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4 years ago

10

You are playing a board game with a friend. At the start, you move four spaces back. On your next turn, you move two spaces forw

ard. Which expression can be used to find how far you are from your original position?

1 answer:

igomit [66]4 years ago

6 0

Answer:

x=-4+2

Step-by-step explanation:

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Choose 2 hellllpppppp plzzzxxxxzz

diamong [38]

Answer:

Choices C and D

Step-by-step explanation:

The most simplest way is just to solve each one and see which two have the same answer as the first expression.

But you could also see that both of the $\frac{4}{7}$ are going to cancel each other out so you are left with $-\frac{8}{9} +\frac{9}{8}$ which is also choice C.

For choice D I distributed the negative one to the insides of the parenthesis that left me with $-\frac{4}{7}-\frac{8}{9}+\frac{4}{7} +\frac{9}{8}$ which is the same expression as the first one.

5 0

3 years ago

Find (a) the amplitude, (b) the wavelength, (c) the period, and (d) the speed of a wave whose displacement is given by y= 1.5 co

leonid [27]

Answer with Step-by-step explanation:

We are given that displacement of wave

$y=1.5cos(0.68x+37t)$

Where y in cm and t in sec.

a.Compare it with

$y=Acos(kx+\omega t)$

Amplitude of wave=A

We get A=1.5

Amplitude=A=1.5 cm

b.k=0.68

$\frac{2\pi}{\lambda}=0.68$

$\lambda=\frac{2\times 3.14}{0.68}=9.2 cm$

Using $\pi=3.14$

Wavelength of the wave=9.2 cm

c.Period= $\frac{2\pi}{T}=\omega$

$\frac{2\pi}{T}=37$

$T=\frac{2\times 3.14}{37}=0.17 s$

The period of the wave=0.17 s

Speed of the wave= $\nu \lambda=\frac{\lambda}{T}=\frac{9.2}{0.17}$

Speed of the wave=54.1 cm/s

8 0

3 years ago

Find the median of the data set. 1470, 1590, 1420, 1215, 1405, 1370, 1465, 1460, 1230

zimovet [89]

Answer:

the median is the middle number find the middle number of these and there's your answer

8 0

3 years ago

Read 2 more answers

1) Find the volume of the figure below. Round to the tenth place, if

AleksandrR [38]

Answer:

It should be 396

Step-by-step explanation:

11x6=66

66x6 should get u to 396

8 0

3 years ago

What center of variability is most appropriate when using median?

nadezda [96]

Answer: The mean is the average of all the values. The median is the number that falls in the exact center of all the measurements, while the mode is the number that occurs most frequently. ... One way to measure variability, range, is the difference between the highest and lowest values in a data set.

Step-by-step explanation: Ok?

3 0

3 years ago

Read 2 more answers