All categories

2 years ago

PLEASE HELP WITH GEOMETRY!! WILL GIVE BRAIN!!!

Mathematics

2 answers:

xenn [34]2 years ago

5 0

Answer:

1,726 cm

Step-by-step explanation:

it boils down to this equation:

2(19×29)+2(19×6.4)+2(29×6.5)

bc if you look closely, it's just each side twice (hope that makes sense)

then you work down from there

2(551)+2(123.5)+2(188.5)

1,102+259+337

1,726

Sonbull [250]2 years ago

5 0

Answer:

L = 19

B = 6.5

H = 29

$surface \ area = 2 ((L\times B) + (B \times H) + (H \times L))$

$=2((19\times 6.5) +(6.5 \times 29) + (29\times 19)) \\\\= 1726cm^2$

You might be interested in

chegg Y=4X−2 XX has a PDF of f_X(x)=\begin{cases} 3e^{-3x} & 0 \leq x \\ 0 & \text{otherwise}\end{cases}f X (x)={ 3e −

Licemer1 [7]

$\Bbb E[Y^2] = \Bbb E[(4X - 2)^2]$

so by definition of expectation,

$\Bbb E[Y^2] = \displaystyle \int_{-\infty}^\infty (4x-2)^2 f_X(x) \, dx = \int_0^\infty 3(4x-2)^2 e^{-3x} \, dx$

Integrate by parts (twice).

$\displaystyle \int_a^b u\,dv = uv\bigg|_a^b - \int_a^b v\,du$

First, let

$u = (4x-2)^2 \implies du = 8(4x-2)\,dx \\\\ dv = 3e^{-3x} \, dx \implies v = -e^{-3x}$

so that

$\displaystyle \Bbb E[Y^2] = -(4x-2)^2 e^{-3x} \bigg|_{x=0}^{x\to\infty} + 8 \int_0^\infty (4x-2) e^{-3x} \, dx \\\\ ~~~~ = 4 + 8 \int_0^\infty (4x-2) e^{-3x} \, dx$

Next,

$u = 4x-2 \implies du = 4\,dx \\\\ dv = e^{-3x} \, dx \implies v = -\dfrac13 e^{-3x}$

so that

$\displaystyle \Bbb E[Y^2] = 4 + 8 \left(-\frac13 (4x-2) e^{-3x} \bigg|_{x=0}^{x\to\infty} + \frac43 \int_0^\infty e^{-3x} \, dx\right) \\\\ ~~~~ = 4 + 8 \left(-\frac23 - \frac49 e^{-3x}\bigg|_{x=0}^{x\to\infty}\right) \\\\ ~~~~ = 4 - \frac{16}3 + \frac{32}9 = \boxed{\frac{20}9}$

7 0

11 months ago

Find the y-intercept of the line on the graph.

jeka57 [31]

It looks like it is -1 chief

3 0

2 years ago

What is WX? Explain your reasoning.

KengaRu [80]

Answer:

180

Step-by-step explanation:

Solution 1: Any straight line is 180 degrees.

Solution 2: Angle WX=Angle YZW+ Angle YZX

Angle YZW=Angle YZX=90

Angle YZW+ Angle YZX=90+90=180

So Angle WX=180

3 0

1 year ago

Read 2 more answers

Compare the following numbers using < or >?

nordsb [41]

21. 5.65 > 5.1
22. 6.2 < 6.5
23. 4.1 < 4.5
24. 7 < 7.1
25. 9.9 > 9.3
26. 4.1 < 4.5
27. 8.6 >8.1
28. 3.4 < 4.5
29. 4 > 3.9
30. 1.4 < 1.75
31. 7.1 < 7.5
32. 3 < 3.01

4 0

2 years ago

How do you convert 3 into 12/4 and 2 into 16/8?

Monica [59]

Answer:

Step-by-step explanation:

12/4=3 and 16/8=2

6 0

2 years ago

Read 2 more answers