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Natasha_Volkova [10]
4 years ago
12

What is the area, in square centimeters, of the figure shown?

Mathematics
2 answers:
lisabon 2012 [21]4 years ago
4 0
For this one, instead of breaking it down into 3 shapes we can simply subtract the missing square area from the total enclosing area...

15*8-4*4

120-16

104 cm^2
ExtremeBDS [4]4 years ago
4 0

Answer:

95\ cm^{2}

Step-by-step explanation:

we know that

The area of the figure is equal to the area of the whole rectangle minus the area of the smaller square

<u>Find the area of the whole rectangle</u>

The formula to calculate the area of rectangle is equal to

A=bh

where

b is the base

h is the height

we have

b=8\ cm

h=15\ cm

substitute

A=8*15=120\ cm^{2}

<u>Find the area of the smaller square</u>

The formula to calculate the area of the square is equal to

A=b^{2}

where

b is the length side of the square

we have

b=15/3=5\ cm

substitute

A=5^{2}=25\ cm^{2}

<u>Find the area of the figure</u>

A=120\ cm^{2}-25\ cm^{2}=95\ cm^{2}



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The mean number of daily surgeries at a local hospital is 6.2. Assume that surgeries are random, independent events. (a) The cou
Scilla [17]

Answer:

a) correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2  surgeries  in a given day is 0.0536

Step-by-step explanation:

Given data:

mean number is given as 6.2

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

we know that variance is given as\sigma^2 = mean = 6.2

hence, standard deviation is given as \sqrt{6.2} = 2.48998

thus standard deviation is 2.49

correct option is

Poisson distribution is 6.2 and standard deviation is 2.49

b) probability for only 2 or less than 2  surgeries  in a given day is

P(X \leq 2) = P(X =0) + P(X =1) + P(X =2)

                 = \frac{e^{-6.2} 6.2^0}{0!} +\frac{e^{-6.2} 6.2^1}{1!} +\frac{e^{-6.2} 6.2^2}{2!}

                 = 0.002029 + 0.012582+ 0.039006

                 = 0.053617

                = 0.0536

7 0
3 years ago
Solve for c.<br><br> 3c − 2 = 7<br><br> c =
son4ous [18]

Answer:

Exact Form:

c  =   − 1 2

Decimal Form:

c  =  − 0.5

Step-by-step explanation:

7 0
3 years ago
Which function represents the same relationship?<br> Pls!!!
xz_007 [3.2K]
The answer is b but I’m not really to sure
7 0
3 years ago
Read 2 more answers
12. Find the product: (88a + 80)(8a + 8) ( 1 ) 13. Find the product: (40y + zy)(4y + zy) ( 1 )
laiz [17]

Answer:

(88a+80)(8a+8)

88a(8a+8)+80(8a+8)

704a²+704a+640a+640

704a²+1344a+640

(40y+zy)(4y+zy)

40y(4y+zy)+zy(4y+zy)

160y²+40zy²+4zy²+z²y²

160y²+44zy²+z²y²

Step-by-step explanation:

i hope this will help you

7 0
3 years ago
PLEASE HELP ASAP!!!
EleoNora [17]
<span>Part 1:

(x+1)^2-3(x+2) \\  \\ =x^2+2x+1-3x-6 \\  \\ =x^2-x-5

option b.


Part 2:
(5x^3y^{-3})(-6x^4y)\\ \\=5(-6)x^{3+4}y^{-3+1}\\ \\=-30x^7y^{-2}\\ \\=\frac{-30x^7}{y^2}

option d


Part 3:
\frac{8+x}{2} - \frac{x+3}{3} =4

Multiply through by the LCM of 2 and 3 (i.e. 6)
6\left(\frac{8+x}{2}\right) - 6\left(\frac{x+3}{3}\right) =6(4) \\  \\ 3(8+x)-2(x+3)=24 \\  \\ 24+3x-2x-6=24 \\  \\ x+18=24 \\  \\ x=24-18=6

option b


Part 4
x^2-3x-8=x+4

x^2-3x-8=x+4 \\  \\ x^2-3x-x-8-4=0 \\  \\ x^2-4x-12=0 \\  \\ (x-6)(x+2)=0 \\  \\ x=6 \ or \ -2

option d


Part 5
Joseph is solving the equation x^2+8x-4=0 using the technique completing the square.
x^2+8x-4=0
x^2+8x+?=4+?

In completeing the square method, you divide the coeficient of x by 2, square the result and add to both sides of the equation.

Therefore, he should add 16 to both sides because (8/2)^2=16.

option d.
</span>
5 0
3 years ago
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