Answer:
0.0977
Step-by-step explanation:
From the question,
A = πR²...................... Equation 1
Where A = Area of the circular flower garden, R = Radius of the circular flower garden.
Also,
A' = πr²..................... Equation 2
Where A' = Area of the circular pool, r = radius of the circular pool.
If a coin is tossed at random into the garden, the probability that the coin will land in the pool is
Pr = Area of the pool(A')/Area of the garden(A)
Pr = A'/A....................... Equation 3
Substituting equation 1 and 2 into equation 3
Pr = πr²/πR².
Pr = r²/R².................... Equatio 4
Given: R = 16/2 = 8 feet, r = 5/2 = 2.5 feet.
Substitute these values into equation 4
Pr = 2.5²/8²
Pr = 6.25/64
Pr = 0.0977
Sara put her dog on a diet and kept track of his weight. At the end of 4 weeks,
she recorded her dog's weight change as -3 1/2 pounds. She noticed her dog lost
the same amount of weight each week. What is the dog's weight change each
week of the diet?
Answer:
Weight change per week = -0.875 or -7/8
Step-by-step explanation:
Sara recorded her dog's weight change as -3.5 pounds after 4 weeks of dieting. We know the weight loss is consistent each week, so we need to find out how much the dog loses in one week.
To find out the weight change per week, we can use the formula:
Weight change per week = Total weight change / Total number of weeks
Plugging in the known values:
Weight change per week = -3.5 / 4
Weight change per week = -0.875
The dog loses 0.875 pounds each week.
or -0.875 pounds is the weekly weight change of the dog during the dieting period.
A "Pick 2" lottery game involves drawing 2 numbered balls from separate bins each containing balls labeled from 0 to 9. So there are 100 possible selections in total: 00, 01, 02, ..., 98, 99. Players can choose to play a "straight" bet, where the player wins if they choose both digits in the correct order. Since there are 100 possible selections, the probability a player wins a straight bet is 1/100. The lottery pays $50 on a successful $1 straight bet, so a player's net gain if they win this bet is $49. Let X represent a player's net gain on a $1 straight bet. Calculate the expected net gain E(X). Hint: The expected net gain can be negative. E(X) = dollars
Answer:
The probability of winning a straight bet is 1/100, and the payout is $50, so the expected value of a winning bet is (1/100) * $50 = $0.50.
The probability of losing a straight bet is 99/100, and the cost of the bet is $1, so the expected value of a losing bet is (99/100) * -$1 = -$0.99.
Therefore, the expected value of a straight bet is $0.50 - $0.99 = -$0.49.
Six times the sum of a number and 25 is at least 30
Answer:
Step-by-step explanation:
Let the number be x then:.
According to the question:
6 * (x + 25) = 30
therefore,
x + 25 = 30 / 6
x + 25 = 5
x = 5 - 25 = -20
help me pls !!!!!!!!!!
Answer:
c and d
Step-by-step explanation:
Can someone answer this please
Answer:
I think it's m=8, c=0.
Step-by-step explanation:
If c is not 0 then c=-1
A taste test asks people from Texas and California which pasta they prefer brand A or brand B. This table shows the results. Brand A Brand B Total 125 150 105 275 45 Texas California Total 80 90 170 60 A person is randomly selected from those tested. What is the probability that the person is from California, given that the person prefers brand A? Round your answer to two decimal places
Therefore , the solution of the given problem of probability comes out to be thus brand A is more prefer by the person as probability of B IS 0.43.
Define probability.A probability is a number that represents the likelihood that a certain event will occur. Probabilities may be expressed as percentages
range from 0% to 100% or from 0 to 1.
Here,
Given :
Which brand of pasta do Texas and California prefer
Because brand B is preferred by 45 persons in Texas, the answer would be A.
There are 105 persons that favor brand B overall.
=> 45/105
=> 15/ 35
=> 0.42857...
So ,
rounded it would be 0.43,
thus brand A is more prefer by the person
Therefore , the solution of the given problem of probability comes out to be thus brand A is more prefer by the person as probability of B IS 0.43.
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Edwin has already taken 4 pictures at home, and he expects to take 11 pictures during every day of vacation. Is the total number of pictures taken proportional to the number of days spent on vacation?
charlotte is 7 miles south of concord and matthews is 13 miles west of charlotte. what is the distance from concord to matthews? give answer in simplest form
The distance from concord to Matthews is solved to be 14.8 miles
How to find the distanceInformation from the question include
charlotte is 7 miles south of concord
Matthews is 13 miles west of charlotte
the distance from concord to matthews = ?
The required distance is solved using using Pythagoras theorem given by the the formula
hypotenuse² = opposite² + adjacent²
plugging the values as in the problem
let x be the required distance
x² = 13² + 7²
x² = 169 + 49
x² = 218
x = √218
x = 14.7648
x = 14.8 (to 3 SF)
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Which inequality is shown on the graph?
Is 5x 3y a linear equation in two variables?
Yes, 5x - 3y = 7 is a linear equation in two variables (x and y)
A linear equation in two variables is an equation in the form ax + by = c, where a, b, and c are real numbers and a and b are not both 0. In this equation, 5x 3y, the coefficients of the variables are 5 and 3, respectively, so a = 5 and b = 3. Therefore, 5x 3y is a linear equation in two variables.
A linear equation in two variables (x and y) is an equation that can be written in the form ax + by = c, where a and b are real numbers and a and b are not both 0. This means that any equation that has two variables with real coefficients will be a linear equation. For example, 5x 3y is a linear equation in two variables because the coefficients of the variables x and y are 5 and 3, respectively. Therefore, 5x 3y is a linear equation in two variables.
the complete question is : Is 5x-3y=7 a linear equation in one variable?
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2) The length of the road is 600 miles. If 1 inch represents 30 miles, what is the
length of the road?
Answer:
Are you asking for it from miles to inches?
If so it would be 20
Step-by-step explanation:
600/30=20
Hope this helps <3
Answer:I think it would be 20 inches that is if your supposed to do 600÷30
Step-by-step explanation:uhh I hope this is right good luck tho
3, is less than, x, minus, 10
Answer:
= or >14
Step-by-step explanation:
x needs to be equal to or greater than 14
ILL GIVE BRAINLIES IF CORRECT
Question content area top Part 1 Without using paper and pencil, how would you find the sum of 8.8 and 5.5 and ?
The sum of 8.8 and 5.5 is 14.3
What is addition?Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.
To find the sum of 8.8 and 5.5 without using pen and pencil:
First, we break the term in simple manner.
8.8 = 8 + 0.3 + 0.5
And 5.5 = 5 + 0.5
And now adding the terms one by one,
0.5 + 0.5 = 1.0
0.3 = 0.3
8 + 5 = 13
Addition,
13 + 1 + 0.3 = 14.3
Therefore, the value is 14.3
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Find the value of x. Round to the nearest tenth. Help please!!!
Answer:
x=3
Step-by-step explanation:
Right triangle so you can use pythagorean theorem
a squared + b squared = c squared
b=x
14^2 + b^2= 17^2
14+b=17
b=3
( NO LINKS- ) What is the VOLUME of this prism? *
A. 34 inches squared
B. 180 inches cubed
C. 1080 inches cubed
D. 900 inches squared
Answer:
1080
Step-by-step explanation:
the formula for finding volume is
length x width x height
so 12 x 15 x 6 which is 1080.
How do you find the y-intercept without a calculator?
In the equation y = mx + c if we substitute the value of x as zero we will get a point on the y axis given by y =(m × 0) + c ⇒ y = c. Therefore the point of the line on the y axis is (0, c) and so c is also called the y -intercept of the line.
Now, According to the question:
i) from the general equation of line we know that any line can be represented in the form y = mx + c , where m is a constant and is called the slope of the line and c is also a constant and is the y-intercept.
ii) In the equation y = mx + c if we substitute the value of x as zero we will get a point on the y axis given by y =(m × 0) + c ⇒ y = c. Therefore the point of the line on the y axis is (0, c) and so c is also called the y intercept of the line.
iii) If for example we have the line 3y = 6x + 12 then we first get this equation of the line to match the general form of the equation of the line, that is y = mx + c. Therefore dividing both the left and the right sides of the given equation of the line by 3 we get y = 2x + 4 which matches with the general form of the equation for line and we see that the slope of the given line is m = 2 and the y intercept is given by c = 4.
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If y=4x - 1, find the value of y
when x = -2 (please help)
Answer:
7
Step-by-step explanation:
x = - 2
y = 4x - 1
= 4 ( 2 ) - 1
= 8 - 1
y = 7
y=4x-1
y=4×-2-1
y=-8-1
y=-9#
Write a system of equations to describe the situation below, solve usi
the blanks.
Parent volunteers at Salem High School are processing yearbook orde
an option to get the basic yearbook or a deluxe option, which includes
protective cover. In Mrs. Wu's class, 21 basic yearbooks and 6 deluxe
ordered, for a total of $2,025. The students in Mr. Boyer's class ordere
and 18 deluxe yearbooks, for a total of $2,763. How much does each
The basic yearbook costs $
and the deluxe yearbook costs $
Submit
Answer: $52.57 for each basic yearbook and $153.5 for each deluxe yearbook
Step-by-step explanation:
First, do Mr. Boyer's class to find out how much each deluxe yearbook is:
2,763 ÷ 18 = $153.5
Then do, Mrs. Wu's class: First, multiply 153.5 by the 6 deluxe yearbooks ordered;
153.5 x 6 = 921
After, subtract 921 from 2,025:
2,025 - 921 = 1104
The remaining $1104 is the total cost of the 21 basic yearbooks ordered. Divide the total cost by the number of yearbooks ordered to find the unit price:
1104 ÷ 21 = 52.5714285714
Round to the nearest hundredth: $52.57
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Question 3
Determine if this statement is always, sometimes, or never true.
If a < 0, then |a| = -a
Answer:
the answer is neither
Step-by-step explanation:
An integer is a whole number that can be either greater than 0, called positive, or less than 0, called negative. Zero is neither positive nor negative. Two integers that are the same distance from the origin in opposite directions are called opposites.
Simplifying algebraic expression
Answer:
-33
Step-by-step explanation:
Plug 9 in for c, then simplify the resulting expression.
5c - 9c + 3
5(9) - 9(9) + 3
↓ execute multiplication
45 - 81 + 3
↓ simplify by adding 81 and 3
45 - 84
↓ execute subtraction
-33
Answer:
[tex] \sf \: - 33 \: (if \: c = 9)[/tex]
Step-by-step explanation:
Given expression,
→ 5c - 9c + 3
Now we have to use,
→ c = 9
Simplifying the given expression,
→ 5c - 9c + 3
→ 5(9) - 9(9) + 3
→ 45 - 81 + 3
→ -36 + 3
→ -33 => (answer)
Hence, required answer is -33.
Write the expression in expanded notation for (-3 power of 5)
Step-by-step explanation:
A. Base = (-3)
B. Exponent = 5
C. (-3)^5
= (-3) × (-3) × (-3) × (-3) × (-3) (In expanded notation form)
D. Evaluation of equation will be = -243
Molly drew a blue line that was 19 1/12 inches long. Then she drew a green line that was
8 5/12 inches long. How much longer was the blue line than the green line?
Answer:
10 2/3 inStep-by-step explanation:
Subtract the values:
19 1/12 - 8 5/12 = 18 13/12 - 8 5/12 =18 - 8 + 13/12 - 5/12 = 10 + 8/12 =10 8/12 = 10 2/3 inA rope that is 6 meters long will be cut into 24 pieces that are all of the same
length. What will be the length of each piece, in centimeters?
Answer: I would say 4 centimeters
Step-by-step explanation: Well if 24 divided by 6 equals 4 then I would say 4
Based on the length of the rope and the number of pieces it is to be cut into, the length of each piece will be 25 cm long.
First covert the length of the rope to centimeters:
= 6 x 100
= 600 cm
The length of each piece will be:
= Length of rope / Number of pieces
= 600 / 24
= 25 cm
In conclusion, each piece will be 25 cm long.
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Order of operation help help help I have 10 min on the timer left!!! NO LINKS!!!!!!
Answer:
-11
Step-by-step explanation:
Answer:
I believe it's 39.
(9 - 2)^2 - |3 - 17| + 4
(7)^2 - |-14| + 4
49 - 14 + 4
35 + 4
39
De las soluciones de la siguiente ecuación: x2 + 8x − 30 = 18? Cual es el numero de mayor valor Entre.
Answer:
The correct answer is "x = 4" and "x = -12".
Step-by-step explanation:
The given equation is:
⇒ [tex]x^2+8x-30=18[/tex]
On subtracting "18" from both sides, we get
⇒ [tex]x^2+8x-30-18=18-18[/tex]
⇒ [tex]x^2+8x-48=0[/tex]
On applying factorization, we get
⇒ [tex]x^2+12x-4x-48=0[/tex]
On taking common, we get
⇒ [tex]x(x+12)-4(x+12)=0[/tex]
⇒ [tex](x-4)(x+12)=0[/tex]
⇒ [tex]x-4=0[/tex]
[tex]x=4[/tex]
or,
⇒ [tex]x+12=0[/tex]
[tex]x=-12[/tex]
Is a log graph increasing or decreasing?
A log graph can be either increasing or decreasing, depending on the function or data being graphed.
A log graph is a type of graph that displays the data on a logarithmic scale. That is, the values of the data are represented on a logarithmic scale, rather than on a linear scale. This type of graph is useful for displaying data or functions that span a wide range of values over a large range of exponents. The direction of the graph depends on the data being graphed or the function being shown. If the values of the data or the function being graphed increase over time, then the graph will be increasing. Conversely, if the values of the data or the function being graphed decrease over time, then the graph will be decreasing.
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Need help ASAP! due soon
Answer:
y= 2x
Step-by-step explanation:
no y cause the y-intercept is 0, so just y=2x
and i got 2 from dividing 24/12 and 48/24 giving me the x.
Answer:
Step-by-step explanation:
Two points on this line are (36, 72) and (0, 0). These are 'nice' points in that they are exactly at the intersection of grid lines.
The slope can be found immediately from (36, 72) if the other point is (0, 0):
m = rise / run = 72/36 = 2
Adapting the slope-intercept formula y = mx + b, and using the point (0, 0), we get 0 = 2(0) + b, which tells us that b = 0. Then the equation of the line in this graph is y = 2x.
the hcf of 13 and 13
Answer: The answer is 3
Step-by-step explanation:
Factors of 13 are 1, 13, and there are 2 integers that are factors of 13. The greatest factor of 13 is 3
The equation for the circle below is x2 + y2 = 16. What is the length of the
circle's radius?
Answer:
e) 4
Step-by-step explanation:
This is the form of a circle. Use this form to determine the center and radius of the circle.
(x−h)^2+(y−k)^2=r^2
r=4
h=0
k=0