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3 years ago

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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What is exponential growth? NOT FROM THE INTERNET, IN YOUR OWN WORDS PLEASE

nordsb [41]

Answer:

A growth present such that the change in slope itself differs by the multiplication of a constant

Step-by-step explanation:

* Definition: A growth present such that the change in slope itself differs by the multiplication of a constant *

8 0

3 years ago

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Plz show work 3(10-x)=21

Contact [7]

Answer:

x = 3

Step-by-step explanation:

3(10-x)=21

30-3x=21

-30 -30

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3 years ago

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Find the length of JL 15 None of the other answers are correct 12 3

r-ruslan [8.4K]

Answer:

D: 12

Step-by-step explanation:

The entire segment KI is composed of the segments KJ and JI. So:

$KI=KJ+JI$

We know that KI is 15.

KJ is (2x-15) and JI is (2x-6). Substitute:

$15=(2x-15)+(2x-6)$

Solve for x. Combine like terms:

$15=4x-21$

Add 21 to both sides:

$4x=36$

Hence, the value of x is:

$x=9$

We know that JI is 2x-6.

We will substitute 9 for x to find JI. So:

$JI=2(9)-6=18-6=12$

Hence, our answer is D.

3 0

3 years ago

A decorative steel frame is shown below it is made of a circular section and and 6 stems the length of each stem is 45 cm work o

lutik1710 [3]

Answer:

552.78

Step-by-step explanation:

5 0

3 years ago

PLEASE HELP 45 POINTS!!!!!

Nady [450]

Answer:

$\sf x = 5$

$\sf DF = 12$

setting up proportionality equation:

$\sf \dfrac{big-side}{big-diagonal} = \sf \dfrac{small-side}{small-diagonal}$

$\sf \hookrightarrow \dfrac{7}{16+x+7} = \dfrac{4}{16}$

$\sf \hookrightarrow \dfrac{7}{23+x} = \dfrac{4}{16}$

$\sf \hookrightarrow 4(23+x) = 112$

$\sf \hookrightarrow 92 + 4x = 112$

$\sf \hookrightarrow 4x = 112- 92$

$\sf \hookrightarrow 4x = 20$

$\sf \hookrightarrow x = 5$

Find DF:

$\hookrightarrow \sf x + 7$

$\hookrightarrow \sf 5 + 7$

$\hookrightarrow \sf 12$

4 0

2 years ago

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