Identify any x-intercepts for the graph below .

Answer:

B) Observational

Explanation:

Observational studies are studies where the researchers only observe the variables and don't make changes. When the political pollster reports the percentage, it only observes the decision of the people but they can't change what makes a person select one candidate or the other.

Answer:

The width, x, is in the interval (0, 7), or 0 < x < 7.

Step-by-step explanation:

width = x

length = 7x + 7

area = x(7x + 7)

x(7x + 7) < 392

7x² + 7x - 392 < 0

x² + x - 56 < 0

(x - 7)(x + 8) < 0

We have two points of interest on the number line:

-8 and 7

That makes three intervals of interest:

(-∞, -8), (-8, 7), (7, ∞)

Now we test a number from each interval.

Try -10:

(x - 7)(x + 8) < 0

(-10 - 7)(-10 + 8) < 0

(-17)(-2) < 0

34 < 0 False

Interval (-∞, -8) does not work.

Try 0:

(x - 7)(x + 8) < 0

(0 - 7)(0 + 8) < 0

(-7)(8) < 0

-56 < 0 True

Interval (-8, 7) works.

Try 10:

(x - 7)(x + 8) < 0

(10 - 7)(10 + 8) < 0

(3)(18) < 0

54 < 0 False

Interval (7, ∞) does not work.

Since we are dealing with a rectangle, the length and width must be positive numbers.

The interval (-8, 7) works mathematically for the width, but it must be limited to positive numbers, so the width must be in the interval

(0, 7)

Answer:

Step-by-step explanation:

Combining like terms occurs at this step:

3x - 6 + 6 = 3 + 6

Combining the - 6 + 6 =and 3 + 6 yields:

3x = 9

Answer:

437.797

Step-by-step explanation:

Answer:

437.797

Step-by-step explanation:

thats the answer

We will get that the angle theta is:

θ = β/2

Remember that the sum of the interior angles of any triangle must be equal to 180°.

Now, looking at the triangle in the left, we can see that the top angle is equal to:

180 - 2α

The right angle is equal to:

180 - 2β

And the left angle is α

Then we can write:

α + (180 - 2α) + (180 - 2β) = 180

-α - 2β = -180

α = 180 - 2β

Now we can go to the other triangle, where theta is, and write:

α + β + 2θ = 180

Replacing what we found above, we get:

180 - 2β + β + 2θ = 180

-β + 2θ = 0

θ = β/2

That is the best simplification we can get with the given diagram.

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Answer:

x= -16

Step-by-step explanation:

-2x+5=37

-2x=37-5

-2x=32

x= -16

Answer:

x= -16

Step-by-step explanation:

The goal in this problem is to get X on one side by itself.

We know that the opposite of subtraction is addition and the opposite of multiplication is division.

so to get 5 over to the right side, we need to subtract.

-2x+5=37 >>-2x= 37-5= 32

your problem now reads -2x= 32

We still have -2 on the left side and we need it to go to the right side so that X is by  itself. The opposite of multiplication is division, so we will need to divide

-2x=32÷-2 >> x=-16

Answer:

C (-13,-2)

Step-by-step explanation:

Answer:

Ok! What's the question?

Answer:

B

Step-by-step explanation:

Look at the base :))

Answer:

Step-by-step explanation:

Hi, The cross section is rectangle

Mr. Wrench would charge $139 for a two-hour repair job for coming out to the house as N dollars and the charge per hour of work as x dollars.

Let's denote the charge for coming out to the house as N dollars and the charge per hour of work as x dollars. We are given the following information:

For a one-hour repair job, the total charge is $97.

For a five-hour repair job, the total charge is $265.

From this, we can set up two equations:

N + 1x = 97 (equation 1)

N + 5x = 265 (equation 2)

To find the charge for a two-hour repair job, we need to solve for N and x in the equations above and substitute the value of x into the equation for a two-hour repair job.

Subtracting equation 1 from equation 2, we get:

(5x - 1x) = (265 - 97)

4x = 168

x = 42

Now we can substitute the value of x into equation 1 to solve for N:

N + 1(42) = 97

N + 42 = 97

N = 97 - 42

N = 55

Therefore, the charge for a two-hour repair job is N + 2x:

55 + 2(42) = 55 + 84

= $139

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Answer:

children = 87 ; adults = 366

Step-by-step explanation:

a + c = 453

2.25a + 1.25c = 932.25

a = 453 - c

2.25(453 - c) + 1.25c = 932.25

1019.25 - 2.25c + 1.25c = 932.25

-c = 932.25 - 1019.25

-c = -87

c = 87

a = 453 - 87

a = 366

Answer:

Zero!!

Zero can't be divided and when multiplied, will result 0.

Answer:

answer in picture

Step-by-step explanation:

Zoe would need 21 cups of vinegar to make 4 1/4 recipes of her salad dressing. This is calculated by multiplying 5 cups of vinegar (the amount used for one recipe) by 4.25 (4 1/4 recipes).

To calculate how much vinegar Zoe would need to make 4 1/4 recipes of her salad dressing, we first need to determine how much vinegar she uses for one recipe. In this case, it is 5 cups. Then, we need to multiply this amount by 4.25, which is the number of recipes she needs to make. 5 cups x 4.25 = 21 cups. Thus, Zoe would need 21 cups of vinegar to make 4 1/4 recipes of her salad dressing. This calculation can also be written as 5 cups x 4.25 recipes = 21 cups of vinegar.

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Answer:

1) y = -x -1

2) y + 4 = 3( x -2)

3) y = x + 1

Step-by-step explanation:

1)

The slope is the change in y over the change in x.  The y values from the points given is 0 and -1.  The x values from the points given is -1 and o

Slope: \(\frac{o - -1}{-1 - o}\) = \(\frac{1}{-1}\) = -1

y -intercept

y = mx + b  Use the point (0,-1) and the slope to solve for b

y = -1

m = -1

x = 0

y = mx + b

-1 = -1(0) + b

-1 = 0 + b

-1 = b  This is the y intercept.

y = mx + b

y = =x -1

2)

point-gradient form is

y -y = m (x-x)

y - -4 = 3 (x -2)

y + 4 = 3( x - 2)

3)

Parallel lines have the same slope.

slope is 1.  Use this and the point (0,1) to solve for b

y = mx + b

1 = 1(0) + b

1 = 0 + b

1 = b

y = x + 1

Answer:

Use https://www.bartleby.com/  it has helped me out a lot . Its actual tutors/teachers who answer your questions in about 30 minutes :)

Step-by-step explanation:

Answer:

500

Step-by-step explanation:

Answer:

500

put the 8,000 into the 40,000 mark. you will get a five and if you tried to put it in the last two, you would get 0. 8000*5=40000 so subtract 40,000 and you should get a 0 there. keep putting the zeroes until you get to the end.

Answer:

2

Step-by-step explanation:

10 divided by 5

The two integers whose product is 136 are 17 and 8.

Let x be one of the integers. Then, the other integer is 3x - 7. The product of the two integers is given by:

x * (3x - 7) = 136

Expanding and solving for x, we get:

x^2 - 7x + 136 = 0

Using the quadratic formula, we can find the two solutions for x:

x = (-(-7) ± √(\((-7)^2\) - 4 * 1 * 136)) / (2 * 1)

x = (7 ± √(49 + 544)) / 2

x = (7 ± √593) / 2

Since x must be an integer, we round down the decimal to the nearest integer to get:

x = 8 or x = 9

Since x represents one of the integers, the other integer is 3x - 7, so:

3x - 7 = 3 * 8 - 7 = 17

Therefore, the two integers are 8 and 17, and their product is 136.

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A discrete random variable may take on only a countable number of distinct values such as 0,1,2,3,4,...

Discrete random variables are usually (but not necessarily) counts. If a random variable can take only a finite number of distinct values, then it must be discrete. Examples of discrete random variables include the number of children in a family, the Friday night attendance at a cinema, the number of patients in a doctor's surgery, and the number of defective light bulbs in a box of ten.

The probability distribution of a discrete random variable is a list of probabilities associated with each of its possible values. It is also sometimes called the probability function or the probability mass function.

Example'

The cumulative distribution function for the above probability distribution is calculated as follows:

The probability that \(X\) is less than or equal to is 0.1,

the probability that \(X\) is less than or equal to 2 is 0.1+0.3 = 0.4,

the probability that \(X\) is less than or equal to 3 is 0.1+0.3+0.4 = 0.8, and

the probability that \(X\) is less than or equal to 4 is 0.1+0.3+0.4+0.2 = 1.

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6√3 inches is the length of the altitude of the equilateral triangle.

Let x be the length of one side of the equilateral triangle.

The perimeter of the equilateral triangle is 3x since all sides are equal.

So, 3x = 36 inches.

Dividing by 3 on both sides, we get x = 12 inches.

Let h be the altitude of the equilateral triangle.

The altitude bisects the base of the equilateral triangle and creates two right triangles, each with a base of 6 inches (half of 12 inches) and a hypotenuse of 12 inches (the side of the equilateral triangle).

Using the Pythagorean theorem, we can find the height of the right triangle:

\(h^2 + 6^2 = 12^2\\\\h^2 + 36 = 144\\\\h^2 = 108\\\\h = sqrt{(108)} = 6\sqrt3\ inches.\)

Therefore, the length of the altitude of the equilateral triangle is h = 6√3 inches.

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Answer:

y=x-5

Step-by-step explanation:

y=mx+b

if lines are parallel then that means the slope (m) is the same so the only thing left to change is the y-intercept (b). this can be anything but probably shouldn't be what the original was

The sum of angle in a triangle is 180°

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted \triangle ABC.

The sum of angle A, B and C is 180 i.e A+B +C = 180°

Also a triangle is a 3 sided polygon. The sum of of angle in a polygon is( n-2)180

How do we prove that the sum of angle in a triangle is 180°?

Since triangle is 3 sided, n= 3, because n denote the number if sides

therefore the sum of angle = (n-2) 180 = (3-2)×180

= 180°

therefore the sum of angle In a triangle is 180°

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\( \huge {\green{\fbox{\blue{\underline{\pink{Answer}}}}}}\)

Perimeter of a triangle = Sum of all sides of triangle

The unit of perimeter of a triangle is same as length of its sides

Y in represents the following in this linear regression Y = α₀+α₁X+α₂X₂+ε: C. dependent variable.

In Mathematics and Geometry, a regression line is a statistical line that best describes the behavior of a data set. This ultimately implies that, a regression line simply refers to a line which best fits a set of data.

In Mathematics and Geometry, the general functional form of a linear regression can be modeled by this mathematical equation;

Y = α₀+α₁X+α₂X₂+ε

Where:

In conclusion, Y represent the dependent variable or response variable in a linear regression.

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Answers:

======================================================

Explanation:

Skip to the "Work Shown" section below to see the steps for each part.

Each variable is a place holder for some unknown number. We can think of it like a box that holds a number. Luckily the letter x is found in the word "box" to help cement this line of thinking.

1x = 1 box

2x = 2 boxes

3x = 3 boxes

and so on

This shorthand notation allows us to quickly add boxes

2 boxes + 3 boxes = 5 boxes

So 2x+3x = 5x

And we can subtract boxes as well

7 boxes - 3 boxes = 7x - 3x = 4x = 4 boxes

The same number must go in box x for this to work out.

When it comes to dealing with negative numbers, it might help to use a vertical number line. I like to think of it like going up and down an elevator on a skyscraper. Negative integers represent basement levels.

It's possible to have boxes within boxes. The box A has the three boxes x-y+z inside it. So wherever we see an "A", replace it with x-y+z. Unfortunately we don't know what numbers go in the boxes for x, -y and z. Use the same type of thinking for B and C.

Don't forget to use the distributive property to distribute the negative through to each term.

Example: (x+y)-(w+z) = x+y-w-z

Many students make the mistake in saying that (x+y)-(w+z) = x+y-w+z which is not true. The +z should be -z at the very end.

Let me know if you have any other questions.

The next section below shows the steps needed to get the three answers.

----------------

Work Shown:

Part (I)

A+B+C = (x-y+z)+(2x-3y+4z)+(4x-5y-6z)

A+B+C = (x+2x+4x)+(-y-3y-5y)+(z+4z-6z)

A+B+C = 7x - 9y - z

Part (II)

A-B+C = (x-y+z)-(2x-3y+4z)+(4x-5y-6z)

A-B+C = x-y+z-2x+3y-4z+4x-5y-6z

A-B+C = (x-2x+4x)+(-y+3y-5y)+(z-4z-6z)

A-B+C = 3x - 3y - 9z

Part (III)

A+B-C =  (x-y+z)+(2x-3y+4z)-(4x-5y-6z)

A+B-C =  x-y+z+2x-3y+4z-4x+5y+6z

A+B-C = (x+2x-4x)+(-y-3y+5y)+(z+4z+6z)

A+B-C = -x + y + 11z

Answer:

Given figure is Parallelogram:

Answer of 7:HK=JI(Given;since in a parallelogram opposite sides are equal and parallel always given)

Answer of 8:JH=JH(common side of both the traingles)

Answer of 9:(By SSS axiom of congruency).

Answer:

Step-by-step explanation:

Main Answer: A normalized binary number typically consists of three parts:

Supporting Question and Answer:

What is a sign bit in a normalized binary number?

The sign bit is the leftmost bit of a normalized binary number and indicates whether the number is positive or negative .A value of 0 indicates a positive number, while a value of 1 indicates a negative number.

Body of the Solution: A normalized binary number typically consists of  the following three parts:

Final Answer: A normalized binary number typically consists of three parts:

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