A octagonal pyramid has a base with area of 225 sq in, and a height of 20 in. What is its volume?
Answers
Answer:
The volume of a pyramid is:
v = (1/3)Bh, where B is the area of the base and h is the height.
So, V = (1/3)(225)(20) = 1,500
Conclusion: The volume is 1,500 cubic inches.
Eddie-G…
Step-by-step explanation:
Related Questions
Stacy and Neil painted 280 ft2 of their living room wall with 4/5 gallon of paint. How many square feet can they paint with 4 gallons of paint?
Answers
Answer:
56
Step-by-step explanation:
Divide 280 by 4/5 and get 14 then multiply by 4 and get 56
Answer:
1400 ft2
Step-by-step explanation:
if 280 ft2 comes from 4/5 of 1 gallon of paint, then do 280 x 4, because their are 4 gallons of paint. after you x that it will be 1120 ft2. but the extra 1/5 paint from all 4 of the gallons comes out to 4/5 so add 280 ft2 to that 1120 ft2.
it comes out to 1400 ft2.
It takes about 20 hours to drive from Columbus to Houston which is about 1180 miles. What is the unit rate?
Miles per hour
Answers
Answer:
it would be 59 miles per hour
Step-by-step explanation:
\(1180/20=59\)
Part 1
You will need to measure five different people. Record your measurements on a piece of paper. Using a tape measure or ruler, measure the length (in inches) of a person’s left foot and then measure the length (in inches) of that same person’s forearm (between their wrist and elbow). Refer to the diagrams below. You will have two measurements for each person.
(An easy way to measure the length of a foot is to have your subject stand on a piece of paper. Then, trace their foot and measure the outline once they move off the paper.)
To measure the forearm, measure inside the arm, between the wrist and the elbow.
Part 2
Organize your data and find the rate of change.
Create a table of the measurements for your data. Label the forearm measurements as your input and the foot measurements as your output.
Select two sets of points and find the rate of change for your data.
Describe your results. If you had to express this relation as a verbal statement, how would you describe it?
Part 3
Compare rates of change.
The equation below can be used to find the length of a foot or forearm when you know one or the other.
(length of the foot) = 0.860 • (length of the forearm) + 3.302
If you let y = length of the foot and x = length of the forearm, this equation can be simplified to
y = 0.860x + 3.302.
Using this equation, how long would the foot of a person be if his forearm was 17 inches long?
What is the rate of change of the equation from Part A?
Compare the equation from Part A to your data. Are they the same? Which has a greater rate of change? Why do you think the values are different?
Is the relation in your data a function? Why or why not? Could the equation in Part A represent a function? Why or why not? Explain your answer.
Answers
Answer:
i will study about it and tell u
okk frd
Do a and b please. Thanks.
Answers
Answer:
(a).
Trapezium:
(25+100)÷2×50
=62.5×50
=3125m²
Parallelogram:
100×30
=3000m²
Total:
3125+3000
=6125m²
(a) Explanation:
Area of Trapezium=
(a+b)÷2×h
Area of Parallelogram=
length×wide
(b).
6125÷100×190
=61.25×190
=£11637.5
Explanation:
I did the test
Can anyone help with this problem please?
Answers
answer is square root of 116
Answer: D) √116 units
Step-by-step explanation:
√(4^2 + 10^2) = 10.770
√116 = 10.770
hey y’all i just need help with the shading part please help! if you can do this on a piece of paper or show how do it, i’ll give you a brainlest and bonus points thank you.
Answers
Please help simplify this
\(\frac{\sqrt{16} }{\sqrt{8} }\)
Answers
![Please help simplify this[tex]\frac{\sqrt{16} }{\sqrt{8} }[/tex]](https://i5t5.c14.e2-1.dev/h-images-qa/answers/attachments/Sm0h0avUxpI5DpBjDAjvAyzFoisi6UlM.png)
In decimal form 1.41421356
Use the expression below to answer the following question:
x + 2x + 12y + 4
What are the coefficients of this expression?
Answers
Please help I need it now, asap it's due in 5 mins.
Answers
Answer:
25
Step-by-step explanation:
\(105+3x=180 \\ \\ 3x=75 \\ \\ x=25\)
Answer:
The answer is 25 degrees
Step-by-step explanation:
If you subtract 180 - 105 then you get 75.
Then you divide it by 3.
One circle is 360 degrees thus half of it is 180.
If you know one angle is 105 degrees then subtract it from 180.
If the number is 3x then you have to divide it by 3 to get x alone.
Hope it helps! :)
Please Help!! It’s due in 20 minutes!
Answers
Answer:
Hence, 70 people out of 100 who had attained the previous year
Step-by-step explanation:
If this is completely proportional, you'd make the formula
\( \frac{420}{600} = \frac{x}{100} \)
Cross multiply
\(42000 = 600x\)
Then we just divide by 600
\(x = 70\)
pls answer ASAP i need help
Answers
(x + 1)^2
What is the value of x when 1/3 x = 9 1/3
Answers
Answer:
x=28
Step-by-step explanation:
1/3x=9 1/3
1/3x=28/3
x=28
Answer:
28
Step-by-step explanation:
1/3x=9 1/3
1/3x=28/3x
Cutting 3 in both sides
x=28
....................
Answers
Answer:
?
Step-by-step explanation:
help me i dont understand this
Answers
1. matched with 3x2 + 2x − 1
2. matched with 9x2 + x + 1
3. matched with 4x2 + 2x
4. matched with 3x2 - x - 1
Robert was paid a 25% commission on sales. If he was paid $240.00, what were his total sales?
Answers
Answer:
240.00 = Sales * .25
Sales = 240 / .25
Sales = 960.00
Step-by-step explanation:
A group of seventh graders and a group of teachers at a local middle school were asked how many siblings they each have. The dot plots below show the results. Students A dot plot titled Students. A number line going from 0 to 9 labeled number of siblings. There are 2 dots above 0, 4 above 1, 7 above 2, 5 above 3, 2 above 4, and 0 above 5, 6, 7, 8, and 9. Teachers A dot plot titled Teachers. A number line going from 0 to 9 labeled Number of siblings. There is 1 dot above 0, 3 dots above 1, 2 above 2, 4 above 3, 5 above 4, 3 above 5, 1 above 6, 0 above 7, 1 above 8, and 0 above 9. When comparing the shape of the two sets of data, what conclusion can someone draw? The students tend to have fewer siblings than the teachers. The teachers tend to have fewer siblings than the students. Both the students and the teachers have a wide range of siblings. Both sets of data have the same shape. the answer is- a. The students tend to have fewer siblings than the teachers.
Answers
Answer:
A. The students tend to have fewer siblings than the teachers.
Step-by-step explanation:
First we need to draw the dot plots correctly. If you count both sides they have 20 each.
Now, clearly none have fewer nobody here yet has more or less but going on to the next step.
Multiply exactly the number of siblings times how many people chose that many siblings. Ex: 2 (siblings) times 7 (people who has 2 siblings) = 14. And so on.
On the Student A, we get a total of 41 people having sibling, if you count the 0's then there were a total of 43 people. But now on the Teacher's A Dot Plot, we have a total of 68 people, if you include the 0 then we have a total of 69.
So the answer is A. The students tend to have fewer siblings than the teachers.
Answer:
The sum is A
Step-by-step explanation:
Just ma duty to help the community
I need help, please quickly
Answers
Answer: The ratio is 18:3
Step-by-step explanation:
Answer: 6 to 1
Step-by-step explanation:
A ratio refers to a fraction. In this case the question asks how many players to coaches there are.
The word "to" means that is where the fraction bar goes.
Players/Coaches
There are 18 players and 3 coaches.
18/3
18 can be divided by 3, 6 times so the fraction can be simplified to
6/1 meaning there are 6 players for every coach.
PLEASE HELP :) *if this makes it quicker, its due today btw ;(*
Ramon earns $1,900 each month and pays $53.50 on electricity. To the nearest tenth of a percent, what percent of Ramon's earnings are spent on electricity each month?
Answers
Answer:
3.1% of Ramon's salary is utilized for electricity rent.
Step-by-step explanation:
Ramon's monthly salary =$1,735
Electricity rent =$53.10
Percentage of earnings spent on electricity:
=53.101,735×100
=3.1%
hope it helps !
Continue the division of 1/6 for 2 more decimal places. What do you notice? Answer in a complete sentence.
Answers
Answer:
1/6 is equal to 0.166666667; 1/6 is 0.17 if rounded to the hundredth place.
Step-by-step explanation:
divide 1 by 6.
Round it up
(pay attention to the nimbers) A submarine must descend at an average rate of at least 10 feet per minute for 5 minutes. The table shows how many feet the submarine descends in the first 4 minutes. How many feet must the submarine descend in the fifth minute? (show your work)
Answers
Submarine must descend by 12 feet in the fifth minute.
Average of the data:Average of a data set is calculated by dividing the sum of terms by the number of the terms of the set.
From the table given in picture,
Let the distance descended by submarine in 5th minute = x feet
Average distance descended by the submarine = \(\frac{\text{Total distance distended}}{\text{Duration or time}}\)
= \(\frac{8+10+8+12+x}{5}\)
= \(\frac{38+x}{5}\) feet per minute
Statement given in the question → "Submarine must descend at an average rate of at least 10 feet per minute"
So the inequality for the statement will be,
\(\frac{38+x}{5}\geq 10\)
38 + x ≥ 50
x ≥ 50 - 38
x ≥ 12
Therefore, submarine must descend 12 feet in the 5th minute.
Learn more about the average here,
https://brainly.com/question/14194794?referrer=searchResults
Can someone please help me I don’t understand how to do it
9) Find the values of the following when x = 1, 2 and 3:
a. X 2 +2x-3
b. x 3 +5
C.X2 +5x+4
Answers
Answer:
Step-by-step explanation:
x^2 + 2x - 3 = (1)^2 + 2(1) - 3 = 0 for x = 1
(2)^2 + 2(2) - 3 = 5 for x = 2
(3)^2 + 2(3) - 3 = 12 for x = 3
x^3 + 5 = (1)^3 + 5 = 6 for x = 1
(2)^3 + 5 = 13 for x = 2
(3)^3 + 5 = 32 for x = 3
x^2 + 5x + 4 = (1 )^2 + 5(1) + 4 = 10 for x = 1
(2)^2 + 5(2) + 4 = 18 for x = 2
(3)^3 + 5(3) + 4 = 46 for x = 3
5 for x= 2
12 for x
Serious. SOLVE CORRECTLY AND SHOW WORKKKK! Explain how you got it throughly.
Answers
Step-by-step explanation
Does the movement of air masses make weather prediction harder or better?
Here is some text 2 help u with the question:
The reason is they must take into account several large-scale phenomena. Each unique phenomena is governed by multiple variables and factors. For example, supercomputers must consider how the sun will heat the Earth's surface and how air pressure differences will form winds. They consider how water-changing phases (from ice to water or water to vapor) will affect the flow of energy. They even have to try to calculate the effects of the planet's rotation in space. This rotation moves the Earth's surface beneath the atmosphere. Small changes in any one variable in any one of these complex calculations can profoundly affect future weather.
Answers
Answer:
I am confused. Can u explain it to me please?
Step-by-step explanation:
Choose the graph of the linear equation. Y = X + 6
Answers
Answer:
A
Step-by-step explanation:
y = x + 6
Compare to y = mx + b.
b = 6
m = 1
A slope of 1 is a positive slope, so the line has to go up to the right.
A value of 6 for b means the y-intercept is 6.
Answer: A
pls help! i need this done in less than 20 minutes!
Answers
Answer:
46 units
Step-by-step explanation:
So first of all you do 8 × 2 which equals 16 units, then you do 15 × 2 which equals 30 units, then you 30 + 16 which equals 46 units. Hope this helps.
is the answer
The price of a pair of pants was reduced from $30 to $12. By what percentage was the price of the pair of pants reduced?
(Please also add your work, I'd like to understand it a bit clearer)
Answers
I need the answers to all of them please :(
Answers
Answer:
2) 0.081
3) 0.741
4) 71.3
5) 0.0422
6) 79.9971
7) 0.00265
8)0.0935
Answer:
1 - 89.974
2 - 0.081
3 - 0.741
4 - 71.3
5 - 0.0422
6 - 79.9971
7 - 0.00265
8 - 0.0935
. ( 9 × 1 , 000 ) + ( 7 × 100 ) + ( 1 × 10 ) + ( 3 × 1 ) + ( 4 × 1/10 ) What is this as a decimal number?
Answers
Answer:
9713.4
Step-by-step explanation:
We have to use the B O D M A S theorem to solve this.
That is,
B → Brackets
O → Of
D → Division
M → Multiplication
A → Addition
S → Subtraction
Accordingly,
\(\sf ( 9 * 1 , 000 ) + ( 7 * 100 ) + ( 1 * 10 ) + ( 3 * 1 ) + ( 4 * \frac{1}{10})\\\\ 9000+700+10+3+\frac{4}{10} \\\\9713+0.4\\\\9713.4\)
Which statements are true? All parallelograms are rhombuses. All rectangles are squares. All rectangles are parallelograms. All squares are rectangles.
Answers
Answer:
A.
Step-by-step explanation:
Hope this helps! :)
Scott wanted to make note cards by cutting
pieces of paper in half. Before starting he
got two more pieces to use. When he was
done he had 14 half-pieces of paper. With
how many pieces did he start?