please help me fast please

the fraction of the class that are boys is 4/9. And the fraction of the class that are girls is 5/9.

What is ratio?

A ratio is a comparison of two or more quantities that are related in some way. It expresses the relationship between these quantities in terms of the number of times one quantity contains another. Ratios are usually expressed as a fraction, where the numerator represents the first quantity and the denominator represents the second quantity. For example, the ratio of boys to girls in a class of 40 students may be expressed as 2:3 or 2/3, meaning there are 2 boys for every 3 girls. Ratios can also be expressed in other forms, such as percentages or decimals. Ratios are commonly used in mathematics, science, engineering, and everyday life to compare quantities and make predictions or decisions.

A fraction is a number that represents a part of a whole or a ratio of two quantities. It consists of two numbers, a numerator and a denominator, separated by a line. The numerator represents the number of parts being considered, while the denominator represents the total number of parts in the whole or in the comparison. Fractions are used in many areas, such as mathematics, science, engineering, cooking, and everyday life. They can be added, subtracted, multiplied, and divided, and can be converted to decimals or percentages.

a) The total ratio of boys to girls in the class is 4+5 = 9. Therefore, the fraction of the class that are boys is 4/9.

b) The question is unclear as it seems to be asking for the same answer as in part (a). If you meant to ask for the fraction of the class that are girls, you can use the same approach: the fraction of the class that are girls is 5/9.

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To find the surface area of a triangular prism with side lengths 3, 4, 4, and 5, we can use the formula:

Surface Area = 2(Area of the base) + (Perimeter of the base) x (Height of the prism)

First, let's find the area of the base. Since the base is a triangle, we can use the formula for the area of a triangle:

Area of base = (1/2) x base x height

The base of the triangle is the side with length 5, and the height can be found using the Pythagorean theorem:

height^2 = 4^2 - (3/2)^2

height^2 = 16 - 2.25

height^2 = 13.75

height = sqrt(13.75)

So the area of the base is:

Area of base = (1/2) x 5 x sqrt(13.75)

Area of base = 10.825

Next, let's find the perimeter of the base. Since the base is a triangle with side lengths 3, 4, and 5, the perimeter is:

Perimeter of base = 3 + 4 + 5

Perimeter of base = 12

Finally, let's find the height of the prism. We can use the Pythagorean theorem again:

height^2 = 4^2 - (3/2)^2

height^2 = 16 - 2.25

height^2 = 13.75

height = sqrt(13.75)

So the height of the prism is also sqrt(13.75).

Now we can plug these values into the formula for the surface area:

Surface Area = 2(Area of the base) + (Perimeter of the base) x (Height of the prism)

Surface Area = 2(10.825) + 12 x sqrt(13.75)

Surface Area = 21.65 + 41.4

Surface Area = 63.05

Therefore, the surface area of the triangular prism with side lengths 3, 4, 4, and 5 is 63.05 square units.

Answer:

To find your gross pay, we can use the following formula:

Gross Pay = Take Home Pay / (1 - Federal Withholding Tax Rate)

Plugging in the given values, we get:

Gross Pay = 3,210 / (1 - 0.16)

Simplifying the denominator, we get:

Gross Pay = 3,210 / 0.84

Calculating the division, we get:

Gross Pay = 3,821.43

Therefore, your gross pay was $3,821.43.

Answer:

51

Step-by-step explanation:

3x+4y^2

3(5)+4(3)^2

3(5)+4(9)

15+36

51

Answer: 51

Step-by-step explanation:

(x + 5) is nοt necessarily a factοr οf the pοlynοmial, (x-4) is a factοr οf the pοlynοmial are cοrrect statement.

Functiοn can be define in which it relates an input tο οutput.

If the graph οf a pοlynοmial functiοn P(x) has x-intercepts at x = -4, x = 0, and x = 5, then we knοw that the factοrs οf P(x) are (x + 4), x, and (x - 5). This is because a pοlynοmial has x-intercepts where the value οf P(x) is equal tο zerο, and this οccurs when each factοr is equal tο zerο.

Therefοre, we can cοnclude that (x + 4) and (x - 5) are factοrs οf the pοlynοmial P(x), but x is nοt necessarily a factοr. This is because x is a linear factοr with a zerο intercept, but it cοuld be cancelled οut by anοther factοr in the pοlynοmial.

Thus, the cοrrect statement is:

(x + 5) is nοt necessarily a factοr οf the pοlynοmial.

(x-4) is a factοr οf the pοlynοmial.

The degree οf the pοlynοmial is 3 οr greater since the pοlynοmial has three x-intercepts. Hοwever, we cannοt determine the exact degree οf the pοlynοmial withοut additiοnal infοrmatiοn.

Therefοre, (x + 5) is nοt necessarily a factοr οf the pοlynοmial, (x-4) is a factοr οf the pοlynοmial are cοrrect statement.

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Total volume of shape is =144cu.cm

By knowing the length of the cube's edges, we can quickly determine its volume (V). Assume that "a" is the cube's edge length. The product of length, height, and breadth will then be the V. The cube's volume formula is as follows:

Cube Volume = Length× Width× Height

Volume equals= a× a× a =a³

where "a" denotes the cube's side or edges' length.

Length of each cube = 2cm

Volume of each cube=a³

=2³

=8cm³

Total number of cubes=18

Total volume of shape=18×8

=144 cu.cm

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Answer:

What Mathematics

Step-by-step explanation:

Answer:The measure of Ф = 75.7° :)

Step-by-step explanation:the measure of Ф = 75.7°,We will use the rule sin to find the measure of Ф

At first we will find the angle opposite to the side of length 31

∵ 180° - 73° = 107°

hope this helps:)(:

Answer:

We have the equation:

√2 - √36 - 2x = 6

Simplifying the radicals we get:

√2 - 6 - 2x = 6

Adding 6 to both sides we get:

√2 - 2x = 12

Subtracting √2 from both sides we get:

-2x = 12 - √2

Dividing by -2 we get:

x = (6 - (1/√2))

Therefore, the real solution is:

x = (6 - (1/√2))

To check for extraneous solutions, we need to substitute this value of x back into the original equation and check if it satisfies the equation.

√2 - √36 - 2(6 - (1/√2)) = 6

Simplifying this we get:

-6 = 6

This is not true, so the solution x = (6 - (1/√2)) is extraneous.

Therefore, there is no real solution to the equation.

This function's definition is given by the formula [tex]c = 50t + 200[/tex].

Consider how many individuals and gadgets will be utilizing the network at once as well as how it will be utilized before choosing the "optimal" speed for your home. As a general rule, anything that can connect many devices simultaneously and is above 200 Mbps is regarded as "fast" internet.

Speed, which is a scalar number, is the "speed at which an item is moving." The pace at which an item travels a distance may be referred of as its speed. A fast-moving item travels at a great velocity and completes a significant distance in a brief period of time.

[tex]y = mx + b[/tex]

Where [tex]y,x[/tex] are variables, m is the rate of change  and [tex]b[/tex] is the y intercept.

Let [tex]c[/tex] represent the distance June has traveled after time [tex]t[/tex].

Since the cities are [tex]200[/tex]miles apart, hence [tex]b = 200[/tex]. Also the speed is [tex]50[/tex]mph, hence [tex]m = 50[/tex]:

[tex]c = 50t + 200[/tex]

The formula that describes this function is [tex]c = 50t + 200[/tex]

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Answer:

To calculate the speed of the athlete in meters per second (m/s), we can use the formula:

Speed = Distance / Time

Here, the distance is 200 meters and the time is 25 seconds. Substituting these values into the formula, we get:

Speed = 200 meters / 25 seconds

Simplifying, we get:

Speed = 8 meters/second

Therefore, the athlete ran at a speed of 8 meters per second.

Answer:

Anna should receive $0.17 (17 cents) in change

Step-by-step explanation:

Anna has $1, she spends $.83 on candy

To find how much change she will get, we must subtract

1 - 0.83

$0.17

Answer:$0.17

Step-by-step explanation:

A dollar is 100 cents just subtract 83 from 100 to get 17.

Answer:

+4

Step-by-step explanation:

F(x,y)   = 3x+y      and y <= -2x+ 4     sub in for 'y'

          = 3x  + (-2x+4)

          = x + 4

If you look at the graph for   y <= - 2x+4   ( see below)

    you will see that the domain (x values ) can only go from 0 to 4 and the max value is +4     ( rememeber too that y is restricted to >= 0  as is x )

Answer:

We can use the formula for compound interest to find the future value of Lyla's investment:

A = P(1 + r/n)^(nt)

where A is the future value, P is the principal (initial investment), r is the annual interest rate as a decimal, n is the number of times interest is compounded per year, and t is the time in years.

Substituting the given values, we get:

A = $2,500(1 + 0.05/2)^(2*15)

Simplifying, we get:

A = $2,500(1.025)^30

Using a calculator, we get:

A ≈ $5,016.35

Therefore, Lyla's investment will be worth approximately $5,016.35 in 15 years if interest is compounded semiannually. Rounded to the nearest dollar, the answer is $5,016.

So, when 14 pounds of blue goo as well as 16 pounds of red goo are present, there are 2688 pounds of green goo.

Let the green goo be G.

Let the blue goo be B.

Let the red goo be R.

G ∝ B*R

G = k*B*R (k is the constant of proportionality)

Put the values:

G = 288 = k*B*R

288 = k*8*3

288 = k*24,  

k = 288/24 = 12

Now, for the second case:

G = k*B*R

Put the value of k.

G = 12*14*16 = 2688.

So, when 14 pounds of blue goo as well as 16 pounds of red goo are present, there are 2688 pounds of green goo.

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Answer:

Step-by-step explanation:

ut it A

We may conclude after answering the presented question that Therefore, the coordinates of point C are (-6, 0).

In mathematics, a coordinate is a number or combination of numbers that represents the location of a point or object in space. Coordinates are frequently used to define a point or object's position in a certain coordinate system, such as the Cartesian or polar coordinate systems. In the Cartesian coordinate system, a point is found by its distance from the origin along the x-axis and its distance from the origin along the y-axis. These distances are represented by two integers, the x-coordinate and the y-coordinate. The point's location in the plane is specified by the two coordinates.

Using the distance formula, we can find the distances AC and CB:

[tex]AC = \sqrt((x - (-8))^2 + (y - 4)^2)\\CB = \sqrt((10 - x)^2 + (-2 - y)^2)\\[/tex]

Since AC:CB = 2:1, we have:

[tex]AC/CB = 2/1\sqrt((x - (-8))^2 + (y - 4)^2) / \sqrt((10 - x)^2 + (-2 - y)^2) = 2/1\\(x - (-8))^2 + (y - 4)^2 / ((10 - x)^2 + (-2 - y)^2) = 4\\(x - (-8))^2 + (y - 4)^2 = 4((10 - x)^2 + (-2 - y)^2)\\5x^2 + 5y^2 - 116x + 20y + 340 = 0\\(x - (-8))^2 + (y - 4)^2 = r^2\\(x - (-8))^2 + (y - 4)^2 / ((10 - x)^2 + (-2 - y)^2) = 4\\[/tex]

where r is the radius of the circle.

Solving this system of equations, we get:

x = -6

y = 0

Therefore, the coordinates of point C are (-6, 0).

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Answer:

Taking radius of a semicircle to be 3cm calculate the area using (1/2πr²) and add the area of rectangle calculated by use of formula L×w

Therefore Area=π(1/2×3²)+(12×6)

=76.5π

Answer:

82.27

Step-by-step explanation:

Please see the diagram attached to this solution for measurements

Area of the figure = Area of semi circle + area of rectangle

As per the figure

[tex]l_{rectangle} = 9\\w_{rectangle} = 6\\r_{semi-circle} = 3[/tex]

therefore,

[tex]Area = \dfrac{\pi r^{2}}{2} + l\cdot w[/tex]

substitute values of l, w and r, we get

[tex]Area = 82.27 cm^2[/tex]

Hopefully this answer helped you!!!

Therefore, if we are using 27 cups of sugar, we also need 18 cups of wheat.

An ordered combination of integers a and b, rendered as a / b, is a ratio if b is not equal to 0. A percentage is an expression that sets two numbers at the same value. For instance, you could put the percentage as follows: 1: 3 if it's 1 male and 3 girls. (for every one boy there are 3 girls)

If 8 cups of flour are mixed with 12 cups of sugar, then the ratio of flour to sugar is:

8 : 12

Simplifying this ratio by dividing both numbers by 4, we get:

2 : 3

This means that for every 2 cups of flour, we need 3 cups of sugar.

If we are using 27 cups of sugar, we can set up a proportion to find out how much flour we need:

2/3 = x/27

Multiplying both sides by 27:

2 × 27 / 3 = x

Simplifying:

x = 18

Therefore, we need 18 cups of flour if we are using 27 cups of sugar.

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Answer:

Step-by-step explanation:

The theoretical probability of an event is the number of favorable outcomes over the total number of possible outcomes. In this case, the total number of possible outcomes is 2, since each camper can either swim or hike. The number of favorable outcomes for swimming is also 2 (heads on a coin flip). Therefore, the theoretical probability of swimming is 2/2 or 1/2.

The experimental probability of an event is the number of times the event occurred in the experiment divided by the total number of trials. In this case, there were 12 students who chose to swim out of 40 total students. Therefore, the experimental probability of swimming is 12/40 or 3/10.

Comparing the two probabilities, we see that the theoretical probability of swimming is 1/2 while the experimental probability of swimming is 3/10. Therefore, the statement "The theoretical probability of swimming, P(swimming), is one half, but the experimental probability is 12 over 40" is true.

The theoretical probability of swimming, P(swimming), is one half, but the experimental probability is 12 over 40.

The theoretical probability of swimming, P(swimming), is one half, but the experimental probability is 12 over 40. (option b)

The theoretical probability of an event is calculated based on the assumption of equal likelihood for all possible outcomes. In this case, since each student flips a fair coin, there are two equally likely outcomes: heads (swimming) and tails (hiking). Therefore, the theoretical probability of swimming (P(swimming)) is 1/2, and the theoretical probability of hiking is also 1/2.

However, the experimental probability is determined by the actual outcomes observed in the experiment. According to the data provided, out of the 40 students, 12 students got heads (swimming) and 28 students got tails (hiking). To find the experimental probability of swimming, we divide the number of students who swam by the total number of students:

12/40 = 0.3.

The theoretical probability of swimming, P(swimming), is one half (0.5), but the experimental probability is 28 over 40 (0.7).

The theoretical probability of swimming, P(swimming), is one half (0.5), but the experimental probability is 12 over 40 (0.3).

The theoretical probability of swimming, P(swimming), is 12 over 28 (~0.4286), but the experimental probability is one half (0.5).

The theoretical probability of swimming, P(swimming), is 28 over 40 (0.7), but the experimental probability is one half (0.5).

Out of these options, the correct one is the theoretical probability of swimming, P(swimming), is one half, but the experimental probability is 12 over 40. (option b).

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Answer:

9 is answer you fool......

answer: Click THANKS if you like my answer. have a good day sir/maam #keep safe

First, we need to find the maximum height that the rocket will reach. To do that, we need to find the vertex of the parabolic function h(t) = -16t^2 + 144t + 9. We can use the formula for the vertex of a parabola, which is given by the formula t = -b/2a, where a = -16 and b = 144.

t = -b/2a = -144/(2*(-16)) = 4.5

So the rocket will reach its maximum height after 4.5 seconds.

To find the maximum height, we need to substitute t = 4.5 into the function h(t):

h(4.5) = -16(4.5)^2 + 144(4.5) + 9 = 324

So the maximum height that the rocket will reach is 324 feet.

Therefore, the rocket will reach its maximum height of 324 feet after 4.5 seconds.

Step-by-step explanation:

hope its help<:

29 + 14 = 44 by decomposing numbers to add and make a new 10.

Decomposition of numbers involves breaking a number down into its constituent parts or smaller numbers that add up to the original number. This can be done in different ways depending on the purpose and context of the problem.

For example, one common way of decomposing a number is by place value. In this case, the number is broken down into its digits, which represent different powers of ten. For instance, the number 562 can be decomposed into 500 + 60 + 2.

Another way of decomposing numbers is by factoring. In this case, the number is expressed as a product of its factors. For example, the number 12 can be decomposed as 2 x 2 x 3.

Decomposing numbers is a useful skill in many areas of mathematics, including arithmetic, algebra, and geometry. It is often used to simplify problems, make computations easier, and facilitate further analysis.

To decompose 29 to make a new 10, we can break it into 9 and 20. Then, to decompose 14 to make a new 10, we can break it into 6 and 8.

So, we have:

29 + 14 = (9 + 20) + (6 + 8)

Now, we can regroup the numbers to make a new 10:

= (9 + 1) + (20 + 6) + 8

= 10 + 26 + 8

= 44

Therefore, 29 + 14 = 44 by decomposing numbers to add and make a new 10.

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The equation of the line is slope intercept form is y = 3x + 45.

What is a graph?

The set of ordered pairings (x, y) where f(x) = y makes up the graph of a function.

These pairs are Cartesian coordinates of points in two-dimensional space and so constitute a subset of this plane in the general case when f(x) are real values.

Given, Danny is opening a savings account with an initial deposit of $45 and he saves $3 per day.

Let y be the total amount he saves and x is the no. of days.

As he starts with $45 deposit it'll be added as a constant.

∴ The equation of the required line is y = 3x + 45.

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Answer:

Try using the Symbolab calculator.

Step-by-step explanation:

Thats what I usually use and it works

As a result, the rectangular prism has a volume of 1 cubic centimeter.

The volume of an object is the area enclosed inside its three-dimensional boundaries. It is referred to as an object's capability on occasion.

We must multiply the rectangular prism's length, width, and height to determine its volume. Although we don't directly know these values, we can use the regions of the faces to locate them.

Let's use the letters l, w, and h to denote the prism's length, breadth, and height, respectively. The area of a top and bottom sides is thus determined to be lw = 10 cm², the front and rear faces are lh = 15 cm², and the left and right sides are wh = 6 cm².

These equations can be used to solve for every variable using the following descriptions of the other variables:

l = 10/w

h = 15/l

w = 6/h

When we add these expressions to the volume formula, we obtain:

V = lwh = (10/w)(6/h)(15/l) = 900/whl = 900/(6×10×15) = 1 cm³

As a result, the rectangular prism has a volume of 1 cubic centimeter.

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Answer:

17.6

Step-by-step explanation:

2.7÷6= 0.45

0.45×8= 3.6

17+3.6 - 3=17.6

I'm sorry, but your question is not clear. Did you mean "What is the angle measurement of a unit circle when radius equals 1?" If so, the answer is that the angle measurement is 360 degrees or 2π radians.

Answer:

1039.23 square inches

Step-by-step explanation:

                      a = 20 inches

    [tex]\sf \boxed{\text{\bf Area of regular hexagon = $\dfrac{3\sqrt{3}}{2}a^2$}}[/tex]

                                                   [tex]= \dfrac{3\sqrt{3}}{2}*20*20\\\\= 3\sqrt{3}*200\\\\= 1039.23 \ inches^2[/tex]

Answer:

c

Step-by-step explanation:

because I did it in my book ‍️

Answer:

15 centimeters

Step-by-step explanation:

radius is half of the circles diameter