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2 years ago

Find the surface area of the rectangular box below

Mathematics

1 answer:

REY [17]2 years ago

5 0

Answer:

SA = 904 in.²

Step-by-step explanation:

Surface Area (SA) of a cuboid: 2(lw) + 2(wh) + 2(hl)

SA = 2(lw) + 2(wh) + 2(hl)

l = 36 in.
w = 10 in.
h = 2 in.

Substitute the given values and multiply:

SA = 2(lw) + 2(wh) + 2(hl)

SA = 2(36)(10) + 2(10)(2) + 2(2)(36)

SA = 2(360) + 2(20) + 2(72)

SA = 720 + 40 + 144

SA = 904 in.²

Hope this helps!

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Is the function f(x) x³-11x odd even or neither

Paul [167]

Answer:

Step-by-step explanation:

A function is odd if f(-x) = -f(x)

A function is even if f(-x) = f(x)

And neither if neither are true.

In this case if we plugged in a negative x here

f(-x) = (-x)^3 - 11(-x)

f(-x) = -x^3 + 11

Therefore, this function is odd because if we pulled out a negative one again we would get back the original function. Or in other words f(-x) = -f(x) for f(x) = x^3 - 11x

4 0

3 years ago

( a+b) ^2-a^2+b^2 kkkkkkkkkkkkkkk

Inessa05 [86]

Answer:

It is assumed the question is asking to simplify or factorize:

(a + b)² - a² + b² =
a² + 2ab + b² - a² + b² =
2b² + 2ab

This is simplified expression.

Factorizing as follows:

2b² + 2ab =
2b(a + b)

3 0

3 years ago

Is this a function or not?

Katena32 [7]

Answer:

It is a function!

Step-by-step explanation:

It wouldnt be a funtion if the arrows pointed to the same number hope this helps!:)

7 0

3 years ago

Charlie wants to order lunch for his friends. He'll order sandwiches and a $2 kid's meal for his little brother. Charlie has $32

hichkok12 [17]

So, obviously, since one of the prices is given, which is $2.00 for the kid's meal, then you need to subtract that from his $32.00 total to know what number you need to divide into the 6 sandwiches. So, so far you have $30.00. If you divide $30.00 by the 6 sandwiches, you will find out he could only spend $5.00 per sandwich. So basically, you got the expression of (32 -2) / 6 in order to find out that your answer is $5.00. Looking at you answer choices, I can see right away that D is correct. For the inequality, I can see that B would be the correct answer for this problem because he can't go over budget. So, your answers are B and D.

Hope this helps have a nice day and a brainlylist would be appreciated

4 0

3 years ago

Please Help! Due tonight! Solve the triangle. Round to nearest tenth, if necessary.

Vika [28.1K]

Answer:

$\displaystyle 33,8 ≈ b \\ 55,1 ≈ a \\ 35° = m∠B$

Step-by-step explanation:

We will be using the Law of Sines to find edges b and a one at a time, therefore we will use the given variables in the formulas:

Solving for Angles:

$\displaystyle \frac{sin∠C}{c} = \frac{sin∠B}{b} = \frac{sin∠A}{a}$

**Use $\displaystyle arcsin\:or\:sin^{-1}$ in your solution or you will throw the result off!

Solving for Edges:

$\displaystyle \frac{c}{sin∠C} = \frac{b}{sin∠B} = \frac{a}{sin∠A}$

__________________________________________________________

$\displaystyle \frac{33}{sin\:34} = \frac{b}{sin\:35} \hookrightarrow \frac{33sin\:35}{sin\:34} = b \hookrightarrow 33,848824408... = b \\ \\ 33,8 ≈ b$

We will now define edge a:

$\displaystyle \frac{33}{sin\:34} = \frac{a}{sin\:111} \hookrightarrow \frac{33sin\:111}{sin\:34} = a \hookrightarrow 55,093964682... = a \\ \\ 55,1 ≈ a$

This triangle is now deemed solved.

***The fact that you solved for the $\displaystyle m∠B$ tells me that you understood what to when it comes to the interior angles of triangles, so I did not have to cover that. Good wourk citisen!

I am delighted to assist you at any time. If you have further questions though, comment them and I will do my very best to answer them.

3 0

3 years ago