Mathematics High School

Question 8
Find the surface area of a cuboid with lengths 28 cm,
4 cm and 5 cm. If the answer is A cm2 then
write the value of A.


PLEASE HELP ME OMG X

Answers

Answer 1

Answer:

Answer: 544

Step-by-step explanation:

The Surface Area of a Cuboid

Given a cuboid (rectangular prism) of dimensions x,y, and z, the surface area is calculated as follows:

[tex]S=2(xy+yz+xz)[/tex]

The dimensions of a given cuboid are x=28 cm, y=4 cm, z=5 cm, thus:

[tex]S=2(28*4 + 4*5+ 28*5)[/tex]

[tex]S= 2*272 = 544[/tex]

The surface area is [tex]544 cm^2[/tex]

Answer: 544

Related Questions

Find the difference and simplify the following
expressions.
(n – 8) – (2n + 2)

Answers

Answer:

-n-10

Step-by-step explanation:

(n-8)-(2n+2)

n-8-(2n+2)

n-8-2n-2

-n-8-2

-n-10

What is x??
1/3x + 1/5 = −5 (3/4x + 1)

Answers

Answer:

x=− 245/312

​

Step-by-step explanation:

-4x+5 + -13x+39=180 angle measure

Answers

Step-by-step explanation:

−4x+5−13x+39=180

Step 1: Simplify both sides of the equation.

−4x+5−13x+39=180

−4x+5+−13x+39=180

(−4x+−13x)+(5+39)=180(Combine Like Terms)

−17x+44=180

−17x+44=180

Step 2: Subtract 44 from both sides.

−17x+44−44=180−44

−17x=136

Step 3: Divide both sides by -17.−17x

−17

=

136

−17

x=−8

Answer:

x=−8

answer all correctly

Answers

Answer:

2. y = -9x + 7

2. y = 3x - 2

3. y - 6 = 10(2x - 1)

1. 5x + 2y = 10

4. 5x = 3y + 9

3. y + 2 = 6(x - 4)

Step-by-step explanation:

A tree casts a 24 foot shadow while the sun is at an angle of elevation of 58°. Use this information to approximate the height of the tree to the nearest tenth of a foot.

Answers

draw a picture.
tan(58°) = height/24
Height = 24tan(58°) ≈ 38.4 feet

On a map, the distance between New York City and Los Angeles is 31 inches. If the scale of the map is 1 inch: 90 miles , what is the actual distance between New York City and Los Angeles?

Answers

I’m not sure what this means no cap

PLZ HELP WILL GIVE BRAINLIEST

Choose the correct reason to justify each of the first four statements in the derivation. 1) a2 = h2 + x2

Answers

Answer: Its Either the First One, Or the Third One!, You Should get 2 Chances on Edge

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

i don’t understand anything online school is hard.

Answers

7.188 m




use the pythagorean therom

PLEASE HELP, I CANT FIGURE IT OUT AND IT IS DUE TOMORROW MORNING
Find area of the isosceles triangle formed by the vertex and the x-intercepts of parabola y=−x^2−4x+21.

Answers

Answer:

Xmin: -10

Xmax: 10

Ymin: -10

Ymax: 10

PLEASE HELP ME I BEG OF YOU IF YOU HELP ME I WILL GIVE YOU BRAINTLIEST JUST PLEASE HELP ME "Julie goes to the sports store and spends $40.50 before tax. She buys a pair of shorts for $21.75 and 3 pairs of socks that each cost same amount. How Much does each pair of socks cost?" Please help me

Answers

40.50-21.75=23.75
23.75/3=7.916 which you would round up to 7.92 so the answer is “about $7.92”

Can you help me please ​

Answers

Answer:

Step-by-step explanation:

y=kx

where k is a constant.

6=-4k

k=-6/4=-3/2

y=-3/2 x

I will give you brainlist if you answer this correctly

Answers

Answer:

its 2,340

Step-by-step explanation:

Hakeem shot the basketball 28 times and made 17 baskets. What percent of his shots were baskets? step by step

Answers

Answer:

60

Step-by-step explanation:

Answer:

17 divided by 28 = .6071  which equals 60.7% or rounded to 61%

Step-by-step explanation:

long division

what shape best describes the cross cut section perpendicular to the base of the rectangluar prism

Answers

rectangle because it’s a prism

2. diameter of car tire: 40 cm
diameter of toy car tire: 18 mm

Answers

Answer: 400:18

and 200:9

Step-by-step explanation:

what 1/8 of ?= 4.
Give me the answer fast pls

Answers

Answer:

32

Step-by-step explanation:

1/32 would be the most correct answer because even though it is 32 math questions normally want it written in the same form so it would be 1 over 32.

Five friends share 6 snacks equally.
How many fruit snacks will each friend get?

Explain with examples.

Answers

Each friend will get 1 1/5
Since there is 5 friends and 6 snacks each can get one but will have to share 1/5 equally of the last snack.

Answer:

A

Step-by-step explanation:

IF YOU KNOW THE ANSWER PLSSS HELP

Answers

Answer: G=-5+3/x

Step-by-step explanation:

2x + 3 + x^2
please help me​

Answers

Answer:

(x-3)(x+1)

Step-by-step explanation:

Answer:

2 x^2 + x − 6

Step-by-step explanation:

Expand  

( 2 x − 3 ) ( x + 2 )   using the FOIL Method.

2 x ⋅ x + 2 x ⋅ 2 − 3 x − 3 ⋅ 2

Simplify and combine like terms.

Theres your answer

-(5 – 9) - (-2)(2)
how do i solve this?

Answers

Answer:

8

Step-by-step explanation:

-(5 – 9) - (-2)(2)

-(-4) - (-2)(2)

4 - (-4)

4 + 4

8

Use PEMDAS

Answer: The answer is 8

Step-by-step explanation:

what is the area of the figure below?

Answers

109 inches is the answer! multiply the sides

The ratio of students with brown eyes in Michelle’s class to all of the students in her class is 20:25. What is another way to write this ratio?

Answers

Answer:

3/4, 5/6, 8/10 this is in fraction form though. just change it to 3:4

1,729 is divisible by 9
a. true
b. false

Answers

Answer:b

Step-by-step explanation:

Answer:

every number is divisible by a number. But if it has to be a whole number that has no decimals, then no.

Step-by-step explanation:

1729/9 = ~192.112

What is 4.89 + ? = 11.26

Answers

Answer:

The answer is 6.37.

Step-by-step explanation:

Please pick me as brainlest answer

Answer:

6.37

Step-by-step explanation:

11.26 - 4.89 = 6.37

Hope this help ;)

plz help its timed I need to get my grades up ​

Answers

5 1/4
Explanation:
1/2 is equivalent to 2/4
10 divided by 2 is 5

Answer:

4 12/18, simplified is 4 6/9

Step-by-step explanation:

You change the fractions to improper fractions so 10 1/2 to 21/2 and 2 1/4 to 9/4. Since we can't divide, we change 9/4 to 4/9 and multiply. 21 times 4 is 84 and 2 times 9  is 18.  Since that is an improper fraction, we have to change it to a mixed number. 18 can go into 84 4 times, and 18 x 4 is 72. 84 minus 72 is 12 so the final answer is 4 12/18 (simplified 4 6/9)

Hope this helps :)

Type the missing number in this sequence:
-5,
-30,
-180,

-6,480

Answers

-1,080, because they are all being multiplied by 6 :)

help me please and thank you!​

Answers

7^6 is the correct answer

Someone help me with this please

Answers

Answer:

120 cubes

Step-by-step explanation:

first you find the volume of the rectangle: 2*5/3*4/3=40/9

then find the volume of the cube: 1/3*1/3*1/3=1/27

(40/9)/(1/27)=120

-hope this helps

The drama club is selling gift baskets to raise money for new costumes. During the fall play, they sold a combined 28 regular gift baskets and 24 deluxe gift baskets, earning a total of $1,188. During the spring musical, they sold 28 regular gift baskets and 13 deluxe gift baskets, earning a total of $836. How much are they charging for the different sized gift baskets?

The drama club is charging $____ for a regular gift basket and $____ for a deluxe gift basket.

Answers

Answer:

28

Step-by-step explanation:

Hi! So what we're gonna want to do here is set up a system of equations. Lets say x = regular baskets and y = deluxe baskets. You would set up the system like this:

28x + 24y = 1,188

28x + 13y = 836

So since the number before the x is the same in both equations, we are going to want to cancel that out.

28x + 24y = 1,188

-1(28x + 13y = 836)

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

28x + 24y = 1,188

-28x - 13y = -836

Add the two equations together! There will be no x value :)

11y = 352

y = 32... The deluxe basket is going to cost $32

Put the y value into one of the equations to solve for x.

28x + 13(32) = 836

28x + 416 = 836

28x = 420

x = 15... The regular basket will cost $15

Hope this helps!

k(x) = 6 + 100
k(-5) =

Answers

Answer:

731

Step-by-step explanation:

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