Mathematics High School

What is the greatest surface area of a rectangular solid that can be built from 16 identical unit cubes?

Answers

Answer 1

Answer and explanation:

The surface area of a solid is the sum of the areas of all faces of the solid. The surface area of a cube is calculated using the formula 6a² since a cube has 6 faces in total likewise a cuboid.

We can say the rectangular solid is a cuboid and to find the surface area of the cuboid we add up the surface area of all 16 cubes

Surface area is therefore 16×6a²

Related Questions

I need help pls step by step i will really appreciate pls also l will mark you the brainly if you did !

Answers

Answer:

1. 2

2.3[tex]\sqrt{5}[/tex]

3.8[tex]\sqrt{6}[/tex]

4.2.5[tex]\sqrt{10}[/tex]

Step-by-step explanation:

Remember that [tex]\frac{\sqrt{a}}{\sqrt{b}}[/tex]=[tex]\sqrt{\frac{a}{b} }[/tex], and [tex]\frac{a}{\sqrt{b}}[/tex]=[tex]\frac{a}{\sqrt{b}}[/tex]*[tex]\frac{\sqrt{b}}{\sqrt{b}}[/tex]=[tex]\frac{a\sqrt{b}}{b}[/tex]

1. [tex]\frac{\sqrt{48}}{\sqrt{12} }[/tex]= [tex]\sqrt{\frac{48}{12} }[/tex]=[tex]\sqrt{4}[/tex]=2

2. [tex]\frac{15}{\sqrt{5} }[/tex]=[tex]\frac{15}{\sqrt{5} }[/tex]*[tex]\frac{\sqrt{5}}{\sqrt{5} }[/tex]=[tex]\frac{15\sqrt{5} }{5}}[/tex]=3[tex]\sqrt{5}[/tex]

3. [tex]\frac{48}{\sqrt{6}}[/tex]= [tex]\frac{48}{\sqrt{6}}[/tex]* [tex]\frac{\sqrt{6}}{\sqrt{6}}[/tex]= [tex]\frac{48\sqrt{6}}{6}[/tex]=8[tex]\sqrt{6}[/tex]

4. [tex]\frac{25}{\sqrt{10}}[/tex]=[tex]\frac{25}{\sqrt{10}}[/tex]*[tex]\frac{\sqrt{10}}{\sqrt{10}}[/tex]=[tex]\frac{25\sqrt{10}}{10}[/tex]=2.5[tex]\sqrt{10}[/tex]

Please help! Will mark brainliest

Answers

Answer:

B

Step-by-step explanation:

Angles 5 & 6 are supplementary

hi! it should be angles 3 and 4, because this is the definition of supplementary

“Two angles are called complementary when their measures add to 90 degrees. Two angles are called supplementary when their measures add up to 180 degrees.”

let me know if this helped!

Arrange the values in order from least to greatest.
34%
.23
18/25

Answers

Answer:

.23, 34%, 18/25

Step-by-step explanation:

34% = 0.34 (2)

.23 = 0.23 (1)

18/25 = 0.72 (3)

If you could live anywhere, where would it be?
What is your biggest fear?

Answers

Answer:

A forest and a Lion and a bear

Step-by-step explanation:

Answer:

a tropical island

Step-by-step explanation:

cuz their is farm equipment know as a

PLEASE HELP U GUYS THIS IS CONFUSINGGG

Answers

the domain is 8 and 9 and the range is -3,-4,-6,-9 it is not a function

HELP!PLS ANSWER THIS BY TODAY AND TMR
Write a story to represent 15 divided by 19 solve the equation in a complete story
Next when your done what multiplication equation shows that your division is correct
Pls answer this I will give a brainly to the best!

Answers

It equals 0.7894737 that’s the answer

An item has an original price of $45, it is discounted 25%. What is the new price?

Answers

25% off $45 is $33.75

Jaden buys 4 pounds of apples for $7.44 . What was the cost per pound .

Answers

Answer:
$1.86 per pound

Explanation:
7.44 ÷ 4 = $1.86

1.86 x 4 = $7.44

Answer:  It cost  $1.86 per pound.

Step-by-step explanation:

To find the cost per pound, divide the  cost by the number of apples.

7.44 / 4 = 1.86

Find two integers whose sum is 2 and product is -3

Answers

Answer:

x = -1 and y = 3     x = 3 and y = -1

Step-by-step explanation:

May someone help me with this :) it’s easy

Answers

Answer:

b) 35/100

c) 0.35

Step-by-step explanation:

2)

[][][][][][][]

Answer:

3. [tex]\frac{20}{100}[/tex] and [tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Someone already answered b, c, and 2 so here's the third answer :)

10:50 is a ratio, which can be rewritten as [tex]\frac{10}{50}[/tex]

To write an equivalent fraction, we can either multiply or divide.

Multiplying both the numerator and denominator by 2 gets us [tex]\frac{20}{100}[/tex].

Dividing both the numerator and denominator by 10 gets us [tex]\frac{1}{5}[/tex].

Hope this helps!

reflect shape a in the line y = 4

Answers

Can someone answer my question I need an answer right now

the question is "get y by itself" and the equation is 5x + 5y =15

Answers

Answer:

y=3-x

Step-by-step explanation:

Answer:

First we get y on one side by itself.

5x+5y=15

We move x over to the other side.

5x-5x+5y=15-5x

Simplify.

5y=15-5x

Now we remove the coefficient from y.

5y/5=(15-5x)/5

Simplify.

y=15/5-5x/5

y=3-x

The answer is y=3-x

Sarah has to pay a one-time $300 deposit for her apartment. Each month she pays $700 for rent. How much would Sarah pay for “n” months?

Answers

Answer:

I don't know.

Step-by-step explanation:

“Twelve less than a number.”

Answers

You would write it as .... I think


12-x

PLEASE HELP ASAP!!! DUE TODAY!!!!!!
Frankie wants to build a garden with a central walkway. The walkway measures 2 feet by 8 feet and he wants the garden to have the same width all around the walkway.

Because of the size of the backyard, Frankie wants the total area of the garden with its walkway to be no greater than 100 square feet.
Which inequality represents the combined area of the garden and walkway?

A. (w+2) (2w+8) = 100
B. (2w+2) (w+8) = 100
C. (w+2) (w+8) = 100

Answers

Answer

(2w+2) (w+8)< 100

Step-by-step explanation:

Help me please! Thank you =D

Answers

Answer:

2A=A+A

Step-by-step explanation:

2A=A*A, not A+A

2A = A + A

hope this helps :)

A square has side length represented by X +4 inches write an expression to represent the area. Express your answer as a trinomial.

Answers

Answer:

[tex]A=(x^2+16+8x)\ \text{inches}^2[/tex]

Step-by-step explanation:

Given that,

The side length of a square, l = (x+4) inches

We need to find an expression to represent the area of the square.

The area of a square is given by :

[tex]A=\text{side}^2[/tex]

So,

[tex]A=(x+4)^2\\\\A=(x^2+16+8x)\ \text{inches}^2[/tex]

So, the area of the square is [tex](x^2+16+8x)\ \text{inches}^2[/tex].

5 is not more than x​

Answers

Answer:

well we don't don't know...because x is unknown

Answer:

There no problem but 5<=x in equation form

Step-by-step explanation:

That way because x can either be five or higher

1.Find Each of the following angle measures. Round your answer to the nearest degree. Show your work in the space below
Please help meeeeee

Answers

Answer:

a. m<DAB = 36°

b. m<B = 54°

c. m<C = 74°

Step-by-step explanation:

a. m<DAB = m<CAB + m<CAD

m<DAB = 20° + 16° (substitution)

m<DAB = 36°

b. m<B = 180° - (90° + m<DAB)

m<B = 180° - (90° + 36°) (substitution)

m<B = 54°

c. m<C = 180° - (90° + m<CAD)

m<C = 180° - (90° + 16°) (substitution)

m<C = 74°

Can you divide any number by zero?

Answers

Answer:

well basically no so i say no

Step-by-step explanation:

you can but you wouldn't get a answer because you would only get the same answer so..

Answer:

When we try to divide by zero, things stop making sense

Step-by-step explanation:

the length=2.3m and breath=90cm find the perimeter and area of rectangle​

Answers

Answer:

the length=2.3m and breath=90cm find the perimeter and area of rectangle

perimeter = 6.4mArea = 2.07m²

Step-by-step explanation:

length ( l ) = 2.3m breadth ( b ) = 0.9mperimeter = 2( l + b ) = 2 (2.3 + 0.9) = 2 × 3.2 = 6.4m

area = l × b = 2.3 × 0.9 = 2.07m²

MARK ME BRAINLIST

a reflection of the pink triangle is shown. which transformation makes this reflection

Answers

Answer:

A reflection is a transformation representing a flip of a figure. Figures may be reflected in a point, a line, or a plane. When reflecting a figure in a line or in a point, the image is congruent to the preimage. A reflection maps every point of a figure to an image across a fixed line.

HELP MEEEEEEEEEEEEE!!!!!!!!!!!!!!!!

Answers

Answer:

linear or Quadratic

i hope it works

answer: quadratic

you know it’s a quadratic when the second difference is the same number
so

the first difference is:
0 to -3 is -3
-3 to -4 is -1
-4 to -3 is +1
-3 to 0 is + 3

the second difference is:
-3 to -1 is +2
-1 to 1 is +2
1 to 3 is +2

since the second difference is always +2
the function is QUADRATIC

9 (p - 4) = -18 what is the value of the p​

Answers

Answer:

p=2

Step-by-step explanation:

9(p-4)=-18

9p-36=-18

9p=18

p=2

Answer: p=2

Step-by-step explanation:

Divide -18 by 9 to get (p-4)=-2 and then add the 4 to the 2 to get the answer of 2

Help me plzzzz I’m literally failing

Answers

Answer:

10.5.....................

Answer:

6

Step-by-step explanation:

trapezoid HJGF is 2.5 times more that trapizoid CBAD, so divide the 15 by 2.5 and get 6.

8.
Look at this figure.
It has one triangle and one rectangle. True or false?
True
False
Checkin
skip

Answers

Answer:

true

Step-by-step explanation:

the triangle is on top of the rectangle

Answer:

ture because it has one of each

Step-by-step explanation:

so like that

Determine the average rate of change from x = 0 to x = 4

Answers

Answer:

I'm super bad at math sowy!!!

Step-by-step explanation:

\(T T)/

help please i need the answer asap

Answers

Answer:

Option 2

Step-by-step explanation:

Answer:

Graph 2

Step-by-step explanation:

exponential growth means that the line is increasing

Blueface - Deadlocs ​

Answers

Answer:

???

Step-by-step explanation:

Answer:Blueface, baby, on the dead locs

Yeah, aight, on the dead locs

On the dead locs ooh, ooh

Finna over bleed this, lil' baby

On the dead locs on the dead loc

Step-by-step explanation:

what is the answer to this question​

Answers

Answer:

it would be c. 5 1/4

Step-by-step explanation:

The correct answer would be C
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