PLEASE HELP ASAP 50 POINTS! real answers only or will be reported and deleted!
Find the probability of “landing” in the shaded region of the figures below.
Answers
9514 1404 393
Answer:
3/16
Step-by-step explanation:
The radii of the three circles appear to be in the ratios ...
5 : 10 : 20 = 1 : 2 : 4
Then the areas of the circles will be in the ratios that are the square of these:
1 : 4 : 16
The shaded area is the area of the middle-sized circle, less the area of the smaller circle, so is 4-1 = 3 "ratio units". The ratio of that area to the area of the largest circle is the probability of randomly choosing a point in the shaded area:
p(shaded) = 3/16
Answer:
3/16
Step-by-step explanation:
i took the test
Related Questions
Which pair of expressions are equivalent?
O 4(x + 5) + 4x and 12x + 14
5a +3 (a + 4) and 6a +7
5 + 6 (a + 3) and 6a + 23
O 5 (a + 3) + 2a and 8a +3
Answers
Answer:
The third one is the answer
In a children's story, a young girl finds that one bowl of soup is too hot, another is too cold, and a third bowl is just
right. Further study reveals that the temperature of the soup bowl that the young girl declared to be just right was
100°F. A researcher would like to test the hypotheses How=100 versus Hou* 100 where ji = the true mean
temperature of all bowls of soup. A 95% confidence interval based on a random sample of 30 bowls of soup is
(100.9, 102.3). Using this interval, can the researcher reject the null hypothesis?
Yes, the null hypothesis can be rejected at the significance level a = 0.05, because 100 is not contained in the and
95% confidence interval.
Yes, the null hypothesis can be rejected at the significance level a = 0.01, because 100 is not contained in the
95% confidence interval.
No, the null hypothesis cannot be rejected at the significance level a = 0.05, because 100 is not contained in the
95% confidence interval.
No, the null hypothesis cannot be rejected at the significance level a = 0.01, because 100 is not contained in the
95% confidence interval
Answers
Answer:
A, Yes, the null hypothesis can be rejected at the significance level α = 0.05, because 100 is not contained in the 95% confidence interval.
Step-by-step explanation:
please help me with this equation
Answers
First we need to find x
9 < 4x - 7
Since the equation is not set up properly we need to switch it from right to left.
7 - 4x > 9
Now we solve
7 - 4x > 9
First we add 7 on both sides
7- will be 7+
-7+7 =0
9 + 7 = 16
Next we divided 4 on both sides
4/4=0 ( I know it should be 1 but that’s how it goes)
16/4= 4
So x=4
Equation
X > 4
this symbol > on a time line always must be open.
Since the symbol is facing left on the time line it must face the opposite side which is right.
So the answer is D
I hope this helped, have a nice day
PLEASE HELP ME. Rhombus ABCD has a diagonal BD¯¯¯¯¯.
m∠ADB=(4x−12)°
m∠CDB=(3x+6)°
What is the m∠ADC ?
Enter your answer in the box
º
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Answer: 120
Step-by-step explanation: took the test and that’s the correct answer
ZB=
Round your answer to the nearest hundredth.
С
2
B
?
7
A
Answers
Answer:
73.4 degrees
Step-by-step explanation:
Suppose the heights of the members of a population follow a normal distribution. If the mean height of the population is 68 inches and the standard deviation is 4 inches, 68% of the population will have a height within which of the following ranges?
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Answer:
68% of the population will have a height between 64 and 72 inches
Step-by-step explanation:
According to the Empirical Rule, 68% of the population will have a height within the range of 1 standard deviation of the mean. This means that the range of possible heights for 68% of the population is between 68-4(1)=64 inches and 68+4(1)=72 inches
The question is in le picture below U-U
Answers
Answer:
30%
Also I LOVE THE EMMA PIC!!!!!!!!
What is the total of 12 monthly payments of 100.00 including tax
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Answer:
The monthly payments of said financing plan will be $8.33.
Step-by-step explanation:
To determine what is the total of 12 monthly payments of $ 100.00 including tax, the following calculation must be performed:
100/12 = X
8.33 = X
Therefore, the monthly payments of said financing plan will be $8.33.
Which equation represents a circle with a center located at (-2,2) and a circumference of 16π
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how do you divide a square in half by connecting two vertices?
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Answer:
diagonally.
Step-by-step explanation:
the vertices are the corners or angles. square has four angles. if you have to divide it in half by connecting 2 vertices, then you would just need to draw a line from one corner, diagonally to another corner. you have 2 halves that are equilateral triangles. think about a grilled cheese sandwich cut in half. make sense?
Hhhhhhhhhhhhhhhhfehhdgdhdhdu
Answers
Answer:
it should be 450 yards
Step-by-step explanation:
A= a+b/ 2
h=27+18/ 2·20= 450
In a statistics class, students were asked how many siblings they have. The mean number of siblings for the class is 3.08 with a standard deviation of 1.61 siblings. The z-score for a student with four siblings is 0.57. Which of the following statements is the best interpretation of the z-score?
Answers
Answer:
The number of siblings for this student is 0.57 standard deviations above the mean number of siblings.
Step-by-step explanation:
yes
im bo.reddddddddddddddddddddddddddddd
plz help me
Answers
From the figure, we can notice that :
⊕ There are 4 striped blocks
⊕ The total number of blocks in the block set : 8
The ratio of striped blocks to total blocks in the block set is :
[tex]\sf{\implies \dfrac{4}{8}}[/tex]
[tex]\sf{\implies \dfrac{1}{2}}[/tex]
[tex]\sf{\implies 1 : 2}[/tex]
Answer : B
In order to drive from your home to the store, there has to be at least one operating route. Once a bridge is closed on a route, that route is no longer operating. The probability that bridge 1 is open is 0.8, bridge 2 is 0.93, bridge 3 is 0.9, bridge 4 is 0.92, and bridge 5 is 0.94. What is the probability you can drive to the store? Answer to 3 decimals.
Answers
Answer:
The probability of driving to the store is 0.969
Step-by-step explanation:
The remaining part of the question is attached
Solution
There are only two possible ways –
a) Route comprising of bridges 123
b) Route comprising of bridge 45
Probability of success while traveling through Route 123 = P(Bridge 1 open) x P(Bridge 2 open) x P(Bridge 3 open)
= 0.9 x 0.92 x 0.91
= 0.75348
P(Route 123 is closed) = 1 - 0.75348 = 0.24652
Probability of success while traveling through Route 45 =
P(Bridge 4 open) x P(Bridge 5 open)
= 0.94 x 0.93
= 0.8742
P(Route 45 is closed) = 1 - 0.8742 = 0.1258
To travel to store, atleast one route from 123 and 45 should be open.
Probability that you can drive to store :
= P(atleast one route from 123 and 45 is open)
= 1 - P(Both routes 123 and 45 are closed)
= 1 - P(123 is closed)*P(45 is closed)
= 1 - 0.24652*0.1258
= 1 - 0.031012216
= 0.968987784
~ 0.969
Can someone help me with this equation
Answers
Answer: 9.45•10^7
Step-by-step explanation:
3. Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles.
A = 55°, a = 12, b = 14 (1 point)
B = 72.90, C = 52.1°, C = 12.5; B = 107.1°, C = 17.9°, C = 12.5
B = 72.90, C = 52.1°, C = 11.6; B = 107.1°, C = 17.9°, c = 4.5
B = 17.1°, C = 107.9°, C = 10.3; B = 162.99, C = 72.1°, c = 10.3
B = 17.1°, C = 107.9°, C = 13.9; B = 162.99, C = 72.1°, C = 13.9
Answers
9514 1404 393
Answer:
(b) B = 72.90, C = 52.1°, C = 11.6; B = 107.1°, C = 17.9°, c = 4.5
Step-by-step explanation:
Sometimes, the best way to answer a multiple-choice question is to see which choices are self-consistent.
__
Side lengths and their opposite angle measures in a triangle have the same ordering, least to greatest. It is informative to look at the answer choices with this in mind.
1a. C < A < B; a < c < b . . . . inconsistent
2a. C < A < B; c < a < b.
2b. C < A < B; c < a < b . . . . consistent
3a. B < A < C; c < a < b . . . . inconsistent
4a. B < A < C; a < c < b . . . . inconsistent
Only answer choice 2 is self-consistent. It is the correct one.
A horticulturist working for a large plant nursery is conducting experiments on the growth rate of a new shrub. Based on previous research, the horticulturist feels the average weekly growth rate of the new shrub is 3cm per week. A random sample of 45 shrubs has an average growth of 1.50cm per week with a standard deviation of 3cm. Is there overwhelming evidence to support the claim that the growth rate of the new shrub is less than 3cm per week at a 0.050 significance level?
Find the value of the test statistic. Round your answer to three decimal places, if necessary.
Answers
Answer:
Test statistic = - 3.354
We reject H0 and conclude that the growth rate of the new shrub is less than 3cm per week.
Step-by-step explanation:
H0 : μ = 3
H1 : μ < 3
The test statistic = (xbar - μ) / (s/ √n)
Xbar = 1.50
μ = 3
s = 3
n = 45
Test statistic = (1.5 - 3) / (3/ √45)
Test statistic = - 1.5 / 0.4472135
Test statistic = - 3.354
Pvalue, using the Pvalue from Z score calculator :
Pvalue = 0.00039826
α = 0.05
Pvalue < α ; We reject H0 and conclude that the growth rate of the new shrub is less than 3cm per week.
What’s the answer (no link I give brainly)
Answers
I need answers ASAP please
Answers
Answer:
22
Step-by-step explanation:
Just count the units around it,
it's kind of blurry so you should just double check in case.
Help me pls thanks so much
Answers
Answer:
A) 5 in
B) 3.93 in
C) 11.8 in
Step-by-step explanation:
A) 10π/π = 10in diameter
10/2 = 5 in radius
B) 10π/8 = 3.93 in
C) 3.93 x 3 = 11.8 in
Which inequality is equivalent to |x-4/<9?
- 9> X-4 < 9
0.9< X - 4 < 9
OX-4<-9 or X-4 < 9
X – 4 >-9 or x 4 < 9
Answers
Answer: x-4>-9 or x-4<9
Step-by-step explanation:
The correct option for the given inequality is x-4>-9 or x-4<9
What is an inequality?A relationship between two expressions or values that are not equal to each other is called inequality.
Given an inequality, |x-4| < 9
Using the rule, if |x| < a then, -a < x < a.
Therefore,
|x-4| < 9
-9 < x-4 < 9
x-4 > -9 or x-4 < 9
Hence, The correct option for the given inequality is x-4>-9 or x-4<9
For more references on inequality, click;
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Pls help me no weird answers pls.
Answer choices are:
A.24
B. 80
C.90
D. 56
Answers
Step 1: Subtract 5x from both sides.
3x + 8 − 5x = 5x − 40 − 5x
−2x +8 = −40
Step 2: Subtract 8 from both sides.
−2x + 8 − 8 = −40 − 8
−2x = −48
Step 3: Divide both sides by -2.
−2x − 2 = −48 −2
x = 24
A classroom board is 48 inches wide and 32 inches tall.
Aba is putting ribbon along the outside edge of the board.
How many inches of ribbon will she need?
32 inches
48 inches
А
160 inches
B
112 inches
с
80 inches
D
65 inches
Answers
Answer is A 160 inches
The 6 students in Mrs. James' class were asked how many minutes It takes them to get to school in the morning. Here is what they answered:
15, 8, 7, 7, 11, 13
Find the mean and median travel times for these students.
If necessary, round your answers to the nearest tenth.
Mean: 1 minutes
x
3
?
Median: minutes
Explanation
Check
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Answers
Answer:
mean = 10.2 minutes
median = 9.5 minutes
Step-by-step explanation:
To find the mean, add up all of the results and then divide by the number of students in the sample. Therefore, the work should look like this: 15+8+7+7+11+13=61 --> 61/6=10.1666667
To find the median, order the results from least to greatest and then notice which number is the middle value. Since there is an even number of students in the sample, you will find that both 8 and 11 are the middle values when you put them all in numerical order (7, 7, 8, 11, 13, 15). Therefore, you must find the average of those two number in order to get the median. (8+11=19 --> 19/2=9.5)
Find 59.2% of 250................................................
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Answer:
148
Step-by-step explanation:
59.2/100x250
what is E and F i really need help please no bots
Answers
Answer:
be happy
Step-by-step explanation:
Find x. Round your answer to the nearest integer.
15
37
O A. 8
B. 6
C. 9
D. 12
Answers
The value of x in the given triangle is 12, Option C is correct.
What is trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.
here, we have,
from the given figure, we get,
The given triangle is a right angled triangle.
We need to find the value of x.
We know that cosx is adjacent side by hypotenuse.
Cos 37 = Adjacent side/ Hypotenuse
The value of cos37 degrees is 0.7654
0.7654 = x/15
15×0.7654=x
11.5 =x
12=x
Hence, The value of x in the given triangle is 12, Option C is correct.
To learn more on trigonometry click:
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Members of a bowling league play thousands of combined games over the course of a season. Suppose that the scores of individual games have a known standard deviation of σ=30 pins. Isla plans on taking a random sample of n games from this population to make a 95% confidence interval for the mean score. She wants the margin of error to be no more than 10 pins. Which of these is the smallest approximate sample size required to obtain the desired margin of error?
9 games
30 games
35 games
43 games
55 games
Answers
Answer: 35
Step-by-step explanation:
Got it right on khan
Which two words are the closest antonyms?
A.) admiring and devoted
B.) adopt and borrow
C.) twig and limb
D.) release and grasp
Answers
Answer:
D-Release and Grasp
Step-by-step explanation:
Antonyms are opposites, and the other answer choices are not antonyms.
Release-allow or enable to escape from confinement
Grasp-seize and hold firmly
Hope this helps :-)
PLEASE HELP ME!!!!! I REALLY NEED HELP!!!!!
Which coordinates represent point E? (3, 7) (4, 8) (7, 3) (8, 4)
Answers
Answer:
Hello! answer: 4, 8
Step-by-step explanation:
Remember x is before y so we go to 4 then up 8 hope that helps!