Answers
The measure of arc PQ is 120°
What is circle geometry?A circle is a special kind of ellipse in which the eccentricity is zero and the two foci are coincident.
There is a theorem in circle geometry that states that angle formed by an arc is twice the angle formed at the circumference.
arc RQ = 2 × 50
= 100°
Also, the total angle on the circumference of a circle is 360°. Circumference is the outer part of a circle.
Therefore;
arc RP + arc RQ + arc PQ = 360°
140 +100 + x = 360°
x = 360 -240
x = 120°
Therefore the value of arc PQ is 120°
learn more about circle geometry from
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Related Questions
Pleas ehelp me with this questionn
Answers
Answer:
A and B
Step-by-step explanation:
C = 2a + 203
D = 0 + 82
If it is a complex number, D = 82 + i0
Answer:
A and B
Step-by-step explanation:
A and B are the answers as the unknown number can be anything.
Help meeeeeeeee PLEASE
Answers
Answer:
173250 squared yards is the answer I believe.
Step-by-step explanation:
I really hope this helps! Have a great day!
Without using a calculator, match each expression to the correct point.
Answers
Answer:
The locations of each irrational number are the following:
[tex]\sqrt{16}[/tex] - Point [tex]a[/tex]
[tex]\sqrt{27}[/tex] - Point [tex]b[/tex]
[tex]\sqrt{32}[/tex] - Point [tex]c[/tex]
Step-by-step explanation:
[tex]\sqrt{16}[/tex] is an irrational number that is also rational, since [tex]4^{2} = 16[/tex]. Then, [tex]\sqrt{16}[/tex] must be point [tex]a[/tex].
Both [tex]\sqrt{27}[/tex] and [tex]\sqrt{32}[/tex] are greater than [tex]\sqrt{25} = 5[/tex] and less than [tex]\sqrt{36} = 6[/tex]. Then, both are between 5 and 6. Since [tex]\sqrt{27} < \sqrt{32}[/tex], [tex]\sqrt{27}[/tex] must be point [tex]b[/tex] and [tex]\sqrt{32}[/tex] must be point [tex]c[/tex].
A large pizza has a radius of 7 in. The pizza is cut into 8 slices of equal size. What is the area of 1 slice, rounded to the nearest whole number? Use 3.14 for π.
Answers
Answer:
The area of 1 slice is of 19 square inches.
Step-by-step explanation:
Area of a circle:
The area of a circle of radius r is given by:
[tex]A = \pi r^2[/tex]
A large pizza has a radius of 7 in.
So its area of the pizza, in square inches, is of:
[tex]A = \pi(7)^2 = 49\pi = 49*3.14 = 153.86[/tex]
The pizza is cut into 8 slices of equal size. What is the area of 1 slice, rounded to the nearest whole number?
Area of the pizza divided by 8. So
153.86/8 = 19.2
Rounding to the nearest whole number, the area of 1 slice is of 19 square inches.
Please Help ASAP Due In Less Than 1 Min!
No Links
Answers
A random sample of 18 female neurologists and 21 male neurologists at public medical schools found that the average salary for female neurologists was $175,000 with a standard deviation of $15,000, while the average salary for male neurologists was $203,000 with a standard deviation of $22,000. Find a 99% confidence interval for the difference between the average salaries of male and female neurologists. (Round your answer to the nearest dollar.)
a) Write the formula that should be used to compute the interval.
b) Write the assumptions that need to be met in order to use the above formula.
c) Compute the interval.
Answers
Answer:
a) = x1`-x2`/ Sp √ ( 1/n₁ + 1/n₂)
b) it is assumed that the population standard deviations are known (which is sometimes met and sometimes not known).
c) The Confidence interval = [ 19131.77, 36868.23]
Step-by-step explanation:
Part a:
The 99% confidence interval for the difference between the average salaries of male and female neurologists is given by
(x1`-x2`) ±t∝/2(υ)* √ ( Sp²/n₁ + Sp²/n₂)
= x1`-x2`/ Sp √ ( 1/n₁ + 1/n₂)
where Sp ²= s₁² ( n1-1) + s₂²(n2-1) /(n1-1) + (n2-1)
Part B:
1) the sample should be normally distributed
2) it is assumed that the population standard deviations are known (which is sometimes met and sometimes not known).
Part C:
Calculations
1) H0: μ₁=μ₂ against the claim Ha: μ₁ ≠μ₂
2)The test statistic is
t= x1`-x2`/ √ ( Sp²/n₁ + Sp²/n₂)
where
Sp ²= s₁² ( n1-1) + s₂²(n2-1) /(n1-1) + (n2-1)
= 15,000²(17) + 22,000²(22) / 37
Sp ²= 103378640
3) D.f = n1+n2-2 =21+18-2 = 37
4) for 2 tailed test the critical value of t is obtained by
t≥ t∝/2 ( d.f)=t≥ t0.005 (37)= ±2.7154= ± 2.72
5) Putting the values
(x1`-x2`) ±t∝/2(υ)* √ ( sp²/n₁ + sp²/n₂)
28000 ± (2.72 * 3265.89)
=[ 19131.77, 36868.23].
The Confidence interval = [ 19131.77, 36868.23]
The average weight of a female hippopotamus is 1½ tons. How many pounds is this?
Answers
Answer:
3000 pounds
Step-by-step explanation:
Since there are 2000 pounds in a ton, find how many pounds there are by multiplying 1.5 by 2000
1.5(2000)
= 3000
So, this is 3000 pounds
PLEASE HELP FAST NO LINKS!!
3/2 (x-6)= -3
Answers
Answer:
x= 4
hope this helps!
Answer: x=4
Step-by-step explanation:
−3×2 =−6 then − 6/3=−2 after that −2+6 which equals x=4
HOPED THIS HELPED :))
A recipe calls for 3/4 cups of sugar. Amari is tripling the recipe. how much sugar will be needed?
Answers
the correct answer would be 2 1/4 :)
Math Homework please help!
Answers
Answer:
the answer is (B)
Step-by-step explanation:
brainleist please
Which Value is not located between these numbers on the number line
Answers
Answer:
36/[tex]\sqrt{27}[/tex]
Step-by-step explanation:
Hi answer as fast as you
Answers
it just says hi answer as fast as you where is the question
6 is 30% of _________ .
Answers
Answer:20
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
Let N be the number
"Is" in this case is =
"Of" means "multiply"
So we got
6 = .3N divide both sides by .3
6/.3 = 20
N=20
Evaluate the following expression.
6^-3
Answers
Answer:
.0046, if you mean the -3 to be an exponent
Step-by-step explanation:
Answer:
[tex]\frac{1}{216}[/tex]
Step-by-step explanation:
If you have any questions feel free to ask in the comments
Kiran is recalling Easter egg hunts from her childhood. She remembers that there were 2 Easter egg hunts where
she found 8 eggs each and 4 Easter egg hunts where she found 11leggs each. She also knows that she averaged
11.6 eggs per Easter egg hunt. This information is summarized in the table below.
Fill in the missing blank with the number of hunts where Kiran found 14 eggs.
Answers
Answer:
In 4 Easter egg hunts she found 14 eggs
Step-by-step explanation:
The table is missing, but the thing we need to complete in the table is a number X, where X is the number of easter egg hunts where she found 14 eggs.
We already know that:
2 times she found 8 eggs
4 times she found 11 eggs
X times she found 14 eggs.
And we also know that the average is 11.6 eggs.
Where the average can be computed as:
The quotient between all the eggs she found in all the Easter egg hunts, and the total number of Easter egg hunts were she attended.
She got a total of: 2*8 eggs + 4*11 eggs + X*14 eggs.
And she attended a total of 2 + 4 + X Easter egg hunts, then:
This is then:
[tex]avg = \frac{2*8 + 4*11 + X*14}{2 + 4 + X} = 11.6[/tex]
Now we just need to solve the above equation for X.
We can rewrite this as:
[tex]2*8 + 4*11 + X*14 = 11.6*(2 + 4 + X)[/tex]
[tex]16 + 44 + X*14 = 11.6*(6 + X)[/tex]
[tex]60 + X*14 = 11.6*(6 + X) = 11.6*X + 69.6[/tex]
[tex](14 - 11.6)*X = 69.6 - 60[/tex]
[tex]2.4*X = 9.6[/tex]
X = 9.6/2.4 = 4
This means that in 4 Easter egg hunts she found 14 eggs.
Diego is at the batting cage where they are currently offering batting cage customers their choice of The Slow
Ball Challenge or The Fast Ball Challenge.
The Slow Ball Challenge: There will be 10 pitches, each at 60 mph. Diego estimates that he will hit each
individual pitch 95% of the time. If Diego can hit all 10 pitches, he will win a total of $25; otherwise he will lose
$5.
The Fast Ball Challenge: There will be 3 pitches, each at 90 mph. Diego estimates that he will hit each
individual pitch 60% of the time. If Diego can hit all 3 pitches, he will win a total of $60; otherwise he will lose
$10.
What are Diego's expected winnings from playing The Slow Ball Challenge? Round your answer to the nearest
dollar. $
What are Diego's expected winnings from playing The Fast Ball Challenge? Round your answer to the nearest
dollar. $
The batting cage is allowing customers to participate in their choice of either The Slow Ball Challenge or The Fast
Ball Challenge a total of 10 times.
If Diego wants to maximize his expected winnings, what should he do?
Answers
Answer:
The expected winnings from The Slow Ball Challenge rounded to the nearest dollar are $13
The expected winnings from The Fast Ball Challenge rounded to the nearest dollar are $5
Since The Slow Ball Challenge has higher expected winnings, Diego should play The Slow Ball Challenge all 10 times.
Step-by-step explanation:
khan academy
This figure has rotational symmetry. What is true about the figure?
Answers
Answer:
It looks the same if it rotated 120°
Step-by-step explanation:
What is the range of the data below?
A box-and-whisker plot. The number line goes from 100 to 125. The whiskers range from 102 to 115, and the box ranges from 109 to 114. A line divides the box at 111.
2
5
12
13
Answers
Answer:
The range is 13 because 115-102 is 13
Step-by-step explanation:
Sam and you are going to paint your room together.
Sam takes 10 minutes to paint 25 square feet.
It takes you 5 minutes to paint 25 square feet.
Sam says, "If we paint together, then it will take 15 minutes for us to cover
feet."
TI
of
Give an explanation to convince Sam that she is incorrect.
.
Answers
Answer:
Sam is incorrect because you would not add the two times together. Hence there being 2 people working it would take you guys less time. You would actually subtract the times to get 5 minutes
Step-by-step explanation:
Answer:
Sam 's thinking is incorrect.
Step-by-step explanation:
Because If Sam takes 10 minutes to paint 25 square feet, then 5 minutes will be paint 12.5 sf... So if 15 minutes will paint 37.5 square feet. (by Sam)
---For me: if 5 mutes to paint 25 square feet.--->10 minutes will be 50 sf---> then 15 minutes will paint 75 square feet...
So If Same and I paint together will be 12.5 + 75 = 112.5 square feet
---Not 50 square feet...
What Sam says is incorrect....He can't add times together., that' s wrong.
A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head wind, the trip takes him 2 hours. On the way back, the wind is still blowing at the same speed, so the return trip takes only .9 hours. What is the plane's speed in still air, and how fast is the wind blowing?
Answers
Answer:
90 mi/h
Step-by-step explanation:
Calculate speed, distance, or time using the formula d = st, distance equals speed times time. The Speed Distance Time Calculator can solve for the unknown sdt value given two known values.
Time can be entered or solved for in units of seconds (s), minutes (min), hours (hr), or hours and minutes and seconds (hh:mm:ss).
To solve for distance use the formula for distance d = st, or distance equals speed times time.
distance = speed x time
Rate and speed are similar since they both represent some distance per unit time like miles per hour or kilometers per hour. If rate r is the same as speed s, r = s = d/t. You can use the equivalent formula d = rt which means distance equals rate times time.
distance = rate x time
To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.
speed = distance/time
To solve for time use the formula for time, t = d/s which means time equals distance divided by speed.
time = distance/speed
Plane speed in still air: 120mph
Wind speed: 30pmh
Speed of plane to Bismarck: 90mph
Speed of plane to Fargo: 150mph
Which set of numbers could represent the lengths of the sides of a right triangle?
A: 8, 15, 17
B: 7, 9, 11
C: 12, 18, 22
D: 10, 15, 20
Answers
.............................
a^2 + b^2 = c^2
1.5 x 0.3 =
i’m desperate pls answer-
Answers
Answer:
45
Step-by-step explanation:
Answer:
0.45
Step-by-step explanation:
Which of the following is a ray as shown in the drawing?
Answers
Roddy adjusts his simulation, making it easier and easier to win. Eventually, he finds that if the random numbers are between 1 and 4, and the contest only runs for 4 days, about 39 out of 10,000 people are likely to win (by getting 4,4,4,4).
He runs this simulation repeatedly to be sure and then sets aside 39 concert tickets, plus a few more to be safe.
When the contest is launched into the real world, though, what factors might affect the actual number of winners? Select all that apply.
The random chance of the number generator
People who get a 1 and then stop playing the game
The number of people who participate in the game
The results of his simulated trials
People who get a few 4s and then stop playing the game
Answers
Answer:
Option A, B, C and D should be your answer.
Step-by-step explanation:
I'm sorry if my answers are wrong.
(2x+3y+4z)(4x^2+9y^2+16z^2-6xy-12yz-8zx)
Answers
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -6xy-12yz
Group 2: 16z2-8xz
Group 3: 4x2+9y2
Pull out from each group separately :
Group 1: (x+2z) • (-6y)
Group 2: (x-2z) • (-8z)
Group 3: (4x2+9y2) • (1)
Looking for common sub-expressions :
Group 1: (x+2z) • (-6y)
Group 3: (4x2+9y2) • (1)
Group 2: (x-2z) • (-8z)
a duck dove 72 times in 12 hours. At this rate, the duck will dive ______ times in 3 hours
Answers
A model car has a length of 10 inches. If the model was built using a scale factor of 1 in : 15 ft, what is the length of the care in feet
A А
15 ft
B
150 ft
С
150 in
D
12.5 ft
Answers
Answer:
C) 150 ft
Step-by-step explanation:
10 x 15 = 150
6 x (4 + 2 x 4) + 10
Hurry need help
Answers
82
Hope this helps!
The points D(-9,8) and E(3,-13) are on a coordinated plane. What is the approximate distance between points D and E?
Answers
Answer:
d = 23.345235
Step-by-step explanation:
Plzzz help fast I need the answer
Answers
Answer: (The first number are the years and the second are the amount of Komodo's) (0, 0) (1, 4) (2, 20) (3, 100) (4, 500) (5, 2,500)
Step-by-step explanation:
If there are 4 Komodo's in the first year because that's when they moved in, then there would be zero in the 0 year.
If they keep multiplying their population by 5 each year then for every year, you would multiply the existing population of that year by 5
Starting at year 1 which is (1, 4) multiply that by 5 to get 20 and so on to get the function.
I hope this helps!