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olga55 [171]
3 years ago
5

Find area and round to nearest thousandth

Mathematics
1 answer:
vesna_86 [32]3 years ago
3 0

Answer:

236.715 ft²

Step-by-step explanation:

The figure consists of the rectangle with sides 15 ft and 4 ft and two semicircles with diameter 15 ft (radius 7.5 ft).

The area of the rectangle is

A₁=15·4=60 ft²

The area of two semicircles together is the area of circle. Thus,

A₂=πr²=π·7.5²=56.25π≈176.715 ft²

The area of the figure is

A=A₁+A₂=60+176.715=236.715 ft²

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calculate the following showing populations the temperature in Johannesburg was 15° it drastically decreased by 17 °c what is th
rusak2 [61]

Answer:

-2 degrees Celsius.

Step-by-step explanation:

15 - 17 = -2

8 0
2 years ago
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Two students start a club the first week of school. Each member invites three new members the second week of school. Each of the
Mekhanik [1.2K]
I'll just make a manual computation on how 1 member recruits his members until week 5. Then multiply the sum by 2.
                                old      new
1:   1
2:   1 x 3 = 3 ⇒        1         3       *only new members recruit 3 more
3:   3 x 3 = 9 ⇒        4         9 
4:   9 x 3 = 27⇒     13       27
5: 27 x 3 = 81 ⇒    40       81

40 + 81 = 121. Total number of members under 1 founding member.

121 x 2 founding members = 242 total number of members within 5 weeks.
3 0
3 years ago
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Is there any combination of education and post-graduation? Write the five basic objectives of education
Degger [83]

Answer:

3

Step-by-step explanation:

Actually 'post-graduation' is a type of education. Education only means learning, so post graduation is a type of education.

<u>OBJECTIVES OF EDUCATION:</u>

Usually an educational objective relates to gaining an ability, a skill, some knowledge, a new attitude etc. rather than having merely completed a given task.

5 0
3 years ago
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Algebra 2 question, please help!
yKpoI14uk [10]
Let the leading term of the polynomial, f(x), be axⁿ.

Examine the possibilities.
     n      a      x -> - ∞     x -> +∞
-------   ----     -----------  ------------
even   a>0    f -> +∞     f -> +∞   Not true
even   a<0    f-> - ∞      f-> -∞    True
odd     a>0    f-> -∞      f-> +∞    Not true
odd     a<0    f-> +∞     f-> -∞     Not true

Answer:
(a) the degree of the polynomial is even, and
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8 0
2 years ago
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How many unique planes can be determined by four noncoplanar points?
marta [7]

Answer:

Four unique planes

Step-by-step explanation:

Given that the points are non co-planar, triangular planes can be formed by the joining of three points

The points will therefore appear to be at the corners of a triangular pyramid or tetrahedron such that together the four points will form a three dimensional figure bounded by triangular planes

The number of triangular planes that can therefore be formed is given by the combination of four objects taking three at a time as follows;

₄C₃ = 4!/(3!×(4-3)! = 4

Which gives four possible unique planes.

3 0
3 years ago
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