If we start with a circle with a marked radius line, and turn the circle a bit, the area marked off looks something like a wedge of pie or a slice of pizza; this is called a "sector" of the circle, and the sector looks like the green portion of this picture:
circle with central angle "θ" and radius "r" marked, delineating the sector, which is shaded a light green
The angle marked off by the original and final locations of the radius line (that is, the angle at the center of the pie / pizza) is the "subtended" angle of the sector. This angle can also be referred to as the "central" angle of the sector. In the picture above, the central angle is labelled as "θ" (which is pronounced as "THAY-tuh").
Affiliate
A coin collection consists of nickels, dimes and quarters, and has a total value of $3.30. There are three times as many nickels as quarters. How many coins of each kind are there if the numbers of dimes is three less than the average of the number of nickels and number of quarters
Answer:
18 nickels, 9 dimes, and 6 quarters.
Step-by-step explanation:
Answer:
18 nickels, 9 dimes, and 6 quarters
Step-by-step explanation:
Solve x^2-26=0
Answer: x=+-____
Answer:
x = ± √26
Solution
Step-by-step explanation:
Here is the Answer to your question.
Evaluate the expression when x= -2.
х2+бх+9
Answer:
1
Step-by-step explanation:
x = - 2
x^2 + 6x + 9
= ( - 2 )^2 + 6 ( - 2 ) + 9
= 4 - 12 + 9
= 4 + 9 - 12
= 13 - 12
= 1
The high school is 3.6 inches from the middle school on a map. Each half inch on the map represents 0.4 mile. What is the actual distance between the two schools?
2.88 miles
4.5 miles
7.2 miles
9 miles
Answer:
2.88 miles
Step-by-step explanation:
because 3.6/.5 = 7.2
then 7.2 × .4 = 2.88
18
61°
Find missing side round to nearest tenth
Answer:
x = 9.9 or 10
Step-by-step explanation:
to find missing angle -->
90 + 61 + z = 180
151 + z = 180 *subtract 151 from both sides*
z = 29
to find x -->
tan (29) = x/18 *put tan(29) over 1 then cross multiply*
x = 18 (tan(29))
x = 9.97 --> round up to 10
Geraldo has 3 fewer marbles than Yan Together, they have 21 marbles which equation
represents this situation?
21, where is the number of marbles Yan has
*+ * - $) = 21, where is the number of marbles Geraldo has
*+ (8-2) = 21, where is the number of marbles Geraldo has
*+ * -3) = 21, where a is the number of marbles Yan has
Pls I need alot of help
Grace and her friends are playing a game that uses two dice. Each die is a tetrahedron –
a four‐sided shape with each side an equilateral triangle. Each side of the die contains
one of the digits 1, 2, 3, or 4.
a. Create the sample space of all possible outcomes if you were to roll the two dice
simultaneously. List the digit on the first die first and the digit on the second die
second (i.e. 1,1; 1,2; and so on.) (10 points)
b. What is the theoretical probability that the sum of the two numbers on a roll will
be five? (2 points)
c. If Grace and her friends were to roll the two dice 100 times, how many of the
100 times could they expect to roll the same number on each die? (In other
words, the outcome would be 1,1 or 2,2 or 3,3 or 4,4.) (4 points)
Answer:
Step-by-step explanation:
Very interesting problem. Be thankful it is not a six sided dice.
Part A
1 1
1 2
1 3
1 4
2 1
2 2
2 3
2 4
3 1
3 2
3 3
3 4
4 1
4 2
4 3
4 4
Part B
There are 16 possible out comes
1 4
4 1
2 3
3 2
4 out of the 16 outcomes are possible
P(5) = 4/16 = 0.25
Part C
The theoretical out come would be 4 times
4/16 = 0.25
On a hundred rolls, you would expect to get 25 sets of doubles.
Answer:
The correct answers are:
a.
1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4
3 1 3 2 3 3 3 4 4 1 4 2 4 3 4 4
b.
4 possible outcomes!
c.
25 sets!
Step-by-step explanation:
a.
Try making a probability by using the counting principle method.
1 1 1 2 1 3 1 4 2 1 2 2 2 3 2 4
3 1 3 2 3 3 3 4 4 1 4 2 4 3 4 4
These numbers are the possible outcomes. Each 2 numbers stand for 1 outcome.
b.
16 possible outcomes
1 4 4 1 2 3 3 2
4/16 possible
P(5) = 4/16 = 0.25
c.
The theoretical outcome = 4 times
4/16 = 0.25
25 sets of rolls are expected to be rolled on the same number per 100 rolls.
I hope this helps! Have a good day ;)
Please mark this as brainliest please! I would appreciate it! :)
Let A be the set of all lines in the plane. Define a relation R on A as follows. For every l1 and l2 in A, l1 R l2 ⇔ l1 is parallel to l2. (Assume that a line is parallel to itself). Which of the following is true for R?
A. R is reflexive.
B. R is symmetric.
C. R is transitive.
D. R is neither reflexive, symmetric, nor transitive.
Answer:
Hence, the relation R is a reflexive, symmetric and transitive relation.
Given :
A be the set of all lines in the plane and R is a relation on set A.
[tex]R=\{l_1,l_2\in A|l_1 \;\text{is parallel to}\; l_2\}[/tex]
To find :
Which type of relation R on set A.
Explanation :
A relation R on a set A is called reflexive relation if every [tex]a\in A[/tex] then [tex](a,a)\in R[/tex].
So, the relation R is a reflexive relation because a line always parallels to itself.
A relation R on a set A is called Symmetric relation if [tex](a,b)\in R[/tex] then [tex](b,a)\in R[/tex] for all [tex]a,b\in A[/tex].
So, the relation R is a symmetric relation because if a line [tex]l_1[/tex] is parallel to the line [tex]l_2[/tex] the always the line [tex]l_2[/tex] is parallel to the line [tex]l_1[/tex].
A relation R on a set A is called transitive relation if [tex](a,b)\in R[/tex] and [tex](b,c)\in R[/tex] then [tex](a,c)\in R[/tex] for all [tex]a,b,c\in A[/tex].
So, the relation R is a transitive relation because if a line [tex]l_1[/tex] s parallel to the line [tex]l_2[/tex] and the line [tex]l_2[/tex] is parallel to the line [tex]l_3[/tex] then the always line [tex]l_1[/tex] is parallel to the line [tex]l_3[/tex].
Therefore the relation R is a reflexive, symmetric and transitive relation.
Why would the volumes of the two figures be the same?
Answer:
They would sill be the same because just because the other shape is lopsided doesn't mean its different than the other. They can me moved left or right but they will still have the same volume.
Step-by-step explanation:
As 3D shearing transformations preserves the volume of figure, the volumes of the two figures would be the same.
What is shearing transformation in geometry?"Shearing is the process of slanting a three- dimensional geometrical object in 3-D space either in x, y, or in the z-direction."
For given example,
We can observe that figure 2 is a result of shearing transformation on figure 1.
We know, a three-dimensional shearing transformation preserves the volume of solid figures.
This means, the volume of both the figures is same.
Also, we can observe that the length, width and height of the both figures are equal.
Therefore, the volumes of the two figures would be the same.
Learn more about shearing transformation here:
https://brainly.com/question/23834102
#SPJ2
You and 3 friends are going to the County Fair.
You have a coupon that will save your group
$20. If the total bill to get into the fair was
$100, how much does one regular price ticket
to the fair cost?
Answer:
$120
Step-by-step explanation:
Since after $20 coupon, the price become $100, then before it was
(20 + 100) = $120
Thenks and mark me brainliest :)
Answer:
One regular price ticket cost $40
Step-by-step explanation:
First yo would have to add back the $20 that they saved to the total which would be $120 total and then since that was the total for all 3 of them you would do $120 divided by 3 which would be $40 for each ticket regularly.
ayudenmee plis
El sueldo de los trabajadores de una multinacional sigue una distribución normal con media µ=$2000 y una desviación estándar σ=$600. Si se tomó una muestra de 64 trabajadores, calcular el intervalo de confianza para estimar el sueldo medio poblacional de los trabajadores, con un nivel de confianza del 99%.
Answer:
El intervalo, con un nivel de confianza de 99%, para estimar el sueldo medio poblacional de los trabajadores es de ($1807, $2193).
Step-by-step explanation:
El primero paso es el encuentro de lo [tex]\alpha[/tex], que es la subtracion de 1 por lo nivel de confianza e divididos por 2. Entonces:
[tex]\alpha = \frac{1 - 0.99}{2} = 0.005[/tex]
Ahora, buscamos a z en la tabela Z de manera que z tienga uno p-value de [tex]1 - \alpha[/tex].
Entonces, z con uno p-value de [tex]1 - 0.005 = 0.995[/tex], o sea, z = 2.575.
La margen de error es:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
En que [tex]\sigma[/tex] es la desviación estándar y n es el tamaño de la muestra.
σ=$600. Si se tomó una muestra de 64 trabajadores
Entonces [tex]\sigma = 600, n = 64[/tex]
Margen de error:
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
[tex]M = 2.575\frac{600}{\sqrt{64}}[/tex]
[tex]M = 193[/tex]
El limite inferior es la subtración de la media de la muestra por la margen de error. Entonces 2000 - 193 = $1807.
El limite inferior es la suma de la media de la muestra con la margen de error. Entonces 2000 + 193 = $2193.
El intervalo, con un nivel de confianza de 99%, para estimar el sueldo medio poblacional de los trabajadores es de ($1807, $2193).
The data are from a small moving company that moves people from urban apartment buildings to other urban apartment building in the same or different cities. The company needs assistance in predicting the labor hours for jobs so they can provide more accurate price quotes.
Run two separate regressions using the data in the sections of the spreadsheet titled Regression Model 1 and Regression Model 2. Use a 95% confidence level.
Fill in all the blanks below. Do not round any numbers except for when entering them in the blanks for this quiz, round these numbers to exactly 2 decimal places even if the number has only one or no decimal places. Use commas to separate thousands (e.g., 1225 should be entered as 1,225.00).
Regression Model 1
R Square expressed as a percentage rounded and carried out to two decimal places is ________% and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is _______%. Refer to the spreadsheet embedded in your Module 14 Regression document I provided you to see the calculation and format for answering this next question. The gap between R Square and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is 0.______%.
The overall regression model (was / was not) _______ significant.
Using square footage of 1,500 and mileage of 92, the model estimates that ______ hours of labor would be required, with a margin of error of _________ hours.
Regression Model 2
R Square expressed as a percentage rounded and carried out to two decimal places is _______% and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is _______%. Refer to the spreadsheet embedded in your Module 14 Regression document I provided you to see the calculation and format for answering this next question. The gap between R Square and Adjusted R Square expressed as a percentage rounded and carried out to two decimal places is 0.________%.
The overall regression model (was / was not) __________ significant.
Using square footage of 1,500, mileage of 92, and floors of 71, the model estimates that _________ hours of labor would be required, with a margin of error of ________ hours.
Model Selection
Because the R Square is (higher / lower) _________ in regression model 1 than in regression model 2 and the gap between R Square and Adjusted R Square is (smaller / larger) in regression model 1 than in regression model 2 _________ and the margin of error of the estimated labor hours is (smaller / larger) _________ in regression model 1 than in regression model 2 , we would characterize regression model (1 or 2) ___________ as being the better model.
Answer:
I wish I can read all the text
Can someone help me really please
Answer:
Step-by-step explanation:
question
Answer:
the tank at the pet store
Step-by-step explanation:
5x4x2 = 40
35<40
You want to wrap a gift shaped like the regular triangle prism, how many square inches of wrapping paper do you need to completely cover the prism
Answer: 8.7 in
Step-by-step explanation:
Answer:
8.7inches
Step-by-step explanation:
Plsss help me, ASAP, Thank you
Answer:
[tex]\frac{1}{16}[/tex] [tex]\frac{10}{9}[/tex]
Step-by-step explanation:
a reciprocal is a number that when multiplied by a given number gives 1 as product.
16 * x = 1
x = 1/16
9/10 * x = 1
x = 10/9
Plz help this is due today NO LINKS OR GROSS PICTURES OR I Will REPORT And please show work
Answer: 8 is the total volume i think pls dont judge me if im wrong
Step-by-step explanation:
Find the value of k, such that x² - 4x2 + kx + 4 will leave a remainder of 4 when divided by (x - 1).
A -3
B 8.4
C 0,3
D -4
Can someone help me with this one ASAP
Answer:
k=4
Explanation:f(x)=x3+4x2−kx+1By the remainder theorem, the remainder when dividing a polynomial f(x)by (x−a)
is f(a)In our case, we have a=−1 and we need:0=f(−1)=(−1)3+4(−1)2−k(−1)+10=f(−1)=−1+4+k+10=f(−1)=k+4
Hence k=−4
might have gotten it wrong sorry if so.
plsss help. giving extra points if correct.
i accidentally clicked A so don't think its the answer I wanted.
3. Penny's family decided to go to the Splash Park.
They purchased two adult tickets and two child
tickets. The adult tickets were 1į times the price
of the child tickets and the total cost for all four
tickets was $85. What was the cost of each type
of ticket?
Answer:
21.25
Step-by-step explanation:
because 85$ divided by the 4 tickets is 21.25
Based on the pattern shown, what is 46?
41 = 4
42 = 16
43 - 64
Answer: 44 equals 128
Step-by-step explanation: This is because you do 16 times 4 to get 64, then you double that to 8, so you do 16 times 8 and get your answer 128
HOPE IM RIGHT!
7 has been subtracted from the product of x and 7=
Answer:
7x - 7
Step-by-step explanation:
Product of x and 7 = 7x
7 minus 7x
7x - 7
Hence the expression is :
7x - 7
Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
The sum of 7 and the cube of a number.
The sum of 7 and the cube of a number.
Answer:
Step-by-step explanation:
7 + x³ is the sum of 7 and the cube of a number x
PLEAE HELP ME I REALLY NEED IT!!!!!!!!!
Select the correct answer.
Which phrase best describes taxable income?
Answer:
The correct answer is D.
Step-by-step explanation:
Taxable income is the income that is reached by taxes established by the government, that is, those sums of money from individuals that the government levies with a tax contribution. The so-called deductions are deducted from these sums, with which the apportionment between taxable income and deductions results in the final amount of taxes to be paid.
NO LINKS
Which equation is the equation of the least squares regression line that most closely matches the data set?
Answer:
y = 3.5X - 6921.2
Step-by-step explanation:
Given the data :
X :
1990
1992
1994
1996
1996
Y :
45
51
57
61
75
Using an online regression calculator ; the regression model obtained is : y = 3.5X - 6921.2
Where ; slope = 3.5 ; intercept = - 6921.2
HELPPPPPPP ME PLSSSSSSS
Answer:
answer to your question is 200.96cm^2 but you can round off and write 201cm^2
Step-by-step explanation:
area of circle =pie*(radius)^2
=3.14*(8)^2
=3.14*64
=200.96^2
=201cm^2
Hope it helps u!!
Circle O and circle P are congruent. What can you conclude from the diagram?
Answer:
We can only infer that OA=OB=PD=DE.
Step-by-step explanation:
Since, if two circles are congruent then their radius must be equal.
And, here A and B are the points in the circumference of circle O therefore, the distance of these points from the center O of the circle is the radius of the circle.
So, OA=OB. ( if we join the points O and C then OA=OB=OC)
Similarly, In Circle P, PE= PD. ( if we join the points P and CF then PD=PE=PF).
------------------------------------------------------
Credits to: parmesanchilliwack
A sporting goods store has shoes on sale for 20% off the regular price. Brantley finds a pair of shoes with a regular price of $35. He wants to know the sale price of the shoes. 0) Drag the given information into the table to represent the problem. Regular Price % $ Sale Price Discount % % S $ $35 $ ? 20%
Answer:
$28
Step-by-step explanation:
Given that :
Regular price = $35
Discount = 20%
Sale price = Regular price - Discount on sale
Discount on sale = 20% * regular price
Discount on sale = 0.2 * $35 = $7
Sale price = $35 - $7 = $28
Answer:
Regular price is 35 and discount is 20% and sale price is ?
Regular price is 35 and the discount is 7 and the sale price is 28
Step-by-step explanation:
I did the I-ready already
Suppose that only 2 percent of all people are geniuses. If an IQ test indicates that Albert is a genius, but the test is only accurate 90 percent of the time, then the probability that Albert really is a genius is roughly:
Answer:
P = 1,8 %
Step-by-step explanation:
From the whole population, only 2% are geniuses. But test results, are accurate 90 %. So the probability that Albert really is a genius is:
P = 0,02 * 0,9
P = 0,018 or P = 1,8 %
2+2 brain time yessir
Answer:
Step-by-step explanation:
4 is the correct answer
PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELP
Answer:
2.26
Step-by-step explanation:
The volume of a cylinder is equal to pi*r^2*h
3.14*r^2*25=400
r^2=5.09554140127
r~2.26
Answer:
Step-by-step explanation:
r= roughly 2.26
r= square root v/pi x height