In a class of 30 students 13 of them are boys what percentage of them are girls

Answer:

$34.20

Step-by-step explanation:

total spent =3.80*9=$34.20

Answer:

Estimate of crowd is 27456.

Step-by-step explanation:

Given that a square of 5 by 5 can have 13 students.

Area of a square = \(side^2\) = 25

Area of 25 can have 13 students.

Now, it is given that 10 feet square are used for crowd.

Area of square of side 10 feet  = 100

So, area of 100 can have 13 \(\times\) 4 = 52 people from crowd

Now, it is given that the parade route is 1 mile long.

1 mile = 5280 feet

1 mile = 528 \(\times\) 10 feet

It means that there are 528 number of such squares on the 1 mile section of the parade route.

Kindly refer to the attached image as well.

So, number of people or the estimate of the size of crowd is:

528 \(\times\) 52 = 27456

The smaller cannonball weighs approximately 4 pounds less than the larger cannonball. To find the weight of the smaller cannonball, we can use the formula for the volume of a sphere and the density of the material it is made of.

The displacement of water by a submerged object is directly proportional to the volume of the object. Therefore, the smaller cannonball has a volume of 33.5 cubic inches. To find its weight, we can use the formula for the volume of a sphere, which is V = (4/3)πr^3, where V is the volume and r is the radius of the sphere. Rearranging the formula to solve for r, we get r = (3V/4π)^(1/3). Substituting the volume of the smaller cannonball into the formula, we get a radius of approximately 1.84 inches.

To find the weight of the smaller cannonball, we can use the formula for the volume of a sphere and the density of the material it is made of. Assuming the cannonball is made of iron, which has a density of 0.284 pounds per cubic inch, we can calculate its weight as W = V * D, where W is the weight, V is the volume, and D is the density. Substituting the volume of the smaller cannonball and the density of iron into the formula, we get a weight of approximately 3.76 pounds.

The weight of the larger cannonball can be found in a similar manner. Since the larger cannonball displaces more water than the smaller one, it must have a greater volume and hence a greater weight. Therefore, the difference in weight between the larger and smaller cannonball is approximately 4 pounds (assuming they are both made of iron).

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Answer:

Cómo se vería si estuviera graficado:

2x−y=−2

3x−3y=15

Cómo se vería si lo resolviera graficando:

(−7,−12)

Answer:

Step-by-step explanation:

2x - y = -2

3x - 3y = 15

-6x + 3y = 6

3x - 3y  = 15

-3x = 21

x = -7

2(-7) - y = -2

-14 - y = -2

-y = 12

y = -12

(-7, -12)

Answer:

ok im telling people to help u because i dont know that xd

Step-by-step explanation:

This is a logical symbol, represented by the symbol â, which introduces a variable and asserts that any symbol that can be bound to that variable will satisfy a following statement.

In your example, the variable is "x" and the statement being asserted is "x is red or green". This means that for any apple that can be represented by the variable "x", it will either be red or green. So the statement can be written as: "âx (x is an apple -> x is red or green)" which reads as "for all apples x, x is red or green".
In order to assert that for all apples x, x is red or green using the universal quantifier, we can formulate the statement as follows:
∀x (A(x) → (R(x) ∨ G(x)))

Here's a step-by-step explanation of the statement:
1. "∀x" is the universal quantifier, which introduces the variable 'x' and asserts that the following statement holds for all possible values of 'x'.
2. "A(x)" represents the property of being an apple for the variable 'x'.
3. "R(x)" represents the property of being red for the variable 'x'.
4. "G(x)" represents the property of being green for the variable 'x'.
5. "R(x) ∨ G(x)" represents the disjunction (logical OR) of 'x' being red or green.
6. "A(x) → (R(x) ∨ G(x))" is the statement that if 'x' is an apple, then 'x' is either red or green.
So, the statement ∀x (A(x) → (R(x) ∨ G(x))) asserts that for all apples x, x is red or green.

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Answer:

Therefore, 63 times 47 is equals to 2961

Step-by-step explanation:

The measure of ∠t is 135 degrees.

If we know that ∠t and ∠s are supplementary angles, it means that their measures add up to 180 degrees.

Let's assume that the measure of ∠s is x degrees. Since ∠t and ∠s are supplementary, the measure of ∠t is 180 - x degrees.

Given that m∠t is 3 times the measure of ∠s, we can write the equation:

m∠t = 3(m∠s)

180 - x = 3x

Now, we can solve this equation to find the value of x and then determine the measure of ∠t.

180 - x = 3x

180 = 4x

x = 45

Substituting the value of x back into the equation for ∠t:

∠t = 180 - x

∠t = 180 - 45

∠t = 135

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To determine whether the given sets are compact, we need to consider the properties of compactness.

A set is compact if and only if it is closed and bounded.

Let's analyze each set in question:

(c.i) [1, 2] U {3} in (R, d), where d(x, y) = |x − y|:

This set is closed because it contains all its limit points. The set is bounded as well, since all its elements are within the interval [1, 3]. Therefore, [1, 2] U {3} is compact.

(c.ii) Q ∩ [0, 1] in (R, d), where d(x, y) = |x − y|:

This set, Q ∩ [0, 1], where Q represents the set of rational numbers, is not compact. It is closed because its complement in R, the set of irrational numbers, is open. However, it is not bounded as it contains both rational numbers arbitrarily close to 0 and 1, which implies it extends infinitely in both directions. Hence, Q ∩ [0, 1] is not compact.

(c.iii) {}21 (the closure of the set of all monomials) in (C[0, 1], d), equipped with the uniform metric d(f, g) = max_{x\in[0,1]} |f(x) - g(x)|:

The set {}21 represents the closure of the set of all monomials, which is the set of all polynomials with real coefficients. This set is not compact. It is closed because it contains all its limit points. However, it is not bounded as the polynomials can have arbitrarily large coefficients, resulting in unbounded behavior. Therefore, {}21 is not compact.

So we conclude:

[1, 2] U {3} is compact.

Q ∩ [0, 1] is not compact.

{}21 is not compact.

Note: The closure {}21 mentioned in (c.iii) seems to contain a typo, as the notation should typically indicate the closure of a set rather than denoting an actual set.

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Answer:

it lies in Quadrant 1

Step-by-step explanation:

The points are positive so in the first one

Quadrant 1 is located where x and y are both positive

Quadrant 2 is located where x is negative and y is positive.

Quadrant 3 is located where x and y are both negative

Quadrant 4 s located where x is positive and y is negative.

Since the point (9, 12) has a positive x and a positive y,

it must lie in quadrant 1 on the coordinate system.

Answer:

√2=1.414

then :√8 +2√32 +3√128+4√50

√8=√2³ =2√2

2√32=√2^5 = 4*2√2 = 8√2

3√128 = 3√2^6*2=8*3√2 =24√2

4√50 =4√5²*2= 20√2

add results : 2√2+8√2 +24√2+20√2=54√2

x=7-4√3

√x+ 1/√x

√(7-4√3) +1/√(7-4√3) =

(8-4√3)/√(7-4√3)

(8-6.93)/√(7-6.93) = 4 ( after rounded to the nearest whole number)

4 is your answer

Answer:A) 8 miles

Step-by-step explanation:

8 miles

The probability that a randomly selected hotel general manager makes more than $66,000 can be calculated using the standard normal distribution. We need to calculate the z-score for the value $66,000 using the formula z = (x - μ) / σ, where x is the value we want to find the probability for, μ is the mean salary, and σ is the standard deviation. Assuming a normal distribution with a mean salary of $60,000 and a standard deviation of $8,000, we get z = (66,000 - 60,000) / 8,000 = 0.75. Using the standard normal distribution table, the probability of finding a z-score of 0.75 or more is approximately 0.2266.

The z-score is a measure of how many standard deviations a value is from the mean. In this case, a z-score of 0.75 means that the value $66,000 is 0.75 standard deviations above the mean salary of $60,000. The standard normal distribution table provides the probabilities for different values of z-score. To find the probability of a value greater than $66,000, we need to find the area under the standard normal distribution curve to the right of the z-score of 0.75.

The probability that a randomly selected hotel general manager makes more than $66,000 is approximately 0.2266 or 22.66%. This means that out of 100 randomly selected hotel general managers, we would expect 22 to have a salary greater than $66,000.

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Answer:

these are the answers from top to bottom

0

5

10

15

Answer:

0,0

1,5

2,10

3,15

Step-by-step explanation:

Answer:

when the shapes are similar, ratio of their sides are the same

QR/MN = c/6 = PQ/LM = 2/4

c/6 = 2/4

c = 3

Step-by-step explanation:

Answer:

The answer is 11!

Step-by-step explanation:

Divide 22 by 2. :) took the quiz and this was correct

The given sequence is A(n) = 6.3 + (n-1)(5).

To find the 6th term of the sequence, we substitute n = 6 into the formula:

A(6) = 6.3 + (6-1)(5)

A(6) = 6.3 + 25

A(6) = 31.3

Now, to find the 5th term of this sequence, we need to substitute n = 5 into the formula:

A(5) = 6.3 + (5-1)(5)

A(5) = 6.3 + 20

A(5) = 26.3

Therefore, the 5th term of the 6th term of the sequence A(n) = 6.3 + (n-1)(5) is 26.3.

The domain of f is X and the co-domain of f is Y And f(1) = s, f(3) = t, f(5) = u. The range of f is {s, t, u}.

a. The domain of function f is X, which consists of the elements {1, 3, 5}. The co-domain of f is Y, which consists of the elements {s, t, u, v}.

b. Evaluating f(x) for each element in the domain, we have:

f(1) = s

f(3) = t

f(5) = u

c. The range of f represents the set of all possible output values. From the given information, we can see that f(1) = s, f(3) = t, and f(5) = u. Therefore, the range of f is the set {s, t, u}.

In graph theory, a graph consists of a vertex set V and an edge set E. The order of a graph is the number of vertices in the vertex set V. The size of a graph is the number of edges in the edge set E. The degree sequence of a graph represents the degrees of its vertices listed in non-increasing order.

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Answer:

w ≤ 19

Step-by-step explanation:

4w−16≤60

Add 16 to both sides.

4w−16+16≤60+16

4w≤76

Divide both sides by 4.

4w/4 ≤ 76/4

w≤19

Answer:

w<=19

Step-by-step explanation:

4w<=60+16

w<=76/4

Answer:

*insert answer*

Step-by-step explanation:

I dont know it but hey

:D

Answer:

Domain = (-∞,∞) { x|x∈R}

Range = { -4 , ∞} , { y|y≥-4}

Step-by-step explanation:

Answer:

1) AD = 9 in

2) DE = 9.25 in

3) ∠EDC = 36°

4) ∠AEB = 108°

5) 11.5 in

Step-by-step explanation:

1) AD = BC = 9in

2) AC = BD (diagonals are equal)

⇒ BD = 14.25

⇒ BE + DE = 14.25

⇒ 5 + DE = 14.25

DE = 9.25

3) Since AB ║CD,

∠ABE = ∠EDC = 36°

4) ∠ABE = ∠BAE = 36°

Also ∠ABE + ∠BAE + ∠AEB = 180 (traingle ABE)

⇒ 36 + 36 + ∠AEB = 180

∠AEB = 108

5) midsegment = (AB + CD)/2

= (8 + 15)/2

11.5

To find the estimated population growth between 2021 and 2039, we first need to determine how many years have passed since 2000. The population is estimated to grow by 21,000 people between 2021 and 2039.

Since we are looking at the time period between 2021 and 2039, we know that 21 years have passed since 2000. Therefore, we can use the formula for population growth:
P(t) = P(0) + r(t)
Where P(t) is the population at time t, P(0) is the initial population, and r(t) is the rate of growth per year. We can plug in the values we know:
P(t) = 45,000 + 1200t (since the rate of growth is 1200 people per year)
To find the population in 2021, we need to plug in t=21:
P(21) = 45,000 + 1200(21) = 72,600
To find the population in 2039, we need to plug in t=39:
P(39) = 45,000 + 1200(39) = 93,600
Therefore, the estimated population growth between 2021 and 2039 is:
93,600 - 72,600 = 21,000

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Answer:

1 \(\frac{3}{4}\) inches per hour

Step-by-step explanation:

10 \(\frac{1}{6}\) ÷ 6

10.5 ÷ 6 = 1.75

1.75 is the same as 1 \(\frac{3}{4}\)

Answer:

.25 dollars

Step-by-step explanation:

divide everything by 4 to get .25

Beth paid a total of $74.88 for 3 pairs of jeans, all priced equally. Therefore, each pair of jeans cost $24.96.

To find the cost of each pair of jeans, we need to divide the total amount paid by the number of pairs. Beth paid $74.88 for 3 pairs of jeans. Therefore, we divide $74.88 by 3 to determine the cost per pair. The division results in $24.96, which means each pair of jeans costs $24.96.

In this case, since all three pairs of jeans were the same price, we can divide the total amount paid by the number of pairs to find the cost of each pair. Beth paid $74.88 for 3 pairs of jeans. Dividing $74.88 by 3 yields $24.96. Therefore, each pair of jeans costs $24.96. This calculation assumes that there were no additional costs or discounts applied to the purchase.

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Answer:

Step-by-step explanation:

y = 4 * x

you can replace y and x with any values, but it has to be correct. you can say 15 = 4 * 3, but that isn't correct. but you can say 16 = 4 *4

The value of the equation is y = 4x

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

y = 4x   be equation (1)

On simplifying the equation , we get

when x = 1

y = 4 ( 1 )

y = 4

when x = 2

y = 4 ( 2 )

y = 8

when x = 3

y = 4 ( 3 )

y = 12

when x = 4

y = 4 ( 4 )

y = 16

Therefore , the values of y are { 4 , 8 , 12 , 16 }

Hence , the equation is y = 4x

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Answer:

24

Step-by-step explanation:

4*6=24

The length of the rectangle is 26 centimeters and the width of the rectangle is 24 centimeter

From the question, we are to determine the length and width of the rectangle

Let the length be l and the width be w

From the given information,

"The length and width of a rectangle are consecutive even integers"

That is,

l = w + 2

Also, from the given information

"The perimeter of the rectangle is 100 centimeters"

From the formula for perimeter of a rectangle,

P = 2(l + w)

Then,

100 = 2(l + w)

Substitute the first equation into the second equation

100 = 2((w + 2) + w)

100 = 2(w + 2 + w)

100 = 2(2w + 2)

Divide both sides by 2

50 = 2w + 2

2w = 50 - 2

2w = 48

w = 48/2

w = 24 cm

Substitute the value of w into the first equation

l = w + 2

l = 24 + 2

l = 26 cm

Hence, the length is 26 cm and the width is 24 cm

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Using the Counting the faces of two dice,

the atleast 17 number of faces are possible on the combination of two dice.

First, we have to count the favorable cases,

We know both dice have atleast 6 faces.

It gives 6 favorable cases for a sum of 7.

If we can count them if mean even if dice had more than 6 faces, will matter of for sum of 7.

Now, the mean, we need 6× 4/3=8 (favorable cases for the sum of 10)

If we count 3 favorable cases for each having 6 faces.

For more than 9 faces on a dice matter give the denominator (sample space) are the same for both sum of 7 and the sum of 10, and the probability of one is in proportion to the other.

It mean, additional 5 cases must be ( 7,2), (2,7), (8,2), (2,8) ,(9,1)

So , one of the dice has 8 faces and the other has atleast 9 faces.

Now, we must have atleast 17 combined faces of two dice for probability . So, we get if 12 with configration of 8 faces on one dice.

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Answer: A

Step-by-step explanation: I would say A because the angle is greater than 90 degrees

Answer:

We have supplementary angles.

76 + 3x + 2 = 180

3x + 78 = 180

3x = 102

x = 34