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Mnenie [13.5K]
3 years ago
11

the position of a particle moving to the right on the x-axis is given by x(t), where x(t) is measured in inches and t is measure

d in minutes for 0≤t≤100. if y=x(t) is a linear function, which of the following would most likely give the best estimate of the speed of the particle, in inches per minute, at time t=20 minutes?
SAT
1 answer:
oee [108]3 years ago
3 0
Jehdjejtjtbsbdbdbfbb bc bfbrbjrjtjtjjtjtjthtbt
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Select the order in which the vertices are visited in a pre-order traversal of the tree shown below.Question 5 options:e, i, b,
Aleksandr [31]

Based on the vertices and the pre-order traversal order the tree would be visited is e, i, b, h, f, a, c, d, g.

<h3>What order will the tree be visited?</h3>

When using the pre-order traversal, the order would be from the root child node to the left child node to right child node.

The root node is the highest node which is e. From here you'll then proceed to the left roots first which means you'll go to i and then b.

From there you go to h and then f. The next nodes would be a and c.

Continuing from left to right, you'll then go to d and then g.

You'll therefore start from "e" and move to "i" and then "b" to "h" and then "f" and "a" to "c" and then to "" and finally to "g"

Find out more on the pre-order traversal at brainly.com/question/14559964.

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How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?
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Exactly 80 liters of 20% are needed.

Let quantity of 20% alcohol solution be added : x liters  

Here is the work:

> x*20% + 40 * 50% = (x+40) * 30%  

> x*0.2 + 40*0.5 = (x+40)*0.3 ..(converting percentages into decimal)  

> 0.2x + 20 = 0.3x + 12

> 20-12 = 0.3x - 0.2x (Rearranging similar terms)

> 8 = 0.1 x

Hence x = 8/0.1  

Ans 80 Litres

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Answer:

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