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Dafna1 [17]
1 year ago
5

The total distance in centimeters that a toy robot moves varies directly with the time in seconds the toy robot moves a total di

stance of 63 cm. In 9 seconds what is the time in seconds that the toy robot moves when the total distance is 49 cm
Mathematics
1 answer:
kobusy [5.1K]1 year ago
4 0

Answer:

Hey there!

The robot moves 63 cm in 9 seconds. Then in 1 second, it moves 7 cm.

If it goes 49 cm, it will take 7 seconds.

Let me know if this helps :)

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1 year ago
The students at Southern Junior High School are divided into four homerooms. Benjamin just moved into the school district and wi
levacccp [35]

Answer:

Step-by-step explanation:

Roll a number cube with 1 representing the first homeroom, 2 representing the second homeroom, 3 representing the third homeroom, and any other outcome representing the fourth homeroom.

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8 0
1 year ago
Division of two quantities is expressed as the ____ of those two quantities.
andreev551 [17]


Division of two quantities is expressed as the  quotient of those two quantities.

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6 0
2 years ago
For the wheat-yield distribution of Exercise 4.3.5, find
Setler79 [48]

Answer:

a) 90.695 lb

b) 85.305 lb

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 88, \sigma = 7

(a) The 65th percentile

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Z = \frac{X - \mu}{\sigma}

0.385 = \frac{X - 88}{7}

X - 88 = 7*0.385

X = 90.695

(b) The 35th percentile

X when Z has a pvalue of 0.35. So X when Z = -0.385.

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-0.385 = \frac{X - 88}{7}

X - 88 = 7*(-0.385)

X = 85.305

6 0
1 year ago
Which statements are true about the graphs of all nth degree polynomials?
vova2212 [387]

The statements are true about the graphs of all nth degree polynomials are B and D.

B. It goes up and down at most a total of n times.

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6 0
2 years ago
Read 2 more answers
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