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Mademuasel [1]
3 years ago
7

PLEASE ANSWR DUE RN. I NEED U DONT SKIP

Mathematics
2 answers:
adelina 88 [10]3 years ago
7 0

Answer:

Area of rectangle = 448

Area of semi circle = 402.1

Total area = 850.1

Step-by-step explanation:

Area of rectangle = length times width

Given length = 32 cm

Given width = 14 cm

Area = 32 * 14 = 448

Area of semi circle = πr² /  2

where r = radius

Given diameter = 32cm

To convert diameter to radius simply divide by 2

32 / 2 = 16

So radius 16

now we plug 16 into the formula

A=\frac{\pi 16^2}{2} \\16^2=256\\256\pi =804.25\\\frac{804.25}{2} =402.12\\A=402.1(rounded)

Total area = area of semi circle plus area of rectangle

total area = 402.1 + 448 = 850.1

andrew11 [14]3 years ago
7 0

Answer:

Solution given:

length [l]:diameter [d]:32cm

breadth [b]:14cm

radius [r]=32/2=16cm

Area of semi circle:½πr²=½*πx16²=<u>402.12cm</u>²

<h2>+</h2>

Area of rectangle:l*b=32*14=<u>448cm</u>²

<h2>=</h2>

Total area =402.12cm²+448cm²=<u> </u><u> </u><u>850.12cm²</u>

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For all values of x
Yuliya22 [10]

Answer:

A.) gf(x) = 3x^2 + 12x + 9

B.) g'(x) = 2

Step-by-step explanation:

A.) The two given functions are:

f(x) = (x + 2)^2 and g(x) = 3(x - 1)

Open the bracket of the two functions

f(x) = (x + 2)^2

f(x) = x^2 + 2x + 2x + 4

f(x) = x^2 + 4x + 4

and

g(x) = 3(x - 1)

g(x) = 3x - 3

To find gf(x), substitute f(x) for x in g(x)

gf(x) = 3( x^2 + 4x + 4 ) - 3

gf(x) = 3x^2 + 12x + 12 - 3

gf(x) = 3x^2 + 12x + 9

Where

a = 3, b = 12, c = 9

B.) To find g '(12), you must first find the inverse function of g(x) that is g'(x)

To find g'(x), let g(x) be equal to y. Then, interchange y and x for each other and make y the subject of formula

Y = 3x + 3

X = 3y + 3

Make y the subject of formula

3y = x - 3

Y = x/3 - 3/3

Y = x/3 - 1

Therefore, g'(x) = x/3 - 1

For g'(12), substitute 12 for x in g' (x)

g'(x) = 12/4 - 1

g'(x) = 3 - 1

g'(x) = 2.

5 0
3 years ago
Solve for y 2x+y-3z=5
Elza [17]

Answer:

<h3>A. y=-2x+3z+25</h3>

Step-by-step explanation:

Isolate the term of x and y from one side of the equation.

<u>To solve:</u>

  • The value of y.

\Longrightarrow: \sf{\sqrt{2x+y-3z}=5}

<h3>2x+y-3z=25</h3>

<u>First, you have to subtract by 2x-3z from both sides.</u>

\Longrightarrow: \sf{2x+y-3z-\left(2x-3z\right)=25-\left(2x-3z\right)}}

<u>Solve.</u>

\Longrightarrow: \boxed{\sf{y=25-2x+3z}}}

  • <u>Therefore, the correct answer is "A. y=-2x+3z+25".</u>

I hope this helps, let me know if you have any questions.

4 0
2 years ago
Read 2 more answers
-5x - 8y = 17<br> 2x - 7y = -17
Mrac [35]

Answer:

x = -5

y = 1

Step-by-step explanation:

-5x - 8y = 17

x = -5

y = 1

2x - 7y = -17

x = -5

y = 1

4 0
3 years ago
Find a number such that 20 less than twice the number is 50.
Inessa05 [86]
140 because 70 (the half) minus 20 is 50
7 0
2 years ago
The area of a square garden is 1/121 km squared. How long is each side?
ASHA 777 [7]

Answer:

hello

the \: area \: of \: square  \\ \: garden \:  = 1/121 \:  {cm}^{2}

,sides = ?

now

area \:  =  \ {sides}^{2} \\

=>1/121 \:  =  \:  {sides}^{2} \\  \\  =>\sqrt{1/121}  \:  =  \: sides  \\ \\=>1/11 cm =  \: sides

therefore, \: sides \: of \: the \:  \\ squre \: is \: 1/11cm

<u>Have </u><u>a</u><u> </u><u>safe</u><u> Life</u>

3 0
3 years ago
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