100 points: A small circular mirror has a 2 cm frame around it. The mirror itself is 8 cm in diameter.
if possible show your work :)
(a) Write and simplify an expression for the exact area of the frame.
(b) Find the approximate area of the frame. Use 3.14 to approximate π
Answer:
48π and 150.72
Step-by-step explanation:
Please check out the attached photo. by the way, if anything's confusing, feel free to leave a comment. I'm here to help.
Total diameter:-
8+2+2=8+4=12cmRadius=12/2=6cm
So
Area:-
πr²π6²36πcm²#2
36(3.14)113.04cm²(Exact)show work on how to question
Circumference of a circle = 2 × π × r
And Diameter = 2 r
Therefore using the formula!
Circumference of the circle with diameter 20 foot :
2 × π × 10 = 20 π foot
Circumference of the circle with diameter 5 foot :
2 × π × 2.5 = 5 π foot
Difference between the sand paintings' diameter = 20 π - 5 π = 15 π foot
(06.04 LC)
What is the slope of a line of best fit if its equation is y = −2x + 3?
−2
Negative 1 over 2
1 over 3
3
Answer:
Option (d) is correct.
Slope of given line y = 5x -4 is 5
Step-by-step explanation:
Given equation of line as y = 5x - 4
We have to find the slope of given line.
For the general equation of line y = mx + c , where m is the slope of line and c is the y- intercept.
Slope of line is given by derivative the equation of line with respect to x, that is
Consider the given equation y = 5x - 4
then slope is
Thus, slope of liven line is 5 .
Also, by comparing the given equation with general equation the slope of line is 5 .
Thus, option (d) is correct.
Step-by-step explanation:
Needs help with 8th grade maths.
what are the angles of a triangle with 73, x, x-11?
Answer:
The angles of the triangle are 73, 59, and 48
Step-by-step explanation:
The sum of a triangle's angles must always add up to 180
In order to find out the measure of x we must make an equation where 180=the sum of the angles
180=2x+62
We got the 2x and the 62 from combining like terms
x+x=2x
73-11=62
Now we simply use algebra and try to solo out the x
First, subtract 62 from both sides
118=2x
Then, divide both sides by 2
59=x
x=59
Then plug in 59 with x and this gives you
73, 59, and 48 which all together add up to 180
Describe how the data is dispersed in a box plot with the following data set: 25, 36, 21, 30, 20, 32, 38, 19, 36, 31, 26, 33, 27, 18, 24.
The data is dispersed in a box plot with the data set: 25, 36, 21, 30, 20, 32, 38, 19, 36, 31, 26, 33, 27, 18, 24 is shown in the image attached.
What is the box plotTo create a box plot for the given data set:
25, 36, 21, 30, 20, 32, 38, 19, 36, 31, 26, 33, 27, 18, and 24
One first need to look for some key statistics that will help one make the plot and they are
Minimum value in the data set.First quartile (Q1)Median (Q2)Third quartile (Q3)Maximum value in the data set.So first sort the data in ascending order:
18, 19, 20, 21, 24, 25, 26, 27, 30, 31, 32, 33, 36, 36, 38Minimum: 18 First quartile (Q1): 21.Median (Q2): 27.Third quartile (Q3): 33.Maximum: 38.The lines coming out from the box (whiskers) show the smallest and largest values that are within a certain range around the middle of the data. Any data points that are different from the others and fall outside a certain range are called outliers. These outliers are shown separately on a graph.
The box plot shows us how the data is spread out and gives us information about the average value and any very high or very low values.
Read more about box plot here:
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Please help, Good 15 pt reward.
Answer:
how is annyone going to know that?
Step-by-step explanation:
Answer:
P ≈ 25 units
Step-by-step explanation:
LM = 12 units ( horizontal line )
use the distance formula to find length of other 2 sides.
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = L (- 3, 2) and (x₂, y₂ ) = M (3, 5 )
LM = [tex]\sqrt{3-(-3))^2+(5-2)^2}[/tex]
= [tex]\sqrt{(3+3)^2+3^2}[/tex]
= [tex]\sqrt{6^2+9}[/tex]
= [tex]\sqrt{36+9}[/tex]
= [tex]\sqrt{45}[/tex]
Repeat with (x₁, y₁ ) = M (3, 5) and (x₂, y₂ ) = N (9, 2)
MN = [tex]\sqrt{(9-3)^2+(2-5)^2}[/tex]
= [tex]\sqrt{6^2+(-3)^2}[/tex]
= [tex]\sqrt{36+9}[/tex]
= [tex]\sqrt{45}[/tex]
Then perimeter P is the sum of the 3 sides
P = 12 + [tex]\sqrt{45}[/tex] + [tex]\sqrt{45}[/tex] = 12 + 2[tex]\sqrt{45}[/tex] ≈ 25 units ( to the nearest unit )
brainliest if it is right
Yes because it is the brainliest answer
Answer:
No
Because you need to half the diameter to fit it into the formula. So you would do 7 divided by 2 to get the radius which is 3.5. Then you do 3.5 x pi
Step-by-step explanation:
WILL GIVE BRAINLIEST AND ALSO 5 STARS + 100 POINTS. ANSWER QUICK AND CORRECTLY WITH NO LINKS
Answer:
x = -40
Step-by-step explanation:
Rewrite "(x - 4)/4" in a different way:
⇒ 8 + x/2 = (x - 4)/4 - 1
⇒ 8 + x/2 = x/4 - 4/4 - 1
Simplify the R.H.S:
⇒ 8 + x/2 = x/4 - 1 - 1
⇒ 8 + x/2 = x/4 - 2
Add 2 both sides and subtract x/2 both sides:
⇒ 8 + x/2 = x/4 - 2
⇒ 8 + 2 = x/4 - x/2
⇒ 10 = x/4 - 2x/4
Simplify the R.H.S:
⇒ 10 = x/4 - 2x/4
⇒ 10 = -x/4
Use cross multiplication:
⇒ 10 × 4 = -x
⇒ -(40) = x = -40
Answer:
xx=-40xAnswer
Step-by-step explanation:
Need help Giving crown
Answer:
BBB L U E is showing where some parts are and possible corridnates
Step-by-step explanation:
Need help asap! Max points
Multiply each coordinate with scale factor
A'=(12/6,0/6)=(2,0)B'=(18/6,6/6)=(3,1)C'=(6/6,12/6)=(1,2)Option D
For each function below, find its domain and then determine if the function increasing, decreasing, or constant on each piece of the domain. Sometimes the domain is just one interval, but the function still changes its behavior at some points. s(t)=[tex]\frac{-5}{|t|}[/tex]
The interval on which the function is decreasing is : ( , )
The interval on which the function is increasing is : ( , )
The interval on which the function is constant is : ( , )
Leave unused fields blank.
Answer and explanation:
First, the domain is all real numbers except 0, since x = 0 is the asymptote.
D: x ∊ R, x ≠ 0
or
D: (-∞, 0) ∪ (0, ∞)
The range is everything below y = 0.
R: y < 0
or
R: (0, -∞)
Next, this function is never constant so there are only intervals of increasing and decreasing. The intervals meet at x = 0.
inc: x > 0
dec: x < 9
or
inc: (0, ∞)
dec: (0, -∞)
Janine has 10 pieces of ribbon. She recorded the length of each piece in the line plot below. What is the total length of the four longest pieces of ribbon?
Answer:
44 inches
Step-by-step explanation:
i hope this heped
Please do it without guessing and please give an explanation for the points
Answer:
Here is a dot plot you saw in an earlier task. It shows how long Elena’s bus rides to school took, in minutes, over 12 days.
A dot plot labeled “travel time in minutes.” The numbers 5 through 14 are indicated. The data is as follows. 5 minutes, 0 dots 6 minutes, 2 dots 7 minutes, 1 dot 8 minutes, 3 dots 9 minutes, 3 dots 10 minutes, 2 dots 11 minutes, 0 dots 12 minutes, 1 dot 13 minutes, 0 dots 14 minutes, 0 dots
Step-by-step explanation:
follow the direction you can understand
Please answer this math problem sceenshot below
Answer:
3 and 4 it is 60
is the answer
if you like my answer please like comment and mark me as brilliant
What point is marked on the number line?
Answer:
Step-by-step explanation:
-7/8
can someone help me plsease
Answer:
You must be in 8th grade?
Step-by-step explanation:
For the first one I don't know.
The second one I'm also not sure about.
The third one, the answer is 225 because you will divided 150 by 2 and get the answer of 75 and then multiply 75 by 3 to get the answer of 225.
For the fourth one, you will multiply 5 x 2.5 = 12.5 then you will multiply 12.5 x 20 = 250yd^2.
For the last one you will multiply 2.25 x 22 = 49.5 miles.
A researcher recorded the number of cows on each farm in the county.
Cows per farm
Stem Leaf
2 1 3 5 7
3 0 3 5
4 2 4 9
What is the range of the numbers?
Answer: 0
How: The range is the difference between the smallest and highest numbers in a list or set. To find the range, first put all the numbers in order. Then subtract (take away) the lowest number from the highest. The answer gives you the range of the list.
How do you do this???
Answer:
(a) 136 ft
(b) $680
Step-by-step explanation:
You want to know the perimeter length and the cost of tiling around a pool with the L-shape shown.
(a) PerimeterThe sum of horizontal lengths at the bottom of the pool outline is the same as the length at the top.
The sum of vertical lengths at the left of the pool outline is the same as the length on the right.
The perimeter is the sum of horizontal and vertical lengths of the outline, so is ...
P = 2(40 ft + 28 ft) = 136 ft
The perimeter of the pool is 136 ft.
(b) Tile costThe cost of tile is found by multiplying the cost per length by the length around the pool.
tile cost = ($15/(3 ft))(136 ft) = $680
It will cost $680 to put tiles around the edge of the pool.
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Please help! Due tonight thank you!
Answer:
216 cm squared
Step-by-step explanation:
Bottom: a single 6*6=36
4 sides: 6*5=30 each
Triangles 6 by 5. the formula for a triangle means that 2 of the triangles equals a square
6*5*2=60
36+120+60=216 cm squared
negative fractions on the number line
The point marked on the number line is -3 1/4.
What is Number Line?A number line is a straight line drawn horizontally where the numbers are placed at an equal intervals.
Given is a number line.
A point is marked in between -3 and -4.
In between -3 and -4, the region is equally spaced in to 4 parts.
The point is market at 1/4 distance from -3.
So the point can be written as -3 1/4.
In the decimal form, it is -3.25.
Hence the marked point is -3 1/4.
Learn more about Fractions in Number Line here :
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According to the line plot, how many apples weigh 5/8 of a pound?
5 apples
2 apples
4 apples
3 apples
Answer:
4
Step-by-step explanation:
If you count the X's you should count 4 X's so 4 apples weigh 5/8 pounds
A 1,500 year old sequoia tree measures 1,980 ÷ 10 feet tall. How tall is the tree?
Answer:
198 ft
Step-by-step explanation:
say ty tp my cat
^-^
Pleaseee help I’m so confused
Answer:
25
Step-by-step explanation:
(You can do this differently, but I chose to do it like this)
First, convert the 1816 kilograms to pounds.
1816 kilograms = 4003.595 pounds
Then, we can divide 4003.595 pounds by 160 to figure out how many 160-pound people the balcony can hold.
4003.595 ÷ 160 ≈ 25.02
If the balcony holds 26 people, it will collapse, so the answer must be 25.
I hope this helps and please mark me as brainliest!
A bowl contains candies of the same size in three flavors: orange, strawberry, and pineapple. If the probability of randomly pulling out an orange candy is 2/8, and the probability of randomly pulling out a strawberry candy is 3/8, what is the probability of randomly pulling out a pineapple candy?
A. 3/8
B. 2/8
C. 5/8
D. 6/8
Answer:
A.3/8
Hoped this helped
A parachutist's rate during a free fall reaches 162 kilometers per hour. What is this rate in meters per second? At this rate, how many meters will the parachutist fall during 10 seconds of free fall? Do not round your answers.
rate: (m/s)
distance fallen in 10 seconds:
Step-by-step explanation:
162 kilometers = 162000 meters
1 hour = 3600 seconds.
162,000 meters/3600 seconds=45 meters/second=45 m/s
45*10=450
Joanna draws a scale model of a rectangular table for a carpenter to build. On her drawing, \frac{3}{4}
4
3
of an inch represents 11 foot. In the drawing, the table is 7\frac{1}{2}7
2
1
long.
How long, in feet, will the table be when the carpenter builds it?
Using proportions, it is found that the table will be 110 feet long when the carpenter builds it.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In the drawing, 0.75 inches represent 11 feet. The drawing is of 7.5 inches, and the real dimension is of d, hence the rule of three is given by:
0.75 inches - 11 feet.
7.5 inches - d feet
Applying cross multiplication:
0.75d = 7.5 x 11
d = 7.5 x 11/0.75
d = 110.
The table will be 110 feet long when the carpenter builds it.
More can be learned about proportions at https://brainly.com/question/24372153
The scale model of the table would ensure that the actual table is bigger than the scale model
The length of the table would be 110 feet
How to determine the table length?The scale model is given as:
Ratio = Scale : Actual
So, we have:
Ratio = 3/4 inches : 11 feet
For a table of 7 1/2 inches, we have the following ratio
Ratio = 7 1/2 inches : Actual
Equate both ratios
7 1/2 inches : Actual = 3/4 inches : 11 feet
Express as decimals
7.5 inches : Actual = 0.75 inches : 11 feet
Rewrite as:
7.5 : Actual = 0.75 : 11 feet
Express as fraction
Actual/7.5 = 11 feet/0.75
Multiply both sides by 7.5
Actual = 7.5 * 11 feet/0.75
So, we have:
Actual = 110 feet
Hence, the length of the table would be 110 feet
Read more about ratios at:
https://brainly.com/question/12416132
4.
Lisa is planting a garden. The rows of peas in Lisa's garden are going to be 3 feet long, so she will plant a seed every 3/16 of a foot. Which of these is the same as 3/16?
help helphelp helpe hwlp hwlp
Answer:
0.6
Step-by-step explanation:
You count how many pieces there are in total, and then you subtract the blue pieces from the total which is 3. Then you need to convert 5/8 into a decimal.
PLSSSSSSSSSSHELPPPPPPPPPP
Answer:
Equation: 28-F = N
then if he folded 22 it would be 6
Step-by-step explanation:
Im pretty sure thats right
Hope this helpsss!<3
Answer:
N = 28 - F N = 6
Step-by-step explanation:
N = 28 - F
F = 22
28 - 22 = 6
N = 6
