Mathematics Middle School

What is the total surface area of this square pyramid?

A square pyramid. The square base has side lengths of 9 millimeters. The triangular sides have a height of 12 millimeters.

_____________ mm2
189
216
297
378

Answers

Answer 1

Answer: The correct answer is 297 (C)

Step-by-step explanation: I got it correct!!. Hope this helps :)

Answer 2

The area of a 2D form is the amount of space within its perimeter. The total surface area of the square base pyramid is 297mm².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The total surface area of the square pyramid is the sum of the area of the triangles and the area of the base. Therefore, the total surface area is equal to,

Total surface area = Area of square base + 4(Area of a triangular face)

                               = (9mm)² + 4(0.5×9×12)mm²

                               = 81mm² + 216mm²

                               = 297mm²

Hence, the total surface area of the square base pyramid is 297mm².

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Related Questions

Jackson and Julie are babysitters.

The equation shows Jackson's hourly rate, and the table shows Julie's hourly rate.

Jackson's Babysitting Rate: y = 25x

Given this data,enter the difference (in dollars) between Jackson and Julie’s hourly rate?

Answers

Answer:

the difference is 70 I believe

Step-by-step explanation:

QUICK I NEED HELP!!
Explain the difference between finding the volume of this right rectangular prism with whole unit cubes and with 1/2 -unit cubes.

Answers

The explanation of the difference between finding the volume of this right rectangular prism with whole unit cubes and with 1/2-unit cubes is given below:

Finding volume by multiplyingFinding volume with unit cubesYou take base one and multiply it by the number it is beside. then multiply by the height

What is the Volume of an object?

The volume of an object is the amount of space it fills. Large volumes are measured in cubic meters (m3).

Hence, the explanation for the calculation of the volume is given above.

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Graph the relation. Is the relation a function? Why or why not?
{(-1, 1), (-2, 1), (-2, 2), (0, 2)}


A. No; a domain value has two range values.


B. Yes; there is only one range value for each domain value.


C. Yes; there is only one domain value for each range value.

Answers

A because there is two numbers of -2
A , because you can’t have two of the same domains, but you can have two of the same ranges

What is the surface area of the rectangular pyramid below?

A rectangular pyramid. The rectangular base has a length of 4.8 meters and height of 3.8 meters. 2 triangular sides have a base of 4.8 meters and height of 2.6 meters. 2 triangular sides have a base of 3.8 meters and height of 2.9 meters.
29.99 m2
31.04 m2
41.74 m2
65.24 m2

Answers

Your answer would be 31.04 m2
It would be the second option. 31.04

Just do part B U don’t needa do part A thx

Answers

Answer:

i think 5? im not quite sure

Step-by-step explanation:

What is the solution for this inequality?

-4g - 10 ≤ 2

OPTIONS:

1. g ≤ - 3

2. g ≥ -3

3. g ≤ 2

4. g ≥ 2

Answers

Answer:

2. g ≥ − 3

Step-by-step explanation:

Calculator :D

Answer:

-4g<=12

g>=-3

so 2 is the answer

Step-by-step explanation:

thi one is also ez for you

Answers

Answer:

2 and 1/3

Step-by-step explanation:

6/3 is 2, one left over is 1/3

so 2 and 1/3

The answer is:  2 1/3.

PLEASE HELP:
What is the measure of the angle that is complementary to
a) 18° _______
a) 25° _________
a) 82° _________
a) 75° _________
Thank you so so much!!! :D

Answers

Answer:

a) 72

b) 65

c) 8

d) 15

Step-by-step explanation:

Answer:

72

65

8

15

Step-by-step explanation:

subtract 90 from each angle to get the answers

i need help asap!!! I can give brainlist.

Answers

1. P is the principal amount, $630.00.
r is the interest rate, 6.5% per year, or in decimal form, 6.5/100=0.065.
t is the time involved, 4....year(s) time periods.
So, t is 4....year time periods.
To find the simple interest, we multiply 630 × 0.065 × 4 to get that:
The interest is: $163.80

2. =8000 x 9 x 18
=12,960
Total amount = 12960 +8000=
$20,960
3. annual interest rate = 15.9 %
initial charge = $126
to get the annual interest paid = 15.9% of $126
= 0.159 * $126 = $20.03
monthly interest paid would be = annual interest / 12 months
= 20.03 / 12 = $1.67
hence in 2 months Rita will pay = initial charge + monthly interest * 2
= $126 + $ 1.67 *2 = $ 126 + $3.34
= $ 129 .34

4. To find the amount of money in the account after 8.5 years we will first turn 5.6% into a decimal. We'll do that by moving the decimal within the percentage two places to the left. That leaves us with 0.056.
Next, we'll multiply our factors to help us find out how much interest will be accrued within the 8.5 years.
500 x 0.056 x 8.5 = 238.
Margarito will earn $238 within an 8.5 year time frame.
Since her original deposit was $500 and assuming no other deposits/withdrawls occur within the time frame, we will add $238 of interest to the original deposit.
500 + 238 = 738.
This means, that Margarito will have $738 in her savings account after 8.5 years of just accruing interest.

5. $18,260 divided by (/) $220,000 = .083 or .08. The interest is 8%.
Because Kelli is earning $18,260 a year, you need to get the number down to a decimal (which would be the interest) So, you have to divide the smaller number by the larger number. I use
x 18260
____ _______
100 % 220000
multiply 100x18260 and then divide by 220000. You get 8.3, or 8.3%, but if you round up, you get 8%.
1. 163.80
2. 12,960
3. 3.34
4. 738
5. 8.3%

If I say giving brainliest!!! Y’all will come so fast. Help me please for

Answers

Answer: I think the answer is c but im not sure

Step-by-step explanation:

need this right now plz help me

Answers

Answer:

Step-by-step explanation:

13.75+(-11.25)=13.75-11.25

13-11=2

0.75-0.25=.50

2.50

Answer:

2.50

Step-by-step explanation:

pls help on this



88,164 ÷ 24= ? (give steps on this one for me pls)



2 1/3 - 4/5= _______




0.75 x 0.2 = ______



2.48 ÷ 4

Ms. Lori had 3 pizzas at her party. At the end of the evening there was 5/8 of each pizza left. What fraction of pizza was left in total?

pls help you will get brainliest, 5 stars, friend request, and 2 thanks from me <3

Answers

Answer:

88,164 / 24 = 3673.5   It's kinda hard to explain division, just divide by larger numbers than 24, but are also multiples of it, like 24,000 or 72,000 to make it easier and faster.

2 1/3 - 4/5 = 23/15 = 1 8/15

0.75 * 0.2 =  0.15

2.48 / 4 = 0.62

Ms. Lori had 15/8 or 1 7/8 pizza left

Brainly...,,.,,.,.,,,..,,,,.

Answers

Answer:

Discount:

$6.40

Final Price:

$25.60

Step-by-step explanation:

Answer:

$6.4

Step-by-step explanation:

20% of 32 is 6.4

PLEASE HELP THANK YOU:
What is the measure of the angle that is supplementary to
a) 77° _______
a) 45° ________
a) 63° ________
a) 75° ________
Thank you so much! I appreciate it! :D

Answers

Answer:

a)13

a)45

a)27

a)15

Step-by-step explanation:

Supplementary angles add up to 180. So you must substrat all of these from 180:

180-77: 103
180-45: 135
180-63: 117
180-75: 5

Which number completes the table for y = x2 ?

x y
0 0
4 16
-3 __

A. 6
B. -6
C. 9
D. -9

Answers

Answer:

C.9what is it like 4x12 or 4x2 or 4+12?
C = 9
-3 x -3 = 9
Your welcome

please help this is due today!!! i dont really understand that much either!! sorry there is sooo many!!

Answers

Answer:

96.25

Step-by-step explanation:

Take this with a grain if salt but I calculated 80÷725 and it was 96.26

Helppppppppppppppppppppppppppp me plz

Answers

Answer:

14,   15/4x + 3/2

15,   -2x + 14

Step-by-step explanation:

3/4x+3x+2-1/2=

=15/4x+3/2

6x+30-8x-16=

=6x-8x+30-16=

= - 2x+14

The Answer is 2x + 14

EXPERT HELP: I'LL GIVE BRAINLIEST:

Answers

Hello,

The answer would be D

Hope this helped :)

Answer:

i think it b

Step-by-step explanation:

Can I please get help? I'm not really good with density and stuff and find it confusing.

Answers

Number 1) 2g/ml

Number 2)  3.6g/ml

Number 3)  1.45g/ml

Number 4)  2.8g/ml

Number 5)  50g

Number 6) 1.5ml

3,4/6 simplified plz hury plz plz banlyest

Answers

34/6 simplified is 17/4
but if u were saying 4/6 then it’s 2/3

Help plz :((
I'll give brainliest

Answers

For A. the muddy water will slowly begin to decrease because it's been left out in the sun, some of the water will begin to evaporate.

(I don't know about B, or C, but I tried my best on A.)

Make sure to put in your own words. :)

What is the average percent of time a student spend sleeping and doing homework?
NEED HELP ASAP PLEASE!

Answers

No answer for you........

...........

Answer:

41%

Step-by-step explanation:

All of those percentages need to add up to 100

8 + 8 + 13 + 13 + 25 + 33 = 100

Ok...so now that we made sure they all add up to 100, all you need to do is combine the percentage of students sleeping and doing Homework, to get the full percentage for both.

Homework = 8%

Sleeping = 33%

8 + 33 = 41

So the percent of time a student spends and doing homework is 41%.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

what is 6 1/5-4 1/4
please help

Answers

Answer:

2 1/12

Step-by-step explanation:

Answer: 2 1/12

Hello! I'm typing this because it said "Needs to be at least 20 characters long". Have a great day!

1. Thad bought 8 notebooks that cost $3.79 each. If he gave the cashier a $50 bill, how much change did he get back from the purchase?
2.Lucy purchases a car for $16,314.40. If she makes a payment each month for the next 40 months, how much will she pay each month. (enter your answer as $dollars.cents)

Answers

Answer:

Step-by-step explanation:

1. Cost of each notebook = 3.79

Cost of 8 notebooks = 3.79 x 8 = 30.32

Amount gave to cashier = 50

Change = 50 - 30.32 = 19.68

407.86
Og. Cost - $16,314.40
Months - 40
I divided $16,314.40 by 40 and got $407.86

Lucy will pay $407.86 dollars each month for 40 months.

Explain how each part of the equation 9=3(x+2) is represented for 9

Answers

Answer:

because there's an equals sign and if you want the answer x=1

Step-by-step explanation:

because 9=3x+6 cancel out 6, 3=3x divided on both sides, 1=x

Answer:

x=1

Step-by-step explanation:

Help

A) 9
B)4
C)9.5
D)8

Answers

Answer:

its 8

Step-by-step explanation:

Answer:

D. 8

good luck, hope this helps :)

Triangle FEG is similar to triangle IHJ. Find the value of x.

PLEASE ANSWER!!!!

Answers

Answer:

x=24

Step-by-step explanation:

60/45=36/x+3

4/3=36/x+3

108=4x+12

96=4x

x=24

Answer:

24

Step-by-step explanation:

the triangle on the left has dimensions 1.25x greater than the one on the right, because the bottom side of the triangle measures 45 units, but it measures 60 on the right. knowing this you can find that the side length on the left of the right triangle is 27, so x + 3 must be 27. x=24

pls answer the picture

Answers

Answer:

8 because if you take a row away from the total, you have 8, and that's how many are hidden

Step-by-step explanation:

Answer: there are eight blocks hidden in the cup.

Step-by-step explanation:

seeing that we don’t know how many blox are in the cup The cup would be a variable in this situation.

x + 4 = 12 cubes

to find your answer you would’ve solve for X, a.k.a. the cup.

x + 4 = 12 cubes

first you would do the inverse operation of addition so instead of adding four  you subtract four from four, so that it cancels out.  Whatever you do to one side you have to do to the other side so you would have to subtract 4 from The previous 12 cubes.

X = 12 - 4

and your final answer would be 8 cubes

x = 8

there are eight blocks/cubes hidden in the cup

The temperature in degrees Fahrenheit, F, is related to the temperature in degrees Celsius, C, by the equation
F=9/5 C+32
1.In the Sahara desert, temperatures often reach 50 degrees Celsius. How many degrees Fahrenheit is this?

2.In parts of Alaska, the temperatures can reach -60 degrees Fahrenheit. How many degrees Celsius is this?

3.There is one temperature where the degrees Fahrenheit and degrees Celsius are the same, so that C=F. Use the expression from the equation, where F is expressed in terms of C, to solve for this temperature.

Answers

1 is 122
2 is -51.1111F
3 is F=9/5c+32

The temperatures are in 50° Celsius, -60° Celsius and  -40° Celsius when the temperatures are 122° Fahrenheit, -76° Fahrenheit and -40° Fahrenheit respectively.

What is the temperature?

Temperature is a measurement of an object or material's warmth or coldness and an expression of thermal energy.

Given, the conversion expression of degrees Fahrenheit to degree Celsius.

The expression is,

F = (9/5)C + 32

For the option 1,

C = 50° Celsius

Then F = 9 x 50/5 + 32

           = 90 +32

           = 122° Fahrenheit

For the option 2,

C = -60° Celsius

Then F =  9 x -60/5 + 32

           = -108 + 32

            = -76° Fahrenheit

For the option 3,

C = F

Then F = 9F / 5 +32

         F - 9F/5 = 32

         -4F / 5 = 32

           F = -160/4

           F = -40° Celsius.

Therefore, the temperatures are 122° Fahrenheit, -76° Fahrenheit and -40° Fahrenheit when the temperatures are in 50° Celsius, -60° Celsius and  -40° Celsius respectively.

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What is -3x-5 = 16
I'm stuck on a simple problem

Answers

Answer:

-7

Step-by-step explanation:

-3x-5=16

-3x-5+5=16+5

-3x=21

-3x/-3=21/-3

x=-7

Answer:

x=-7

Step-by-step explanation:

-3x-5=16

Add 5.

-3x=21

Divide by -3.

x=-7

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