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Related Questions
help please! geometry help needed.
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Answer:
83 in^3
Step-by-step explanation:
We will need to find the volume of the cube, and then subtract the volume of the pyramid to find the space between.
Volume of pyramid = lwh/3 = 41.67
Volume of cube = lwh = 5*5*5 = 125 Subtract these 2 to get
125-41.67 = 83.33
Please let me know if this helped <3
A right triangle has legs of length 146 cm and 105 cm. What is the length of the hypotenuse of the right triangle? Enter the answer, rounded to the nearest tenth, in the box. cm
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Answer:
179.8cm
Step-by-step explanation:
Use the pythagorean theorem a^2+b^2=c^2
146^2+105^2=c^2
Square the numbers
21316+11025=c^2
Add
32341=c^2
Get the square root of the number on the left side
179.8=c
The hypotenuse's length is 179.8cm.
The average natural gas bill for a random sample of 26 homes in the 19808 zip code during the month of March was $305.30 with a sample standard deviation of $46.50. The 80% confidence interval around this sample mean is ________.
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First find degrees of freedom = sample size - 1
Or: df = 26-1 = 25
Now subtract confidence int by 1 and divide by two to make it two tailed. Remember normal distribution looks bell-shaped and we are only looking on one side for our CI.
So: (1-0.8)/2= 0.2/2=0.1 which is our alpha
Now we need to use T-distribution table that should be found in textbook or online.
For 25 df and an alpha of 0.1 I get 1.316.
Some t-dist tables will even have the confidence intervals given DF on the bottom.
Now we have to divide sample Standard deviation by sample size to find the Standard error. This basically is to look for SD of all sample means around population mean, but more on that can be found online.
So: se= 46.5/sqrt(26)
Se= 9.119 let’s call it 9.12
Now multiply standard error by value from t-dist table: 9.12*1.316 = 12.0019 let’s call it 12.
So now to find confidence interval of 80% subtract to find lower bound and add to find upper bound from given mean.
Upper: 305.3 + 12 = 317.3
Lower: 305.3 - 12 = 293.3
find x Finding an angle measure given extended triangles
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Answer:
[tex]x = 34[/tex]
......
......
...
ab - bc - 3bd
Factored form
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Answer:
b(a-c-3d)
Hope this helps
Answer:
b(a-c-3d)
Step-by-step explanation:
Solve 3s > 36. Graph the solution.
The solution is
can someone help plsss
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Answer:
12
Step-by-step explanation:
3s ≥36
divide both side by 3
s ≥ 12
and if you were to graph it, closed circle on 12 going towards bigger numbers, since s is greater than or equal to 12
hello people ~
Question:
The total surface area of a cylinder
= 2πrh + πr²
⤑True [_]
⤑False[_]
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Answer:
False
Step-by-step explanation:
It's only 2 Pi r
Answer:
False
Step-by-step explanation:
Total Surface Area of Cylinder = 2πr(r+h)
Further if you solve it you will get
→ TSA of Cylinder = 2πr² + 2πrh
So, correct answer is False .
Some Additional Points
Volume of Cylinder = πr²hLateral Surface Area of Cylinder=2πrhwhere,
π is 22/7 or 3.14
h is height of cylinder
r is radius of cylinder
Answer these two please I am providing brainliest
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You didn't include the actual question lol
What’s the simplified expression
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Answer:
1/144
Step-by-step explanation:
1/(2⁴ * 3²)
1/(16*9)
1/144
naty used 91.36 gallons of water over 2.3 days what is the average amount of water naty used?
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Two bicyclists are traveling along the same road. Bicyclist A's distance, d, from a certain town after h hours Given by the equation
d = 11.5h + 5
Bicyclist B's distance from the same town is shown in the graph .
Which THREE statements are TRUE?
A
B is traveling 1 mile per hour faster than A.
B
After 2 hours, A will have traveled a total of 28 miles.
С
B started from the town, while A started 5 miles from the town.
D
After 5 hours, the two bicyclists will be the same distance from the town.
E
When the two bicyclists reach the same point. A will have traveled 5 more miles than B.
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The correct statement are statements B and C
Distance time graphsGiven the following equation for the distance of Bicyclist A expressed as:
d = 11.5h + 5
After 1 hour for A
d(1) = 11.5 + 5
d(1) = 16.5
For bicycle B, the distance traveled after 1 hour is 12.5 miles from the graph. Hence B is not traveling 1 mile per hour faster than A.
After 2 hours for A;
d(2) = 11.5(2) + 5
d(2) = 23 + 5 = 28 miles
Hence after 2 hours, A will have traveled a total of 28 miles.
From the graph, we can see that B started from the town (origin), and from the equation, A started from 5 miles from town (y-intercept is 5)
Hence the correct statement are statements B and C
Learn more on the distance-time graph here: https://brainly.com/question/13877898
PLEASE ASAP PLEASE
Four lines are shown on the grid above
A)(i) write the equation of line L1
(ii) write the equation of line L2
(iii)write the value of (m) and the value of (n) for the line (y=mc+n)
(iv)write the value (p) and (q) for the line y=px+q
B) which of the letters A to K lie in the region where
(i) x >=2. y>=mx +n. and y>=px+q
(ii) y<=2. y<=mx+n. And y<=px+q
C)what is the maximum value of x+y in the region G
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The lines L1 & L2 and the equations y = mx + n & y = px + q are illustrations of linear equations
The equation of line L1This is a vertical line that passes through the x = 2
So, the equation of line L1 is x = 2
The equation of line L2This is a horizontal line that passes through the y = 2
So, the equation of line L2 is y = 2
The values of m and n in y = mx + nThe line y = mx + n passes through points (6,3) and (0,0)
This means that n = 0 i.e. the y-intercept.
The value of m is calculated as follows:
[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
This gives
[tex]m = \frac{0- 3}{0 - 6}[/tex]
[tex]m = 0.5[/tex]
So, the values of m and n in y = mx + n are 0.5 and 0, respectively.
The values of p and q in y = px + qThe line y = px + q passes through points (6,3) and (0,12)
This means that q = 12 i.e. the y-intercept.
The value of p is calculated as follows:
[tex]p = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
This gives
[tex]p = \frac{12- 3}{0 - 6}[/tex]
[tex]p = -1.5[/tex]
So, the values of p and q in y = px + q are -1.5 and 12, respectively.
The letters in the region x >=2. y>=mx +n and y>=px+qThe above region represent the upper region between y=mx +n, y=px+q and line L1
The letter in this region is letter H
The letters in the region y <=2. y<=mx +n and y<=px+qThe above region represent the lower region between y=mx +n, y=px+q and line L2
The letters in this region are letters A and E
Read more about linear equations at:
https://brainly.com/question/14323743
Factor 60-36w to identify the equivalent expressions
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Answer:
12(5 - 3w)
Step-by-step explanation:
60 - 36w
The GCF of 60 and 36w is 12.
60 - 36w = 12(5 - 3w)
Leo invests $2,000 at an interest rate of 4%, compounded quarterly.
How much is the investment worth at the end of 3 years?
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[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2000\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &3 \end{cases} \\\\\\ A=2000\left(1+\frac{0.04}{4}\right)^{4\cdot 3}\implies A=2000(1.01)^{12}\implies A\approx 2253.65[/tex]
) Genie’s parents planted a garden that was 9 feet long and 6 1
2
feet wide. Kylie’s parents had more space, so they planted a
garden that was 36 feet long and 6 1
2 feet wide. Without drawing
a picture or doing the multiplication, decide how many times larger
Kylie’s garden is. Explain how you know
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Answer:
36/9 = 4 times larger 9x4 =36
common denominator is 9
Step-by-step explanation:
Patty wants a triangular garden in her backyard to grow vegetables. She plans to use three pieces of edging that measure 7 feet, 10 feet and 8 feet. In at least two complete sentences, answer the following questions: a) Will her garden be in the shape of a right triangle? b)Why or why not?
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Answer: Yes.
Step-by-step explanation: With a triangle, the hypotenuse, or the longest side, would be on the bottom. The legs, or the other two sides, pretty much build off of that hypotenuse, which makes it a right triangle.
Have a great day! :)
27) Electric vehicles often have been proposed as an environmentally sound alternative to the gasoline engine for transportation. In response to state initiatives, several car manufacturers now include electric vehicles among their available models. In spite of these state initiatives, the penetration of electric vehicles into the transportation sector of the United States, as well as other countries, remains modest. (a) Identify and describe two environmental benefits to using electric vehicles in place of gasoline-powered engines for transportation. (b) Estimate the potential reduction in petroleum consumption (in gallons of gasoline per year) that could be achieved in the United States by introducing electric vehicles under the following assumptions: 1. The mileage rate for the average car is 25 miles per gallon of gasoline. 2. The average car is driven 10,000 miles per year. 3. The United States has 150 million cars. 4. 10 percent of United States cars could be replaced with electric vehicles. (c) Some people have suggested that electric vehicles only shift the emission of air pollutants from dispersed sources to point sources. Explain and defend or refute this statement. (d) Propose two potential new United States government policies that would encourage the widespread use of electric vehicles. Explain.
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It can be deduced that the environmental benefits of using electric vehicles are decreased levels of carbon monoxide and carbon dioxide.
What are the environmental benefits of using electric vehicles?
It improves human health by decreasing rates of headaches, drowsiness. A decrease means less global warming, decreased greenhouse effect, as well as decreased acid precipitation.
The potential reduction in petroleum consumption will be:
= (150 million cars) × (10,000 miles per year)/25 miles per gallon × 0.1
= 6 billion
Electric vehicles only shift the emission of air pollutants from dispersed sources because most electric cars are powered by an electrical generating source identified as using combustion such as fossil fuels and coal.
Some incentives that would encourage the use of electric vehicles include mandated production for electric vehicles, reduced tolls, etc.
Learn more about an electric vehicle on:
https://brainly.com/question/1425757
REALLY EASY, REALLY NEED HELP
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My bad VectorFundament20, sheesh
Answer:
y=10x
Step-by-step explanation:
So y is basically 10 times x because each y value, 10, 20, 30 is coming from multiplying the x value by 10. For example, 0 = 10* 0, 10 = 10*1, 20 = 10*2, 30 = 10*3.
The dimensions of a solid block of cheese in the shape of a triangular prism are shown below.wich of these is the best estimate of the volume of the block of cheese in cubic centimeters
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Answer:
174.19 cm3 i am not sure though.
Step-by-step explanation:
Doctors recommend that teenagers sleep between 9 and 912 hours each night. Melody and Wilmer construct a box plot to display sleep data collected from two samples of students. Do these data support the petition to delay the school starting time so school starts 1 hour later? Explain
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Answer:
Yes because I can see people very sleep-deprived and even if 7 hours is not enough, it's better than 6. For the people who sleep 9 and a half hours, they have 1 more hour to get ready. The median is 8 which most likely means, most of the students will be able to sleep the recommended amount with the extra hour.
Step-by-step explanation:
The just skates sporting goods store advertises that all in-line skates are on sale for 20% off the regular price. Find the sale price of a pair of skates that cost $160
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Answer: $32 is the discount
Step-by-step explanation: i got it right
Answer:
128. It will take away 32$ from 160
Step-by-step explanation:
20% of 160 is 32. 160 - 32 = 128 which will be the cost of the pair of skates.
You move down 6 units. You end at (10, 4). Where did you start?
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Answer:
(10,10)
Step-by-step explanation:
coordinates are (x,y)
x is horizontal(left and right), y is vertical (up and down)
going down 6 means subtracting 6 from the second number
lets reverse that to go up and add 6 back
4+6=10
so the original point was (10,10)
If you move DOWN, then that means you are moving in the "y" direction (up and down).
Thus, you are moving the unit "4" not "10". Since you are moving down, you must add to know where your starting position is. You add "4" and "6" together to make "10".
Answer:
You start at (10,10)
Write your own explicit formula. List the first 4 terms and solve for the 10th term using the formula. (show your work)
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To keep it easy and simple
Hope it helps.
A brainliest is always appreciated.
An airplane is traveling at 400 miles per hour. Which equation can be used to find the
total distance the plane will travel in h hours?
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Answer:
400h=mi
Step-by-step explanation: 400 hours = miles which is an equation above.
A middle school took all of its 6th grade students on a field trip to see a symphony at a theater that has 2940 seats. The students left 35% of the seats in the theater vacant. How many 6th graders went on the trip?
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Answer:
1,911 students I think
Step-by-step explanation:
if you multiply 2,940 by 35% (or multiply it by 0.35) you get 1,029, then you subtract 1,029 from 2,940 to get 1,911
Please correct me if I'm wrong
- Isabella makes $14.35 an hour at her company. Skyler, who works at the same company,
earns $16.35 an hour. His hourly wage increases by $0.25 each year.
How many years ago did Skyler start working at this company if his starting pay was the
same as what Isabella makes now? Show your work or explain your reasoning.
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Answer:
It would be 8 years ago.
Step-by-step explanation:
-First, subtract $14.35 from $16.35, which gives you 2.
-Next, remember that $0.25 is a quarter, so how many quarters make $2?
-0.25x4 gives you a dollar, so 0.25x8 gives you 2 dollars.
Hope it helps!
Question is on picture
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Answer:
The expression is half the value of (10 + 12)
Step-by-step explanation:
We see the top part is 10 + 12
The whole thing is a fraction and 2 is in the denominator
You divide your term by your denominator, and diving by 2 is the same as 1/2 if a term.
given that x=6 and y = -4, elevate the each of the following expressions.
5x over 3y + x
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Step-by-step explanation:
Substitute the given values into the expression;
[tex]\frac{5(6)}{3(-4)} +6[/tex]
Multiply;
[tex]\frac{30}{-12} +6[/tex]
Divide;
30 and -12 aren't common factors. To get to 30 with -12, you need to multiply -12 by -2.5.
[tex]-2\frac{1}{2} +6[/tex]
Add;
[tex]3\frac{1}{2} \; or \; 3.5[/tex]
Please help me out, hopefully it’s clear, very urgent. Thanks
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Solution:
We know that:
[tex]\frac{\tex\text{Diamonds}}{\text{Emeralds}} = \frac{3}{4}[/tex]
[tex]\text{Emeralds} = 16[/tex]
Substitute the amount of emeralds in the ratio to find the amount of diamonds.
[tex]\dfrac{\tex\text{Diamonds}}{16} = \dfrac{3}{4}[/tex]
[tex]\tex\text{Diamonds} = \dfrac{3 \times 16}{4}[/tex]
[tex]\tex\text{Diamonds} = \dfrac{48}{4} = 12[/tex]
Thus, there were 12 diamonds.
(a)
girls to boys → 2 : 1
2 → 24
1 → 12
There are total 12 boys.
(b)
diamonds to emeralds → 3 : 4
4 → 16
1 → 4
3 → 12
There are 12 diamonds.
partial product 36 x 5