what are the x-intercepts of the quadratic equation? 7x(2x+5)=0

Answer: 8.3 m / sec

Step-by-step explanation:

Take 100 divided by 12 = 8.3 meter per second

Answer:

y = 2/3x - 6

Step-by-step explanation:

Knowledge Needed

Slope-Intercept form: y = mx + b

Leave y and x as variables as it is easier for graphing.

m is the slope, or how much the y-value changes every timer the x-value increases by 1.

b is the y-intercept, or the x-value of the line when it has a x-value of 0 (when it hits the y-axis.)

Question

Using this information, lets first find the slope.

To find the slope, we can use the slope formula. Use any two sets of points to plug into the formula.

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

I'll use the points:

(3, -4)

and

(6, -2)

Because they are marked.

Plug in your two y-values into the numerator and two x-values into the denominator.

[tex]\frac{-2 - - 4}{6 - 3}[/tex]

2/3

So, we have 2/3 as a slope. We can start writing the equation in slope-intercept form.

y = 2/3x + b

To solve for b, we can either examine the graph or solve it algebraically. However, if the graph is more complex we can't just look at it.

What is the x-value of the line when it touches the y-axis, or the bold vertical line?

-6

We know the y-intercept is -6.

y = 2/3x - 6

A total of 288 hours of exercise did by the end of the year.

What is distributive property?

Distributive Property is defined as the "distribute" of anything to divide it up or to give someone a piece of it.

Exercise in one month = 24 hours

Total exercise in a year = 24*12 = 288 hours

Hence, a total of 288 hours of exercise did by the end of the year.

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The value of p in the equation m = 4 / (p - d) on solving is p =  (4 + md) / m.

An assertion that two mathematical expressions have equal values is known as an equation. An equation simply states that two things are equal. The equal to sign, or "=," is used to indicate it.

Given:

m = 4 / (p - d)

Multiply the denominator of the right side by the left term as shown below,

m (p - d) = 4

mp - md = 4

Add md to both sides,

mp - md + md = 4 + md

mp = 4 + md

p =  (4 + md) / m

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The expression that represents the amount of money Nakeisha would have saved in w weeks will be 70 + 8w

The total money Nakeisha have after 8 weeks of saving is $134.

Given that Nakeisha is saving up to buy a new jacket, she already has $70 and can save an additional $8 per week using money from her after school job.

The expression that represents the amount of money Nakeisha would have saved in w weeks is:

= 70 + 8(w)

= 70 + 8w

The total money the she would Nakeisha have after 8 weeks of saving will be:

= 70 + 8w

= 70 + 8(8)

= 70 + 64

= 134

The amount saved is $134.

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The coordinates of the image of ABCD after applying the given transformation are, A"(2, 0), B"(0, -4), C"(-4, -6), and D"(-2, -2).

What is transformation of points?

The reflection is the kind of transformation that takes place whenever a shape's points cross a line. When the points are reflected over a line, the image is on the opposite side of the line from the pre-image and is located at the same distance from the line. The image point is reflected from each point (p, q).

Given:

Quadrilateral ABCD has coordinates A(−2, 0), B(0, 4), C(4, 6), and D(2, 2).

First to find the coordinates after applying the transformation  

(x, y) ⟶ (–x, y).

So,

A(-2, 0) ⟶ A'(2, 0)

B(0, 4) ⟶ B'(0, 4)

C(4, 6) ⟶ C'(-4, 6)

D(2, 2) ⟶ D'(-2, 2)

Now applying the transformation (x, y) ⟶ (x, –y)

A'(2, 0) ⟶ A"(2, 0)

B'(0, 4) ⟶ B"(0, -4)

C'(-4, 6) ⟶ C"(-4, -6)

D'(-2, 2) ⟶ D"(-2, -2)

Hence, the coordinates of the image of ABCD after applying the given transformation are, A"(2, 0), B"(0, -4), C"(-4, -6), and D"(-2, -2).

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The following statements that are true four years from now, in the year 2024 are the Thrift segment will demand 7,745 thousand units and the Core segment will demand 9,779 thousand units.

Demand in economics refers to a consumer's readiness to pay a particular price for goods and services as well as their desire to buy them. Demand for a good or service typically declines when its price goes up. Demand describes the consumer's desire and willingness to purchase a good or service at a specific time or over an extended period of time. Additionally, consumers must be able to afford the items they want or need based on their budgeted disposable income. Demand therefore has an impact on market expansion and economic growth.

Given

The following statements that are true four years from now, in the year 2024 are:

The Thrift segment will demand 7,745 thousand units.

The Core segment will demand 9,779 thousand units.

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If we choose to use a diameter of 201 for the experiment, the strength will be 786.6596.

Given, the experiment in which weld diameter and shear strength (in pounds) were measured for five distinct spot welds on steel produced the data that is included.

The gathered information and the regression equation are shown below.

Strength = -941.6992 + 8.5988×Diameter

we have to calculate the predicted y-hat value for the diameter value of 201.

Now, we are given the regression equation with the strength and diameter as the variables.

now, when we put the diameter equal to 201, the strength will be

Strength = -941.6992 + 8.5988×Diameter

Diameter = 201

Strength = -941.6992 + 8.5988×201

Strength = -941.6992 + 1,728.3588

Strength = 786.6596

So, the value of the strength be 786.6596

Consequently, the strength value when the diameter is 201 be, 786.6596.

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Answer:

75% of the number is equal to 50

Step-by-step explanation:

To find 75% of a number, we can multiply the number by 0.75. To find the number, we can first use the equation 15% * x = 10 to find what 15% of the number is equal to. Then we can divide both sides of the equation by 0.15 to find the value of x.

Here's how we can solve this problem:

First, let's set up the equation that represents the problem: 15% * x = 10

Next, we can divide both sides of the equation by 0.15 to find the value of x:

(15% * x) / 0.15 = 10 / 0.15

This simplifies to:

x = 10 / 0.15

Finally, we can multiply x by 0.75 to find 75% of the number:

0.75 * x = 0.75 * (10 / 0.15)

This simplifies to:

0.75 * x = 50

Therefore, 75% of the number is equal to 50

Answer: 49.95

Step-by-step explanation:

15%/100%=0.15

The percent is the same as 0.15

0.15x=10

x= 66.6

0.75*66.6= 49.95

Answer:

Point slope

(-7, -5)

Equation form

x=-7, y=-5

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Answer:

(-7, -5)

Step-by-step explanation:

y = x + 2

2x - 3y = 1

2x - 3(x + 2) = 1

2x - 3x - 6 = 1

-x - 6 = 1

    +6  +6

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

-x + 7

x = -7

y = x + 2

y = -7 + 2

y = -5

(-7, -5)

I hope this helps!

Answer:

war zone/ stumble guys:)

Step-by-step explanation:

The greatest common factor of 364, 916895, 378 is 7

The largest number, which is the factor of two or more number is called the Greatest Common Factor (GCF). It is the largest number (factor) that divide them resulting in a Natural number. Once all the factors of the number are found, there are few factors which are common in both. The largest number that is found in the common factors is called the greatest common factor. The GCF is also known as the Highest Common Factor (HCF)

In this problem, we have the numbers given with combination

A)

¹⁴C₃ = 364

Factors = 1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364

B) ⁷⁰C₄ = 916895

Factors = 1, 5, 7, 17, 23, 35, 67, 85, 115, 119, 161, 335, 391, 469, 595, 805, 1139, 1541, 1955, 2345, 2737, 5695, 7705, 7973, 10787, 13685, 26197, 39865, 53935, 130985, 183379, 916895

C) ²⁸C₂ = 378

Factors = 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378

The greatest common factors is 7

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Answer:

for A. Gavin would pay 10. because 1.00 + 3.00 + 3.00 + 3.00 is 10.
and for B. 1.50 + 2.00 + 3.00 = 6.50. so lian would get 3.50 change back.

Answer:

42 minutes

Step-by-step explanation:

We can multiply 60 into 7/10 hours to convert 7/10 into hours, since 1 hour is 60 minutes.

= 60 (7/10)

= 420 / 10

= 42

Answer:

42 minutes

Step-by-step explanation:

you just have to remember to multiply and divide (its hard really hard to multiply like that and divide)

The required slope (m) is -12 when the points given are (-3, 4) and (-3, -8).

In mathematics, a line's slope, also known as its gradient, is a mathematical expression of the line's steep slopes and orientation.

A line's steeper can be identified by looking at its slope.

The slope was calculated mathematically as "rise over run" (change in y divided by change in x).

So, the slope formula is:
m = y2 - y1/x2 - x1

Now, substitute the values and calculate the slope as follows:

m = y2 - y1/x2 - x1

m = -8 -4/-3+3

m = -12/0

m = -12

Therefore, the required slope (m) is -12 when the points given are (-3, 4) and (-3, -8).

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Regression analysis using the logistic regression, regression model best fits the description of the data.

When modeling the relationship between a scalar answer and one or more explanatory variables in statistics, linear regression is a linear method (also known as dependent and independent variables). Simple linear regression is used when there is only one explanatory variable, and multiple linear regression is used when there are numerous variables. As opposed to multivariate linear regression, which predicts numerous correlated dependent variables as opposed to a single scalar variable, this phrase is more specific.

When modeling relationships with linear predictor functions, the model's unknown parameters are inferred from the data.

The logistic regression method can be used in situations when the dependent variable is discrete. In other words, the likelihood of situations like pass/fail, true/false, 0/1, and so on that are mutually incompatible are calculated using this method. A sigmoid curve depicting the relationship between the independent variable and the target variable, which can only take on one of two values, and probability, which has a value between 0 and 1, are both present.

Regression analysis using the logistic regression regression model best fits the description of the data.

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The graph of the piece-wise function defined in this problem is given by the image shown at the end of the answer.

The function in this problem is classified as a piece-wise function because it has two definitions, given as follows:

To the left of x = 2, the definition is given as follows:

f(x) = -2x - 1.

Which is a decreasing line, which crosses the y-axis at y = -1, and finishes at the point (2,-5).

To the right of x = 2, the definition is given as follows:

f(x) = -x + 4.

Which is a decreasing line also, starting at point (2,2), and crossing the x-axis at x = 4.

The graph combining these two lines is shown at the end of the answer.

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The measure of the angle JKL as per the attached diagram is equal to 97 degrees.

As per in the question,

Diagram is attached.

Angle JKL is linear pair angle with given angle of measure 83 degrees.

Sum of the pair of linear pair is always equal to 180 degrees.

Let 'x' be the measure of angle JKL, we get,

83° + m ∠JKL = 180°

Subtract 83° from both the side of the equation we get,

⇒ 83° - 83° + m ∠JKL = 180° - 83°

⇒ m ∠JKL = 97°

Therefore, the measure of the angle JKL as per the attached diagram is equal to 97 degrees.

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Answer:

Hope it helps!

Step-by-step explanation:

Last year there were 74 students in the seventh grade class. This year there are 86 students in the seventh grade class.

Increase = 86 - 74 = 12

Percent Increase = (12/74) x 100 = 16.2%

Answer:

a. -2

Step-by-step explanation:

When the scale factor is greater than 1, the dilation is an enlargement.

We have to explain, what happens when you apply a scale factor greater than 1.

The pre-image and image have the same shape after dilatation, but they are not the same size.

The figure is the same from every perspective. The midpoints of the figure's sides and the dilated shape's midpoint are both unchanged.  Lines that are parallel and perpendicular to one another in the figure are identical to those in the dilated figure. The pictures stay the same.

When the scale factor is greater than 1, the dilation is an enlargement.

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Answer:

Tom is 164 years old and Bob is 3*164-82=246 years old.

Step-by-step explanation:

Let X be Tom's age.

Bob's age is 3X-82.

The difference in their ages is X-(3X-82)=2(3X-82)

Solving for X, we get X=164.

Tom is 164 years old and Bob is 3*164-82=246 years old.

The measure of the angle HBG found using the trigonometric ratio for cosines is about 27.266°

The trigonometric ratios is the set of relationships between the interior angles of a right triangle and the ratios of the lengths of two of the sides of the right triangle.

The measure of the size of the angle HBG, can be obtained from the specified lengths of the sides of the triangle ΔHBG and the trigonometric ratios as follows;

Length of BH = 27

Length of BG = 24

In the plane ABGH, the side BH is perpendicular to the side GH, therefore;

ΔHBG is a right triangle, where;

The hypotenuse side = BH

BG = The leg of the right triangle that is the adjacent side to the angle HBG.

The trigonometric ratios of the cosine of an angle is the ratio of the adjacent side to the angle to the hypotenuse of the right triangle.

[tex]cos(\theta) = \dfrac{Adjacent}{Hypotenuse}[/tex]

Therefore;

[tex]cos(\angle HBG) = \dfrac{24}{27}[/tex]

[tex]\angle HBG = arcos\left(\dfrac{24}{27}\right) \approx 27.266^{\circ}[/tex]

∠HBG ≈ 27.266°

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Put all terms on one side of the equal sign, leaving zero on the other side.

Factor.

Set each factor equal to zero.

Solve each of these equations.

Check by inserting your answer in the original equation.

It will cost Randy about $7.07  to edge it.

The length of a circle's edge in straight lines is known as its circumference.

Because pi is the initial letter in the Greek word perimitros, which means "perimeter," it was given the name "pi" for the first time by [the Welsh mathematician] William Jones in 1706.

C = 2Πr

r = 1.5 feet

Π ≈ 3.14

C ≈ 2 × 1.5 × 3.14 feet

C ≈ 9.42 feet

9.42 × 0 .75 = 7.065

So it will cost randy about $7.07

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Thus, we get regression equation as 7.5 =ý - 0.9x

Regression analysis is a group of statistical procedures used in statistical modeling to calculate the associations between a dependent variable and one or more independent variables.

Here,

The points are given as:

Xi: 2; 6; 9; 13; 20

Yi: 7; 18; 9; 26; 23

From the table of values, we have:

ΣEx=2+6+9+13+ 20 = 50

ΣEy = 7+18+9+26+23=83

Also, we have:

ΣExy = 2 x 7+ 6 x 18+9x9+13 × 26 +20 × 23: 1001

ΣEx² = 22 +6² +92 +13² +20² = 690

ΣEy² =72 +18² +9² +26² +23² =1659

The slope (b) is calculated as:

b=[tex]\frac{x - \frac{xy}{D} }{x^{2} -\frac{x^{2} }{n} }[/tex]

So, we have:

b=[tex]\frac{1001 - \frac{50}{83} }{690^{2} -\frac{50^{2} }{5} }[/tex]

b = 0.9

The y-intercept (a) is calculated as:

a =ý - bx

Where

y' =Σy/n =83/5=16.6

x'=Σx/n=50/5 =10

So we get ,

a=16.5 * 9*10

a=7.5

Thus, we get regression equation as 7.5 =ý - 0.9x

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Answer:

$2

Step-by-step explanation:

This way the US can compete with the lower Mexican prices.

Answer:

The answer is A($2)

Step-by-step explanation:

PLEASE MARK AS BRAINLIEST

The correlation values that represent the perfect linear relationship between x and y are = b) 1 and d) -1

Now first we need to understand what is meant by correlation,

The mutual relation or degree to which two or more quantities are mutually linear or related to each other, hence their degree or relation of correlation is qualified by correlation coefficient.

According to the question we need to find the correlation value that represents a perfect linear relationship between x and y

Since we know according to the definition of correlation, the perfect linear relationship between x and y could be represented if their magnitude is 1.

Both positive and negative values of magnitude 1 (i.e 1 and -1)  are defined as the linear relationship between x and y.

Therefore, The correlation values that represent the perfect linear relationship between x and y are both 1 and -1

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The equation that represents the array (rectangles and area) multiplication model that sows two grey shaded columns of length one ninth each and three rows with dots of width one fourth each is option a

a) The equation with fractions two ninths times three fourths is equal to six thirty sixths

[tex]\dfrac{2}{9} \times \dfrac{3}{4} = \dfrac{6}{36}[/tex]

An array representation of a multiplication is a rectangular visual order of positioning of rows and columns that indicates the terms of a multiplication equation.

Please find attached the area model to multiply the fractions

The terms of the equation represented by the model are indicated by the two columns of length one ninth each shaded grey and the three rows of width one fourth each covered with dots, such that the equation can be presented as follows;

[tex]\left(\dfrac{1}{9} +\dfrac{1}{9}\right) \times \left(\dfrac{1}{4} +\dfrac{1}{4} + \dfrac{1}{4} \right) = \dfrac{2}{9} \times \dfrac{3}{4} =\dfrac{6}{36}[/tex]

The equation that the model represents is therefore;

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