

Decomposition

ten : 3

one : 2

tenth : 6

hundredth : 9

thousandths : 7

For the tenth number is 6, the value on the right is 9 then rounded become 32.7

For the hundredth number is 9, the value on the right is 7 then rounded become 32.70

for the one number is 2 , the value on the right is 6 then rounded become 33

b. 141.999

Decomposition

hundred : 1

ten : 4

one : 1

tenth : 9

hundredth : 9

thousandths : 9

a. For the tenth number is 9, the value on the right is 9 then rounded become 142.0

For the hundredth number is 9, the value on the right is 9 then rounded become 142.00

For the ten number is 4, the value on the right is 1 then rounded become

14

For the ten number is 1, the value on the right is 4 then rounded become

142

<h3>Learn more </h3>

five numbers that are round up and round down to 600

brainly.com/question/258166

all the numbers that round to 50

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round 4,398,202 to the nearest 100

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Round number 4278649 to nearest 100

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Keywords: round up, round down, the rounded digit

7 0
4 years ago
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