The circumference of a circle is 14pi cm. What is the radius of the circle? Explain your reasoning.
Circumference = Perimeter
Perimeter of Circle
= 14π
Also,
Perimeter of Circle
= 2πr
Now,
2πr = 14π
r = 14π/2π
r = 14/2
r = 7cm
The circumference of a circle is 14pi cm. Hence, the radius of the circle will be 7 cm.
What is the circumference of a circle?Supposing that a considered circle has its radius of 'r' units.
Then, its circumference is given as:
[tex]Circumference = 2\pi r \: \rm units[/tex]
The radius of a circle is half of its diameter.
The circumference of a circle is 14pi cm.
Circumference = Perimeter
Circumference of Circle = 14π
Also,
Circumference of Circle = 2πr
Now,
2πr = 14π
r = 14π/2π
r = 14/2
r = 7cm
Hence, the radius of the circle will be 7 cm.
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What is the value of x in the equation
5(2x-7)=15x-10?
Answer:
x = -5
Step-by-step explanation:
First distribute the 5 on the right side of the equation.
10x - 35 = 15x - 10
Then subtract 10x on each side
-35 = 5x - 10
Then add 10 on each side
-25 = 5x
Divide 5 on each side to get x
-25 / 5 = -5
I hope this helps! :)
Answer:
[tex]\sf x=-5[/tex]
Step-by-step explanation:
[tex]\sf 5(2x-7)=15x-10\\10x-35=15x-10\\10x-35+35=15x-10+35\\10x=15x+25\\10x-15x=15x+25-15x\\-5x=25\\\cfrac{-5x}{-5}=\cfrac{25}{-5}\\x=-5[/tex]
In ΔGHI, h = 13 inches, i = 77 inches and ∠G=170°. Find the length of g, to the nearest inch.
Show your work plz and thank you :)
Ans
Step-by-step explanation:
254.16inches
Step-by-step explanation:
Using sine rule
g/sin25=510/sin122
Sin25=0.4226
Sin122=0.8480
g/0.4226=510/0.8480
Cross multiply
0.8480g=0.4226 x 510
0.8480g=215.526
Divide both sides by 0.8480
g=215.526/0.8480
g=254.16
The length of g is 70 inches.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
Given,
ΔGHI, h = 13 inches, i = 77 inches and ∠G=170°.
We need to find the length of G
Cosine rule: (for all triangles)
c²=a²+b²-2abcos(C)
=13²+77²-2.13.77.cos(175)
=169+5929-2002cos(175)
=6098-2002(0.598)
=6098-1197.2
c²=4901
Take square root on both sides
c=70.01
G=70.01
Hence, the length of g is 70 inches.
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ASAP PLZ HELP WILL MARK BRAINLIST IF RIGHT
Answer:
[tex]d \approx 2.8[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Point A (-3, 1)
Point B (-1, -1)
Step 2: Find distance d
Substitute: [tex]d = \sqrt{(-1+3)^2+(-1-1)^2}[/tex]Add/Subtract: [tex]d = \sqrt{(2)^2+(-2)^2}[/tex]Exponents: [tex]d = \sqrt{4+4}[/tex]Add: [tex]d = \sqrt{8}[/tex]Simplify: [tex]d = 2\sqrt{2}[/tex]Evaluate: [tex]d = 2.82843[/tex]Round: [tex]d \approx 2.8[/tex]Answer: d = 2.83
Step-by-step explanation: The distance between AB rounded to the nearest tenth is 2.83
Can someone pls answer these if someone gives me a step by step answer gets brainliest and 100pts
Quadrilateral ABCD has been dilated by a scale factor of -5/3, Quadrilateral A'B'C'D' is an enlargement of the pre-image.
Question 17 options:
True
False
Question 18 (5 points)
Quadrilateral MNPQ has been dilated by a scale factor of 1/2, Quadrilateral M'N'P'Q' is an enlargement of the pre-image.
Question 18 options:
True
False
9514 1404 393
Answer:
17. True
18. False
Step-by-step explanation:
A dilation will be an enlargement when the magnitude of the scale factor is greater than 1.
__
17. The magnitude of the scale factor is 1 2/3, a value greater than 1. The dilation is an enlargement (True).
__
18. The magnitude of the scale factor is 1/2, a value less than 1. The dilation is not an enlargement. The statement is False.
HEY I NEED HEL QUICK!!!
A bakery used 25% more butter this month that last month. If the bakery used 240 kilograms of butter last month, how much did it use this month?
Answer:
300kg
Step-by-step explanation:
240(25/100)
240(.25) = 60
25% of 240 = 60, so add that 60 to get an extra 25% for this month
240 + 60 = 300
Total price: $128,500
Tax or tip rate: 5.5%
Answer:
Step-by-step explanation:
5.5% of 128,500
(128500*5.5)/100=7067.50
Please help with math 4r+2+7r
Answer:
11r + 2
Step-by-step explanation:
I combined liked terms which are the r's, then left the 2 alone because you cant combine it with any other number.
what are these three question answers
Answer:
1. B
2. G
3. A
For question 3:
Its closed circle. go to the right
giving brainliest
Sanjay drew a scale drawing of a theater. In real life, the stage is 50 feet long. It is 100 inches long in the drawing. What scale did Sanjay use?
Step-by-step explanation:
50 feet is 600 inches
if on drawing it is 100 and in real life it is 600, then the scale is 100:600 or simply 1:6
Step-by-step explanation:
Here, you may download my answer key to that unit. I did try to section the one you need in that shortcut PDF, but scroll down to the one you need to look at if you can't find it at the top.
What is the radius and diameter of the following circle?
18 cm
Radius =
cm
Diameter =
cm
Report a probl
st
Answer:
radius=9cm
diameter=18cm
Step-by-step explanation:
Answer:
Radius = 9cm
Diameter = 18cm
Step-by-step explanation:
Remember that the diameter of a circle is the distance between two opposite sides (crossing the middle), and the radius is half of that - the distance from the middle to the outside.
the image shows that the diameter is 18cm, so we know that the radius is 18cm/2, which equals 9cm.
Consider 8x2 - 48x = -104.
Write the equation so that a = 1: x2 + __ = __
Complete the square:
x² - 6x + __ -13 + __ = __
Factor the trinomial and simplify:
(x + __ )² = __
Use the square root property of equality to solve (x-3)² = -4.
The solutions are ______.
Answer:
[tex]3+ 2\mathbf{i}[/tex]
[tex]3- 2\mathbf{i}[/tex]
Step-by-step explanation:
Quadratic Equation Solving
We have the equation:
[tex]8x^2-48x=-104[/tex]
Divide by 8:
[tex]x^2-6x=-13[/tex]
Now complete the squares so the left side is a perfect square of a binomial:
[tex]x^2-6x+9=-13+9=-4[/tex]
Factoring the perfect square:
[tex](x-3)^2=-4[/tex]
Taking the square root:
[tex]x-3=\sqrt{-4}[/tex]
The square root of a negative number is an imaginary number:
[tex]x-3=\pm 2\mathbf{i}[/tex]
Solving for x:
[tex]x=3\pm 2\mathbf{i}[/tex]
The solutions are:
[tex]3+ 2\mathbf{i}[/tex]
[tex]3- 2\mathbf{i}[/tex]
Answer:
Keep it simple: got this from above answer...
Answer:
Here's just the answers without all the work for easier reading.
Step-by-step explanation:
First problem answer: x2 + -6 x = -13
Second problem answer: x2 – 6x + 9 = –13 + 9
Third problem answer: (x + -3)² = -4
Fourth problem answer: 3 + 2i
Step-by-step explanation:
Please Help With all 3! Will Give 100 Points + Brainliest!
Answer: I don't see anything. Maybe upload some images?
Step-by-step explanation:
I need help please its easy
Answer:
I dont know what to say you have literally chosen the correct answer hahaha
Step-by-step explanation:
It is a though
But I hope i am helping you
and i hope you ace your test
25% of the students in Mrs. Griffin’s class like chocolate ice cream. If 6 students like chocolate ice cream, how many total are in the class?
Answer: 24 students
Step-by-step explanation:
jen graphs y=1/2+8. which point is on the line.
A. (6, 5),
B. (8, -4),
C. (-8, 2),
D. (4, -6)
Answer:
I just graphed the entire thing and none of them are on the line . . .
li y, ansari a (2014) a bayesian semiparametric approach for endogeneity and heterogeneity in choice models
Marketing variables that are included in consumer discrete choice models are often endogenous. Extant treatments using likelihood-based estimators impose parametric distributional assumptions, such as normality, on the source of endogeneity. These assumptions are restrictive because mis specified distributions have an impact on parameter estimates and associated elasticities. The normality assumption for endogeneity can be inconsistent with some marginal cost specifications given a price-setting process, although they are consistent with other specifications. In this paper, we propose a heterogeneous Bayesian semiparametric approach for modeling choice endogeneity that offers a flexible and robust alternative to parametric methods. Specifically, we construct centered Dirichlet process mixtures (CDPM) to allow uncertainty over the distribution of endogeneity errors. In a similar vein, we also model consumer preference heterogeneity nonparametrically via a CDPM. Results on simulated data show that incorrect distributional assumptions can lead to poor recovery of model parameters and price elasticities, whereas the proposed semiparametric model is able to robustly recover the true parameters in an efficient fashion. In addition, the CDPM offers the benefits of automatically inferring the number of mixture components that are appropriate for a given data set and is able to reconstruct the shape of the underlying distributions for endogeneity and heterogeneity errors. We apply our approach to two scanner panel data sets. Model comparison statistics indicate the superiority of the semiparametric specification and the results show that parameter and elasticity estimates are sensitive to the choice of distributional forms. The CDPM specification yields evidence of multimodality, skewness, and outlying observations in these real data sets.
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When a patient with hypertension takes a particular type of blood pressure medication, the effects on the systolic pressure, S(t), can be measured by the following piecewise defined function: S of t is equal to the piecewise function of 145 minus 6 times t if 0 is less than or equal to t is less than or equal to 5 and 115 if 5 is less than t is less than 9 and 52 plus 7 times t if 9 is less than or equal to t is less than or equal to 12 where t is the time, in hours, since taking the medication. Based on the graph of the piecewise function, if the patient takes the blood pressure medication at 7 a.m., in which interval will their systolic pressure be lowest?
a. 1 p.m. to 3 p.m.
b. 4 p.m. to 6 p.m.
c. 7 a.m. to 9 a.m.
d. 10 a.m. to 12 p.m.
HELP!!! PLEASE!!! ASAP!!! PRE-CALCULUS!!!
Finding the numeric values of the piecewise function, the blood pressure will be lowest in the following time:
a. 1 p.m. to 3 p.m.
How to find the numeric value of a function or of an expression?To find the numeric value of a function, we replace each instance of the variable in the function by the desired value.
In this problem, we have a piecewise function, that is, a function with different definitions based on the input, in which:
The input t is the time in hours after 7 am.The output S(t) is the blood pressure in t hours after 7 am.The numeric values are calculated next, looking at the definition for each value of t.
S(0) = 145 - 6(0) = 145.S(1) = 145 - 6(1) = 139....S(5) = 145 - 6(5) = 115.S(6) = S(7) = S(8) = 115.S(9) = 52 + 7(9) = 115.S(10) = 52 + 7(10) = 122.S(11) = 52 + 7(11) = 129.S(12) = 52 + 7(12) = 136.The lowest values are for t between 6 and 8, that is, between:
7 a. m. + 6 hours = 1 p.m.7 a. m. + 8 hours = 3 p.m.Hence option a is correct.
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Question
Chloe built the expression x - 1 - (2x - 3)
on the expression mat below. Is she correct? And three pieces of evidence in full sentence, the picture of the problem is attached
Answer:
Step-by-step explanation:
/
G(x)=4x-7
Find g(-9)
G(x)=x^2-4x+11
Find g(-7)
Answer:
1) -43 2)-10
Step-by-step explanation:
so for the first one you would enter -9 into all of the x's
g(x)=4x-7
g(-9)=4(-9)-7 ( you would get -36, then you would minus y. so the answer is -43!)
g(-9)=-43
second one would be the same thing
g(x)=x^2-4x+11
g(-4)=-7^2-4(-7)+11
g(-4)=-10
y= 8-2x tell the answer with explanation
The equation has infinite solutions which lie on the graph of this equation.
We have the following equation -
y = 8 - 2x
We have to solve for the possible values of x and y for which the equation is satisfied.
Define rearrangement of a mathematical equation.The rearrangement of a mathematical equation is process of expressing a variable in a equation in terms of other variables, constants etc.
According to the question, we have the following equation -
y = 8 - 2x
Rearranging the equation -
y = - 2x + 8
Now, plot the equation on graph - (Graph is attached at the end)
All the coordinates on this line satisfy the equation → y = 8 - 2x.
Hence, the equation has infinite solutions which lie on the graph of this equation.
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DIO uses [ZA WARUDO] to stop time and throws 200 knives at Jotaro Kujo. Then he adds one more and summons a ROAD ROLLER DA and smashes Jotaro Kujo with it and it explodes. This subtracts 32 knives. Jotaro Kujo uses [STAR PLATINUM] to punch 27 knives and subtracting them. How many knives are left?
Answer:
142
Step-by-step explanation:
start with 200, add 1 then subtract 32, minus 27 again
200 + 1 -32- 27+ 142
Answer:
141
Step-by-step explanation:
A tank of diesel fuel contains 210 gallons. Every week, 5 gallons is used. A tank of gasoline contains 430 gallons. Every week, 16 gallons is used. After how many weeks will they have the same amount of fuel? How much fuel will each tank hold on that day?
Answer:
After 20 weeks both tanks have the same amount of fuel.
Diesel tank= 110 gallons
Gasoline tank= 110 gallons
Step-by-step explanation:
Giving the following information:
Diesel tank:
Total capacity= 210 gallons
Unitary daily use= 5 gallons
Gasoline tank:
Total capacity= 430 gallons
Unitary daily use= 16 gallons
First, we structure the total fuel loss formula for each tank:
Diesel tank= 210 - 5*x
Gasoline tank= 430 - 16*x
x= number of weeks
Now, we equal both formulas and isolate x:
210 - 5x = 430 - 16x
11x = 220
x= 20
After 20 weeks both tanks have the same amount of fuel.
Prove:
Diesel tank= 210 - 5*20= 110 gallons
Gasoline tank= 430 - 16*20= 110 gallons
PLEASE HELP!! I don't understand rate of change so please include a bit of an explaination.
Use the table to find the rate of change
Answer:
the rate of change is 4.
Step-by-step explanation:
It is 4 because to find the rate of change you need to see how many pieces of corn (y) there are for every serving (x). If you see if you plug in the number three in between 2 and 4 for the servings and you follow the pattern of the table you will get 12. Then you subtract 8 from 12 and you get 4.
so basically the rate of change is the difference in corn for every serving.
A T-shirt vendor
sells yellow shirts and
blue Shirts at a ratio of
1:4. What percent of the
Shirts are yellow?
The percentage of the T-shirt that are yellow will be 20%.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.
The percentage is given as,
Percentage (P) = [Final value - Initial value] / Initial value x 100
A T-shirt vendor sells yellow shirts and blue Shirts at a ratio of 1: 4.
The ratio of the yellow T-shirt is given as,
Yellow ratio = 1 / (4 + 1)
Yellow ratio = 1 / 5
Then the percentage of the T-shirt that are yellow will be given as,
P = [1/5] x 100
P = 0.20 x 100
P = 20%
The percentage of the T-shirt that are yellow will be 20%.
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If = u2 + 2as, evaluate a when v - 5.
= 2 and s = 7.
Answer:
75a
Step-by-step explanation:
2(vas)
2(35a)
75a
Hope this helps plz hit the crown :D
Please help it needs to be in standard form I’ll give you brainless
Answer:
y[tex]\geq[/tex]-1
Step-by-step explanation:
4y+8+8[tex]\geq[/tex]12
4y [tex]\geq[/tex]-4
y[tex]\geq[/tex]-1
Are these triangles congruent? If so, why?
Because ,
The given figure is parallelogram and as we know that , a parallelogram has two congruent triangles . Now by the given figure the pair two sides are equal and a opposite angle is equal . So we can say the the two triangles are congruent by SAS congruency .
Open circles for strictly __________________ and ________________________
Answer:
you have to be more detail?
Step-by-step explanation: