All categories

3 years ago

What is the surface area of the composite solid?

Mathematics

1 answer:

lozanna [386]3 years ago

3 0

Answer:

162 m^2

Step-by-step explanation:

Tops:

The area of the high top is 3*2 = 6

The area of the lower top is 5*2 = 10

--------

Bottom:

The area of the bottom is 8*2 =16

Back:

The area of the back is 2*11 = 22

Front:

The top front is 9*2 =18

The bottom front is 2*2 =4

-------------------------------------------

Sides

The area of the left side is

vertical piece 11*3 =33

horizontal piece 5*2 = 10

-------------

The right side is the same = 33+10 = 43

Add them together

top+bottom+ back+front+left+right

16+16+22+22+43+43 =162 m^2

You might be interested in

Solve e equation y+3=-y+9

ella [17]

Answer: y=3

Step-by-step explanation:

6 0

3 years ago

The range of y= 2/3 sin x for pi < x < 3pi/2 is ___?

victus00 [196]

Answer:

-2/3 < y < 0

Step-by-step explanation:

y = Asin(x)

Edit*

There's a node (y=0) at pi for sine wave. At 3/2pi will be the min. So range goes from -2/3 to 0

5 0

3 years ago

Find the acute angle between the lines. Round your answer to the nearest degree. 9x − y = 4, 8x + y = 6

yaroslaw [1]

Answer:

$\approx 13^\circ$

Step-by-step explanation:

Given two lines with the equations:

$9x - y = 4\\ 8x + y = 6$

First of all, let us learn the formula for finding the angle between the two lines with given equations:

$tan\theta = \dfrac{m_1-m_2}{1+m_1m_2}$

$m_1, m_2$ are the slopes of the two lines respectively.

Let us convert the given equation to point intercept form.

Point intercept form of a line is given as:

$y = mx+c$

$y = 9x-4\\y =-8x+6$

Comparing with slope intercept form, we get:

$m_1 = 9\\m_2 = -8$

Using the above formula:

$tan\theta =\dfrac{9 -(-8)}{1+9(-8)}\\\Rightarrow tan\theta = -\dfrac{17}{71}\\\Rightarrow \theta = -13.46^\circ\\$

Therefore, the acute angle between the two lines is $\approx 13^\circ$

6 0

3 years ago

Does any body knows how to answer this

Vlad1618 [11]

i have an app for you, its called photo math. all you have to do is scan a math problem like that and it will give you an answer!

hope this helped and i hope you find your answer because i have no clue what the answer is sadly, im bad at math! lol

7 0

4 years ago

Read 2 more answers

Evaluate the expressions.<br><br> 3 + x, when the value of x is 15.

densk [106]

Answer:

3+x (x=15)

3+15 =

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers