Consider the statement below. More than 20 students participated in a drawing competition. Which number line best represents the statement?
Answers
Answer:
The number line that best represents this statement is:
Option: A
Step-by-step explanation:
We are given a statement that:
More than 20 students participated in a drawing competition.
This means that when this statement is represented on the number line the region that is covered is:
(20,∞)
Since the more than 20 students means that 20 is not included and all the numbers greater than 20 are included.
Also, on the number line the shaded region lie to the right of 20 and there is a open circle at 20 as 20 is not included in the domain.
Hence, option: A is the correct answer.
Related Questions
need help for this problem
plz thxs
Answers
8/40 = 1/5
15/20 = 3/4
This would help :))
For the first one, 6 is in the new numerator. Let's divide this by the original numerator to see what they did.
30/6 = 5
So they divided the numerator by 5. To get an equivalent fraction, we must do the same to the denominator.
35/5 = 7
So our new equivalent fraction is 6/7.
For the second one, the new denominator is 5. Let's see what they did to get this.
40/5 = 8
So they divided the denominator by 8 to get 5, let's do the same to the numerator:
8/8=1
So we have 1/5.
For the last one, they have 4 in the new denominator. Let's see what they did to get this denominator:
20/4 = 5
So they divided the denominator by 5, let's do the same thing to the numerator:
15/5 = 3
So we have 3/4.
math class has 6 girls and 2 boys in the seventh grade and 3 girls and five boys in the right grade. the teacher randomly selects a 7th and a 8th grader. What is the probability that the student she selects are both girls
Answers
To find the probability of selecting two girls, multiply the probability of selecting a girl from the 7th grade class by the probability of selecting a girl from the 8th grade class.
Explanation:To find the probability that the teacher selects two girls, we need to determine the probability of selecting a girl from the 7th grade class and the probability of selecting a girl from the 8th grade class, and then multiply those probabilities together.
Probability of selecting a girl from the 7th grade class = Number of girls in 7th grade class / Total number of students in 7th grade class = 6 / (6+2) = 6/8 = 3/4 = 0.75
Probability of selecting a girl from the 8th grade class = Number of girls in 8th grade class / Total number of students in 8th grade class = 3 / (3+5) = 3/8 = 0.375
Probability of selecting two girls = Probability of selecting a girl from 7th grade class * Probability of selecting a girl from 8th grade class = 0.75 * 0.375 = 0.28125
Final answer:
The probability of selecting two girls, one from each grade, is 9/32.
Explanation:
The probability of selecting a girl from the seventh-grade class is 6/8, since there are 6 girls out of 8 total students. Similarly, the probability of selecting a girl from the eighth-grade class is 3/8. Since the two events are independent of each other, we can multiply the probabilities to find the probability of selecting a girl from both grades.
So, the probability of selecting a girl from the seventh grade AND a girl from the eighth grade is (6/8) * (3/8) = 18/64 = 9/32.
Therefore, the probability that the teacher selects two girls is 9/32.
SOMEONE EXPLAIN HOW TO DO THIS???
Answers
(total bill) = tax + (charge before tax)
or
(charge before tax) = (total bill) - tax
Then
(total bill) = (tax rate)*(charge before tax) +(charge before tax)
(total bill) = (charge before tax)*(1 +(tax rate))
(total bill) = ((total bill) -tax)*(1 + (tax rate))
Solving for tax rate, we get
.. (tax rate) = (total bill)/((total bill) - tax) -1
.. tax rate = (24.50)/((24.50) -1.50) -1
.. = 24.50/23.00 -1
.. ≈ 0.065217
.. = 6.5217%
The tax rate is about 6.5%.
find the area of the trapezoid with a base of 19 inches, height 12.6 inches and base 29.2 inches
Answers
Hope this helps
Height: h=12.6 inches
Major base: B=29.2 inches
Area of the trapezoid: A
A=(b+B)h/2
Replacing the values:
A=(19 inches + 29.2 inches) (12.6 inches) / 2
A=(48.2 inches) (12.6 inches) / 2
A= (607.32 inches^2 ) /2
A= 303.66 inches^2
Answer: The area of the trapezoid is 303.66 square inches
If the endpoints of the diameter of a circle are (−10, −8) and (−6, −2), what is the standard form equation of the circle?
Answers
The standard form equation of the circle with endpoints (-10, -8) and (-6, -2) is (x + 8)^2 + (y + 5)^2 = 13.
Explanation:To find the standard form equation of a circle, we need to find the center and the radius. Since the endpoints of the diameter are given, we can find the center by finding the midpoint of the diameter. The x-coordinate of the center is the average of the x-coordinates of the endpoints, and the y-coordinate of the center is the average of the y-coordinates of the endpoints. The radius is half the length of the diameter. Once we have the center and radius, we can plug them into the standard form equation of a circle, which is (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius.
Step 1: Find the midpoint of the diameter using the formula:
(x, y) = ((x1 + x2) / 2, (y1 + y2) / 2)
(x, y) = ((-10 + -6) / 2, (-8 + -2) / 2) = (-16 / 2, -10 / 2) = (-8, -5)
Step 2: Find the radius by halving the length of the diameter:
Length of the diameter = √((x2 - x1)^2 + (y2 - y1)^2) = √((-6 - -10)^2 + (-2 - -8)^2) = √(16 + 36) = √(52)
Radius = √(52) / 2 = √(13)
Step 3: Plug the center and radius into the standard form equation of a circle:
(x + 8)^2 + (y + 5)^2 = 13
Blake bought a 16-ounce soda. He uses a scale and makes four measurements of the can's contents. Which measurement is the most accurate, assuming that the can contains exactly 16 ounces? A)16.02 ounces B)16.022 ounces C)16.0222 ounces D)16.1 ounces
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good luck
What’s the height of the brace
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When you see two triangles, you can guess we’re going to deal with proportions. I’m going to set up a proportion between the long side of the big triangle and the long side of the little triangle
15/7
Ok...we’re making progress. We can make another proportion with height h and the “height” of the big triangle, 9
9/h
Since both of these are proportions, we can set them equal to each other
(9/h) = (15/7)
Cross multiply...
63 = 15h
h = 4.2 ft
What is -5/12 + (-1/4) + 3/12
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MATH:a basketball team needs 5 players. The team can choose from a group of 7 players. Explain how to find the number of combinations of players that can be on the team.
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So n = 7, r = 5
n! = 7! = 5040
R! = 5! = 120
(n-r) = 2! = 2
120*2=240
5040/240 = 21
21 combinations!
a worker is tiling the floor of a rectangular room that is 12 feet by 15 feet. THe tiles are square with side lengths 1 1/3 feet. How many tiles are needed to cover the entire floor?
Answers
area of 1 tile = 1 1/3 x 1 1/3 = 1.78 square feet
round to 1.8
180 / 1.8 = 100 tiles are needed
Answer:
102 tiles needed to cover the entire floor.
Step-by-step explanation:
Given : A worker is tiling the floor of a rectangular room that is 12 feet by 15 feet. The tiles are square with side lengths [tex]1\frac{1}{3}[/tex] feet.
To find : How many tiles are needed to cover the entire floor?
Solution :
A rectangular room that is 12 feet by 15 feet.
The area of the room is [tex]A=L\times B[/tex]
[tex]A_r=15\times 12[/tex]
[tex]A_r=180\ ft^2[/tex]
The tiles are square with side lengths [tex]1\frac{1}{3}=\frac{4}{3}[/tex] feet.
The area of the tile is [tex]A_t=s^2[/tex]
[tex]A_t=(\frac{4}{3})^2[/tex]
[tex]A_t=\frac{16}{9}\ ft^2[/tex]
Number of tiles needed to cover the entire floor is
[tex]n=\frac{A_r}{A_t}[/tex]
[tex]n=\frac{180}{\frac{16}{9}}[/tex]
[tex]n=\frac{180\times 9}{16}[/tex]
[tex]n=101.25[/tex]
Therefore, Approximately 102 tiles needed to cover the entire floor.
Write the equation of a cosine function with the following properties
Answers
Let it's general format be -
[tex]f(x) = a \: cos \: b(x - c) + d \\ [/tex]
Having frequency as -
[tex]f = \frac{b}{2\pi} [/tex]
According to provided data -
amplitude : 3
Hence , a = 3
[tex]frequency = \frac{1}{2\pi} [/tex]
Hence b = 1
Phase Shift to the left of 2 : c = -2 [ left to the y-axis ]
Midline of y = 4
Hence d = 4
Now finally substituting every value obtained -
The equation of Cos function is -
[tex]y = 3cos1(x - 2) + 4[/tex]
Aaron wants to divide the trail mix equally into 6 bags to give to his friends.How much trail mix will be in each bag?
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Hye Sun has a modern coffee table whose top is a triangle with the following side legngths: 8 feet , 3 feet, and 5 feet. Is Hye Sun's coffee table top a tight triangle?
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a^2 + b^2 = c^2
3^2+5^2 = 8^2
9 + 25 = 64
34 = 64
This is obviously not true si it is not a right triangle.
PLZ HELP!!!!!! (WILL GIVE BRAINLIEST!!!!)
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I hope this helps!
What is the time the minutes are 10 more than 20 the hour is the same as4+4+4
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a cell phone company has a basic monthly plan of $40plus $0.45 for many minutes ised over 700. John was charged a total of $48.10. Write an equation to determine how many minutes he must have used during the month.
Answers
Cost of minutes used = $0.45 after 700 minutes
Total cost = $48.10
Let x be the total minutes used
Total cost = 40 + 0.45(x - 700)
------------------------------------------------------------------
Form the equation and solve x
------------------------------------------------------------------
40 + 0.45(x - 700) = 48.10
40 + 0.45x - 315 = 48.10
0.45x - 275 = 48.10
0.45x = 48.10 + 275
0.45x = 323.10
x = 323.10 ÷ 0.45
x = 718
------------------------------------------------------------------
Answer: John had used 718 mins this month
------------------------------------------------------------------
A bookcase is to have four shelves, including the top. The height of the bookcase is to be 2 feet more than the width and only 20 feet of lumber is available. Use an equation to determine the width and height of the bookcase.
Answers
The height of the bookcase is x=2
The width of the bookcase is x+2=2+24 feet
Height and width are 2 feet, 4 feet
Answer:
Height and width are 2 feet, 4 feet
Step-by-step explanation:
What is the unit rate of x=y/7
Answers
2. A researcher collected data about the favorite car color of a particular population. He asked 250 people about their favorite vehicle color and the survey revealed the following: 32% of people said blue, 24% of people said white, 20% of people said red, 18% of people said black, and 4% of people said silver.
(a) How many people said their favorite vehicle color was red? Explain.
(b) How many more people said their favorite vehicle color was blue compared to those who said white? Explain.
(c) How many people said their favorite vehicle color was either black or silver? Explain.
Answer:
Answers
B) 80 people said their favorite vehicle color was blue while 60 people said their favorite vehicle color was white
C) 45 said their favorite vehicle color was black while 10 people said their favorite vehicle color was silver
Answer:
(a) 55 (b) 80 and 60 (c) 45 and 10
Step-by-step explanation:
Welcome :)
Which of these is a symptom of nicotine?
A) Slowed heartbeat
B) Decreased blood pressure
C) Increase oxygen supply to the brain
D) Increase dizziness
Answers
A known symptom of nicotine is that it leads to a person having B. Decreased blood pressure
Nicotine is available in cigarettes and is responsible for the addiction that people feel to cigarettes. It has various health effects such as:
Causing loss of appetite Increasing one's risk of brain damage and heart attacks.As a result of it causing a loss of appetite, the person will lose weight and will be unable to produce much blood which would lead to reduced blood pressure.
In conclusion, nicotine can lead to decreased blood pressure.
Find out more at https://brainly.com/question/11174442.
Which relationship describes angles 1 and 2? Select each correct answer.
A. adjacent angles
B. Vertical angles
C. Linear pair
D. Complementary angles
Answers
Your answer is D. Complementary Angles
Have A Wonderful Month Of March!!
-XxNanaX
:P
D complementary angles
and
B vertical angles
hope this helps!
The stem-and-leaf plot lists the number of times different families visit the local zoo each year.
How many families visit the zoo at least 25 times, but fewer than 44 times each year?
Enter your answer in the box.
Answers
The answer should be 4
Hope this helps you!
Always remember, you are a Work Of Art!
- Nicole <3 :)
Answer:
4
Step-by-step explanation:
its 4 just do 4 just do it like nike
how do i approximate each square root to the nearest tenth
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11.4
6.
15.9
7.
14.4
Jessie saves $6 each week.In how many weeks will she have saved at least $50
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Evaluate the expression 53 ÷ (13 − 8) × 2.
Numerical Answers Expected!
Answer for Blank 1:
Answers
53 ÷ 5 x 2
10.6 x 2
21.2
Hope this helped!
let me know if I was wrong.
Answer: 21.2
hope this helped
John walks 1 mile west. Then he turns north and walks another 2 miles before he stops to rest. How far is John from his starting point when he stops to rest? Round your answer to the nearest tenth.
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[tex]a^2 + b^2 = c^2[/tex]
[tex]c = \sqrt{a^2+b^2} = \sqrt{2^2+1^2} = \sqrt{5} [/tex]
This cannot be simplified anymore, so the distance John travels is [tex] \sqrt{5}[/tex] miles. You can put this into a calculator to get a value of 2.2 miles (rounding to the nearest tenth).
A survey of patients at a hospital classified them by sex and blood type, as shown in the table. What percent of all patients are male?[Round the answer to the nearest tenth of a percent. PLS HURRY LOTS OF POINTS NO GUESSING BRAINLIEST TO!!!!
A) 47.0%
B) 47.8%
C) 53.1%
D) 54.1%
Blood Type Male Female
A 105 93
B 99 84
O 160 140
AB 15 18
Answers
Answer:
if you want to know how many males, you have to add all the numbers up :
105 + 93 + 99 + 84 + 160 + 140 + 15 + 18 = 714
and then you divide 714 by all the male numbers 105 + 99 + 160 + 15 = 379
714/379 = 53.08 %
~batmans wife dun dun dun....
Evaluate 3+11t-9u
t=9
u=11
Answers
because 3+11(9)-9(11)
3+99-99
3+0 or 102-99
equals 3
Answer:
3
Step-by-step explanation:
Let's substitute t = 9 and u = 11 into the expression.
3+11t−9u
=3+11(9)−9(11)
=3+99-99=3+99−99
=3
What is the base 10 representation of the number 1100110
Answers
Answer:
102
Step-by-step explanation:
The graph shows the number of hours driving and the distance from home: A scatter plot is shown with the title Road Trip. The x-axis is labeled hours driving, and the y-axis is labeled distance from home. Data points are located at 1 and 50, 2 and 125, 3 and 165, 4 and 250, 5 and 300. A line is drawn connecting the coordinate point 1 and 50 to 4 and 250. Which statement best describes the relationship between the number of hours driving and the distance from home? As the hours driving increases, the distance from home decreases. As the hours driving increases, the distance from home increases. As the hours driving decreases, the distance from home increases. No relationship can be determined.
Answers
Answer:
B
Step-by-step explanation:
The association is positive linear so that means everything is increasing as the line goes up.
Answer:
As the hours increases the number of distance decreases
Step-by-step explanation:
COMMON KNOWLEDGE?