95-a(b+c) when a= 9, b = 3 and c=7.4 I don’t get how to solve this please put an explanation

When y = -x² + 15x - 56 then coordinates are is (c) (-7, 0); (8, 0).

Quadratic functions are a type of polynomial function of degree 2, which can be expressed in form f(x) = ax² + bx + c, where a, b, and c are constants, and x is the variable.

The graph of the given quadratic equation y = -x² + 15x - 56 can be plotted using a graphing calculator or any graphing tool. The x-intercepts are the points on the x-axis where the graph intersects the x-axis, i.e., the points where y = 0. By plotting the graph, we can determine the x-intercepts to be (-7, 0) and (8, 0), which correspond to option (c) (-7, 0); (8, 0).

Option (a) and (b) have incorrect x-coordinates for the x-intercepts, and option (d) has both positive x-coordinates for the x-intercepts, which is not correct based on the graph of the given quadratic equation.

Hence, option (c) is the correct answer.

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Answer:

90 games

Step-by-step explanation:

Of the 120 games the football team played, they won 75% of them.

Remember that in mathematics, "of" almost always means to multiply. Here, that means we must multiply 75% by 120:

75% * 120

Remember also that % just means divided by 100, so 75% = 75 / 100. So:

75% * 120 = (75/100) * 120 = 9000/100 = 90 games

Answer:

Step-by-step explanation:

2.5

Answer:

G. y=2x-5

Step-by-step explanation:

First, find the slope from 2x-y=-3

-y=-2x-3

y=2x+3, which means that the slope is 2

Since it is parallel, the given equation and the line we are finding has the same slope.

let y=mx+b, where m=2, y=5, x=5

5=2(5)+b

5=10+b

-5=b

Thus, y=2x-5

Answer:

F Y=1x+5 G Y=2x-5 H Y =x-3 J Y=2x+5

Given:

Data set = \(\{x, 2x, 3x, 4x\}\)

To find:

The absolute mean deviation for the given set.

Solution:

We have,

Data set = \(\{x, 2x, 3x, 4x\}\)

Mean of the data set is

\(Mean=\dfrac{\sum x_i}{n}\)

\(Mean=\dfrac{x+2x+3x+4x}{4}\)

\(Mean=\dfrac{10x}{4}\)

\(Mean=2.5x\)

Now,

The formula for mean absolute deviation (MAD) is

\(MAD=\dfrac{\sum |x_i-\overline x|}{n}\)

\(MAD=\dfrac{|x-2.5x|+|2x-2.5x|+|3x-2.5x|+|4x-2.5x|}{4}\)

\(MAD=\dfrac{|-1.5x|+|-0.5x|+|0.5x|+|1.5x|}{4}\)

\(MAD=\dfrac{1.5x+0.5x+0.5x+1.5x}{4}\)

\(MAD=\dfrac{4x}{4}\)

\(MAD=x\)

Therefore, the mean absolute deviation for the given set of data is x.

Answer:

Step-by-step explanation:

Answer:

lnx-24ln+lnx+100ln=3ln5

2lnx+76ln=2ln5

Step-by-step explanation:

Answer:

the answer is the 4th one

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

We can cross B and D out because tho it has a circle on 36, the passage said greater than or equal to meaning it will be colored in.

We can then cross C out because it said less than on 48 which mean it will not be colored in on the circle, 48

I think I found the worksheet for you

https://www.lcps.org/cms/lib/VA01000195/Centricity/Domain/2053/Answer%20Key%20%20MORE%20Review%20Sheets%20for%20Solving%20and%20Graphing%20Inequalities.pdf

Just copy and paste that to ur search bar

Answer:

A = (1/4)√(4 + 11 + 14)√(-4 + 11 + 14)√(4 - 11 + 14)√(4 + 11 - 14)

A = (1/4)√29√21√7

= about 16.32 mm²

Answer:

  16.27 mm²  (see comment)

Step-by-step explanation:

You want the area of a triangle with side lengths 11 mm and 14 mm, and the angle between them 12.2°.

The area is given by the formula ...

  A = 1/2ab·sin(C)

  A = 1/2(11 mm)(14 mm)·sin(12.2°) ≈ 16.27 mm²

The area of the triangle is about 16.27 square millimeters.

__

Additional comment

If you use Heron's formula for the area from the three side lengths, you find it is about 16.32 mm². That's the trouble with over-specified geometrical figures. The result you get depends on which of the given values you use. (To get the area accurate to 4 sf, the angle needs to be specified to 4 sf: 12.24°.)

  s = (4 +11 +14)/2 = 14.5

  A = √(s(s -a)(s -b)(s -c))

  A = √(14.5(14.5 -4)(14.5 -11)(14.5 -14)) = √(14.5·10.5·3.5·0.5) = √266.4375

  A ≈ 16.32

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The time taken by Amy to travel to the place was t = 4 hours.

A measure of average speed is the amount of distance travelled in a given amount of time. It is determined by dividing the overall mileage by the overall time required to cover that mileage.

In physics and other sciences, average speed is frequently employed to describe how objects move. For instance, it is possible to estimate how long it will take to go a certain distance or assess a car's fuel economy by looking at its average speed over a given distance. By dividing the whole distance travelled by the total time required, average speed may also be used to characterise the speed of an object that is moving at various speeds at different points along its path.

Let the time taken to get back = t + 1.

Now, it took one hour less time to get there thus time = t.

Now, average speed is given as:

average speed = total distance / total time

Substituting the values:

50 km/h = d / t

d = 50t  .........(1)

40 km/h = d / (t + 1)

d = 40(t + 1)......(2)

Setting the value of d as equal we have:

50t = 40(t + 1)

50t = 40t + 40

10t = 40

t = 4

Hence, the time taken by Amy to travel to the place was t = 4 hours.

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5 minutes in bike and by walking 1 hours 3 minutes

Traci Lynn saves getting to class each morning if she were to ride  6.12 minute

The formula is used to find the value of time is;

Time = Distance/speed

Given that Traci Lynn currently walks to school from her apartment, which is 1.3 miles away from her first class.

If she goes to school from the apartment by walking, then it will take time is;

Time = 1.3/3

Time = 0.43 hours

If she goes to school from the apartment by bicycle, then it will take time is;

Time = 1.3/5

Times = 0.26 hours

Therefore,

The time in minutes could Traci Lynn save getting to class each morning if She ride the bike is;

0.43 - 0.26

= 0.17 hours

= 0.17 x 36 = 6.12 minute

Hence, Traci Lynn saves getting to class each morning if she were to ride  6.12 minute

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Answer:

125.66cm

Step-by-step explanation:

Answer:

64.9 cm

Step-by-step explanation:

Area of a sector is

\(A=\pi r^{2} (\frac{angle}{360} )\)

r is 8 and the angle measure is 120

\(A=\pi 8^{2} (\frac{120}{360} )\\A=62\pi (\frac{120}{360} )\\A=64.93\)

or 25.5 inches ? The question has the radius measured in cm, but asks for the answer in inches. So depending on how the actual question is worded, the answer will change.

64.9cm is equal to about 25.5 inches

The graph of the equation is shown below

From the question, we are to graph the given equation

The given equation is

-3 = 5x - y

To graph the equation,

First we will determine the x-intercept and y-intercept

x-intercept

Put y = 0 in the equation

-3 = 5x - 0

-3 = 5x

x = -3/5

y-intercept

Put x = 0 in the equation

-3 = 5(0) - y

-3 = 0 - y

-3 = -y

y = 3

Using the x-intercepts and y-intercepts, we can plot the graph of the equation.

The graph of the equation is shown below

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Answers:

Explanation:

To use the quadratic formula, the equation should have the following form:

So, a is the number beside the y^2, b is the number beside y and c is the constant value.

Then, subtracting 1 from both sides of the equation, we get:

Therefore, the value of a is -7, the value of b is 7 and the value of c is -1. So, the discriminant is equal to:

Since the value of the discriminant is positive, we have two different real solutions. So, we can solve the quadratic equation as follows:

Therefore, the solutions of the equation are:

Answer:

B

x + y = 712

8x + 4y = 4,256

Step-by-step explanation:

If x=the amount of adult tickets, and y=the amount of children's tickets, then the total amount of tickets (712) should be x+y. Our first equation: x+y=712

The total made from adult tickets is found by multiplying the amount of tickets by the price per ticket: 8x. The total made from children's tickets is found by multiplying the amount of tickets by the price per ticket: 4y.The total amount of money made (4256) is the sum of the amount made by adult tickets (8x) and the amount made by children's tickets (4y). Our second equation: 8x+4y=4256

The sum ​(5.3x+4​)+​(−4.7x+7​) is ​0.6x+11.

The sum of two or more numbers, magnitudes, quantities, or specifics as established by or as if determined by the mathematical addition process: 14 is the result of the combination of 6 and 8. a specific sum, particularly when referring to money: The costs were a huge amount. The outcome of adding two or more numbers or phrases is known as the sum in mathematics. As a result, the sum serves as a means of bringing everything together. To put it another way, combining two or more numbers yields a new outcome or sum.

(5.3x+4)+(-4.7x+7)

Determine the sign.

5.3x+4-4.7x+7

Combine like terms.

0.6x+11

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Answer: 32

Step-by-step explanation:  If she had 8 in her had and placed 3 cards down she would have 5 and if there were 8 cards in each group then, 8x4=32

Answer:

y=-2

Step-by-step explanation:

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have a nice day :)

Answer:

y=-2

Step-by-step explanation:

3(y-3)=-15

Divide both sides by 3:

3(y-3)/3=-15/3

Simplify:

3(y-3)/3=-15/3

3(y-3)/3

Divide the numbers:3/3=1

=y-3

Simplify:

-15/3

Divide the numbers:15/3=5

=-5

y-3=-5

Add 3 to both sides:

y-3+3=-5+3

Simplify:

y=-2

The location of the center of the circle is (h, k) = (4, 8) and the radius of the circle is equal to 2.5.

In this question we must determine the location of the center and the measure of the radius of a circle. According to Euclidean geometry, diameters are the longest possible chords of a circle. First, we determine the location of the center by definition of midpoint:

(h, k) = (1/2) · (4, 5.5) + (1/2) · (4, 10.5)

(h, k) = (4, 8)

And the radius is found by Pythagorean theorem:

\(d = \sqrt{(4 - 4)^{2}+(10.5-5.5)^{2}}\)

d = 5

r = 0.5 · 5

r = 2.5

The location of the center of the circle is (h, k) = (4, 8) and the radius of the circle is equal to 2.5.

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Answer:

y = 2x² - 8x + 5

Step-by-step explanation:

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

Expand,

y = 2x² - 8x + 8 - 3

Subtract the number,

y = 2x² - 8x + 5

The 1st one/Top one.

X value is different each time. Function can have the same y-value (3, 1), (2, 1) but can't have the same x-value (3, 1) (3, 3)

Answer:

if that is the ratio the fraction would be 8/14 but if we were to simplify this fraction it would be 4/7

As a result of answering the question, we may state that Histograms graphs typically feature the variable being measured on the x-axis and the frequency or count on the y-axis.

Mathematicians use graphs to visually express or chart facts or values in a logical way. Usually, a graph point will show the relationship between two or more objects. A graph is a non-linear data structure made up of nodes, also known as vertices, and edges. The nodes, sometimes referred to as vertices, should be joined with glue. Vertices in this graph are 1, 2, 3, and 5, whereas edges are 1, 2, 1, 3, 2, 4, and (2.5). (3.5). (4.5). Graphical depictions of exponential development in statistical charts, such as bar charts, pie charts, and line graphs. a triangle-shaped logarithmic graph.

The right response is a. a histogram with frequency and ratings shown on the y-axis. This is so that the distribution of observations within each score interval can be shown graphically using a histogram with scores on the x-axis and frequency on the y-axis. The frequency table displays the number of observations for each score interval.

Due to the fact that frequency is a count and cannot be represented as a continuous variable, options b and c display frequency on the x-axis, which is illogical.

Option d deviates from the standard histogram format by plotting scores on the y-axis and frequency on the x-axis. Histograms typically feature the variable being measured on the x-axis and the frequency or count on the y-axis.

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Answer:

-22x-11

Step-by-step explanation:

Your welcome! :)

Answer:

70%

Step-by-step explanation:

35/50 = 0.7

Answer:

35 is 70% of 50.This means that a $50 item with a $35 discount is receiving a 70% discount.

Answer:

multiply them fro your answer

Answer: Undifined!

Step-by-step explanation: Division by zero is considered an invalid operation in mathematics because there is no number that can be multiplied by zero to produce the original number. In other words, there is no single valid answer to dividing by zero. Example: You have 0 cookies and you want to share them among 9 friends. There's no way to share, since you don't have cookies haha!

Answer:

Step-by-step explanation:

An expression without a value is referred to as being undefined; it has an indeterminant form. When a number is divided by zero, it usually has no specified meaning. Mathematically, we can't divide by zero because the result is an equation we can't compute.