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borishaifa [10]
3 years ago
13

Which table shows a constant rate of change?

Mathematics
2 answers:
brilliants [131]3 years ago
8 0

Answer:

B

Step-by-step explanation:

B

rate=(140-40)/(7-2)=100/5=20

again rate=(280-140)/(14-7)=140/7=20

similarly A and C do not show constant rate of change.

Dafna1 [17]3 years ago
3 0

Answer:

B. 2nd Table

Step-by-step explanation:

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a baby weights 7 pounds at birth. the table shows the birth weight after each month of life, up to six months​
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Charlie bought two books at the bookstore. The first book cost $8.98 and the second book cost $17.78. How much did Charlie spend
sergiy2304 [10]

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The answer will be $26.76

Step-by-step explanation:

First you must add

$8.98 and $17.78 then you get 26.76 as your answer

Make sure to add the dollar sign.

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The dimensions of a right rectangular prism are 3/2 ft, 1/2 ft, and 2ft. What is the volume of this prism ?
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v=1.5

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5 0
3 years ago
A small radio transmitter broadcasts in a 69 mile radius. If you drive along a straight line from a city 93 miles north of the t
larisa86 [58]

Answer:

See Explanation

Step-by-step explanation:

According to the Question,

  • We have A small radio transmitter that broadcasts in a 69-mile radius. If you drive along a straight line from a city 93 miles north of the transmitter to a second city 78 miles east of the transmitter.

Thus,

The distance that you get reception is the length of the chord created by the intersection of the circle defining the edge of transmission and the line defining the car trip.

  •  x2 + y2 = 69²               this is the circle

And,

The Transmitter at the origin

City to the north at (0,93)  & City to the east at (78,0)  

the Slope is M=(-93/78)

Intercept is B= y - mx ⇒  93 - (-93/78)(0) = 93

The equation of the line between the cities is y = (-93/78)x + 93

  • y = -93x/78 + 93           this is the line

Now, Solve the above two Equations

The intersection is gotten from the picture or solving:

x^2 + [(-93/78)*x + 93]^2 = 69^2

  • on solving we get, the points approximately are: (67.952,11.98 ) and (23.6277, 64.82)

Now,

From the Pythagorean theorem the total distance of the trip is:  

d1 = √(93^2 + 78^2) ≈ 121.37miles  

And the distance when the signal is picked up is:

d2 =√ [(67.952-23.627)^2 + (64.82 - 11.98)^2] ≈ 68.96 miles

You will pick up a signal from the transmitter in (d2/d1)*100 = 56% of the drive.

3 0
3 years ago
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