There are 18 boys for every 54 girls (18:54 ratio)
There are 2 boys for every 6 girls (2 :6 ratio)
There is 1 boy for every 3 girls (1 ºr
ratio)
There are
boys for every
girls try
Find another equivalent ratio of boys and girls.
Si a mi edad le sumo 19, al resultado le pongo cero a la derecha, luego lo divido por 11, al cociente le resto 15, a la diferencia le extraigo la raíz cuadrada, a la raíz le sumo 3, le extraigo la raíz cúbica a la última suma, obteniéndose 2. ¿Cuál es mi edad?
Based on the information given, your our initial age is approximately 61.2 years old.
How to calculate the age?To calculate the age, we will need to apply the mathematical operations described in the opposite order:
Start with the number 2 and cube it: 2x2x2= 8.Add 3 to the result 8 + 3 = 11.Square the previous sum: 11x11 = 121.Subtract 15 from the squared value: 121 - 15 = 106.Square the previous difference: \(\sqrt{106}\) = 10.29We subtract 3 from the square root: 10.29 - 3 = 7.29.We divide the multiplied value by 11: 7.29 * 11 = 80.25We subtract 19 from the result: 80.2 - 19 = 61.2.Note: Here is the question in English
If I add 19 to my age, I put zero to the right of the result, then I divide it by 11, I subtract 15 from the quotient, I extract the square root from the difference, I add 3 to the root, I extract the cube root to the last sum, obtaining 2. What is my age?
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Joan wants to make a dinner plan for next week. how many different arrangements are there for the 7 days?
Answer:
5040
Step-by-step explanation:
an illustration of permutations
The given parameter is:
number of days
dinners for 7 days
Substitute known values
Find the perimeter of quadrilateral PQRS given that the coordinates of its vertices are
P(1,3),Q(3,1),R(1,−1), and S(−2,−1). You may round your answer to one decimal place.
\(~\hfill \stackrel{\textit{\large distance between 2 points}}{d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}}~\hfill~ \\\\[-0.35em] ~\dotfill\\\\ P(\stackrel{x_1}{1}~,~\stackrel{y_1}{3})\qquad Q(\stackrel{x_2}{3}~,~\stackrel{y_2}{1}) ~\hfill PQ=\sqrt{(~~ 3- 1~~)^2 + (~~ 1- 3~~)^2} \\\\\\ ~\hfill PQ=\sqrt{( 2 )^2 + ( -2)^2} \implies \boxed{PQ=\sqrt{ 8}}\)
\(Q(\stackrel{x_1}{3}~,~\stackrel{y_1}{1})\qquad R(\stackrel{x_2}{1}~,~\stackrel{y_2}{-1}) ~\hfill QR=\sqrt{(~~ 1- 3~~)^2 + (~~ -1- 1 ~~)^2} \\\\\\ ~\hfill QR=\sqrt{( -2)^2 + ( -2)^2} \implies \boxed{QR=\sqrt{ 8}} \\\\\\ R(\stackrel{x_1}{1}~,~\stackrel{y_1}{-1})\qquad S(\stackrel{x_2}{-2}~,~\stackrel{y_2}{-1}) ~\hfill RS=\sqrt{(~~ -2- 1~~)^2 + (~~ -1- (-1)~~)^2} \\\\\\ ~\hfill RS=\sqrt{( -3)^2 + ( 0)^2} \implies RS=\sqrt{ 9}\implies \boxed{RS=3}\)
\(S(\stackrel{x_1}{-2}~,~\stackrel{y_1}{-1})\qquad P(\stackrel{x_2}{1}~,~\stackrel{y_2}{3}) ~\hfill SP=\sqrt{(~~ 1- (-2)~~)^2 + (~~ 3- (-1)~~)^2} \\\\\\ ~\hfill SP=\sqrt{( 3)^2 + ( 4)^2} \implies SP=\sqrt{ 25}\implies \boxed{SP=5} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{ \textit{\LARGE Perimeter} }{\sqrt{8}+\sqrt{8}+3+5} ~~ \approx ~~ \text{\LARGE 13.7}\)
A street light is at the top of a 15 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the length of her shadow increasing when she is 50 ft from the base of the pole
Answer:
4 ft/sec
Step-by-step explanation:
Hope it helps
What's the numerator for the following
rational expression?
3 5 ?
+
k
74
k
k
Enter the correct answer.
The numerator for the given rational expression is 3 + 5k.
In the given rational expression, (3 + 5k) represents the numerator. The numerator is the part of the fraction that is located above the division line or the horizontal bar.
In this case, the expression 3 + 5k is the numerator because it is the sum of 3 and 5k. The term 3 is a constant, and 5k represents the product of 5 and k, which is a variable.
The numerator consists of the terms 3 and 5k, which are combined using addition (+). Therefore, the numerator can be written as 3 + 5k.
To clarify, the numerator is the value that contributes to the overall value of the fraction. In this case, it is the sum of 3 and 5k.
Hence, the correct answer for the numerator of the given rational expression (3 + 5k) / (74/k^2) is 3 + 5k.
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Suppose you are going to draw two cards from a standard deck without replacement. What is the probability that the first card is an Ace and the second card is a Jack?
Answer:
4/663
Step-by-step explanation:
1/13 = probability of ace (as 1st card)
4/51 = probability of jack (as 2nd card) -->
4/663
The probability that the first card is an Ace and the second card is a Jack without replacement will be 0.00603318 or 4/663.
What is probability?The probability of an event occurring is defined by probability.
Probability is also known as chance because, if you flip a coin, the likelihood that it will land on its head or tail is nothing more than the chance that either the head or the tail will occur.
In our daily time, there are several instances in the everyday world where we may need to draw conclusions about how everything will turn out.
Without replacement will be dependent events.
Probability of dependent events
P(A and B) = P(A) × P(B/A).
Probability of the first card as Ace = 4/52 ( 4 are Aces out of 52 cards)
Probability of the second card as jack = 4/51 ( since 1 ace has been removed)
P( Ace and Jack ) = 4/52 × 4/51 = 4/663 = 0.00603318
Hence the probability that the first card is an Ace and the second card is a Jack will be 0.00603318.
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Emily is buying a new mountain bike on layaway for $324 if she pays $54 each week how many weeks will it take Emily to pay for the mountain bike?
Answer: 6 weeks
Step-by-step explanation: $54 x 6 = $324
y=3x-7 Complete the missing value in the solution to the equation. (1,_)
Answer:
minus 4
Step-by-step explanation:
answers in the photo thanks
if a×b÷2=a÷2 then b =
enign
1)
The radius of a circular rug is 4 feet. How much ribbing will you need to buy to go around the rug? Use 3.14 for it
ime
maining
00:36
Tools
A)
13 feet
Eliminate
B)
26 feet
51 feet
D)
102 feet
O
0
The length of my rectangular garden is 1 foot more than twice its width. The area of my garden is 55 square feet. What are the dimensions of my garden?
Answer:
Width = 5
Length = 11
Step-by-step explanation:
Let :
Width, = x
Length = 2x + 1
Area of rectangular garden is given as 55 ft²
Area of a rectangular garden, A = Length * width
Hence,
x * (2x + 1) = 55
2x² + x = 55
2x² + x - 55 = 0
Using the quadratic equation formula :
a = 2 ; b = 1, c = - 55
-b ± sqrt(b² - 4ac) / 2a
Using the quadratic equation solver to save computation time :
The roots are :
-5.5 and 5
Dimension can't be negative ; so x = 5
Hence,
width, x = 5
Length, 2x + 1 = 2(5) + 1 = 10 + 1 = 11
Hence,
Width = 5
Length = 11
if you borrow $700 for 5 years at an annual interest rate of 7% how much will you pay altogether
Answer:25,000.00
Step-by-step explanation:
If you borrow $700 for 5 years at an annual interest rate of 7%, and the loan requires you to make equal monthly payments, then the total amount you will pay back depends on the type of loan and payment schedule. Assuming a simple interest loan with equal monthly payments, you will pay a total of $814.20 over the course of the loan.
This calculation is based on the following assumptions:
The interest rate is simple interest, meaning that it is applied only to the principal amount of the loan.
The loan has a fixed interest rate for the entire term.
The loan requires you to make equal monthly payments, which include both principal and interest.
So, if you borrow $700 for 5 years at an annual interest rate of 7%, and you make equal monthly payments over the term of the loan, you will pay a total of $814.20.
3. Given w = 10, what is the answer to w+ (w-12÷2².3) 7?
A.073
B.066
C.023
D.017
\(\huge\text{Hey there!}\)
\(\textsf{Assuming:}\)
\(\mathsf{w + (w - \dfrac{12}{2^2} \times 3)(7)}\)
\(\textsf{If so:}\)
\(\mathsf{w + (w - \dfrac{12}{2^2} \times 3)(7)}\)
\(\mathsf{= 10 + (10 - \dfrac{12}{2^2} \times 3)(7)}\)
\(\mathsf{= 10 + (10 - \dfrac{12}{2\times2} \times 3)(7)}\)
\(\mathsf{= 10 + (10 - \dfrac{12}{4} \times 3)(7)}\)
\(\mathsf{= 10 + (10 -3 \times 3)(7)}\)
\(\mathsf{= 10 + (10 - 9)(7)}\)
\(\mathsf{= 10 + (1)(7)}\)
\(\mathsf{= 10 + 7}\)
\(\mathsf{= 17}\)
\(\huge\textsf{Therefore, your answer should be:}\)
\(\huge\boxed{\textbf{Option D. }\frak{017}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:)}\)
Holding other things constant, what is the effect of (a) sample size and (b) variation in x on the variance of the OLS estimator?
(a) Sample size: Increasing the sample size decreases the variance of the OLS estimator. (b) Variation in X: Greater variation in X leads to higher variance in the OLS estimator.
(a) Sample Size: Increasing the sample size tends to reduce the variance of the Ordinary Least Squares (OLS) estimator. As the sample size grows larger, the estimator becomes more precise and better captures the true underlying relationship between the variables. With more observations, the OLS estimator tends to average out random errors, leading to a decrease in variance. However, if there are influential outliers or systematic biases present in the data, increasing the sample size may not necessarily result in a significant reduction in the variance.
(b) Variation in X: The variance of the OLS estimator is influenced by the variation in the independent variable (X). When there is greater variation in X, the OLS estimator tends to have higher variance. This occurs because a wider range of X values can lead to a wider range of predicted Y values, resulting in larger deviations from the true regression line. In contrast, if there is less variation in X, the OLS estimator will have lower variance as the predicted Y values will be more tightly clustered around the regression line. Therefore, an increase in the variation of X tends to increase the variance of the OLS estimator.
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if the number of births in a population are greater than the number of deaths and the emigration rate is 2x the immigration rate what is likely to happen to the population size over time?
The rate of increase in population size will depend on the magnitude of the difference between the birth and death rates, as well as the extent of emigration and immigration.
If the number of births in a population are greater than the number of deaths and the emigration rate is 2x the immigration rate, then the population size is likely to increase over time. This is because there are more individuals being born than dying, and even though there is a higher emigration rate, the net effect is still an increase in population size. However, the rate of increase in population size will depend on the magnitude of the difference between the birth and death rates, as well as the extent of emigration and immigration.
If the number of births in a population is greater than the number of deaths, and the emigration rate is 2x the immigration rate, the population size is likely to experience some growth due to the excess of births over deaths. However, the growth may be slowed down or even potentially decrease over time, as the higher emigration rate could lead to more people leaving the population than entering it. The overall change in population size will depend on the balance between these factors.
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A box that has a width of 3 inches and a length of 4 inches is used to ship a
part. The part lies along the diagonal of the bottom of the box. What is the
longest possible length of the part?
3 in
4 in
A. 2 in
O
B. 7 in
O C. 1 in
D. 5 in
Answer:D.5
Step-by-step explanation:
a red die and a blue die are rolled. you win or lose money depending on the sum of the values of the two dice.if the sum is 5, 6, or 8, you win $5.if the sum is 4, 9, or 10, you win $2.if the sum is any other value (2, 3, 7, 11, or 12), you lose $4.let x be a random variable that corresponds to your net winnings in dollars. what is the expected value of x?
The expected value of your net winnings, x, is $1.39.
To find the expected value of x (net winnings), first calculate the probability of each outcome and multiply it by the respective winnings. There are 6 sides on each die, so there are 36 possible outcomes (6 sides on red die * 6 sides on blue die).
1. Winning $5: Sum of 5, 6, or 8 has 4+5+5 = 14 successful outcomes. Probability = 14/36.
2. Winning $2: Sum of 4, 9, or 10 has 3+4+3 = 10 successful outcomes. Probability = 10/36.
3. Losing $4: Sum of 2, 3, 7, 11, or 12 has 1+2+6+2+1 = 12 successful outcomes. Probability = 12/36.
Now, multiply each probability by its respective winnings/loss and sum them to find the expected value of x:
E(x) = ($5 * 14/36) + ($2 * 10/36) + (-$4 * 12/36) = $1.39
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last thing please put the right answer. person who i will not mention.
Answer:The first one
Step-by-step explanation:
Cheap data's distribution is more symmetrical
find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis. label the points of intercepts of the curves. sketch the region, the solid, and a typical disk or washer . show all your work.
The volume of the solid the region defined by the given curves must be rotated about the x-axis is V = \(\frac{384\pi }{5}\).
Given that,
The region defined by the given curves must be rotated about the x-axis to determine the solid's volume, which is y =6 -x², y =2.
We know that,
Take the equation of the curves about the x- axis
y =6 -x², y =2.
Substitute y = 2 in equation y = 6 - x²
2 = 6 - x²
-x² = 2-6
x² = 4
Taking square root on both sides
x = ±2
Now, volume formula is define by using washer method
V = \(\pi \int\limits^a_b {[f(x)]^2 - [g(x)]^2} \, dx\)
V = \(\pi \int\limits^2_{-2} {[6-x^2]^2 - [2]^2} \, dx\)
V = \(\pi \int\limits^2_{-2} {(36 + x^4 - 12x^2 - 4}) \, dx\)
V = \(\pi \int\limits^2_{-2} {(x^4 - 12x^2 - 32)} \, dx\)
V = \(\pi( [\frac{x^5}{5}] - 12\times\frac{x^3}{3} -32x)^2_{-2}\)
V = \(\pi[( [\frac{2^5}{5}] - 12\times\frac{2^3}{3} -32(2))-([\frac{-2^5}{5}] - 12\times\frac{-2^3}{3} -32(-2))]\)
V = \(\pi[( [\frac{32}{5}] - 4 \times 8 -64)-( [\frac{-32}{5}] - 4\times(-8) +64)]\)
V = \(\pi[( [\frac{32}{5}] - 32 -64)-( [\frac{-32}{5}] +32 +64)]\)
V = \(\pi( [\frac{384}{5}] )\)
V = \(\frac{384\pi }{5}\)
Therefore, The volume of the solid is V = \(\frac{384\pi }{5}\)
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the slope of the line is
Answer:
what line
Step-by-step explanation:
what line cause i dont see one
HELP ITS DUE TODAY!!!!!!!!!!!!!!!!!!!!!!!!!!
Find the values of x, y, and z in the diagram below. Remember what we learned about the interior and exterior angles of triangles!
Answer/Step-by-step explanation:
x + 74° + 20° = 180° (sum of interior angles of a triangle)
x + 94° = 180°
x = 180° - 94° (subtraction property of equality)
x = 86°
y = 74° + 20° (exterior angle theorem of a triangle)
y = 94°
y + z + 32° = 180° (sum of interior angles of a ∆)
Plug in the value of y
94 + z + 32 = 180
z + 126 = 180
z = 180 - 126
z = 54°
It has been reported that 20% of the voters were not in support of immigration reform in the country. A sample of 400 voters were randomly selected. (a) (6 points) Find the mean and the standard deviation of the number of voters that are not in support of immigration reform in the country. (a) (b) (6 points) Find the probability of getting exactly 75 of them that are not in support of immigration reform in the country. (b) (c) (5 points) Find the probability of getting more than 100 of them that are not in support of immigration reform in the country. (c) (d) (8 points) Find the probability of getting between 70 and 90, inclusive, of them that are not in support of immigration reform in the country.
(a) To find the mean and standard deviation of the number of voters not in support of immigration reform, we use the formula for the mean and standard deviation of a binomial distribution:
Mean (μ) = n * p
Standard Deviation (σ) = √(n * p * (1 - p))
Given that the sample size (n) is 400 and the probability (p) is 0.20, we can calculate:
Mean (μ) = 400 * 0.20 = 80
Standard Deviation (σ) = √(400 * 0.20 * (1 - 0.20)) = √(400 * 0.20 * 0.80) = √64 = 8
So, the mean number of voters not in support of immigration reform is 80, and the standard deviation is 8.
(b) To find the probability of getting exactly 75 voters not in support of immigration reform, we use the binomial probability formula:
P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)
Substituting the values, we have:
P(X = 75) = C(400, 75) * (0.20)^75 * (1 - 0.20)^(400 - 75)
You can use a calculator or software to evaluate this expression.
(c) To find the probability of getting more than 100 voters not in support of immigration reform, we need to calculate the sum of probabilities for all values greater than 100:
P(X > 100) = P(X = 101) + P(X = 102) + ... + P(X = 400)
Again, you can use a calculator or software to evaluate this expression.
(d) To find the probability of getting between 70 and 90 (inclusive) voters not in support of immigration reform, we need to calculate the sum of probabilities for all values between 70 and 90:
P(70 ≤ X ≤ 90) = P(X = 70) + P(X = 71) + ... + P(X = 90)
Use a calculator or software to evaluate this expression.
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use the graph below to find the cost of 6 show tickets.
A. the cost of six show tickets
B. The cost of 6 show tickets is $6.
C. The cost of 6 show tickets is $30.
D The cost of 6 show tickets is $5
Answer:
C. The cost of show tickets is $30
Step-by-step explanation
-10x + 3y = -30
-8x + 9y = -24
how do i answer this/what is the answer to this
Answer:
$6.43
Explanation:
The given problem can be solved using the exponential growth equation below;
\(y=a(1+r)^x\)where a = the initial cost in 2003 = $4.75
r = rate in decimal = 1.8% = 1.8/100 = 0.018
x = number of years = 17 years
Let's go ahead and substitute the above values into the equation and solve for y;
\(\begin{gathered} y=4.75(1+0.018)^{17} \\ y=\text{ \$6.43} \end{gathered}\)An isosceles triangle has an angle that measures 110°. Which other angles could be in that isosceles triangle? Choose all that apply: 110 55 35 15
Answer:
35 degrees
Step-by-step explanation:
An isosceles triangle has two opposite sides. If the two angles are equal , it means the triangle is an isosceles. Because 90 degrees is greater than 45 degrees, the two sides with the same length, would have a smaller length than the third side
sum of angles in a triangle = 180
180 - 110 = 70
since 2 angles would be equal
70 / 2 = 35
50 POINTS (and its easy im just kinda dmb)
find the number of possible outcomes
1. A softball player bats six times in a game. Each at-bat results in an out, getting on base or hitting a homerun.
2. A sandwich shop has three types of sandwiches: ham, turkey, and chicken. Each s andwich can be ordered with white bread or multi-grain bread. Customers can add any combination of the six available toppings
Answer: 1.18 possibilities 2. 36 possibilities
Step-by-step explanation:
1. 1o, 1g, 1h, 2o, 2g, 2h, 3o, 3g, 3h, 4o, 4g, 4h, 5o, 5g, 5h, 6o, 6g, 6h
2. hw1 hw2 hw3 hw4 hw5 hw6, hg1 hg2 hg3 hg4 hg5 hg6, tw1 tw2 tw3 tw4 tw5 tw6, tg1 tg2 tg3 tg4 tg5 tg6, cw1 cw2 cw3 cw4 cw5 cw6, cg1 cg2 cg3 cg4 cg5 cg6
The value of a piece of property is growing at a rate of 3.5% annually. If the property was worth $125,000 when it was purchased, which equation could be used to determine the value of the property,x , years after it was purchased?
A.Y = 125000(3.5)x B. y = 125000(0.0035)x
C. y = 125000(1.035)x D. y = 125000(0.965)x
C.) Y = 125000(1.035)x
Step-by-step explanation:
I took the test and got it right
Can you make a triangle with the lengths 10in, 3in and 10in? If so, is it acute, obtuse or right?
Answer:
Obtuse
Step-by-step explanation:
Cause the obtuse has the right angle for those inches i counted it all up