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son4ous [18]
4 years ago
9

A truck is leaving a post office and heading out to deliver mail. The table shows the truck's distance d from the post office at

time t. Calculate the average rate of change over the interval from 8 to 15 minutes.

Mathematics
1 answer:
ankoles [38]4 years ago
6 0

Answer:

1km per minute

Step-by-step explanation:

Given the table in the picture :

The average rate of change over the interval from 8 to 15 minutes will be :

Change in distance / change in time

Change in distance between 8 and 15 minutes :

Distance d1 at 8 minutes t1 = 7km

Distance d2 at 15 minutes t2 = 14km

Average rate of change = (d2 - d1) / (t2 - t1)

Average rate of change = (14 - 7)km / (15 - 8)min

Average rate of change = 7km / 7minutes

Average rate of change = 1km per minute

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Nana76 [90]

Answer:

The coordinates are (58.1, - 81.4).

Step-by-step explanation:

The distance traveled by Nahee after 13 minutes at the rate of 2.9 m/sec along the arc of the circle with equation x² + y² = 100², will be (13 × 60 × 2.9) = 2262 m

Now, the perimeter of the circle is 2πr = 2 \times \frac{22}{7}\times 100 = 628.57 m

Therefore, after traveling three full circles and a half-circle the remaining arc length will be [2262 - (628.57 × 3) - (628.57 ÷ 2)] = 62 m

Therefore, Nahee will finish his run in the fourth quadrant.

Now, the angle made by the arc length of  62 m at the center will be = \frac{360}{628.57}\times 62 = 35.512^{\circ}

So, the angle made with positive x-axis will be (90° - 35.521°) = 54.488°

Now, the coordinates of the finishing point are (x,-y) = (rCos 54.488°, - rSin 54.488°) = (58.1, - 81.4) (Answer)

3 0
3 years ago
When factoring an expression, how can you tell if you used the GCF as the factor? Explain.
gogolik [260]

Answer:

LARGEST FACTOR

Step-by-step explanation:

The greatest common factor or GCF is the largest factor that all terms have in common. Step 2: Factor out (or divide out) the greatest common factor from each term. Step 1: Determine the greatest common factor of the given terms. The greatest common factor or GCF is the largest factor that all terms have in common.

5 0
3 years ago
Show that x=2 is a solution of the equation X^3-x-6
My name is Ann [436]

Answer:

x = 2 is the solution of x^3 - x - 6

Step-by-step explanation:

(x^3) - x - 6 = 0

If x = 2,

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= 8 - 2 - 6 = 8 - 8 = 0.

6 0
3 years ago
Answer needed ASAP!!!!
8090 [49]
Gonna go with D.i think u just have to add all the miles
3 0
3 years ago
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vlada-n [284]

Answer:

4.4

Step-by-step explanation:

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8 0
3 years ago
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