Answers
Answer:
the rectangle by 170 square inches, let me know if im right :)
Step-by-step explanation:
Related Questions
1
Andrea has 3 tiles.
One is a regular octagon, one is a regular pentagon
and one is a regular hexagon.
Andrea thinks the 3 tiles will fit together perfectly,
as shown in the diagram.
Show calculations to prove that she is wrong.
Answers
You then times this number by 180 to get the sum of interior angles for that shape
Let’s start with the octagon
It has 8 sides so you need to do 6*180 which gives you 1080
You divide this by 8 which gives you 135
This is one angle in the octagon
If you do this for all of the shapes you get 135, 108 and 120 degrees
If you add these all up you get 363 which is 3 degrees off of 360 which would be a perfect fit
Andrea is incorrect. Given 3 tiles will not fit together perfectly.
Angles formed at a point: Sum of all angles around a point is 360°.
As shown in the picture,
If the tiles join perfectly at a point, sum of all angles around the joining point should be 360°.
Expression for the measure of the interior angle of a polygon,
Interior angle of a polygon = [tex]\frac{(n-2)\times 180^\circ}{n}[/tex]
Interior angle of a pentagon = [tex]\frac{(5-2)\times 180^\circ}{5}=108^\circ[/tex]
Interior angle of a hexagon = [tex]\frac{(6-2)\times 180^\circ}{6}=120^\circ[/tex]
Interior angle of an octagon = [tex]\frac{(8-2)\times 180^\circ}{8}=135^\circ[/tex]
To prove that the given tiles fit together perfectly → Sum of all the angles around the common point should be 360°
Sum of all interior angles = 108° + 120° + 135°
= 363°
Therefore, given tiles will not fit together perfectly.
Learn more about the interior angles of a polygon here,
https://brainly.com/question/12871621?referrer=searchResults
The cylinder and the sphere below have the same radius and the same volume. What is the height of the cylinder?
Answers
Answer:
Height of cylinder (h) = (4/3)R
Step-by-step explanation:
Given:
Radius of cylinder (r1) = R
Height of cylinder (h) = H
Radius of sphere (r2) = R
Volume of cylinder = volume of sphere
Find:
Height of cylinder (h) = H = ?
Computation:
[tex]Volume\ of\ cylinder = volume\ of\ sphere\\\\ \pi (r1)^2h =\frac{4}{3} \pi (r2)^3\\\\\pi (R)^2h =\frac{4}{3} \pi (R)^3\\\\ h=\frac{4}{3} (R)[/tex]
Height of cylinder (h) = (4/3)R
You invest money at 6% interest compounded annually for 3 years. If the future value of your investment is $1800, how much money did you invest? Show your work.
Answers
Answer:
Step-by-step explanation:
FV = P(1+r)^t
1800 = P(1+0.06)^3
1800 = P(1.06)^3
P = 1800/(1.06)^3 = $1511
A store buys a bag of chips
from a distributor for $0.50 and marks it
up 150%. How much does the store sell the
bag of chips for?
Answers
Answer:
Step-by-step explanation:
75p
Answer:
The answer is $0.75
Step-by-step explanation:
150 percent *0.50 =
(150:100)*0.50 =
(150*0.50):100 =
75:100 = 0.75
If 4x^2 – bx + 81 is a perfect square trinomial. Then the value of b is
Answers
Answer:
b = 36
Step-by-step explanation:
perfect square: a² - 2ac + c²
4x²- bx + 81 = (2x)² - bx + 9² = (2x)² - 2*(2x)*(9) +9²= (2x)² - 36x +9²,
so b = 36
MAX POINTS. Brainliest for best answer and please dont give me some dumb answer. Please explain as well.
Answers
-6x-32/5=14 because the 32 has nothing to do with the problem the correct answer is -35/4, -30/5
A math teacher gave her students two tests. On the first test, 80% of the class passed the test, but only 30% of the class passed both tests.
What is the probability that a student passes the second test, given that they passed the first one?
Answers
55% because you add 80% and 30% which is 110% and divide that by 2.
I = $18, P = $200, 1
18 months find the annuanl interest rate
Answers
Answer: 6% per year
Step-by-step explanation:
SI = PRT / 100
18 = (200 x r x 1.5)/ 100
the equation x^3 - 6x = 72 has a solution between 4 and 5.
Use a trial and improvement method to find the solution correct to one decimal place,
Answers
Answer:
4.6
Step-by-step explanation:
There are a number of "improvement" techniques that can be used to improve an estimate of a solution to a polynomial. Some of them use the polynomial itself to form the iterator function.
IteratorThere are a number of ways we can solve the given equation for x. Often, at least one of these will converge when used for improving the estimated value of x.
x₁ = (x^3 -72)/6 . . . . . . . add 6x-72, divide by 6
x₂ = 72/(x^2 -6) . . . . . . . factor out x and divide by its coefficient
x₃ = ∛(72 +6x) . . . . . . . add 6x and take the cube root
The first two of these iterators tend to diverge. For x = 4.5, they give ...
x₁ = (4.5³ -72)/6 = 3.1875
x₂ = 72/(4.5² -6) = 5.0526
Both of these stray out of the given interval of [4, 5].
However, the third one tends to converge, so can give us a useful approximation in one iteration:
x₃ = ∛(72 +6×4.5) ≈ ∛99 ≈ 4.6261
Second iterationApplying this again, we get ...
x ≈ ∛(72 +6·4.6261) ≈ 4.6378
The approximate root to 1 decimal place is 4.6.
__
Additional comment
One of the quickest converging iterators is that provided by Newton's method. For finding the solution to f(x) = 0, it uses ...
x₁ = x -f(x)/f'(x) . . . . . . . where f'(x) is the first derivative
For this problem, we can define ...
f(x) = x^3 -6x -72 ⇒ f'(x) = 3x^2 -6
x₁ = x -(x^3 -6x -72)/(3x^2 -6) = (3x^3 -6x -x^3 +6x +72)/(3x^2 -6)
x₁ = (2x^3 +72)/(3x^2 -6)
Then for x = 4.5, the "improved" solution is ...
x₁ = (2(4.5³) +72)/(3(4.5²) -6)) = 254.25/54.75 = 339/73 ≈ 4.6438
A second iteration gives ...
x ≈ 4.639026 . . . . accurate to 5 decimal places
With this iterator, the number of accurate decimal places tends to double with each iteration.
Find the slope of the line that passes through the points (-1, -2) and (-9, -2)
Answers
Slope = change in Y / change in x
Slope = (-2 - -2) / (-9 - -1)
Simplify:
Slope = 0/-8 = 0
Slope = 0
The graph shows the numbers of quarts of yellow paint that must be mixed with different numbers of quarts of red paint to make a certain shade of orange paint.
Based on the graph, write an equation that shows the relationship between the number of quarts of yellow paint, y, and the number of quarts of red paint, x, needed to make the shade of orange paint.
Enter your equation in the space provided. Enter only your equation.
Answers
Answer:
[tex]y =\frac{2}{5}x[/tex]
Step-by-step explanation:
To find the equation, we need to use two points, which can be (0,0) and (5,2).
First, we find the slope
[tex]m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} } =\frac{2-0}{5-0}=\frac{2}{5}[/tex]
Therefore, the slope for the equation is 2/5.
Now, we use the point-slope formula to find the equation
[tex]y-y_{1} =m(x-x_{1} )\\y-0=\frac{2}{5}(x-0)\\y =\frac{2}{5}x[/tex]
Therefore, the equation that represents this situation is [tex]y =\frac{2}{5}x[/tex]
Pls help. im have such a bad day.
Solve.
2x + 1 = 3x – 4
A.x = 1
B.x = 5
C.x = –5
D.x = –1
Answers
Answer:
b
Step-by-step explanation:
PLEASE HELP SOON I ONLY NEED HELP WITH NUMBER 18 PICTURE IS INCLUDED
Answers
Critical thinking? We're in trouble. It's hard for me to tell what grade this is.
Stem and leaf is fine but let's just write out the data.
Rich: 35 37 41 42 43 44 45 48 50 55 n=10
Will: 42 43 44 44 46 47 47 48 49 50 n=10
Use measures of center and measures of variation ...
The three measures of center typically used are the mean, the median and the mode.
Rich's sum = 440 so Rich's mean = 440/10 = 44
Rich's middle values are 43 and 44 so Rich's median = 43.5
All Rich's scores are unique so he doesn't really have a mode.
Will's sum = 460, Will's mean = 460/10 = 46
Will's middle numbers are 46 and 47 so median 46.5
Will's data has two modes tied, 44 and 47.
OK, so far these say Rich is a better golfer; he has lower mean and median scores than Will. (Low score is better in golf.)
Let's look at measures of variation. I'm guessing that they don't want to you calculate standard deviation. So we'll do range and mean absolute deviation.
The range is max-min.
Rich's range is 55-35=20
Will's range is 50-42=8
Will is more consistent.
Rich's mean is 44, his scores are here; let's calculate absolute deviation:
Score 35 37 41 42 43 44 45 48 50 55
AbsDev 9 7 3 2 1 0 1 4 6 11
Rich's deviations add to 44 so his MAD is 4.4
Will's mean is 46
Score: 42 43 44 44 46 47 47 48 49 50
AbsDev 4 3 2 2 0 1 1 2 3 4
The sum is 22, Will's MAD is 2.2
Based on the measures of variation, Will is a more consistent golfer. He's on average worse than Rich, but he always manages to stay pretty close to his average while Rich is all over the place.
Still I'd go with Rich for the tournament.
PLZ ANSWER ASAP!!!!!!!!!!
Answers
Answer:
Step-by-step explanation:
For the first statement, we need to find the percentages of sold hats. The percentage of white hats sold was (120/200) * 100 = 60% and the percentage of black hats sold was (210/300) * 100 = 70%. The first statement is "The musical group sold 60% of the white hats and 70% of the black hats."
The second statement asks us to compare the 2 percentages, and since 70% > 60%, the statement would be "A greater percentage of black hats were sold." Hope this helps!
Factor 4x^2-52x+160 completely
(would be great if all work was shown, please) ☺☺
Answers
Answer:
4(x - 5)(x - 8)
Step-by-step explanation:
Given
4x² - 52x + 160 ← factor out 4 from each term
= 4(x² - 13x + 40) ← factor the quadratic
Consider the factors of the constant term (+ 40) which sum to give the coefficient of the x- term (- 13)
The factors are - 5 and - 8, since
- 5 × - 8 = + 40 and - 5 - 8 = - 13, thus
x² - 13x + 40 = (x - 5)(x - 8)
Then
4x² - 52x + 160 = 4(x - 5)(x - 8)
(11*10^11)(12*10^12)
Answers
Answer:
3,200,000,000,000,000,000,000,000
Step-by-step explanation:
(11 × [tex]10^{11}[/tex])(12×[tex]10^{12}[/tex])
(11 × 100,000,000,000)(12×1,000,000,000,000)
(1,100,000,000,000)(12,000,000,000,000)
3,200,000,000,000,000,000,000,000
Answer:
3,200,000,000,000,000,000,000,000
Step-by-step explanation:
(11 × )(12×)
(11 × 100,000,000,000)(12×1,000,000,000,000)
(1,100,000,000,000)(12,000,000,000,000)
3,200,000,000,000,000,000,000,000
WILL GIVE BRANILIEST ANSWER!! 100 POINTS!! How important are the "special features" of a polynomial graph? When would you need to find all of the precise values of special features of the graph of a polynomial function? When would it be okay to estimate these values? Give examples in context, if possible.
Answers
Answer:
The special features of a polynomial graph are sharp corners but in these types of graphs it also has smooth curves. Polynomial graphs functions also display graphs that have no breaks.Curves with no breaks are called continuous.
Step-by-step explanation:
Which equation represent inverse variation between x and y
Answers
The equation representing the inverse relation is given by -
x = 15k/y.
What is the general equation of a Straight line?
The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.
We have a equation that represent inverse variation between x and y.
The equation for inverse relation comes from the equation of straight line. We can write -
x = m/y
xy = m
for m = 15k -
xy = 15k
x = 15k/y
Therefore, the equation representing the inverse relation is given by -
x = 15k/y.
To solve more questions on straight lines, visit the link below-
brainly.com/question/20400984
#SPJ2
Jack recently planted a beanstalk and decided to measure its height each day. Jack plotted the following points on a graph, where the x-axis represented the day and the y-axis represented the height of his new beanstalk: (0,0); (1,2); (2,4); (3,6); (4,8); (5,10).
Which of the following correctly interprets the average rate of change?
A. Jack's beanstalk grew 2 units every day.
B. Jack's beanstalk grew 2 units every three days.
C. Jack's beanstalk grew 1 unit every day.
D. Jack's beanstalk grew 1 unit every two days.
Answers
Answer: A
Step-by-step explanation:
Jacks beanstalk grew 2 units everyday
Answer: a.
Step-by-step explanation:
Each units grows by two units every day.
sid and micah solve the equation below:
[tex]\frac{1}{2} (6x-10) = 2x+1[/tex]
sid's first step results in [tex]3x-5= 2x+1[/tex]
micah's first step results in [tex]6x-10 =4x+1[/tex]
a) Micah is correct
b) sid is correct
c) neither of them are correct
d) they are both correct
Answers
Which is the graph of f(x) = StartRoot x EndRoot?
Answers
Answer:
B
Step-by-step explanation:
On a coordinate plane, an exponential function increases in
quadrant 3 into quadrant 4 and approaches y = 0. It goes through
(negative 1, negative 2) and crosses the y-axis at (0, negative 0.25) ⇒ last answer
HOPE IT HELPS ....
What is the approximate volume of the tube? Round to the
nearest whole cubic centimeter.
A cylindrical cardboard tube with a diameter of 8
centimeters and a height of 20 centimeters is used to
package a gift
20 cm
1,005 cm
1,340 cm
O 3,351 cm
O 4,021 cm
• 8 cm
Mark this and retum
Next
Submit
Answers
Answer:
The approximate volume of the tube is 1,005 cm³
Step-by-step explanation:
To find the volume of the tube, we will follow the steps below:
First, write the formula for calculating the volume of a cylinder
volume of a cylinder = πr²h
where r is the radius and h is the height of the cylindrical cardboard tube
from the question given, height is equal to 20 centimeters and diameter = 8 centimeters but diameter = 2r, this implies that r = d/2 hence radius r =8/2 = 4 centimeters
π is a constant and is ≈ 3.14
we can now proceed to insert the values into the formula
volume of a cylinder = πr²h
≈ 3.14 × 4²× 20
=3.14 × 16× 20
≈1,005 cm³ to the nearest whole cubic centimeter.
The approximate volume of the tube is 1,005 cm³
Answer:
A
Step-by-step explanation:
edge 2021
A blueprint for a building includes a rectangular room that measures 3 inches wide and 5.5 inches long. The scale for the blueprint says that 1 inch on the blueprint is equivalent to 10 feet in the actual buildingBelow give the dimensions of this rectangular room in the actual building.
What is the width of the building?
16.5 feet
30 feet
55 feet
What is the length of the building?
16.5 feet
30 feet
55 feet
Answers
Answer:
width of the building = 30 feet
Length of the building = 55 feet
Step-by-step explanation:
On blue print:
Width = 3 inches, length = 5.5 inches
scale factor = 10 inches
Therefore, actual dimensions of the building would be as given below:
width of the building = 3 * 10 = 30 feet
Length of the building = 5.5 * 10 = 55 feet
Find the mean of the following data set.
42, 45, 58, 63
52
42
47
Answers
Answer:
~49.9
Step-by-step explanation:
To get the mean, we must add all the numbers then divide by the amount of numbers there were.
42 + 45 + 58 + 63 + 52 + 42 + 47 = 349
Since we have 7 numbers we can do
349/7 ~ 49.9
Answer: 49.8 (50 if rounded to the nearest ones place)
Step-by-step explanation: First, let's put the number from greatest to least...and we also have to add all the numbers...
42 + 42 + 45 + 47 + 52 + 58 + 63 = 349
Lastly, we have to divide the total by how many numbers there are on the data set...there's 7
349 ÷ 7 = 49.8 (50 if rounded to the nearest ones place)
Therefore, the mean is 49.8 or 50, I hope this helps!
How many inches are in 3 feet?
A. 4 inches
B. 15 inches
O c. 24 inches
D. 30 inches
E. 36 inches
Answers
Answer:
e. 36 inches
Step-by-step explanation:
there are 12 inches in a foot 3 times 12 is 36
Answer:
Your correct answer is Option E. 36 inches
Step-by-step explanation:
Solve the equation.
9x + 5 = 113
8
12
14
15
Answers
Answer:
x=12
Step-by-step explanation:
9x+5=113 then subtract 5 from both sides
then you get 9x=108 then divide both sides by 9 to get x=12
Answer:
x = 12
Step-by-step explanation:
9x + 5 = 113
Subtract 5 from each side
9x + 5-5 = 113-5
9x = 108
Divide each side by 9
9x/9 = 108/9
x = 12
PLEASE HELP URGENT
Suppose that the functions r and s are defined for all real numbers x as follows.
r(x) = x + 5
s(x) = 3x + 1
Write the expressions for (r * s)(x) and (r + s)(x) and (r - s)(4) evaluate .
Answers
Answer:r*s = 168
Step-by-step explanation: (2x-1)(6x) = 12 x^2 - 6x
r(s(x)) = 2 (6x) - 1 = 12 x - 1
r(x) - s(x) = (2x-1) - 6x = -4x -1
r(x) = s(x) when 2x-1 = 6x or x = -1/4
r(4) = s(4) never
(r*s)(4) = 12 x^2 - 6 x = 12*16 - 24 =168
You have a total of 32 coins, dimes and nickels, that are worth $2.55. How many of each do you have?
Answers
Hi!
I'm happy to help you today!
You would have 25 Dimes and 1 nickel!
This is because
1 Dime = 10 Cent's
1 Nickel = 5 Cent's
So if you add them up like so, you get the amount of $ 2.55!
-LimitedLegxnd
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Can u help me with this pls
Answers
Answer: Angle B= 31.6
Step-by-step explanation:
Use SOH CAH TOA
TanB=14.1/22.9
Which statement describes Axum's economy?
Axum's economy was strong due to the rich resources of the surrounding deserts
Axum had a weak economy because Axum had conquered the Kingdom of Kush
Axum's economy was strengthened by connections withyhe Roman Empire and Asia
Axum had a weak economy because Axum did not have access to water
Answers
Answer:
Its C on Edg2020
Step-by-step explanation: