6x+7=-5 i got it wrong

The equivalent expression for the given expression is 8(d - 2f)

From the question, we are to factor out the GCF

The given expression is

8d - 16f

The GCF of the terms in the expression is 8.

∴ 8d - 16f = 8(d -2f)

The factored form of the expression is 8(d - 2f)

Hence, the equivalent expression for the given expression is 8(d - 2f)

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The probability that the sample proportion will be less than 0.04 is 0.8995 or 89.95%.

The true proportion (p) is given to be 0.03.

Therefore, Mean (μ) = p = 0.03.

The standard error of sampling distribution can be calculated using the formula σ = √[{p(1 - p)}/n], where n, is the sample size, that is, n = 476.

Therefore, σ = √[{0.03(1 - 0. 03)}/476] = 0.00782.

Since, np = 14.28 and n(1 - p) = 461.72 are both greater than 5, we assume the sample is normally distributed.

Since, we are asked to find the probability that the sample proportion is less than 0.04, we using our calculator, enter as following:

Normalcdf(-100000000,0.04,0.03,0.00782), which gives us the value 0.8995 or 89.95%.

Thus, the probability that the sample proportion will be less than 0.04 is 0.8995 or 89.95%.

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The equation of the parabola which has a vertex at (-2,0) is; y = x² +4x +4.

From the task content, it follows that the vertex of the of the parabola described by the graph in discuss is given by the point; (-2,0).

Hence, the vertex form of the equation is;

y = (x-(-2))² +0

Hence, the equation is; y = x² +4x +4.

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Answer: B

Step-by-step explanation:

Edge 2023

The shape of the cross section is a square. The correct option is the D. SQUARE

From the question, we are to determine shape of the cross-section formed.

A cross-section is seen when a three-dimensional image is cut by a plane.

The given figure is a square pyramid.

In the given diagram, plane S is a square. The intersection of plane S with the square pyramid gives square cross-section as shown in the figure.

Thus, the shape of the cross section is a square.

A shows a parallelogram

B shows a triangle

C shows a trapezoid

D shows a square

Hence, the shape of the cross section is a square. The correct option is the D. SQUARE

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A transitional matrix answers two questions:

Where did people who are now in each job category come from,

and where did people who were in each job category go?

The term "transition matrix" is used in various contexts of mathematics. In linear algebra, it is sometimes used to represent changes in a coordinate matrix. In Markov chain theory, it is used as an alias for a stochastic matrix, a matrix that describes a transition.

The transition matrix P is regular if there are only positive entries in the power of P. If the transition matrix is ​​regular, a Markov chain is a normal Markov chain. For example, if you take the power of the matrix D in succession, the entry for D will always be (or will be) positive.

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Answer:

0.0256 or 16/625 or 2.56%

Step-by-step explanation:

The problem states that each light bulb operates independently of the other, so the probability doesn't change for each light bulb based on how many other light bulbs are working.

The probability of each light bulb working is 0.6 out of 1. However, we want the probability of it being broken.

1 - 0.6 = 0.4

This is the probability of one light bulb being broken. But there are 4 lightbulbs.

We can multiply 0.4 by itself 4 times, as the probability stacks.

0.4 * 0.4 * 0.4 * 0.4 = 0.0256 (Also achieved by raising 0.4 to the power of 4)

To get the percentage, multiply it by 100. 2.56%

0.4 is equal to 40% or 40/100. If you simply, that fraction is equal to 2/5

2/5 * 2/5 * 2/5 * 2/5 = 16/625 (Also achieved by raising 2/5 to the power of 4)

Answer:

x=7.48 cm, y=6.94

Step-by-step explanation:

Start by finding the value of x.

Using the Pythagorean Theorem, [tex]13^{2}+x^{2} =15^{2}[/tex]

[tex]169+x^{2} =225\\x^2=56\\x=\sqrt{56}\\x=2\sqrt{14}[/tex]

Using this, we can again use the Pythagorean Theorem to find the value of y.

[tex]2.8^{2} +y^{2} =(2\sqrt{14} )^{2} \\7.84+y^{2} =56\\y^{2} =48.16\\y=\sqrt{48.16}[/tex]

(I rounded to two decimal places, not sure what is required here)

x=7.48 cm

y=6.94 cm

The answer for the fill in the blank is 80

Statistics from 2003 to 2013 indicated that, in the United States, women were earning approximately ___80___ cents for every dollar earned by men.

Answer:

A is the correct answer...................................

The area of the circle is 157.14 square unit.

A circle is a round shaped figure , whose all points lie in the same plane and the distance between the center and any point on the circle is same.

It is given that , For Circle

Center is ( 8 , 2)

Point on the circumference is ( 3 , 7)

The distance between these point will give the radius

r = [tex]\rm \sqrt { (3-8)^2 + ( 7-2)^2[/tex]

r = √50 unit

The area of the circle is given by

A = π r²

A = π * (√50 )²

A =  π * 50

A = 50 π

A = 157.14 square unit

Therefore the area of the circle is 157.14 square unit.

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Answer:

9 sq cm

Step-by-step explanation:

If you join the two triangles it will become a square of side 3cm.

3cm * 3cm = 9cm squared.

Hope you have a nice day :)

Any questions please comment.

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\textbf{Keep in mind:}[/tex]

[tex]\large\textbf{When you hear or see the word \boxed{quotient} in mathematics}\\\large\textbf{usually it means the RESULT/ANSWER of a division}\\\large\textbf{equation.}[/tex]

[tex]\huge\textbf{Assuming:}[/tex]

[tex]\mathbf{\dfrac{1}{3}}[/tex]

[tex]\mathbf{\dfrac{1\leftarrow \boxed{\mathsf{dividend}}}{3\leftarrow \boxed{\mathsf{divisor}}} = result \leftarrow \boxed{\mathsf{quotient}}}[/tex]

[tex]\mathbf{1 \leftarrow \boxed{\rm{dividend}} \div 3 \leftarrow \boxed{\rm{divisor}} = result\leftarrow \boxed{\rm{quotient}}}[/tex]

[tex]\uparrow\huge\textbf{Simplify \& you'll have the quotient}\uparrow[/tex]

[tex]\mathbf{Quotient \rightarrow 0.333333333}[/tex]

[tex]\mathbf{Quotient \approx 0}[/tex]

[tex]\huge\textbf{Therefore, your answer should be:}[/tex]

[tex]\huge\boxed{\mathsf{0}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

The year in which population will be 54000, is 2020.

Step-by-step explanation:

In the question, it is given that the city's population is growing linearly. In 2008 , population was 28200 and in 2012 , it is 36800 .

It is required to identify the year in which population will be 54000 . equation.

Step 1 of 2

The population in 2008 was 28200 and in 2012 it was, 36800 .

The equation relating population and year is,

[tex]$$\begin{aligned}&y-28200=\left(\frac{36800-28200}{2012-2008}\right)(x-2008) \\&y-28200=\left(\frac{8600}{4}\right)(x-2008) \\&y-28200=2150(x-2008)\end{aligned}$$[/tex]

Step 2 of 2

The year in which population will be 54000 , can be determined by substituting 54000 for y,

[tex]54000-28200=2150(x-2008)$\\ $25800=2150(x-2008)$\\ $x-2008=12$\\ $x=2020$[/tex]

The width of the rectangle is 10 inches

The given parameters are:

Length = 3x + 6

Width = 3x + 4

Area = 120

The area of a rectangle is

Area = Length * Width

So, we have:

(3x + 6) *(3x + 4) = 120

Expand

9x^2 + 12x + 18x + 24 = 120

Evaluate the like terms

9x^2 + 30x - 96 = 0

Using a graphing calculator, we have:

x = 2

Substitute x = 2 in Width = 3x + 4

Width = 3 * 2 + 4

Evaluate

Width = 10

Hence, the width of the rectangle is 10 inches

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1st transformation: A vertical translation of the figure down by 8 units

2nd transformation: Shows a reflection on both axis and vertical translation up the plane by 8 units

Transformation is a way of changing the position of an object on an xy-plane.

For the translation

(x, y)-> (x, y-8)

It shows a vertical translation of the figure down by 8 units while the translation;

(x, y - 8) -> (-x, -y)

shows a reflection on both axis and vertical translation up the plane by 8 units

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Answer:

x > 0 and y < 2

Step-by-step explanation:

By definition the inverse of a function is simply, when the domain and range are swapped. So if the domain of g(x) is x < 2 and y > 0, then the inverse will have these swapped. So x > 0 and y < 2

Answer:

It would be C

Step-by-step explanation:

The fraction equal to 4/5 is 8/10 so closest to 8/10 is 8/11

Considering the slope of the lines, their relationship is given as follows:

They are not parallel because their slopes are not equal.

The slope, given by change in y divided by change in x, determines if the lines are parallel, perpendicular, or neither, as follows:

In this problem, their slopes are given as follows:

Different slopes, multiplication different of -1, hence the correct option is given by:

They are not parallel because their slopes are not equal.

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Answer:

C. They are not parallel because their slopes are not equal.

Answer:

48.2 metres

Step-by-step explanation:

Find the circumference of the circle, then ...

Explanation:

Circumference =2πr=2π(20)=40π meters

Arc Length =central∠360o×(Circumference)=138360×40π

=463π≈48.2 meters

hope that helps

The length of the arc of the circle is 48.2 meters.

The arc length formula for a circle is times the radius of a circle. Arc length ( [tex]\theta[/tex] x r) is a way to express the arc length formula in radians.

The length of the arc is calculated as:-

Circumference =2πr=2π(20)=40π meters

Arc Length  = Central ∠360° × (Circumference)

Arc Length  =138360×40π

Arc length =463π ≈ 48.2 meters

Therefore, the length of the arc of the circle is 48.2 meters.

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Based on quantitative reasoning, Alden should take the classes from Dr. Baeno in his next semester.

Quantitative Reasoning Behind Choosing Dr. Baeno

Alden talked to 17 friends that previously took course from Dr. Alvarez.

Eight out of 17 friends recommended Dr. Alvarez.

∴ The fraction of his friends in favor of Dr. Alvarez = 8/17

Also, Alden talked to 18 friends who took course from Dr. Baeno.

Eleven out of 18 friends recommended Dr. Baeno.

∴ The fraction of his friends in favor of Dr. Baeno = 11/18

Making Comparison

Now, since we know that,

11/18 > 8/17

The capacity for using knowledge and mathematics to address problems in the real world is known as quantitative reasoning.

Hence, applying quantitative reasoning, we can infer that it is more favorable for Alden to take classes from Dr. Baeno.

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Answer:

300°

Step-by-step explanation:

Given from the diagram:

Angle a° = 180° (Single angle on a straight line)

Angle c° + 60° = 180° (Sum of angles on a straight line)

Angle c° = 180° - 60° = 120°

Angle a° + c° = 180° + 120° = 300°

Answer:

a + c = 300°

Step-by-step explanation:

a = 180°

c = 180° -  60° = 120°

a + c = 180° + 120° = 300°

Answer:

4f

Step-by-step explanation:

I am using the variable f for fruit. Each pound of fruit costs $4, so the total will be 4 * the number of pounds of fruit.

The graphs show a parabola with a vertex that has Roots are -2 and 4.

We have given that,

vertex of (1,-9) and solutions of (-2,0) and (4,0).

y=k*(x+2)(x-4)

Vertex = (1,-9) is a point of the parabola

-9=k*(1+2)(1-4) implies k=1

Equation of the parabola is y=(x+2)(x-4).

The graphs show a parabola with a vertex that has Roots are -2 and 4.

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Applying the inscribed angle theorem, the value of x in the circle is: 126°.

According to the inscribed angle theorem, the measure of the inscribed angle, 63° is one-half of the measure of central angle, x, as shown in the circle given.

Therefore, we would have the following equation:

1/2(x) = 63

x = 2(63)

x = 126°

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The inequality that can be used to represent the situation is 7.50 + 14x ≤ 60 where x ≤ 3.75

7.50 + 14x ≤ 60

14x ≤ 60 - 7.50

14x ≤ 52.50

x ≤ 52.50 / 14

x ≤ 3.75

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The number of pennies there are, given the types of coins you have are 5 pennies.

Since we have 5 dimes, we can set up the equation:

1/4 = 5/x

where x is the total number of coins.

Solving for x, we can cross-multiply:

1x = 45

x = 20

So we have a total of 20 coins.

Subtracting the number of quarters (3), dimes (5), and nickels (7), we get:

20 - 3 - 5 - 7 = 5 pennies

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Answer: D.  8 cm.

Step-by-step explanation:

[tex]l_{arc}=\frac{26}{9}\pi \ cm\ \ \ \ \Theta=65^0 \ \ \ \ \ r=?\\\boxed {l_{arc}=2\pi r*\frac{\Theta^0}{360^0} }\ \ \ \ \ \Rightarrow\\\boxed {r=\frac{{l_{arc}}*360^0}{2\pi *\Theta} }.\\r=\frac{\frac{26}{9}*\pi *360^0 }{2\pi *65^0} =\frac{13*360^0}{9*65^0} =\frac{40}{5}=8 \ (cm).[/tex]

The time William would arrive in town B IS 1 : 47 pm.

The first step is to determine the distance and the time of Dennis's travel.

Time = 14 hours (2 pm + 12) - 10 hours = 4 hours

Distance = time x average speed

4 x 52 = 208 miles

The second step is to determine the time of William's travel:

Distance / average speed = time

208 / 40 = 5.20 = 5 hours 12 minutes

Time William left for the trip = 10 am - 1 hour 25 minutes = 8 :35am

Time he would reach town B = 8 : 35am + 5 hours 12 minutes = 13 hours 47 minutes = 1 : 47 pm

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In the given diagram, the value of the side labelled x is 10.8 cm

From the question, we are to determine the value of side x

Using the law of sines

In any given triangle XYZ,

[tex]\frac{x}{sinX}=\frac{y}{sinY}=\frac{z}{sinZ}[/tex]

Thus,

In the given triangle,

[tex]\frac{x}{sin81^\circ} =\frac{7}{sin40^\circ}[/tex]

∴ [tex]x=\frac{7 \times sin81^\circ}{sin40^\circ}[/tex]

x = 10.75599

x ≈ 10.8 cm

Hence, the value of the side labelled x is 10.8 cm

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