Answer:
A=πr2
Step-by-step explanation:
Area of a circle is found by the following formula-
Area of Circle = πr^2
Where -
π = pie, value of 3.14 or 22/7
r = radius of a circle
Example -
A circle has a radius of 10 cm. Find the area of the circle.
Solution -
Area of Circle = A=πr^2
A = 3.14*10^2
A= 314 cm
Note - Most preferably, 3.14 is the most common value used for pie. You can also use 22/7, and would end up with roughly the same answer, but it takes more time to solve with a fraction like 22/7.
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Addison and Kelsey are running on a path modeled by x2 + y2 - 12x – 8y – 309 = 0, where the distance is in meters. What is the maximum distance between thi
runners at any given time?
Answer:
It is 38 meters!!!!!!
Step-by-step explanation:
The maximum distance between the runners at any given time is 38 meters.
What is general form of equation of a circle?"The general form of equation of circle is [tex]x^2 + y^2 + 2gx + 2fy + c = 0[/tex]."
here center = (-g, -f) and radius = [tex]\sqrt{g^{2} +f^{2} -c}[/tex]
What is the equation of circle?The equation of the circle with center (h, k) and radius 'r' is, [tex](x-h)^2 + (y-k)^2 = r^2[/tex]
For given question,
Addison and Kelsey are running on a path modeled by [tex]x^2 + y^2 - 12x - 8y - 309 = 0[/tex]
This means, they are running on a circular path.
By completing the squares, the equation is:
[tex]\Rightarrow x^2 -12x + 36+ y^2 - 8y +16 = 309 + 36+16\\\\\Rightarrow (x-6)^2+(y-4)^2=361\\\\\Rightarrow (x-6)^2+(y-4)^2=19^2[/tex]
This equation represents the circle with center (6, 4) and radius = 19
The maximum distance between the runners is the diameter of the circle.
diameter = 2 × radius
diameter = 2 × 19
diameter = 38 meters
Therefore, the maximum distance between the runners at any given time is 38 meters.
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Janye uses long division to convert a rational number a/b to a decimal which following statements cannot be true
Answer:
5
Step-by-step explanation:
5
x a a a
[ a x a a ] =?
a a x a
Answer:
nyee he he he
Step-by-step explanation:
heh
paps undertale
The price of a stock went up by $1.20 on Monday, down by $2.30 on Tuesday, down by $1.00 on Wednesday, down by 1.80 on Thursday, and up by $.40 on Friday. What is the mean change of the stock price for those 5 days
Answer:
The mean change of the stock price of those 5 days is $1.34.
Step-by-step explanation:
First let's list the differences then find the mean.
1.20, 2.30, 1.00, 1.80, 0.40
Now we add up all of the numbers and divide by how many numbers there are.
Mean = 1.34
The mean change of the stock price of those 5 days is $1.34.
The stock cost changes summed to -$3.50. Partitioning by 5 days gives the Mean change of -$0.70 for the period.
What is the mean change of the stock price for those 5 days?To discover the mean change in the stock cost over those 5 days, you would like to calculate the overall alter in cost and after that isolate it by the number of days.
Given cost changes:
Monday: +$1.20
Tuesday: -$2.30
Wednesday: -$1.00
Thursday: -$1.80
Friday: (+$0.40)
Total change = (+$1.20 + -$2.30 + -$1.00 + -$1.80 + +$0.40)
Total change = -$3.50
Number of days = 5
Mean change = Add up to alter / Number of days
Mean change = -$3.50 / 5
Mean change = -$0.70
So, the Mean change of the stock cost over those 5 days is -$0.70.
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5
5
A function f (x) is graphed on the coordinate plane.
What is the function rule in slope-intercept form?
Answer:
y= 2x + 1
Step-by-step explanation:
Given the point (0,1) and (1,3)
You can use the slope formula to get the slope.
y2-y1/x2-x1
3-1/1-0 = 2/1 = 2
Slope = 2
Now rewrite into point-slope formula
y-3=2(x-1)
Distribute
y-3= 2x -2
Add 3 to both sides
y= 2x + 1
Several members of a running club would like to survey the rest of the members to determine which 5K races the
club should enter. They decide to sample 10 of the 78 members and have them fill out a survey about the races.
Which of the following procedures would produce a simple random sample?
O Give each member a unique number from 01 to 78. Use a random number table and select the first 10 numbers
between 01 and 78. Survey these members about their race preference
O Give each member a unique number from 01 to 78. Use a random number table and select the first 10 two-digit
numbers between 01 and 78. Survey these members about their race preference
Give each member a unique number from 01 to 78. Use a random number table and select 10 unique two-digit
numbers between 01 and 78. Survey these members about their race preference
O Give each member a random number from 01 to 78. Use a random number table and select 10 unique two-digit
numbers between 01 and 78. Survey thesdlumembers about their race preference.
Answer:
C). Give each member a unique number from 01 to 78. Use a random number table and select 10 unique two-digit numbers between 01 and 78. Survey these members about their race preference.
Step-by-step explanation:
Good morning everyone! Can someone Help me as soon as possible if can!
Answer:
D
Step-by-step explanation:
Which of the following is the range of the function based on the input-output
table below?
Pay
Hours
of training
10
20
per month
1000
30
1100
1200
1300
1400
40
50
60
1500
1600
70
A. {10, 1000, 20, 1100, 30, 1200}
B. {70, 1600, 60, 1500, 50, 1400, 40, 1300)
Ο Ο
C. {1000, 1100, 1200, 1300, 1400, 1500, 1600}
O D. {10, 20, 30, 40, 50, 60, 70}
0.13 S
Option C is correct, {1000, 1100, 1200, 1300, 1400, 1500, 1600} is the range of the given function.
What is a function?A relation is a function if it has only One y-value for each x-value.
The set of all possible values which qualify as inputs to a function is known as the domain of the function, or it can also be defined as the entire set of values possible for independent variables.
The set of all the outputs of a function is known as the range of the function or after substituting the domain, the entire set of all values possible as outcomes of the dependent variable.
The codomain is the set of all possible values which can come out as a result but the range is the set of values which actually comes out.
{1000, 1100, 1200, 1300, 1400, 1500, 1600} is the range of the given function.
Hence, Option C is correct, {1000, 1100, 1200, 1300, 1400, 1500, 1600} is the range of the given function.
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Pls help I’ll brainlest ASAP and add extra points
Answer:
1. A
2. B
3. A
4. his conclusion should be the juice made group A do less stacks than B
5. give the juice do group B and see if the result changes
Step-by-step explanation:
P.S. = the group A underperfomance actually had nothing to do with the juice, it was because Homer was in this group, lol (JK)
Explanation (2)
•The independent variable is the variable or the thing that the scientist/creator changes.
•the dependent variable is what we measure at the end and it depends on the independent.
•Controlled group/variable is the thing that should be constant in order to have an accurate results and it never changes even if anything changes in the experiment.
Answers:
1. Controlled: Number of stacks of paper
Amount of time
Amount of juice
Number of workers
2. Independent: Amount of juice given to workers
3. Dependent: Number of stacks at the end
•Explanation that helps with your conclution: The juice has nothing to do with how much stacks the workers finish. It depends on how each worker is handled to do their work even when on pressure, also. The juice may be a distraction to the workers because they drink it while working so they're consuming their energy without the help of the juice. Lastly, maybe some of the workers didn't drink the same amount of juice while working on finishing the stacks.
4. CONCLUSION: Group B had much higher results than Group A in 24% Even though they didn't drink the juice. Shows that workers do their job more efficiently and faster when their not distracted while working.
5. (a) Smith should make sure that the 50 workers drink the same amount of juice before they start their work and also make sure that both groups start doing their task at the same time and finish at the same time, for accurate changes.
(b) As Felipe said: try to give the juice to group B and see the result change.
(c) Do the experiment many times to see how long does the juice keep the workers productive while working, by the results change.
!!!!!(CHOOSE ANY ANSWER FROM Q5)!!!!!
Hope this helps, this took me forever.
А
B
D
С
Trail
2.6
1.8
42
Length (mi)
Processes
9. &Practices Model Math The
table shows the lengths of four trails
at a horseback riding camp. The
estimated length of all four trails is
12 miles. Find a possible length for
trail D. She vyeur work.
Plz help me I need help 20 points if u do
Answer: the answer is 3.3
Step-by-step explanation: because 3 + 2 + 4 + 3 = 12 miles
Set up a proportion and solve each problem. Round each answer to the nearest tenths. 5) What is 35% of 74? 6) 78 is what percent of 95? 7) Find what% of 54 is 6. 8) 28 is 60% of what number?
Answer:
5) 35 / 100 = X / 74 X = 2590 / 100 = 25.9
or .35 * 74 = 25.9
6) 78 / 95 = X * 100
X = 7800 / 95 = 82.1 %
or X = 78/95 * 100 = 82.1 %
7) 60/100 * X = 28
X = 2800 / 60 = 46.7
Or .6 * X = 28
X = .28 / .6 = 46.7
need help on algebra ii question
Answer:
≈ 6 seconds
Step-by-step explanation:
When it says about hitting the ground, it means it hits the t-axis.
That means we have to solve for t-intercepts to find the solution.
Finding t-intercept, let y = 0.
[tex] \displaystyle \large{0 = - 16 {t}^{2} + 96t + 3}[/tex]
Use the Quadratic Formula.
[tex] \displaystyle \large{t = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} }[/tex]
Substitute in a = -16, b = 96 and c = 3.
[tex] \displaystyle \large{t = \frac{ - 96 \pm \sqrt{ {96}^{2} - 4( - 16)(3)} }{2( - 16)} } \\ \displaystyle \large{t = \frac{ - 96 \pm \sqrt{ 9216 + 192} }{ - 32} } \\ \displaystyle \large{t = \frac{ - 96 \pm \sqrt{ 9408} }{ - 32} } \\ \displaystyle \large{t = \frac{ - 96 \pm 56 \sqrt{3} }{ - 32} } \\ [/tex]
Then simplify to simplest form.
[tex] \displaystyle \large{t = \frac{ - 96 \pm 56 \sqrt{3} }{ - 32} } \\ \displaystyle \large{t = \frac{ 12\pm 7\sqrt{3} }{ 4} } \\ [/tex]
Then use the highest value/root which is 12+7√3 over 4 then input it in a calculator and you will see that the highest root is close to 6.
We use the highest root because thats when y or height = 0 hence if height = 0 then the object finally hits the ground.
Hello there
I'm looking for some help here thanks. giving brainliest if able to.
If 2 out of 5 people prefer Columbia brand coats to REI brand coats, in a group of 45 friends how many prefer Columbia brand coats?
Answer:
16
Step-by-step explanation:
2/5 want to go
45 / 5 = 8
8 * 2 = 16
16 people prefer Colubmia
(I answered another one of your questions with the same concept, so this is very similar to that!)
Debbie has $200 in a savings account that earns 5% interest per year. The interest is not
compounded. How much interest will she earn in 1 year?
Use the formula i = prt, where i is the interest earned, p is the principal (starting amount),
is the interest rate expressed as a decimal, and t is the time in years.
Submit
Answer/Step-by-step explanation:
I = p (1 + r)^t
Interest = 210
Principal = 200
Rate = 1 + 0.05
Time = 1 year
210 = 200 (1.05)^1
Answer:
Answer/Step-by-step explanation:
I = p (1 + r)^t
Interest = 210
Principal = 200
Rate = 1 + 0.05
Time = 1 year
210 = 200 (1.05)^1
Step-by-step explanation:
zack borrowed some money from his parents to buy a cell phone his purchase and plan to repay his parents, is shown on the graph below. determine the intercepts and explain what each intercept means
Answer:
where is the graph?
Step-by-step explanation:
how do you expect people to answer your question if the entire question is based on the graph
5. What is the coefficient of the variable n?
Maria is training for a triathlon. Yesterday, she rode her bike for eight and two-thirds miles in two-thirds of an hour. If Maria continues to rides at the same rate, how far will she ride in one hour? help plzz
Maria's rate is 13 miles per hour. If she continues to ride at the same rate, she will ride 13 miles in one hour.
We have,
Maria's rate can be calculated by dividing the distance she rode by the time she took.
Rate = Distance / Time
Yesterday, she rode 8 and two-thirds miles in two-thirds of an hour:
Rate = (8 + 2/3) miles / (2/3) hour
First, let's convert the mixed number (8 + 2/3) to an improper fraction:
8 + 2/3 = (8 * 3 + 2) / 3 = 26/3
Now, plug in the values:
Rate = (26/3) miles / (2/3) hour
When you divide fractions, you can multiply the first fraction by the reciprocal of the second fraction:
Rate = (26/3) * (3/2) miles/hour
Rate = (26/2) miles/hour
Rate = 13 miles/hour
Thus,
Maria's rate is 13 miles per hour. If she continues to ride at the same rate, she will ride 13 miles in one hour.
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The length of a rectangle is
4 meters less than 2 times the width. The perimeter is 22 meters. Find the width.
Answer:
5 meters
Step-by-step explanation:
We should derive an equation to solve this problem.
Let's assign x to width and y to length.
[tex]2x-4=y[/tex]
and
[tex]2x+2y=22[/tex]
so
[tex]2x+2(2x-4)=22[/tex]
[tex]2x+4x-8=22[/tex]
[tex]6x-8=22[/tex]
[tex]6x=30[/tex]
[tex]x=5[/tex]
Width = 5 meters
What is 2803 x 406?
Answer:
1138018
Step-by-step explanation:
Please helpppp I don’t know how to do
HELPPP ASAP!!!!!!!!!!
Answer:
In the before the ice the particles would be disorganized while in the after ice drawing the particles should be drawn closer and a bit more organized.
The first section (before ice) shows more thermal energy.
Which ordered pairs is a solution to −5x + 3y > 12?
(3, 9)
(-5, 5)
(3, -6)
(-2, -5)
(2, 8)
(-6, 0)
Answer :-
Given inequality ,
-5x +3y > 12 3y > 5x + 12 y > 5/3x + 12/3y > 5/3x + 4From the options ,
When x is 3 and y = 9
y >1* 5 + 4y > 5 +4 9> 9 ( Not possible )When x is -5 y is 5
y > 5/3*-5 + 4y > -8.3 + 4 5 > -3.7 ( Possible )When x is 3 y is -6
y > 5 + 4 -6 > 9 ( Not possible )When x is -2 y is -5
y > -3.33 + 4 -5 > -0.67 ( Possible )When x is 2 y is 8
y > 3.33 + 4 8 > 7.77 ( possible )When x is -6 y is 0
y > -10 +4 0 > -6 ( possible )Find the slope of the line that passes through two given points.
1. (-2, -1) and (-4, -7)
2. (-5, 7) and 3, -1)
3. (-3, 4) and (-3, -8)
4. (10, 9) and (-8, 9)
PLS SHOW WORK I'M GIVING YOU 85 POINTS!!!
In above graf You will get your answer
line which I have made with pencile that mean they are on one line,
You flip a coin 10 times and you get 10 heads. Based on these 10 outcomes what is
the empirical probability of getting a head?
The empirical probability is the ratio of the number of times an event occurred to the total number of trials. Hence, the empirical probability is 1.
The empirical probability is defined thus :
Number of times event occurred / total number of outcomesHence, the empirical probability of head in the experiment :
Number of heads / total number of tossesP(Head) = 10/10 = 1
Therefore, the empirical probability of getting a head is 1.
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Surface area of 56,14, and 16
Answer:
328
Step-by-step explanation:
Just try it
Graph the line with -intercept -5 and slope 1/3 .
Answer:
(assuming the y-intercept is -5) Check the graph below the explanation.
Step-by-step explanation:
1. The y-intercept of -5 means that the line intersects with the y-axis at (0,-5).
2. The slope 1/3 means that for every point, you rise up by 1 and run 3.
23x1290801 PLS ANSWERRR
Answer:
29688423
Step-by-step explanation:
Hope this helps! Thanks.
The value of the 8 in 28,973 is _____ times the value of the digit 8 in 98.
Is 3 times the value
I know this because the number 8 is moved to the left 3 times
If it’s 9:04pm what time would it be 5 hours and 18 mins from then
Answer:
12 : 22
Step-by-step explanation:
Step-by-step explanation:
3:00 hours and 26 second
someone help please!!
Answer:
112
Step-by-step explanation:
You need to find the values of the other two angles they add up to 180 180-44=136 then divide it by 2 to get 68 then do 180-68 to get 112 all horizontal lines add up to 180 as well