MATHEMATICS MIDDLE SCHOOL

What is the total surface area of a cuboid whose dimensions are 12cm x 8cm x 3cm?

Answers

Answer 1

Answer:

Answer:

288cm

Step-by-step explanation:

8x3x12=

288 centimeters

Related Questions

Evaluate. (−6+8)−2 Please help me
at the dog show, there are 4times as many boxers as spaniels. If there are a total of 30 dogs, how many dogs are spaniels?
I need help with simply the number please
Lunch A survey showed that 30% of students bring their lunch to school. The survey polled 300 students. How many of the 300 students do not bring their lunch to school?
Two increased by the product of a number and 9 is greater than or equal to 25.

Match each item in Column A to an answer in Column B.What property is shown by the equation?

Column A
1.–(–33 + 18) = 33 + (–18)
2.–10 + (–15) = –15 + (–10)
3.4 + (29 + 16) = 4 + (16 + 29)
4.–12 + (12 + 27) = (–12 + 12) + 27

Column B
A.commutative property
B.associative property
C.opposite of a sum property

Answers

Its A. associative property because the problem stays the same like so ex- 2+7+5= 2+7+5

F(x)=2/x and g(x)=2/x what is f(g(x))

Answers

Answer:

f(g(x)=x

Step-by-step explanation:

Put g(x)=2/x in the place of "x" in f(x)

f(2/x)=2/(2/x)

Cancel 2 with 2 and remaining is 1/(1/x) which is "x"

f(g(x)=x

Find the volume of the composite figure. please!

Answers

cut it up
3.
left rectangle and right rectangle
left recgnale is 2 height, 3 width 6 legnth
V=6*3*2=36
right rectangle is 2 height 2 width and 4 legnth
V=4*2*2=16

add them 36+16=52ft^2

5. we can't se how widt the small right side is because you didn't capture that

Answer:

Step-by-step explanation:

In the equation x-4y=2, for what value of x will y=0?

Answers

$Put\ the\ value\ of\ y=0\ to\ the\ equation\ x-4y=2:\n\nx-4(0)=2\n\nx-0=2\n\n\boxed{x=2}$

A shoe box is 10 inches long and 6 inches wide. It is 3 inches tall. Sage is wrapping the shoe box and determined that she needs 20% more than the total surface area in gift wrap to cover the box and account for overlap. How many square inches of gift wrap does she need?

Answers

Answer: $360\ in^2$

Step-by-step explanation:

For this exercise you need to use the folllowing formula for calculate the Surface area of a Rectangular prism:

$SA = 2wl + 2lh + 2hw$

Where "l" is the length, "w" is the width and "h" is the height of the prism.

In this case you can identify that:

$l=10\ in\n\nw=6\ in\n\nh=3\ in$

Therefore, substituting values, you get that the surface area of the shoe box is:

$SA = 2(6\ in)(10\ in) + 2(10\ in)(3\ in) + 2(10\ in)(6\ in)\n\nSA=300\ in^2$

The 20% of this surface area is:

$(300\ in^2)(0.20)=60\ in^2$

Since she needs 20% more than the total surface area in gift wrap to cover the box and account for overlap, you get that total amount of square inches of gift wrap that she needs is:

$Total=300\ in^2+60\ in^2=360\ in^2$