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3 years ago

0.5(r+2.75)=3 Solve for r please

2 answers:

8 0

First you foil so you would get

0.5r+1.375=3

Then you subtract the 1.375 to the 3

0.5r=3-1.375

0.5r=2.375

Now to find r you need to divide by 0.5

r=2.375/0.5

Dafna1 [17]3 years ago

7 0

0.5 (r + 2.75) = 3
0.5 r +1.375 = 3
0.5 r= 3 - 1.375
0.5 r= 1.625
r= 1.625/0.5
r = 3.25

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Misha Larkins [42]

Answer:

The volume of shipping container is 2880 cubic inches.

Step-by-step explanation:

We are given the following in the question:

Dimensions of tissue box =

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3 years ago

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3 years ago

A football is punted from a height of 2.5 feet above the ground with an initial vertical velocity of 45 feet per second.

Vikentia [17]

Answer:

1.451 seconds. Hurry.

Step-by-step explanation:

The position(height, h) of the foot ball will be given by the equation:

h = -32.2t^2 + 45t + 2.5

The term -32.2t^2 consists of the acceleration caused by gravity at Earth's surface ( -32 ft/sec^2) and the term +45t accounts for the initial velocity. The + is assigned since the ball is moving vertically from ground. The negative sign in -32t^2 is due to the acceleration being towards ground. The term 2.5 accounts for the fact that the initial height of the ball is 2.5 feet above ground.

We can either calculate or graph with this function to find the time the ball spends in the air:

<u>Calculate: </u>

h = -32.2t^2 + 45t + 2.5

We need a value of t that would cause h to be 5.5 feet, the level it was caught:

5.5 = -32.2t^2 + 45t + 2.5

-32.2t^2 + 45t + 2.5 = 5.5

-32.2t^2 + 45t -3.0 = 0

Solve for t using the quadratic formula. I get a value of 1.33 seconds.

<u>Graph:</u>

See the attached graph. It confirms the 1.33 second value

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2 years ago

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klemol [59]

Answer:

Step-by-step explanation:

9 - 6 = 3

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4 years ago

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