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AURORKA [14]
3 years ago
5

At 5 seconds, an object's velocity is 9 meters per second. At 8 seconds, the object's velocity is 25 meters per second. Assuming

a constant acceleration, what is the acceleration in meters per second per second of the object? (If necessary, round to the nearest hundredth.)
Mathematics
1 answer:
RideAnS [48]3 years ago
7 0

Acceleration  =  (change in speed) / (time for the change) .

Change in speed = (25 m/s - 9 m/s) =  16 m/s

Time for the change = (8 sec  -  5 sec)  =  3 seconds

Acceleration  =  (change in speed) / (time for the change)

                       =                 (16 m/s)  /  (3 sec) 

                       =                          (5 and 1/3)  m/s²  .

(rounded to the nearest hundredth ...  5.33 m/s² . )
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solniwko [45]
Im assuming there is exponents so if im assuming correctly, then the answer would be 6x^4 - x^3 - 5x^2 + 10x + 5 because you would combine like terms. 
8 0
3 years ago
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What is the volume of the pyramid in the diagram?<br> 25 cm<br> h = 15 cm<br> 15 cm<br> 20 cm
charle [14.2K]

Answer:the answer is 2,500 cm^3

Step-by-step explanation:

4 0
3 years ago
The roof of this garden shed has a gradient of 0.35. find the height of the shed​
Ilya [14]

The height of the shed is 2.325 m

The complete question is

The roof of a lean-to-garden shed has a gradient of 0.35.find the height....they have given the base as 1.5m and a shorter height 1.8m its like a house

<h3>What is a right Triangle ?</h3>

In a Triangle when one angle is 90 degree , the triangle is called Right Triangle .

Structure of the house is a right triangle with base = 1.5m

(height of that triangle)/1.5 = 35/100

height of that triangle = 1.5*0.35 = 0.5250

Ans: greater height of the lean-to = 1.8 + 0.5250 = 2.325 meters.

The height of the shed is 2.325 m.

To know more about Right Triangle

brainly.com/question/6322314

#SPJ1

6 0
2 years ago
0 ) Dan bought 7 new baseball trading cards to add to his collection. The next
harina [27]

Dan started with 69 cards

Step-by-step explanation:

Let x be the initial number of cards

Then

According to "Dan bought 7 new baseball trading cards to add to his collection"

x+7

The next  day his dog ate half of his collection.

\frac{1}{2}(x+7)

There are now only 38 cards left.

\frac{1}{2} (x+7) = 38

Multiplying both sides by 2

x+ 7 = 38*2\\x+7 = 76

Subtracting 7 from both sides

x+7-7 = 76-7\\x = 69

Hence,

Dan started with 69 cards

Keywords: Linear equation, word problems

Learn more about linear equations at:

  • brainly.com/question/7888686
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4 0
3 years ago
Does a = 8 b=15 c=17 make a right triangle and why​
ArbitrLikvidat [17]
Ok so pythagorean theorem is
a^2+b^2=c^2
plug it in
8^2+15^2=17^2
64+225=289
289=289

yass it works so that means they do make a right triangle

yes, they make a right triangle because they're a pythagorean triple and pythagorean theorem works when you plug the numbers in.
4 0
3 years ago
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