ILL GIVE BRAINLIEST, please help me and explain how to do it please

Answer:

The first, third, fifth and 6th statements are true.

Step-by-step explanation:

Answer:

Here are the ones you should select:

Step-by-step explanation:

1) The slope of AB is equal to slope of AC

Rise over run for AB =2/4=1/2

Rise over run for AC=3/6=1/2

so they are equal

2) Slope of AB is not equal to BE because of visual reasons but if you need an explanation I can provide it

3) AB is a segment on the line, so the slopes are equal as you can see in the illustration provided in the question

4/5) Slope=\(\frac{rise}{run}\), but AE/AB is not that, BE/AB is rise/run, so it's correct

6) CD/AD=rise/run, so it's correct

sorry if i got anything wrong!

Answer:

0

Step-by-step explanation:

The statement many quantitative models of decision making are based on comparing a single measure of effectiveness, generally some form of utility to the decision maker is true. So, the correct optio is option a. true.

Many quantitative models of decision theory, such as Expected Utility Theory and also                                             Multi-Attribute Utility Theory, involve comparing a single measure of effectiveness, typically some form of utility, to the decision maker. This allows for the evaluation and comparison of different options based on their expected outcomes and potential risks.

It helps the decision maker determine the best course of action.

Decision theory is a branch of probability. It is concerned with analytic philosophy. It deals with the decision making processes based on probabilities depending on the various factors and the numerical consequences of the outcome.

Therefore, the statement about the decision theory based on comparing a single measure of effectiveness is true.

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To estimate the sum of a convergent alternating series with an absolute error of less than 0.001, we can use the Alternating Series Estimation Theorem.

This theorem states that the error made by approximating the sum of an alternating series with the nth partial sum is less than or equal to the absolute value of the (n+1)th term.

In other words, if we want the absolute error to be less than 0.001, we need to find the smallest value of n such that |a(n+1)| < 0.001, where a(n) is the nth term of the alternating series.

Then, using the Alternating Series Test, we know that the terms of the series must approach zero as n goes to infinity. So, if we want the absolute error to be less than 0.001, we need to find the smallest value of n such that:

|a(n+1)| < 0.001

Now, we can rearrange this inequality to solve for n:

|a(n+1)| < 0.001

a(n+1) < 0.001 (since the series is alternating)

(-1)(n+1) * a(n+1) < 0.001 (-1 to account for the alternating signs)

a(n+1) > -0.001

Since the terms of the series are decreasing in magnitude, we can assume that the smallest value of |a(n+1)|. Therefore, we can set n = 1 to get:

|a(2)| < 0.001

|(-1)2 * a(2)| < 0.001

|a(2)| < 0.001

So the absolute error will be less than 0.001 if we use the first two terms of the series to estimate the sum.

The total of the convergent alternating series can be estimated with a minimum of two terms and an absolute error of less than 0.001.

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The statement is true. A network's physical topology refers to the arrangement of devices and cables that determine how signals travel electronically.

The physical topology of a network describes the physical arrangement of devices, cables, and other components that make up the network infrastructure. It defines how these elements are connected and how signals flow between them. The physical topology is concerned with the actual layout and structure of the network.

There are different types of physical topologies, including bus, star, ring, mesh, and hybrid topologies. In a bus topology, devices are connected to a central cable, and signals travel along the cable to reach their destination. In a star topology, devices are connected to a central hub or switch, and signals are transmitted from the source device to the hub/switch, which then distributes the signal to the destination device. A ring topology connects devices in a circular manner, where signals travel in one direction around the ring.

The physical topology determines factors such as signal propagation, fault tolerance, scalability, and network performance. It plays a crucial role in determining how efficiently and effectively signals travel electronically within a network. Therefore, the statement that a network's physical topology describes how signals travel electronically is true.

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Answer:

The length of the diagonal from P to Q is

\( \sqrt{ {9}^{2} + {12}^{2} + {8}^{2} } = \sqrt{289} = 17\)

Answer:

$4000

Step-by-step explanation:

so $2800 was the starting price

100%-30%=70%

So 2800=70%

2800/7=400

400=10%

400*10=$4000

Answer:

grgrtgdegtrt

Step-by-step explanation:

etetetetrdgtfrrgdergdrg

Answer:

y = 1/2x - 1

Step-by-step explanation:

The easiest was you do this is to first rearrange the equation into slope-intercept form (y = mx + b).  After rearranging, you can find the slope (m).

2x + y = -5

y = -2x - 5

The slope is -2.  Since the line we are trying to find is perpendicular, find the inverse and multiply it by -1.

-2  =>  1/2

Now use the point-intercept form to find the new equation.  Use the slope (1/2) and the given point (-1, -2).

y - y₁ = m(x - x₁)

y - (-2) = 1/2(x - (-2))

y + 2 = 1/2(x + 2)

y + 2 = 1/2x + 1

y = 1/2x - 1

The equation of the line perpendicular to line WX is  y = 1/2x - 1.

The equation is y = (1/2)x -(3/2) ; y = one half x − three halves.

The correct option is D.

What is the equation of a Straight Line?

An equation of the straight line is given by y = mx+c,

Here m is the slope and c is the intercept on y-axis.

The equation of the line WX is 2x+y = -5

y = -2x -5

The product of the slopes of the line and the line perpendicular to this line will be -1

Therefore the slope of the line perpendicular to the line WX is -2 * m = -1,

m = 1/2

y = (1/2)x +c

The line passes through the points (-1, -2)

-2 = (1/2) (-1) +c

c = -2 +(1/2)

c = (-4 +1) /2

c = -3/2

Therefore, the equation is y = (1/2)x -(3/2) ; y = one half x − three halves.

The correct option is D.

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Answer:

12f + 9.8g + 5.7 centimeters

Step-by-step explanation:

Side A = (9.8f-8.4) centimeters

Side B = (2.2f+4.9) centimeters

Side C = (9.8g+9.2) centimeters.

Perimeter of a triangle = Side A + Side B + Side C

= (9.8f-8.4) + (2.2f+4.9) + (9.8g+9.2)

= 9.8f - 8.4 + 2.2f + 4.9 + 9.8g + 9.2

Collect like terms

= 9.8f + 2.2f + 9.8g - 8.4 + 4.9 + 9.2

= 12f + 9.8g + 5.7 centimeters

Therefore, the expression which represents the perimeter of the triangle 12f + 9.8g + 5.7 centimeters

Answer:

Step-by-step explanation:

Solution given:

Surface area of a cylinder

S=2πrh

Now solving for h

Dividing both side by 2πr

\(\frac{S}{2πr}=\frac{2πrh}{2πr}\)

We get

h=\(\frac{S}{2πr}\)

Answer:

see explanation

Step-by-step explanation:

(a)

given the arithmetic series 5 + a + 14 + b

the difference between consecutive terms is constant , that is

a₂ - a₂ = a₃ - a₂ ( substitute values )

a - 5 = 14 - a ( add a to both sides )

2a - 5 = 14 ( add 5 to both sides )

2a = 19 ( divide both sides by 2 )

a = 9.5

then

a₄ - a₃ = a₂ - a₁

b - 14 = a - 5 = 9.5 - 5 = 4.5 ( add 14 to both sides )

b = 18.5

(b)

the sum to n terms of an arithmetic series is

\(S_{n}\) = \(\frac{n}{2}\) [ 2a₁ + (n - 1)d ]

where a₁ is the first term and d the common difference

here a₁ = 5 and d = a₂ - a₁ = 14 - a = 14 - 9.5 = 4.5 , then

S₁₀ = \(\frac{10}{2}\) [ (2 × 5) + (9 × 4.5) ]

     = 5(10 + 40.5)

     = 5 ×  50.5

     = 252.5

(c)

\(S_{n}\) > 500 , that is

\(\frac{n}{2}\) (50.5) > 500 ( multiply both sides by 2 )

50.5n > 1000 ( divide both sides by 50.5 )

n > 19.80198... , that is

n = 20

Answer:

Step-by-step explanation:

Each triangle has a formula of 1/2 a*b

So one triangle = 1/2 * 12 * 15 = 90

So the other one is the same area of 90 square feet.

Together they make 180 square feet.

You can check this by simply multiplying  a*b = 12 * 15 = 180 square feet.

Independent variables are the factors that are manipulated or controlled by the researcher in a study. In the context of investigating the impact of a school nutrition program on grade performance of high school students, the independent variable would be the school nutrition program itself.

The researcher would design and implement the program, and this variable would be under their control.

Dependent variables, on the other hand, are the outcomes or variables that are measured in a study and are expected to change as a result of the independent variable. In this case, the dependent variable would be the grade performance of the students. The researcher would collect data on the grades of the students before and after the implementation of the nutrition program, and this would be the variable that is expected to be influenced by the independent variable.

In summary, the independent variable in this research design is the school nutrition program, while the dependent variable is the grade performance of the students. The researcher would manipulate the independent variable (implement the nutrition program) and then measure the dependent variable (student grades) to determine if there is an impact of the program on grade performance.

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Answer:

1

Step-by-step explanation:

Substitute x with -3 and y with -7

2(-3)-(-7)

Multiply

-6-(-7)

Signs are both negative, turn into positive sign

-6+7

Add

1

Answer:

1

Step-by-step explanation:

x = - 3 and y = - 7

2x-y =?

Now

2*(-3)-(-7)

-6 +7. (sign of negative when multiplied it turns into positive)

1. Answer

When a rectangle is dilated by a scale factor of , the area of the rectangle will be multiplied by. This is because the width and the height of the rectangle are both multiplied by, therefore the area of the rectangle is multiplied by .

A rectangle is a two-dimensional shape with four sides and four right angles. It is one of the most common shapes found in nature and in the world. A rectangle has two pairs of equal-length sides and each angle is 90°. All four sides of a rectangle are straight, and the opposite sides are parallel. Rectangles are a special type of parallelogram and quadrilateral, which has two pairs of parallel sides. Rectangles can be used to make various structures, including buildings, furniture, and artwork. They are also used in mathematics to calculate area and perimeter.

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Complete Question:

Answer: \(\$1826\)

Step-by-step explanation:

Given

The company wants to decrease its bill by 17%

The amount of the current bill is \(\$2200\ \text{per month}\)

Percentage decrease is given by

\(\Rightarrow \dfrac{\text{original-New}}{\text{original}}\times 100\)

Suppose the new bill is x

\(\Rightarrow \dfrac{2200-x}{2200}\times 100=17\\\\\Rightarrow 1-\dfrac{x}{2200}=0.17\\\\\Rightarrow 0.83=\dfrac{x}{2200}\\\\\Rightarrow x=\$1826\)

The slope of the line, m = -3

The equation passes through the point (-2, 5)

That is x₁ = -2, y₁ = 5

Substitute x₁ = -2, y₁ = 5, and m = -3

The point-slope form of the equatio of a line is:

y - y₁ = m(x - x₁)

y - 5 = -3(x - (-2))

y - 5 = -3(x + 2)

y - 5 = -3x - 6

y = -3x - 6 + 5

y = -3x - 1

The graph of the equation y = -3x - 1 is plotted below

Answer:

11

Step-by-step explanation:

3/7r + 5/8s

r = 14

s = 8

3/7 x 14 + 5/8 x 8

3/7 x 14 = 6

5/8 x 8 = 5

6 + 5 = 11

ok so it's like the 3/7 and 5/8 are fractions so you just multiply each one by the number their next you which in this case is r and s so it's like you're just multiplying a fraction and a number. does that make since?

The required length of the curst on the edge of one piece of pizza 1.5 π. Option D is correct.

Perimeter is the measure of the figure on its circumference. The perimeter of a circle is given as 2πr, where r is the radius of the circle.

here,
A pizza has an 18-inch diameter
Circumference of pizza = 18π

The pizza is sliced into 12 pieces, and the length of the crust on the edge of one piece of pizza is given as,
= 18π/12
= 1.5π

Thus, the required length of the curst on the edge of one piece of pizza is 1.5 π.

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The answer in positive form using the law of exponents is 3/16.

The given expression is\(2^_(-4)\)\(- 2^_(-3)\)\(+ 2^_(-2).\)

To find the answer in positive form using the law of exponents, we need to take the reciprocal of each term and then simplify.

Let's begin:

\(2^_(-4)\ - 2^_(-3)\ + 2^_(-2)\)

= \((1/2^4) - (1/2^3) + (1/2^2)\)(using the law of exponents)

= (1/16) - (1/8) + (1/4) (taking the reciprocal of each term)

Now, we can simplify this expression by taking the common denominator. The common denominator is 16.

So, the given expression can be written as:

(1/16) - (2/16) + (4/16) = 3/16

Hence, the answer in positive form using the law of exponents is 3/16.

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Answer:

1800e^7f^3

Step-by-step explanation:
I'm assuming you mean (45e^6)(8f)(5ef^2)

we can simplify this into 45e^68f5ef^2 because of the commutative and associative properties. Then we can simplify into (45 * 8 * 5 ) into 1800. Then by combining like terms we can change e^6 f e f&2 into e^7 f^3 which added together with 1800 gives you the answer.

hope this helped!

Answer:

The answer is 7/24.

Step-by-step explanation:

I attached a picture, but I'll try to walk through it here.

1) A negative and a negative makes a positive, so h becomes positive.

2) I added 7/8 to both sides, in order to "isolate the variable", which simply means to get h by itself, on one side of the equation (you'll likely hear it said both ways).

3) I multiplied 7/8 by 3/3, and multiplied -7/12 by 2/2. This is known as a common denominator, which in this case is 24. You can only add and subtract fractions that have a common denominator.

4) Multiply both of the fractions to get 21/24 + (-14/24). "Adding a negative" is the same thing as subtracting.

5) 21 - 14 = 7, and since our denominators are the same, the answer is 7/24.

You can confirm the answer by substituting, or "plugging" 7/24 into your original equation, in place of h.

Answer:

first you do 11-3 to get 8. then you multiply 8 and 6 to get 48

The number of variables in a data collection whose values can fluctuate while others remain fixed is referred to as a degree of freedom. So, the third choice is the right one.

A variable that indicates a quantity being altered in an experiment is known as an independent variable. In equations, x is frequently used to denote the independent variable. A variable that indicates a quantity being altered in an experiment is known as an independent variable. Values that fluctuate in relation to one another are independent and dependent variables in mathematics.

Given.

The number of variables in a data collection whose values can fluctuate while others remain fixed is referred to as a degree of freedom. So, the third choice is the right one.

In other words, the number of values that can change in a statistical calculation is referred to as the degree of freedom.

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The two unit vectors are (2/5 +√5/10, 3/10 + 2√5/15) and (2/5 -√5/10, 3/10 - 2√5/15).

Given that, Angle = 60°, v = 8, 6

Consider unit vector a = (x, y)

x² + y² = 1 …. (1)

Now apply the dot product of unit vector with v

a.v = |a||v|cos Ø

a.v = √ (x² + y²) √ (8² + 6²) cos 60º

8x + 6y = 1 × 10 × ½

So we get,

8x + 6y = 5 …. (2)

y = (5 - 8x) / 6

Substituting the value of y in equation (1)

x² + y² = 1

x² + [(5 - 8x)/6]² = 1

x² + 25/36 + 16x²/9 - 20x/9 = 1

25x²/9 - 20x/9 = 11/36

So we get,

4 × (25x² - 20x) = 11

100x² - 80x = 11

100x² - 80x - 11 = 0

Now solve the quadratic equation,

x = { 2/5 ± √5/10}

Substituting the value of x in equation (2)

y = 3/10 ± 2√5/15

Therefore, the two unit vectors are (2/5 +√5/10, 3/10 + 2√5/15) and (2/5 -√5/10, 3/10 - 2√5/15).

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Answer:

for number 1 set them equal to each other so like 6x-44=88 and then solve for x and do the same thing for the second one