13. A square based cuboid has a width of 4cm. If the volume of the cuboid is 400 cubic
centimeters, what is the surface area of the cuboid?

Answers

Answer 1

Answer:

216 cm²

Step-by-step explanation:

Applying,

V = lwh..................... Equation 1

Where V = volume of the cubiod, l = length of the base, width of the base, h = heigth of the cubiod.

From the question,

Since the base of the cubiod is squared,

Therefore,

w = l = 4 cm, V = 400 cm³

Substitute these values into equation 1

400 = 4×4×h

h = 400/(4×4)

h = 25 cm

A = lw+lh+wh.................. Equation 1

Where A = surface area of the cuboid.

Given: l = 4 cm. w = 4 cm, h = 25 cm

Substitute these values into equation 1

A = (4×4)+(4×25)+(4×25)

A = 16+100+100

A = 216 cm²


Related Questions

The surface area of a cube is 54 square inches.

What is the volume of the cube?

Answers

The volume of the cube is 27in³

In a study of simulated juror decision making, Braden-Maguire, Sigal, and Perrino (2005) investigated the type of verdict assigned by study participants after they read a 12-page summation of a case involving a battered woman who had shot and killed her husband. Of the 80 participants, 27 assigned a verdict of guilty, 49 a verdict of not guilty by reason of self-defense, and 4 a verdict of not guilty by reason of insanity. What type of chi-square test would the researchers use to determine if the distribution of verdicts differs from what would be expected by chance

Answers

Answer:

Independence chi-square test

Step-by-step explanation:

The Chi-Square Test for independence is a type of statistical hypothesis test that is used to determine the existence of an association or relationship between nominal or categorical variables

The chi-square is given by the following formula;

[tex]\chi^2 = \XXL\sum \dfrac{\left (O_i - E_i \right)^2}{E_i}[/tex]

The number of participants = 80

The number that assigned a verdict of guilty = 27

The number that assigned a verdict of not guilty by reason of self defense = 49

The number that assigned a verdict of not guilty by reason of insanity = 4

Independence Chi Square test

The table of values is presented as follows;

Expected Value = (Row sum * Column Sum)/(Grand Total)

Expected Value for Guilty = 27 × 80/80 = 27

Expected Value for Self Defense = 49 × 80/80 = 49

Expected value for Insanity = 4 × 80/80 = 4

[tex]\begin{array}{ccc}Category&Observed&Expected\\Guilty&27&27\\SelfDe&49&49\\Insanity&4&4\end{array}[/tex]

What is the volume of the circle?

Answers

Answer:

Multiply the circle's area by the cylinder's length to obtain the volume. If the length is, for instance, 10 inches, then compute as follows: 113 x 10 = 1,130 cubic inches.

Workers load 5 identical large crates and 3 identical small crates onto a freight elevator. The crates have a combined weight of 1375 pounds. Later
that day, the workers load 3 more identical large crates and 6 more identical small crates onto the freight elevator. These crates have a combined
weight of 1350 pounds.

Answers

Answer: The total would be 40.53

Step-by-step explanation:

Find x
Secant tangent angles

Helpppp

Answers

Answer:

x = 139

Step by Step Explanation:

Help ASAP please thanks

Answers

Answer:

8!

Step-by-step explanation:

just do 1.12 ÷ 0.14!!

have a good day :)

Answer:

8 cats

Step-by-step explanation:

Which of the following is not an axiom about lines in the plane

Answers

Answer:

If two planes intersect, then their intersection is a line.

What is the volume of the square​ pyramid? 11cm and 11cm

Answers

Answer:

1331 feet3

Step-by-step explanation:

Answer:

V = (1/3)(121 in^2)(11 in) = 443.7 in^3

Step-by-step explanation:

If the side length of the square base is 11 cm, then the area of that base is (11 cm)^2, or 121 cm^2.  If the height of the pyramid is 11 cm (as you seem to indicate), then the volume of the squre pyramid is

V = (1/3)(121 in^2)(11 in) = 443.7 in^3

Write the number in scientific notation.
98,000
X10^

Answers

Answer:

9.8x10^5 really hope this helps

Answer:

980,000,000,000,000

Step-by-step explanation:

2
Type the correct answer in the box.
212 units
2 units
2 units
8 units
2 units
2 units
2 units
6 units
The area of the figure is
square units.
Reset
Next

Answers

Answer:

212×2×2×8×2×2×2×6= 325636

I hope the answer is correct. I hope I will get 5points

Answer:

2 units i hope this helps you

PLZ HELP!!! I got the 1 of the answers but I can't seem to figure out the other.

Answers

Answer:

It would be 11 since in the equation 11(x+3), you would need to multiply 11 * x along with 11 * 3 to get your answer.

Full Answer: 11x+11*3

Shannon is dressing a mannequin for a store window to show off a new line of men's clothing. Shannon can choose from 2 different T-shirts and 8 styles of jeans. How many different ways can Shannon dress the mannequin?

ways

Answers

Answer:

16

Step-by-step explanation:

State if the two triangles are congruent. If they are, state how you know.

Answers

Answer: yes, aas

Step-by-step explanation:

They have the two angles, and then the side after the angles

*LOOK AT PICTURE FOR QUESTION*

F) 20.5 in

G) 14.74 in

H) 9.3 in

J) 10.1 in

Answers

I’m Pretty sure it’s g

What is the value of three to the fourth power?

Answers

The answer of three to the fourth power is 81

find mKML
mKML=
HURRYY!!!

Answers

Answer:

42˚

Step-by-step explanation:

Answer:

42°

Step-by-step explanation:

Theorem of isosceles triangle says that the two adjacent angles that are not connected by two congruent lines are congruent.

Simple words:

L is the angle connected by both lines with the "ticks"

So that means K and M are congruent

Since K = 42°

M = 42°

Fun fact: If the angle name is something like ABC, the angle is technically B, because B is the vertex.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

PLZ SOMEONE HELP I NEED IT DONE

Answers

1. 114 2. 244 3. 90 4. 226 5. 228 6. 454

Which Number sentence is true?​

Answers

Answer:

I took this a few days ago and if I remember correctly, it was B.

Answer:

it would be option B. I used a calculator, so I should be right.

The cost for a pool membership for a family at a community pool is $350 plus $125 per month. A family paid a total of $1,350. How many
months did the family use the pool?

a-11
b-14
c-8
d-12

Answers

Answer:

The family used the pool for 8 months

Step-by-step explanation:

We know that the family paid a total amount of $1,350 dollars. We also know that they had to pay $350 dollars for joining the community pool. Lastly, they paid a monthly fee of $125 dollars. The value "x" represents months.

With that being said, here's our equation.

350 + 125x = 1,350

Subtract 350 from both sides and you should get this:

125x=1,000

Finally, divide 125 from both sides to get the x value.

x=8

:)

Someone plz help me

Answers

Answer:

C - (8×10) + (9×1) + (4×1/100)

Step-by-step explanation:

89.04

4 is in the hundredths place after the decimal. So it would ve equivalent to 1/100 because the 0 is taking the place of 1/10

Hope it Helps!

:)

Answer:

Hello again! Your answer is C! (Sorry this is an edit)

Step-by-step explanation:

(8 x 10) + (9 x 1) + (4 x 1/10)

im not exactly sure how to explain this, but I studied this in 3rd grade so I believe I’m correct... if you solve the question, you’ll get 89.04

i can try my best to explain below...

I’ll start with the first part of the equation.

(8 x 10) ... this equals 80

next is (9 x 1) ... this equals 9

then we have (4 x 1/100) ... this equals 4/100, because 4 of 1/100 would be 4/100, translated to decimals would equal 0.04

now we already simplified the equation: 80 + 9 + 0.04

finally, the solution. (Solving the problem)

80 + 9 = 89

89 + 0.04 = 89.04

im sorry if this isn’t a detailed enough explaination, but this is the best I could do. Best of wishes on your assignment & have a nice day! (Brainliest? Lol.)

Find the value of each expression. Show work. a) (4 + 3*2)= (10 -5) b) 3+ (6-2) x 32

Answers

A= 9 b= 224
Just add them to find ur anwser make sure to get these

a car travels a distance and of 180 km in 2 hours on a straight road .how many km can it travel in 3 hours at the same speed​

Answers

Answer:

270 KM

Step-by-step explanation:

180 divided by 2= 90

90*3= 270

What is the solution to this inequality? r - 1 > 2

Answers

Answer:

A.r>3

Step-by-step explanation:

r-1+1 >2+1 [adding '1'on both side]

we add 1 on both side to cancel the - 1 from L.H.S.

so, r > 3

HOPE THIS HELPS YOU!

A map is drawn with a scale of 1/2 inch equal to 5 actual miles.if the map distance between two cities is 8 inch's,what is the real distance between these cities in miles

Answers

Answer:

The real distance would be 16

Step-by-step explanation:

If the scale is 1/2, that means each distance on the map is half of what the real distance is. So 8 x 2 =16.

Answer:

80 miles.

Step-by-step explanation:

Since 1/2 an inch is 5 miles, that would mean one inch is 10 miles.  Now that we know one inch is 10 miles, we can multiply 10 x 8 to get 80.  Therefore, the real distance between the two citied is 80 miles.

Hope it helped and have a great day :)

Donations of $375 in February to a homeless shelter are 250% of what they were in January. What were the donations to the shelter in January?

Answers

Answer:

$150

Step-by-step explanation:

$375 was donated to a homeless shelter in February

250% of this sum was donated in January

Hence the amount donated in January can be calculated as follows

375×100/250

= 37500 250

= 150

Hence the amount donated in January is $150

can someone help me with all these!im giving brainliest:)

Answers

Step-by-step explanation:

1a.2.b.1/2 base×heightc.2 ×1/2 base×heightbase×height

b.

1m=100cm1m²=100cm×100cm1m²=10000cm²0.25m²=0.25×10000cm²0.25m²=2500cm²

C.

.3.area of rectangle button+area of back+area of top d.total surface area =base×height+area of rectangle button+area of back+area of top

help pls this is confusing me

Answers

Answer:

The probability is 1/10.

Step-by-step explanation:

Since there are 10 shirts in total, and only 1 red shirt, the probability of choosing a red shirt is 1/10.

It would be INSANLEY FANTABULOUS if I could receive brainliest!!!!!

Markus is overdrawn at the bank by $9. His brother has $15 more than him. How much money does Markus’ brother have?

Answers

Answer:

24$

Step-by-step explanation:

its just 9$ + 15$ = 24$

4. Solve the following inequality for b, showing all of your work carefully and completely
4b - 12 - 55 < 9b +8​

Answers

Answer:

b > -15

Step-by-step explanation:

4b - 12 - 55 < 9b + 8

Combine terms.

4b - 67 < 9b + 8

Subtract 9b from both sides.

-5b - 67 < 8

Add 67 to both sides.

-5b < 75

Divide both sides by -5. When dividing by a negative, flip the sign.

b > -15.

What is the first quartile of the data shown in the box plot?
0 10 20 30 40 50 60 70 80 90 100
First quartile

Answers

Answer:

The first quartile is the median of the data points to the left of the median. The third quartile is the median of the data points to the right of the median. Step 4: Complete the five-number summary by finding the min and the max. The min is the smallest data point, which is 25.

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