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3 years ago

Which of the following could cause inaccurate survey results?

1 answer:

3 0

Biased questions is the right answer because the question might make someone think differently than what they first thought.

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A student was trying to solve the problem below. look at their work and find the error.

Verizon [17]

Answer:

line 4

Step-by-step explanation:

i just know.

7 0

2 years ago

Jack usually wakes up at 7 o'clock in the morning. yesterday he got up 53 minutes later than usual. what time did jack wake up?

Sonbull [250]

Answer:

7:53 am

Step-by-step explanation:

We simply take 7 hours, convert it into 7:00 am, and then add on 53 minutes.

4 0

2 years ago

Use Newton’s Method with initial approximation x1=1 to find x4, the third

babymother [125]

Let $f(x) = x^3 + 3x + \sin(x) - 5$ . Using Newton's method to approximate a solution to $f(x) = 0$ , we consider the recurrence

$\begin{cases} x_1 = 1 \\ x_{n + 1} = x_n - \frac{f(x_n)}{f'(x_n)} & \text{for } n \ge 1 \end{cases}$

Differentiating $f(x)$ gives

$f'(x) = 3x^2 + 3 + \cos(x)$

Then

$x_2 = 1 - \dfrac{f(1)}{f'(1)} = 1 + \dfrac{1 - \sin(1)}{6 + \cos(1)} \approx 1.024238790$

$x_3 = x_2 - \dfrac{f(x_2)}{f'(x_2)} \approx 1.024009549$

$x_4 = x_3 - \dfrac{f(x_3)}{f'(x_3)} \approx \boxed{1.024009528}$

which agrees numerically with the actual root of $f(x)$ up to at least 9 digits after the decimal point.

3 0

2 years ago

Identity the property used in the first five steps to solve the equation 2(x-5)-6x=-22

Nikitich [7]

2 ( x - 5 ) - 6 x = - 22

2 * x - 2 * 5 - 6 x = -22

2 x - 10 - 6 x = -22

2 x - 6 x = - 22 + 10

- 4 x = - 12 * ( - 1 )

x = 12 / 4

x = 3

hope this helps!

6 0

3 years ago

How do you simplest form 56/30

Lerok [7]

As an improper fraction it would be 28/15
as a mixed number it would be 1 13/15

i hope i helped

8 0

3 years ago