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3 years ago

Analyze the line below and answer the question that follows. What is a name of the line?

Mathematics

2 answers:

Tpy6a [65]3 years ago

6 0

Answer:

Step-by-step explanation:

there are arrows on both sides indicating that they go on forever and never touch

Nuetrik [128]3 years ago

4 0

Answer:

Option D is the correct option

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Paul [167]

Step-by-step explanation:

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2 years ago

what is the answer to this problem. lily built an orange shelf and a brown shelf to hang in her room. the orange shelf is 5 feet

marishachu [46]

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3 years ago

One of your clients at Birmingham Wills and Estates Law, PLLC passes away. Her estate is worth $56,000. She leaves half to chari

Bumek [7]

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2 years ago

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Vaselesa [24]

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2 years ago

When truckers are on long-haul drives, their driving logs must reflect their average speed. Average speed is the total distance

bekas [8.4K]

a) $v=\frac{d_{tot}}{t_{tot}}=\frac{(3 h)(60 mph)+20 mi}{3 h +t_2}$

The average speed is equal to the ratio between the total distance ( $d_{tot}$ and the total time taken ( $t_{tot}$ ):

$v=\frac{d_{tot}}{t_{tot}}$

the distance travelled by the trucker in the first 3 hour can be written as the time multiplied by the velocity:

$d_1 = (3 h)(60 mph)=180 mi$

So the total distance is

$d_{tot}=d_1 +d_2 = 180 mi+20 mi=200 mi$

The total time is equal to the first 3 hours + the time taken to cover the following 20 miles in the city:

$t_{tot}=3 h +t_2$

So, the equation can be rewritten as:

$v=\frac{d_{tot}}{t_{tot}}=\frac{(3 h)(60 mph)+20 mi}{3 h +t_2}$

b) 0.50 h (half a hour)

Since we know the value of the average speed, $v=57.14 mph$ , we can substitute it into the previous equation to find the value of $t_2$ , the time the trucker drove in the city:

$v=\frac{200 mi}{3h +t_2}\\3h+t_2 = \frac{200 mi}{v}\\t_2 = \frac{200 mi}{v}-3h=\frac{200 mi}{57.14 mph}-3 h=0.50 h$

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3 years ago