HELP PLS!!! WILL MARK THE MOST BRAINLIEST

Answer:

The measure of the third angle of the triangle is 45°.

Step-by-step explanation:

What is a triangle?

A triangle is a polygon with 3 sides.

Given that, the measures of the two angles of a triangle are 50° and 85°.

Let the measure of the third angle be x.

Since the sum of the interior of a triangle is 180°, it follows,

50°+85°+x=180°

135° +x = 180°

x = 180° - 135°

x = 45°

Hence, the measure of the third angle of the triangle is 45°.

The price of the widgets for which it should be sold to make the maximum profit is $25.4   .

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We know that the quadratic equation ax² + bx + c ,

If a < 0; then the maximum value of the quadratic equation will be at x = -b/2a .

Given;

a company is selling a widget;

the selling price of each widget is = x

the profit made by the company = y

the equation of profit is given as y = −3x² + 152x − 1150 ,

here a = -3 , b = 152 and c = -1150

In the given quadratic equation we can see that;

a < 0 , so , the maximum will be at;

x = -b/2a

x = -152/2(-3)

x = 152/6

x = 25.333

x ≈ 25.4

Hence, the price of the widget will be $25.4  

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Answer: 9

Step-by-step explanation: It's 9 because both can be divided by 9, as the largest time without going over. As you can see, 81 divided by 9 is 9, and 72 divided by 9 is 8. 8 and 9 are the closest they can be without going over 81 and 72, so it's 9. I hope this helps!

The GCF of the numbers 81 and 72 is 3², which equals 9.

To find the greatest common factor (GCF) of 81 and 72, we can use several methods.

One common approach is to factorize both numbers and identify the common factors.

The prime factorization of 81 is 3⁴, and the prime factorization of 72 is 2³×3².

To find the GCF, we look for the highest power of common prime factors in both numbers.

The highest power of the common prime factor (3) is 3², since it appears as a factor in both numbers.

Therefore, the GCF of 81 and 72 is 3², which equals 9.

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The mean of these scores is 16.

The mean is a measure of central tendency that indicates the average value of a set of data. It is calculated by adding up all of the individual values in a dataset and dividing that sum by the number of values in the dataset. In mathematical terms, the mean is represented by the symbol "µ" (mu) and is calculated as:

µ = (sum of all observations) / (number of observations)

To find the mean of these scores, you would add up all of the individual scores and divide by the total number of scores.

First, we find the total score of the 5 students who scored 10: 5 students * 10 points/student = 50 points

Then, we find the total score of the 10 students who scored 15: 10 students * 15 points/student = 150 points

Then, we find the total score of the 10 students who scored 20: 10 students * 20 points/student = 200 points

Now we add all the total scores of students: 50+150+200 = 400 points

Finally, to find the mean score, we divide the total score by the number of students: 400 points / 25 students = 16 points/student.

Therefore, the mean of these scores is 16.

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The midsegment linking the cartesian coordinates of two of a triangle's sides is parallel to the fourth aspect of the triangle, and its length is half that of the third side, according to the midsegment theorem.

The assertions that the Greek mathematician Pythagoras discovered the properties of right-angled triangles in the fifth century BC just did not match up, according to many. Some people think following commentary shows it was a joint effort among his disciples, the Pythagoreans.

Equilateral: equal angles and all three sides. Acute isosceles: two identical sides and angles, both of which are only about 90 degrees. Acute scalene has irregular sides and angles, all of which are under 90 degrees. Obtuse isosceles: two identical sides and angles, one of which is more than 90 degrees.

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To find the amount of gold needed for gold plating a brick, total surface area of the brick would be needed to be calculated, assuming the brick is cuboid or cube shaped.

While dealing with cubes and cuboids, we should know how to find the surface areas and volumes of the two objects. When we either fill these or talk about all the three dimensions of an object, we talk about the volume of the said object. And, when we paint or talk about just the exterior or interior walls of an object, we talk about the surface area of the said object.

When all the six faces of a cube or a cuboid are used, we calculate surface area for all the faces and this is called the total surface area.

Let us look at the different formulas to calculate volume and total surface area of a cube and a cuboid,

Total surface area of a cube (side [tex]a[/tex]) =  6 × (area of each face)  

                                                          = 6 × [tex]a^{2}[/tex]  

Volume of a cube (side [tex]a[/tex]) = [tex]a^{3}[/tex]

Total surface area of a cuboid (length [tex]l[/tex], breadth [tex]b[/tex], height [tex]h[/tex]) = [tex]2 ( lb + lh + bh)\\[/tex]

Volume of a cuboid (length [tex]l[/tex], breadth [tex]b[/tex], height [tex]h[/tex]) = [tex]lbh[/tex]

For plating the brick with anything, gold for instance, total surface area of the brick would be calculated to determine the amount of gold needed as all the walls or faces of the brick would be plated but not the interior volume.

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The turning point of the function is x = 1 and it is a local minima.

The curve of a function has peaks and troughs called maxima and minima. A function may have any number of peaks and minima. Calculus allows us to determine any function's maximum and lowest values without ever consulting the function's graph. Maxima will be the curve's highest point within the specified range, while minima will be its lowest.

Extrema is the result of maxima and minima combined. The graph in the graphic below shows several peaks and falls. We obtain the function's maximum and lowest values at x = a and 0 respectively, and at x = b and c respectively. The valleys are the minima and all the peaks are the maximum.

In a function, maxima and minima can be of two different types:

Local Maxima and Minima

Global or Absolute Maxima and Minima

The function is

y = [tex](x-1)^{2}[/tex] for -3 ≤ x ≤ 3

differentiating both side with respect to x we get

[tex]\frac{dy}{dx} = 2(x-1)[/tex]

for maxima and minima [tex]\frac{dy}{dx} = 0[/tex]

or, 2(x-1) = 0

or x = 1

Now, for x > 1 [tex]\frac{dy}{dx} > 0[/tex]

So, the function's turning point is a minima.

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Answer: Parallel

Step-by-step explanation:

To solve this question, we need to find the slopes of both lines q and r.

First, let's find the slope of line q.

Δx/Δy=-7/-6 = 7/6

Next, the slope of line r.

Δx/Δy=-7/-6 = 7/6

Both lines have the same slope.

Therefore, they are parallel.

Answer:

no

Step-by-step explanation:

a triangle can never only have acute sides. The other sides will either be: obtuse or a right angle.

Longitudinal waves are waves where the displacement of the medium is in the same direction as the direction of the travelling wave.

The distance between the centres of two consecutive regions of compression or the rarefaction is defined by wavelength, λ. When the compression and rarefaction regions of two waves coincide with each other, it is known as constructive interference and if the regions of compression and rarefaction do not coincide, it is known as destructive interference.

Compression

In a longitudinal wave, compression is a region in which the particles of the wave are closest to each other.

Rarefaction

Rarefaction in a longitudinal wave takes place when the particles are farthest apart from each other.

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So, (3/10) ∫(0 to t) sin(2πt/5) dt would find the volume of inhaled air in the lungs at time t.

The function f(t) = (3/10)(sin(2πt/5)) is often used to model the rate of air flow into the lungs because it is cyclic, with a period of 5 seconds, and has a maximum value of 0.3 L/s. This function represents the rate of air flow into the lungs at any given time t.

To find the volume of inhaled air in the lungs at time t, we can integrate the function f(t) with respect to time. The volume of air inhaled at time t is the definite integral of f(t) from the start of inhalation (t = 0) to time t.

∫(0 to t) f(t) dt = (3/10) ∫(0 to t) sin(2πt/5) dt

The definite integral can be solved with proper limits, but the result is not in a closed form that can be expressed in terms of elementary functions.

In order to get the volume of inhaled air in the lungs at time t, we need to know the specific values of t and solve the definite integral with proper limits.

It's worth noting that this model is a simplified one and many other factors like breathing rate, lung capacity, and lung compliance could affect the actual volume of inhaled air in the lungs.

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Answer:

x = 19

Step-by-step explanation:

5x - 37 = 3x + 1      (move over the 3x by subtracting)

2x - 37 = 1      (move over the 37 by adding)

2x = 38      (divide both sides by 2)

x = 19

x=19

Step-by-step explanation:

(5x-37) = (3x+1)

5x - 3x = 1 + 37

5x - 3x = 38

2x = 38

x = 19

[tex]1\frac{3}{4}[/tex] hours Jada took to put the puzzle together.

A fraction represents a part of a whole.

Given that Jada's aunt took 3/4  hour to put a puzzle together.

Jada took [tex]2\frac{1}{3}[/tex]  times as long as her aunt to put the puzzle together.

Convert the mixed fraction [tex]2\frac{1}{3}[/tex]  to improper fraction

[tex]2\frac{1}{3}[/tex] =7/3

As there is given Jada took [tex]2\frac{1}{3}[/tex]  times as long as her aunt to put the puzzle together we have to multiply 7/3 with 3/4

7/3×3/4

7/4

This can be written as mixed fraction

[tex]1\frac{3}{4}[/tex]

Hence, [tex]1\frac{3}{4}[/tex] hours Jada took to put the puzzle together.

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Answer:

Q = 216 - 0.5P

Step-by-step explanation:

One approach to modeling the demand as a function of the cost is to use a linear demand equation of the form:

Q = a - bP

where Q is the quantity demanded, P is the price, and a and b are constants. To find these constants, we can use the two points given:

When P = $180, Q = 8 portraits, so 8 = a - b * 180

When P = $100, Q = 24 portraits, so 24 = a - b * 100

Solving the system of equations gives us:

a = 216

b = 0.5

So, the demand equation is:

Q = 216 - 0.5P

This represents the demand for portraits as a function of the price, where the demand decreases linearly as the price increases.

The actual perimeter is 2934. The perimeter of a rectangle is calculated as P = length + breadth + length + breadth. Alternatively, P = 2(length + breadth).

Perimeter=2(l + b)

=2[6.3cm +10cm) = 2x16.3 cm 32.6cm

Scale 1 cm = Actual 90m.

32.6cm 32.6x90m

= 2934 m

We sum the lengths of all four sides to determine the perimeter of a rectangle. Because opposing sides of a rectangle are always equal, we must obtain the length and breadth measurements to calculate the perimeter of a rectangle. The perimeter of a rectangle is equal to double the sum of its length and breadth.

To calculate the perimeter, or distance around the rectangle, sum all four side lengths. This may be done quickly by adding the length and breadth and then multiplying the total by two because each side length has two lengths. The perimeter formula is perimeter = (length + width)2.

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Receipt of May is 835

Net cash flow of April is 210

Cumulative balance of March is 240

Explanation

Net cash flow = Receipt - Expense

Receipts amount = Expenses+Net cash flow

Cumulative balance amount =Cumulative amount for April-Net cash flow for April

The probability of selecting a three-digit number with the property that one digit is equal to the product of the other two is 1/90.

1/90

The probability of selecting a three-digit number with the property that one digit is equal to the product of the other two is 1/90. This is because there are only 9 possible digits (1, 2, 3, 4, 5, 6, 7, 8, 9) to choose from, and each of these digits can be multiplied by itself twice to give 9 possible combinations. Therefore, there are 9 three-digit numbers that satisfy the given condition, and these 9 numbers can be chosen from a total of 900 three-digit numbers (10 x 10 x 10 = 1000, minus the 100 numbers beginning with 0). Thus, the probability of selecting a three-digit number with the property that one digit is equal to the product of the other two is 9/900, which can be simplified to 1/90.

The probability of selecting a three-digit number with the property that one digit is equal to the product of the other two is 1/90.

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For the figure shown in the image having TV as the midsegment, the length of TV is 40

When the comparable triangles' angles are congruent and their respective sides are proportionate, this is referred to as similar triangles in geometry.

In light of this, if the triangle's corresponding angles are congruent, then the side should be proportionate.

For the given figure, the proportionate sides are

UV and TV, UW and WX

Calculating for s

UV / TV = UW / WX

1 / (-2s + 42) = 2 / (3s + 77)

cross multiplying

3s + 77= 2(-2s + 42)

3s + 77= -4s + 84

collecting like terms

3s + 4s = 84 - 77

7s = 7

s = 1

solving for TV

= -2s + 42

= -2 * 1 + 42

= 40

the value of TV is 40

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Angle C is the biggest.

The longest side in a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle.

Answer:

Step-by-step explanation:

true

It is not possible to construct a triangle with 6cm, 9cm, and 17cm.

The sides measure 6 cm, 9 cm, and 17 cm in length.

Only when the third side is greater than the sum of any two sides can a triangle be drawn. This the condition.

Let's verify the rule now.

6 + 9 > 17        Not true

6 + 17 > 9        True

9 + 17 > 6        True

As 6 + 9 > 17 does not satisfy the condition.

Hence, it is not possible to construct a triangle having 6cm, 9cm, and 17cm in length.

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In this scenario, if a computer was bought for $2350 and is being depreciated over 5 years, the annual depreciation is $470, and its value 3 years later would be $1410.

The straight-line method of depreciation is a method of calculating the decline in value of an asset over time. Using this method, an asset's value is spread evenly over its useful life.

In this scenario, if the computer was bought for $2350 and is being depreciated over 5 years, the annual depreciation is ($2350 / 5) = $470.

Three years later, the computer's value would be $2350 - ($470 x 3) = $1410. This is because the value of the computer is decreasing by $470 per year, and after three years, the total amount of depreciation would be $470 x 3 = $1410.

It's important to note that the straight-line method of depreciation is a simple method and it does not reflect the real-world scenario in which assets may have a higher value of depreciation in the initial years and less in the later years. But it's easy to calculate and use.

In conclusion, if an asset is depreciated using the straight-line method, its value decreases evenly over its useful life. It's important for businesses to understand the various methods of depreciation and choose the one that best suits their needs.

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Lebron would make 41 foul shots.

The formula used to calculate the number of made foul shots is Number of Made Foul Shots = Foul Shooting Average * Number of Shots Attempted.

Therefore, the number of made foul shots for Lebron is 55% * 75 = 41.25. Since this is a decimal number, we can round it down to 41 made foul shots.

In calculation way, Lebron would make 41 foul shots. This can be calculated by multiplying his foul shooting average 55% with the number of shots attempted, which is 75. 55% can also be written as 0.55, so the equation can be written as 0.55 * 75 = 41.25 which rounds down to 41.

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Answer:

c. 2

Step-by-step explanation:

The valueof v

-9v - 9 = -27

= -9v = -27 + 9

= -9v = -18

= -9v/-9 = -18/-9

v = 2.

Note: negative will cancel negative.

The value of the stock after the increase of 1/4(fraction) using the addition expression is equal to $11.75. 

In Mathematics, a fraction is defined as the portion/part of the whole thing. A fraction consists of two parts, numerator and denominator. The number on the top is known as the numerator, and the number on the bottom is known as the denominator.

Given,

         The initial value of stock = $11.50

         Increase in stock ( in fraction) = 1/4

We know that earlier in the stock market the changes in values were indicated by fractions which represent portions of $1

Therefore,

               Increase in value of stock = 1/4 * $1

                                                         =  $0.25

Hence, 

          Value of stock after increase = $11.50 + $0.25

                                                        = $11.75

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Step-by-step explanation:

6x-2y = 26 ---(1)

x+y = 3 -------(2)

so, (y = 3-x)

put in equation 1st.,

6x-2(3-x) = 26

6x-6+2x = 26

8x = 32

(x = 4)

so, put x value in equation 2nd,

4+y = 3

(y = -1 ) Answer

Answer:

x = 4

y = -1

Step-by-step explanation:

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Given:

6x-2y=26

-y+3=x  

Flip the equation around:

x = 3 - y

6(3-y) - 2y = 26  << Distribute property

18 -6y -2y = 26  << Add liked term

18 -8y = 26

-8y/-8 = 8/-8   << Divide both sides by -8

y = -1

Now, substitute y into the equation also known as -1.

6x - 2(-1) = 26

6x + 2 = 26  << Subtract 2 from 2 and 26 from 2

6x = 24

6x/6 = 24/6  << Divide both sides by 6.

x = 4

Hence, x = 4 and y = -1.

RevyBreeze

Para calcular el 18% menos de un número, se puede utilizar la fórmula: número original x (1 - porcentaje en decimal). En este caso, para calcular el 18% menos de 41, se puede utilizar la fórmula: 41 x (1 - 0.18) = 41 x 0.82 = 33.62. Entonces, el 18% menos de 41 es 33.62.

Espero que esto ayude :)

Answer:

El número es:

50

Step-by-step explanation:

Porcentaje significa "por cada cien"

18% = 18/100 = 0.18

El número buscado corresponde al 100%

Si es el 18% menos quiere decir que corresponde a:

100 - 18 = 82%

Entonces:

Por regla de tres:

41 es a 82%

A es a 100%

A = 41 * 100 / 82

A = 4100 / 82

A = 50

Comoprobación:

50 - (50*0.18) = 50 - 9 = 41

The empirical probability that there are more than 5 left-handed students  in a class of 30 is 0.06.

Empirical probability is a sort of experimental probability that is based on historical data. Empirical probability is, then, an illustration of  the likelihood of an occurrence occurring based on prior data.

The formula of the empirical probability is:

Experimental probability  = number of times an event occurs / total number of outcomes.

In the problem, total number of classes = 50

From the graph, we can read that:

- number of classes with 6 left-handed students = 2

- number of classes with 7 left-handed students = 1

Hence, the empirical probability that there are more 5 left-handed students in a class of 30 is:

Empirical probability = 3/50 = 0.06

Your question is incomplete. Most likely it was:

Casey read a report that said the probability that a randomly selected America is left handed is 14%. she was curious how many left handed students to expect in a class of 30 seconds. she simulated 50 classes of 30 students where each student had a 0.14 probability of being left handed. Casey counted how many left handed students were in each simulated class. here are her results: use her results to estimate the probability that there are more than 5 left handed students in a class of 30 students. (The graph is attached)

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