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3 years ago

Giving brainly if correct. worth 50-100 points!! show work please. answering all is preferred!!

Mathematics

1 answer:

motikmotik3 years ago

5 0

Answer:

pls explain a little better

Step-by-step explanation:

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The perimeter of a rectangular goat pen is 28 meters. The pen is 5 meters wide. How long is it?

polet [3.4K]

Answer:

I think it would be 9 meters.

Step-by-step explanation:

5x2=10

28-10=18

18(divided by)2=9 meters

3 0

3 years ago

Read 2 more answers

Shannon’s rectangular countertop is 3 feet wide. It is 3 times as long as it is wide. Find the length and area of Shannon’s coun

kompoz [17]

Answer:

9 feet long

Step-by-step explanation:

6 0

3 years ago

2x(9x^2+5y) polynomial operations

Annette [7]

Mathpapa will give you the answer to this and explain the steps!

6 0

3 years ago

The rule below shows how to find the position of an object thrown upward with initial velocity of 15 feet per second. Which answ

nekit [7.7K]

Here we're applying a basic physics rule for vertical motion where the only pull on the object is gravity.

This rule has the form

h(t) = h + v t + (1/2)a*t^2

o o

To adapt this rule to this particular question replace h with 0, as the

upward path of the object begins at 0 ft. Replace v with +15 ft/sec.

Replace "a" with (-32.2 ft/(sec^2); this is the acceleration due to gravity.

Then we have the following, with the label F(t):

F(t) = 0 + (15 ft/sec)t + (1/2)(-32.2 ft)/(sec^2), or

F(t) = 15t - 16.1t^2. Thus, Choice D is correct.

Please note: To avoid confusion, please use " ^ " to denote exponentiation:

F(t) = -16t^2 + 15t

5 0

4 years ago

Read 2 more answers

A cement walk 3 ft wide is placed around the outside of a rectangular garden plot that is 20ft by 30ft. Find the cost of the wal

Inessa05 [86]

Let us calculate the area of the walk.

Since the width of the walk is 3 feet, and the walk will be placed all the 4 sides,

Length of the plot including walk = 20 + (2 × 3) = 20 + 6 = 26 feet.

Breadth of the plot including walk = 30 + (2 × 3) = 36 feet.

Area of the plot including walk = 26 × 36 square feet.

Area of the plot = 20 × 30 square feet.

Area of the walk = (26 × 36) - (20 × 30)

= 936 - 600

= 336 square feet.

= $\frac{336}{3(3)}$ square yards

= 37.3 square yards

Cost of the walk per square yard = $12.25.

Therefore, total cost of the walk = 12.25 × 37.3 = $456.92.

7 0

3 years ago