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1
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White shapes and black shapes are used in a game.
Some of the shapes are circles.
All the other shapes are squares.
OD
The ratio of the number of white shapes to the number of black shapes is 5:11
The ratio of the number of white circles to the number of white squares is 3:7
The ratio of the number of black circles to the number of black squares is 3:8
Work out what fraction of all the shapes are circles
9/32 is fraction of all the shapes are circles .
What does a math ratio mean?
An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. For instance, you could express the ratio as follows: 1: 3 if there is 1 boy and 3 girls (for every one boy there are 3 girls)Find the equivalent ratio for the total shapes:
Total Black Shapes : Total White Shapes = 5 : 11
Multiply by 2:
Total Black Shapes: Total White Shapes = 10 : 22
Find the ratio for the white shapes:
White circles : White squares = 3 : 7
Sum of the units = 3 + 7
Sum of the units = 10
Find the equivalent ratio for the total shapes:
Black circles : Black squares = 3 : 8
Multiply by 2:
Black circles : Black squares = 6 : 16
Sum of the units = 6 + 16
Sum of the units = 22
Combine the ratios:
white circles : white squares : black circles : black square = 3 : 7 : 6 : 16
Circles = 3 + 6
Circles = 9 units
Total = 3 + 7 + 6 + 16
Total = 32 units
Find the fraction of all the shapes that are circles:
Fraction = 9/32
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a croissant shop has plain croissants, cherry croissants, chocolate croissants, almond croissants, apple croissants, and broccoli croissants. how many ways are there to choose ) two dozen croissants with at least two of each kind?
There are 6188 ways are there to choose two dozen croissants with at least two of each kind.
A combination is the combination of two or more distinct things. Although it is not necessary to combine things in pairs, the term "combining" comes from the Latin word for "joining together two by two."Combination repetition is permitted.
There are six different varieties of croissants (n = 6), and we must select two dozen croissants (r = 12) with at least two of each type.
In combination, The order does not matter and repetition is allowed.
thus, according to combination,
\(C( n+ r - 1,r) = \frac{(n + r - 1 )!}{r! (n-1)!} \\\\C( 6+ 12 - 1,12) = \frac{(6 + 12 - 1 )!}{12! (6-1)!} \\\\ = \frac{17!}{12!5!} \\= 6188\)
thus, there are 6188 ways possible to choose two dozen croissants with at least two of each kind.
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plz plz plz plzp lzp l help
Answer:
1.037 x 10^7
Step-by-step explanation:
what is the expression for nine times the difference of a number and four ?
Answer:
-30
Step-by-step explanation:The answer is -30. Hope this helps.
A line with a slope of 5 passes through the point (3, 8). What is the value of its y-intercept?
Answer:
(0,-7)
Step-by-step explanation:
y=5x-7 is slope
By how much does the outlier in the following data set increase the range of the data set?
{38, 58, 81, 66, 42, 43, 40, 81, 73, 47, 56, 85, 256}
218
171
47
256
Answer:
171
Step-by-step explanation:
Range without outlier = 85 maximum - 38 minimum = 47
Range with outlier = 256-38 = 218
increase = 218-47 = 171
El-6,5), F(3, -3)
find the slope
Answer: Slope = -8/9 using the slope formula
Step-by-step explanation:
For cones with radius 6 units, the equation V=12πh relates the height h of the cone, in units, and the volume V of the cone, in cubic units.
The graph of the equation is attached below and this can be determined by using the formula of the volume of the cone and the slope-intercept form of the line
Given :
For cones with a radius of 6 units, the equation V=12h relates the height h of the cone, in units, and the volume V of the con, in cubic units.
The volume of the cone is given by the formula:
v = 1/3. π .r².h
Now, substitute the value of r in the above formula.
v = 12πh
Now, compare this equation with a slope-intercept form which is given by:
y = mx + c
where m is the slope and c is the y-intercept.
From comparing the equation, it can be concluded that:
y = V
x = h
c = 0
m = 12
Now, draw the graph of the line that passes through the origin. The graph is attached below.
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A bowl has 8 green grapes out of a total of 32 grapes.
What percent of the grapes in the bowl are green?
Enter your answer in the box.
%
find the angle measures of trapezoid BCED
Answer:
BCDE= 100+ 80+100+80 = 360 degree
BAC = 20 degree
DBC = 100 degree
BDE = 80 degree
Step-by-step explanation:
Shows all is correct
We associate isosceles trapezoid in this question, this helps us prove with angle A in the triangle vertices how we can find one of the adjacent angles from the trapezoid by subtraction when all angles within one single trapezoid = 360 degrees. We can use 20 degree angle A to subtract and find each alternative angle easier.
Step-by-step explanation:
The semi circle shows 9 stones
Where angles are interior to the trapezoid
Where all 4 sided shapes add up to 360 degree
We draw a line of symmetry on BCED angle
To make midway points BC and DE = 90 degree
The two new formed shapes are still 4 sided and add up to 360 degree.
BC + DE = 180 degree
BDE = Triangle 180 -20/2 = 160/2 = 80
BCDE = Trapezoid = 360
Trapezoid angle DBC = 360-80-80/2 = 360-160/2 = 200/2 = 100 degree
Finding interior angle A (BAC)
BAC = 180/9 = 20 degree
BAC * (2) = 360 degree circle
BAC = 360/18 = 20 degree
Proves BAC = 20 degree
20 degree is used in BAC workings above in bold and proves all trapezoid angles are correct. We now know this is an isosceles trapezoid and that is why symmetry and midway points can help us find the angles without any given length.
PLEASE answer THIS QUESTION CORRECTLY AND ILL MARK YOU AS THE BRAINLIEST
Answer:
137
Step-by-step explanation:
I hope this helps
How many pages did Juan read if he read 1 3/4 times as many pages as Rosa. Lee read 140 3/4 pages which was 36 1/3 pages more than the number of pages that Rosa read
Answer:
\(182\frac{35}{48}\)
Step-by-step explanation:
To find the number of pages Rosa read subtract 36 1/3 from 140 3/4
140 3/4-36 1/3= 104 5/12
Then multiply 1 3/4 to that to get how many pages Juan read
The answer will be \(182\frac{35}{48}\)
what is the value of (3-5)^4 (2)-16+2?
simplify this problem\( \frac{9x}{4x - 4} + \frac{ {x}^{2} + 6x }{ {x}^{2} + 5x - 6} \)
1. Factor the denominators as follow:
\(\begin{gathered} 4x-4=4(x-1) \\ \\ \\ x^2+5x-6 \\ =x^2+6x-x-6 \\ =x(x+6)-(x+6) \\ =(x-1)(x+6) \\ \\ \\ \\ \\ \frac{9x}{4(x-1)}+\frac{x^2-6x}{(x-1)(x+6)} \end{gathered}\)2. Write the expresion with the less common denominator:
Multiply the first fraction by (x+6) (both parts, numerator and denominator):
\(\frac{9x}{4(x-1)}\cdot\frac{x+6}{x+6}=\frac{9x(x+6)}{4(x-1)(x+6)}\)Multiply the second fraction by 4 (both parts, numerator and denominator):
\(\frac{x^2-6x}{(x-1)(x+6)}\cdot\frac{4}{4}=\frac{4(x^2-6x)}{4(x-1)(x+6)}\)Rewrite the expression with the less common denominator:
\(\begin{gathered} \frac{9x(x+6)}{4(x-1)(x+6)}+\frac{4(x^2-6x)}{4(x-1)(x+6)} \\ \\ =\frac{9x(x+6)+4(x^2-6x)}{4(x-1)(x+6)} \end{gathered}\)3. Remove parentheses and simplify:
\(\begin{gathered} \frac{9x^2^{}+54x+4x^2-24x}{(4x-4)(x+6)} \\ \\ =\frac{13x^2+30x}{4x^2+24x-4x-24} \\ \\ =\frac{13x^2+30x}{4x^2+20x-24} \end{gathered}\)Then, the given expression simplified is:\(\frac{9x}{4x-4}+\frac{x^2-6x}{x^2+5x-6}=\frac{13x^2+30x}{4x^2+20x-24}\)
The doctor told her patient that every day he needs
to consume more than 1800 but less than 1900 calories.
Write an inequality representing the possible amount of
calories the patient could cconsume.
True or False: The following pair of ratios forms a proportion.
1/3 and 18/8
Select one:
O True
O False
Answer:
False because for two fractions to be proportional they must be equivalent
whats bigger 1/4 1/10
Answer:
1/4
Step-by-step explanation:
its bigger
Answer:
1/4 is greater
the election of 2000 demonstrated that a poll isn't reliable if which of the following occurs?responsesthe election is too close to call.the election is too close to call.the sample is biased.the sample is biased.the sample is too small.the sample is too small.too many states are red.
The election of 2000 demonstrated that a poll may not be reliable if the sample size is too small (option d).
The factor that can impact the reliability of a poll is bias. If the sample is biased, it may not accurately represent the larger population, leading to skewed results. Bias can occur in several ways, such as selecting a sample that is not representative of the larger population, asking leading questions, or using a sampling method that favors a particular group.
In the 2000 election, both of these factors contributed to the unreliability of the polls. The race was extremely close, with the outcome depending on the results in a few key states. Pollsters struggled to accurately predict the outcome of the election, with some predicting a win for Al Gore and others predicting a win for George W. Bush.
Additionally, the sample sizes and methods used by pollsters were called into question. Some pollsters used small sample sizes, while others were accused of bias in their sampling methods. The combination of these factors led to unreliable poll results and uncertainty about the outcome of the election.
Hence the correct option is (d).
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Which of the following statements contains a quotient?
A. 7 + 6 = 13
B. 7 - 6 = 1
C. 42 : 6 = 7
D. 7 x6 = 42
Answer:
C is a quotient
Step-by-step explanation:
quotient it the number you get from equally dividing a number
which of the following has factor of (× - 4) (× - 3)?
Answer:
Hello!
After reading your question I have come up with the correct way to factor (x-4) and (x-3) together:
x²-7x+12
Step-by-step explanation:
This is my work:
Given point Q equals negative 5 comma negative 5 radical 3 in rectangular coordinates, what are the corresponding polar coordinates?
The corresponding polar coordinates are (10, 2π/3). Option B
How to determine the valueFrom the information given, we have;
(-5, 5√3)
Given that the polar coordinates are represented as;
r = √(x² + y²)
θ = arctan(y / x)
We get;
\(r = \sqrt{(-5)^2} + (\sqrt{5} /3)^2\)
Find the value of square, we have;
r = \(\sqrt{25 + 75}\)
Add the values, we get;
r = \(\sqrt{100}\)
Find the square root
r = 10
To determine the value of theta, we get;
θ = arctan((-5√3) / -5)
Divide the values, we have;
θ = arctan(√3)
θ = 60 degrees
Then, we have; (10, 2π/3)
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If an automobile slows from 26 m/s 18 m/s in the period of 4.0 s what was the average acceleration
Answer: -2
Step-by-step explanation:
I need an explanation for this.
Fries 420 grams = $2.77
How much if its 1kg?
NEED HELP ASAP PLS
10. Jimmy was a busboy and makes 7.15 per hour. Ashley is a server and makes 3.40 per hour plus about $105 in tips per week. how many hours would they have to work to make the same amount?
Answer: 28 hours
Step-by-step explanation:
1. Write original equation: 7.15x=3.40x+105
2. Combine like terms to isolate x: 3.75x=105
3. Divide both sides by same amount to find x: x=28
They would have to work 28 hours to earn the same amount of money.
The circumference of a circle is given by the formula C =2πr where r is the measure of the radius?
Answer: 24
Step-by-step explanation:
The perimeter of the length of the rectangle is 24. The perimeter or circumference of the circle can be found using the equation C=2π(r), where r= the radius of the circle. Since we have two semi-circles we can find the circumference of one whole circle with a radius of 4, which would be 8π.
Write without negative exponents: (3xy^−3)^−2
The expression \((3xy^{-3})^{-2}\) without negative exponents is \(\frac{y^6}{9x^2}\).
What are some rules of exponents?Some common rules of exponents are
xᵃ×xᵇ = xᵃ⁺ᵇ.
xᵃ/xᵇ = xᵃ⁻ᵇ.
Addition and subtraction of exponents are only possible for the same base value and when the base is different and both have the same exponent we just multiply the bases and write the exponent.
Given, An expression in exponents \((3xy^{-3})^{-2}\).
Now, Changing the place of exponents from the numerator to the denominator or vice versa changes its sign.
Therefore, \((3xy^{-3})^{-2} = 3^{-2}x^{-2}y^{6}\).
\(3^{-2}x^{-2}y^{6} = \frac{y^6}{3^2x^2}\).
\(\frac{y^6}{3^2x^2} = \frac{y^6}{9x^2}\).
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12. Write the MATLAB statements required to calculate f(t) using the following equation for values of t € [-9,9] in steps of 0.5. f(t) = { (-3t² +5 t 20 3t² +5 t < 0 13. Write a MATLAB function named UniGen that generates a specified number (n) of random values that are uniformly distributed on any given interval specified by values a and b, that is, [a, b].
12. MATLAB code: `f = (-3*t.^2 + 5*t + 20).*(t < 0) + (3*t.^2 + 5*t).*(t >= 0)`
13. MATLAB function: `function random_values = UniGen(n, a, b); random_values = (b - a) * rand(n, 1) + a; end`
MATLAB code to calculate f(t) using the given equation:
t = -9:0.5:9; % Generate values of t from -9 to 9 in steps of 0.5
f = zeros(size(t)); % Initialize f(t) vector
for i = 1:numel(t)
if t(i) < 0
f(i) = -3*t(i)^2 + 5*t(i) + 20;
else
f(i) = 3*t(i)^2 + 5*t(i);
end
end
% Display the results
disp('t f(t)');
disp('--------');
disp([t' f']);
```
This code generates values of `t` from -9 to 9 in steps of 0.5 and calculates `f(t)` based on the given equation. The results are displayed in a tabular format showing the corresponding values of `t` and `f(t)`.
13. MATLAB function UniGen to generate uniformly distributed random values:
function random_values = UniGen(n, a, b)
% n: Number of random values to generate
% a: Start of the interval
% b: End of the interval
random_values = (b - a) * rand(n, 1) + a;
end
This MATLAB function named `UniGen` generates `n` random values that are uniformly distributed on the interval `[a, b]`. It utilizes the `rand` function to generate random values between 0 and 1, which are then scaled and shifted to fit within the specified interval `[a, b]`. The generated random values are returned as a column vector.
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find and sketch the domain of the function. f(x,y)= sqrt (y) + sqrt [25-(x^2)-(y^2)]
The domain of the function is a semicircle with a radius of 5 and centered at the origin, where y is non-negative.
The domain of a function is the set of all possible input values for which the function is defined. In this case, the function is defined as:
\(f(x,y) = \sqrt{y} + \sqrt{[25 - x^2 - y^2} ]\)
To find the domain of this function, we need to determine the values of x and y that would result in the function producing a real-valued output.
For the square root of y to be real, y must be non-negative. That is, y ≥ 0.
For the square root of [\(25 - x^2 - y^2\)] to be real, we must have:
\(25 - x^2 - y^2 \geq 0\\x^2 + y^2 \leq 25\)
This is the equation of a circle with radius 5 centered at the origin. Therefore, the domain of the function is the set of all points (x, y) that lie inside or on this circle and have y ≥ 0.
In interval notation, we can write:
Domain: {(x, y) |\(x^2 + y^2 \leq 25, y \geq 0\)}
To sketch the domain, we can plot the circle with radius 5 centered at the origin and shade the region above the x-axis. This represents all the valid input values for the function. The boundary of the domain is the circle, and the domain includes all points inside the circle and on the circle itself, but not outside the circle.
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a hose fills hot tub at 4.6 gallons per minute. how many hours will it take to fill a 440-gallon hot tub?
It will take approximately 1.59 hours to fill the hot tub with a hose that has a filling rate of 4.6 gallons per minute
Assuming that the filling rate of the hose is constant, we can use the formula:
time = volume / rate
where time is the time taken to fill the hot tub, volume is the volume of the hot tub (440 gallons), and rate is the filling rate of the hose (4.6 gallons per minute).
Substituting the values, we get:
time = 440 / 4.6
which simplifies to:
time = 95.65 minutes
To convert minutes to hours, we divide by 60 (since there are 60 minutes in an hour):
time = 95.65 / 60
which simplifies to:
time = 1.59 hours
Therefore, it will take approximately 1.59 hours to fill the hot tub with a hose that has a filling rate of 4.6 gallons per minute.
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It will take approximately 1.594 hours to fill a 440-gallon hot tub with a hose that fills at a rate of 4.6 gallons per minute.
To determine how many hours follow these steps:
First, we need to find out how many minutes it takes to fill the hot tub.
Divide the total volume of the hot tub (440 gallons) by the rate at which the hose fills (4.6 gallons per minute):
440 gallons ÷ 4.6 gallons/minute = 95.65 minutes
Now, we need to convert the minutes into hours.
Since there are 60 minutes in an hour, divide the minutes by 60:
95.65 minutes ÷ 60 minutes/hour = 1.594 hours
It will take approximately 1.594 hours to fill a 440-gallon hot tub with a hose that fills at a rate of 4.6 gallons per minute.
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