Answers
first one:
The surface area of a pyramid can be found using the formula:
Surface Area = (1/2) x Perimeter of Base x Slant Height + Base Area
Since the side lengths of the base are equal, the perimeter of the base is:
Perimeter of Base = 4 x Side Length
Perimeter of Base = 4 x 9 = 36 feet
To find the slant height, we can use the Pythagorean theorem:
Slant Height^2 = Height^2 + (1/2 x Side Length)^2
Slant Height^2 = 12^2 + (1/2 x 9)^2
Slant Height^2 = 144 + 20.25
Slant Height^2 = 164.25
Slant Height = 12.81 feet
The base area can be found using the formula for the area of a square:
Base Area = Side Length^2
Base Area = 9^2 = 81 square feet
Plugging in the values into the formula for surface area:
Surface Area = (1/2) x 36 x 12.81 + 81
Surface Area = 218.16 square feet
So the surface area of the pyramid is 218.16 square feet.
second one:
The surface area of a pyramid can be found using the formula:
Surface Area = (1/2) x Perimeter of Base x Slant Height + Base Area
Since the side lengths of the base are equal, the perimeter of the base is:
Perimeter of Base = 4 x Side Length
Perimeter of Base = 4 x 8 = 32 meters
To find the slant height, we can use the Pythagorean theorem:
Slant Height^2 = Height^2 + (1/2 x (Side Length1 + Side Length2))^2
Slant Height^2 = 3.5^2 + (1/2 x (8 + 4))^2
Slant Height^2 = 12.25 + 36
Slant Height^2 = 48.25
Slant Height = 6.94 meters
The base area can be found using the formula for the area of a square:
Base Area = Side Length^2
Base Area = 8^2 = 64 square meters
Plugging in the values into the formula for surface area:
Surface Area = (1/2) x 32 x 6.94 + 64
Surface Area = 107.52 square meters
So the surface area of the pyramid is 107.52 square meters.
Related Questions
57. A rectangular room measures 12 1/2 feet by 15 1/3 feet. It is divided into three equal parts.
Calculate the area of one of those parts.
Answers
12 1/2 x 15 1/3=
Then divide your answer by 3.
I hope this helped you out (:
please help me. i need answers asap. please correct answers
Answers
Answer:
1.) 6
2.) -1
3.) 36
4.) 1/3
5.) 90
Step-by-step explanation:
1.) -12/a
-12/a -> -12/2
=6
2.) a+ (-b)
a+(-b) -> 2+(-3)
=-1
3.) 3a (12-2b)
3a(12-2b) -> 3(2) (12-2x3)
6(12-6)
6(6)
=36
4.) 2a-c/b
2a-c/b -> 2(2)-5/3
4-5/3
=1/3
5.) 3abc
3abc-> 3x2x3x5
=90
H e l p m e e e e ee e e e
:( T a u r u s
Answers
Answer:
40 cm^3 is the answer
Step-by-step explanation:
5x2x4
5x2x4 = 40
please help me rn .........
Answers
Given x = 4
=> 3(4)+1 = 13
The answer is 13.
I hope it helps.
Please mark as brainliest , it helps.
Answer:
13
Step-by-step explanation:
3x4+12+1+13
What is the balance point of the data set?
Answers
Answer:
3.5
Step-by-step explanation:
Find n. 10/25 2/n pleaaase
Answers
Answer:
n represents 5
Step-by-step explanation:
10 divided by 5 = 2
do the same operation for 25...
25 divided by 5 = 5
Hence, n represents 5 here!Answer:
5
Step-by-step explanation:
becaus 10/25 is .4 and 2/5 is .4
answer plsssssssssssssss
Answers
Answer:
1005.3 [tex]ft^{3}[/tex]
Step-by-step explanation:
V=π r^2 h = π · 42· 20 ≈ 1005.30965 ---> 1005.3
Answer:
the answer to this question should be 1004.8 because first you need to use this formula to find the volume of a cylinder which is V=TTr^2h so remember the radius is half of the diameter.
So the half of 8 is 4 so 4 is the radius but remember that 4 is to the power of 2 in the exponent so the answer should be 16 because you multiplied 4 times 4 equals 16.
Then we need to multiplied 16 times 3.14 and 20 and when we do that we get an answer of 1,004.8 so 1004.8 feet^3 is the correct answer.
Step-by-step explanation: :DDDDD give brainliest to the first people that answer first than me if you want and have a great day.
Please help!!
Use the drop-down menus to explain which student is correct.
Use the ruler. Click the Ruler button below.
sides of equal
Click the arrows to choose an answer from each menu.
The shape has Choose... of parallel sides and choose...
length. The shape is Choose....
Choose...
correct
60
Curiem Ano Alved. These many portion there may not be reproduced or shared in any manner without prin consent of Curriculum Associates
Answers
The shape has 2 pairs of parallel lines and 4 sides of equal length. The shape is a rhombus. Jabar is correct.
Also, I-Ready? Is that like a practice thing or the actual test? Because there is no way that you can take a picture of that in school
some math probssssssss
Answers
Answer:
m = 8
Step-by-step explanation:
turn it into a square and then you can divide 48 by 6 and the answer is 8
Answer:
the answer for the first one is 8 because we need to divide the area which is 48 by 6 to get the answer which is 8 so we multiply 6 times 8 to check if it is 48 and yes sir it is.
In the second one you need to divide 42 by 6 not by 4 and when you do that you get 7 so we multiplied 6 times 7 to check if the area is 42 and yes it is sir again so the first one is 8 and the second one is 7
Step-by-step explanation:
Can someone pls help me? I haven't been working on this since I was on vacation :/
Answers
Answer:
m=36 degrees
Step-by-step explanation: if the lines p and q are parralel and inside angles are equal y will be equal to u
Step-by step:
Alternate interior angles are =
Vivek is making a perpendicular segment in the middle of segment JR.
First, he drew an arc centered at J.
Then, he used the same radius to draw an arc centered at R.
Next, he found the points where the arcs intersected.
What MUST be true?
Line J R. Point P is above the line and point N is below the line. Arcs centered at J and R go through points P and N.
CLEAR CHECK
P is the same distance from N as J is from R.
PN is equal to JR.
Any point on PN will be equidistant from J and R.
NR is half of JR.
Answers
Answer:
Step-by-step explanation:
The correct answer is :Line J R. Point P is above the line and point N is below the line. Arcs centered at J and R go through points P and N.
Ron is planning for the back-to-school rush at his store. Notebooks are sold in boxes of 42. Last year he estimated that he would sell 168 notebooks, but he sold 200 notebooks. How much was Ron’s error?
–42
-32
32
168
the answer is -32
Answers
Answer:
its -32 but you allready have that
Step-by-step explanation:
PLEASE HELP QUICK. (WIlL GIVE BRAINLIST) Erina runs 200 meters each day during the first week of her training. She plans to increase the distance she runs each week. Erina's training goal is to run 150% of the distance she ran each day in the previous week. She will run the same distance each day in a week. There are approximately 27.34 yards in 25 meters. If Erina meets her goal, how many yards will Erina run each day in the third week of her training? Round the answer to the nearest hundredth. Enter the answer in the box _____ yards
Answers
During the first week of her training, she runs 200 meters. On the second week, she plans to run 50% more.
Now, how do you calculate this?
To increase 200 meters by 50%, multiply by 1.5
The second week she pans to run 450 meters.
Since there are only 3 weeks, do it again!
The thrid week, she plans to run 675 meters.
Since she runs the same ammount each day of the week, the calculation is simple.
7(200) + 7(450) + 7(675)
In these three weeks, she runs 9275 meters.
OR, she runs 10143.26 yards.
I GIVE BRIANLEST!!!!!!!!!!!!!!!!!!!!!!!!!!
Use the graph to find the relationship between the two variables. Select all that apply.
The variables are 2 and 7.
The variables are dollars and hours.
Hours is the independent variable and dollars is the dependent variable.
Dollars is the independent variable and hours is the dependent variable.
The relationship is x = 3.50y.
The relationship is y = 3.50x.
Answers
By using the graph, all of the true statements that apply include the following:
B. The variables are dollars and hours.
C. Hours is the independent variable and dollars is the dependent variable.
F. The relationship is y = 3.50x.
What is a proportional relationship?In Mathematics and Geometry, a proportional relationship is a type of relationship that produces equivalent ratios and it can be modeled or represented by the following mathematical equation:
y = kx
Where:
y represents the cost in dollars.x represents the number of hours.k is the constant of proportionality.Next, we would determine the constant of proportionality (k) by using the various data points from table D as follows:
Constant of proportionality, k = y/x
Constant of proportionality, k = 3.5/1 = 7/2 = 10.5/3
Constant of proportionality, k = 3.50
Therefore, the required linear function is given by;
y = kx
y = 3.50x
Read more on proportional relationship here: brainly.com/question/28350476
#SPJ1
Missing information:
On a coordinate plane, a line goes through points (1, 3.5), (2, 7), (3, 10.5). The x-axis is labeled hours and the y-axis is labeled dollars. Use the graph to find the relationship between the two variables. Select all that apply.
the distance on the map between priya's house is 6.4 cm. If the scale on the map is 1 cm : 2.5 km, what is the actual distance in kilometres
let y kilometres be the actual distance
Answers
please help quickly round to the nearest tenth!
Answers
Answer:
3217 cm3
This is the answer in cubic centimiters.
Answer:
the answer is 130
Step-by-step explanation:
sorry if I'm wrong. T-T
19. Find an equation of the parabola that satisfies the given conditions.
Focus F(2,0), directrix x=-2
Answers
Here, the focus of the parabola is (2,0) and directrix is x=−2.
So, equation of parabola will be y2=4ax
Here,a=2.So, Equation becomes,
y2=4∗2x⇒y2=8x, which is the required equation of parabola.
( brainliest ) Answer A, and B.
Answers
X- 3/4 =3/4 Please help me I’m been stuck on this
Answers
Answer:
The answer us x=0 sorry for the short explanation
Answer: x= 0
Step-by-step explanation:
x= 0
Based on the graph, what is the dependent variable, the equation relating the two variables, and how far will the dragonfly travel in 24 hours if it continues to fly at the same speed?
The dependent variable is time, the equation is y = 22x, and the dragonfly will travel 528 miles.
The dependent variable is time, the equation is x = 22y, and the dragonfly will travel 1,056 miles.
The dependent variable is distance, the equation is y = 22x, and the dragonfly will travel 528 miles.
The dependent variable is distance, the equation is x = 22y, and the dragonfly will travel 1,056 miles.
Answers
Answer:
Based on the graph, what is the dependent variable, the equation relating the two variables, and how far will the dragonfly travel in 24 hours if it continues to fly at the same speed?
The dependent variable is time, the equation is y = 22x, and the dragonfly will travel 528 miles.
The dependent variable is time, the equation is x = 22y, and the dragonfly will travel 1,056 miles.
The dependent variable is distance, the equation is y = 22x, and the dragonfly will travel 528 miles.
The dependent variable is distance, the equation is x = 22y, and the dragonfly will travel 1,056 miles.
Step-by-step explanation:
CAN SOMEONE HELP ME WITH THIS?!
Answers
Answer:
0.36 or 36%
Step-by-step explanation:
Finding the Mean Probability
Number of total green marbles / Number of total experimentss1 + 5 + 3 / 4 + 12 + 99/250.36 or 36%Answer:36%
Step-by-step explanation:
Finding the Mean Probability
Number of total green marbles / Number of total experimentss
1 + 5 + 3 / 4 + 12 + 9
9/25
36%
Don't remind me that im loosing points for this :D
H e l p Thank youuu
Answers
Answer:
[tex]\boxed{\sf volume = 320 \ ft^3}[/tex]
Explanation:
Volume of triangular prism = 1/2 × Base × Height × Length
Identify the following:
Base: 6 2/3 ftHeight: 8 ftLength: 12 ftFind Volume:
1/2 × 6 2/3 × 8 × 121/2 × 640320 ft³[tex]Area \: of \: triangle = ½ × height× width \\ area = \frac{1}{2} \times 8 \times \frac{20}{3} \\ area = \frac{{ \cancel8} {}^{ \: \: 4} }{ \cancel2} \times \frac{20}{3} \\ area = \frac{80}{3} {ft}^{2} [/tex]
Now for volume :-
Volume = area of triangle (2D ) × length
[tex]volume = area \times length \\ vol = \frac{80}{3} \times 12 \\ vol = \frac{80}{ \cancel3} \times { \cancel{12}} {}^{ \: \: 4} \\ volume = 320 {ft}^{3} [/tex]
Answer:- volume = 320 ft³can someone help me please
Answers
Answer:
x=2cm
Step-by-step explanation:
By using pythagoras theorem:
H²=P²+B²
x²=1.6²+1.2²
x=2cm
Explain your answer.
Answers
Answer:
60%
Step-by-step explanation: Because the graph flattens out at about 60% meaning that that is the most likely percentage.
53 POINTS and brainly
Which data set contains an outlier?
{6.1, 6.8, 7.3, 8, 9.1, 9.5}
{14, 15, 16, 20, 22, 25, 51}
{30, 31, 31, 32, 34, 37}
{11, 12, 12, 12, 13, 13, 14, 14}
Answers
Owen has monthly expenses that total $3189 what is the hourly wage working 40 hours per week needed to pay for his expenses assume there are 4 weeks in one month
A. $39.86
B. $72.73
C. $18.11
D. $19.93
Answers
Answer:
D
Step-by-step explanation:
4 times 40 is 160 and 3189 divided by 160 is 19.93
have a great day
Janice drew 1 card from a standard deck of 52 cards. What fraction of the deck of cards is red.
A. 1/3
B. 1/2
C. 3/4
Answers
3/y-3 = 12/y+3
Find the value of "y"
please help me...
Answers
hope this helped!
!; I have about 10 minutes left and this is my last question,, please help.
Answers
Answer:
x = 3
y = 1
Step-by-step explanation:
So to solve this by addition we have to add both x's, y's and the numbers on the other side of the equal sign:
x + y = 4
x - y = 2
Both y's will cancel out because we are subtracting y from y
Adding 4 +2 = 6
2x = 6 (adding both x gets 2x)
x = 3
Now that we found x we can find y by plugging it into either equation:
3 + y = 4
y = 1
We can check these in both equations:
3 + 1 = 4 4 = 4
3 - 1 = 2 2 = 2
These answers are then proven correct!
I hope this helps! Good luck!
Y=1. You have to add both x and y to get your answer
Find the area in the shaded region.