which answer is correct?

Answer:

3/4x+2

Step-by-step explanation:

We can see the y intercept is 2 so our equation looks like this

y=mx+2

We just need to solve for m

We can take the point

(4,5)

and plug it in

5=4x+2

solve for x

x=3/4

Step-by-step explanation:

P(-1,1), Q(2,3), R(2,1)

Let P(-1,1)be x1and y1

Q(2,3)be x2 and y2

therefore, by distance formula

d(PQ)= root (x2-x1)^2+(y2-y1)^2

= root[ 2-(-1)] + (3-1)

=root (2+1)^2+2^2

= root (3square +2square )

= root 9+4

d( PQ) = root 13.........(1)

Now find distance QR and PR then prove that the three sides are not equal and therefore it is a scalene triangle

2nd also do the same.

Answer: 75%

Step-by-step explanation:

Only 9 students have taken fewer than 21 courses

9/12 = 0.75 or 75%

A clockwise rotation of 144° about the origin will map the pentagon onto itself. Option(c) is the correct answer.

The number of sides (n) of the pentagon is:

n =5

The pentagon will not be plotted onto itself when reflected across the x-axis because the pentagon has 5 sides (an odd number of sides).

To draw the pentagon onto itself, the pentagon has to be rotated.

The angle of rotation is:

θ \(= \frac{360}{n}\)

θ  \(=\frac{360}{5} = 72\)

Other possible angles of rotation must be multiple of 72. i.e.

θ= 72, 144, 216, 288...

Hence, a clockwise rotation of 144° about the origin will map the pentagon onto itself.

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The complete question is:

A regular pentagon is centered about the origin and has a vertex at (0, 4). Which transformation maps the pentagon to itself?

a. A reflection across line m

b. A reflection across the x-axis

c) A clockwise rotation of 144 degrees about the origin

The graph of the polynomial f(x) is added as an attachment

From the question, the equation of the polynomial is given as

f(x) = x^3 + 3x^2 – 4x – 12

To start with, we need to represent the function of the polynomial properly

So, we have the following representation

f(x) = x³ + 3x² – 4x – 12

Solving further, we need to factorize the function

This gives

f(x) = x²(x + 3) - 4(x + 3)

Factor out x + 3

f(x) = (x² - 4)(x + 3)

Express as difference of two squares

f(x) = (x - 2)(x + 2)(x + 3)

When the above equation is solved, we have

x = 2, x = -2 or  = -3

This means that the intercepts of the function are -3, -2 and 2

Next, we plot the polynomial function using the above intercepts and the end behavior

See attachment for the graph of the function

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Answer:

7 hours

Step-by-step explanation:

$247.50 - $45.00 (how much he charges for the first hour) = $202.50

$202.50 ÷ $33.75 (how much he charges for the additional hours) = 6 hours

But he charges 45 dollars for the first hour so he 7 hours in total

Answer:

X=1

Step-by-step explanation:

Answer:

X would equal 1

Answer:

46872

4687200

46872000

468720000

Step-by-step explanation:

say x is "?"

x ÷ 10000 = 4.6872

multiply 10000 into 4.6872 = 46872

x ÷ 10000 = 468.72

Multiply 10000 into 468.72 = 4687200

For each "0" you would move a decimal to your right when multiplying and move it to your left when dividing

Answer:

Step-by-step explanation: f(x) =2-5x

2-5(-2)=12

2-5(-1)=7

2-5(0)=2

2-5(1)= -3

2-5(2)-8

I hope this helps. All you have to do is plug in the numbers in the equation for x and then solve!

Answer:

-4

Step-by-step explanation:

Start with 3(2x + 8) = 0.

Distribute the 3 to the 2x and 8 in the parentheses.

That will give you 6x + 24 = 0.

Subtract 24 from both sides, which will get x by itself and leave you with 6x = -24.

Divide both sides by 6 to get x = -4.

That is your answer.

Hope this helped.

The number 4.930 × 104 m has five significant figures. This can be determined by counting the digits that are not zeros.

A significant figure is a digit that contributes to the accuracy of the measurement. In this number, the digits 4, 9, 3, and 0 all contribute to the accuracy of the measurement, so they are all significant figures. The number 4.930 × 104 m has five significant figures. This can be determined by counting the digits that are not zeros. The number 104 is not a significant figure, as it is a multiplier and does not contribute to the accuracy of the measurement. Therefore, the total number of significant figures in 4.930 × 104 m is five.

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It looks like you want to find

\(\displaystyle \int_1^4 x f''(x) \, dx\)

Integrate by parts:

\(u = x \implies du = dx\)

\(dv = f''(x) \, dx \implies v = f'(x)\)

Then

\(\displaystyle \int_1^4 x f''(x) \, dx = x f'(x) \bigg|_{x=1}^{x=4} - \int_1^4 f'(x) \, dx\)

By the fundamental theorem of calculus,

\(\displaystyle \int_1^4 f'(x) \, dx = f(4) - f(1)\)

so that

\(\displaystyle \int_1^4 x f''(x) \, dx = 4 f'(4) - f'(1) - f(4) + f(1) = 12 - 7 - 8 + 4 = \boxed{1}\)

Answer:

P\(\begin{matrix}'\\i\\\end{matrix}\)(0.3) Q':(4,5) R\(\begin{matrix}'\\:\\\end{matrix}\)(4,-1)

Step-by-step explanation:

\(P\left(-6,4\right)\ \ \ \ \ Q\left(2,8\right),R\left(2,-4\right)\)

\(1.\ a\ scale\ factor\ of\ 05\ centered\ at\ 0.\)

\(P\left(-6,4\right)\rightarrow\)\(P_1\left(-3,2\right)\ \ \ \ \ Q\)\(\left(2,8\right)\rightarrow\)\(Q_1\left(1,4\right)\)

\(R\left(2,-4\right) > R_1\left(1,-2\right)\)

\(2.\ I\ unit\ np.\ 3\ units\ rign\ t.\)

\(the\ y\ plus\ 1,\ x\ plus\ 3\)

\(P_1\left(-3,2\right)\)\(\rightarrow\)\(P^'\)\(\left(0,3\right)\)

\(Q_1\)\(\left(1,4\right)\)\(\rightarrow\)\(Q^'\)\(\left(4,5\right)\)

\(R_1\left(1,-2\right)\rightarrow\)\(R^'\)\(\left(4,-1\right)\)

\(So\ the\ final\ coordinates\ of\\)Δ\(P'Q'R'\)

\(are\ above.\)

I hope this helps you

:)

Answer:

3 dollars

Step-by-step explanation:

20 dollars is his total

$20-2 dollar water bottle=18

18 dollars divided by 6 cupcakes equals 3 dollars for each cupcake.

Answer:

dteps

Step-by-step explanation:

answer

The equation of a line that includes the point (5,10) and has a slope of 2 in slope- intercept form is given by y=2x.

As given in the question,

The equation of a line that includes the point (x₁, y₁)=(5,10) and has a slope 'm' of a line is equal to 2  in slope-intercept form is given by

(y - y₁)/( x - x₁ )=m

⇒( y-10 )/(x -5)=2

⇒(y-10 )=2 (x -5)

⇒(y -10)=2x -10

⇒y=2x - 10 +10

⇒y=2x

Therefore, the equation of a line that includes the point (5,10) and has a slope of 2 in slope-intercept form is given by y=2x.

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Answer:

-128

Step-by-step explanation:

hope it helps srry if its wroung:>

Cohen's conventions for interpreting d, this effect is small. Therefore, the correct answer is a. small.

According to Cohen's conventions for interpreting the effect size (d), the effect described in the study is considered "small." Cohen's conventions provide a general guideline for categorizing the magnitude of an effect size.

In this case, the effect size (d) is calculated to be 0.02. Cohen's conventions typically classify effect sizes as follows:

Small effect: d = 0.2

Medium effect: d = 0.5

Large effect: d = 0.8

Since the effect size of 0.02 is significantly smaller than the threshold for a small effect (0.2), it falls into the "small" category. This means that the difference in the number of words uttered per day between men and women, as reported in the study, is relatively small or negligible in practical terms.

Therefore, the correct answer is a. small.

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Answer:

Was it from goldenglare? Cuz that was disgusting

Answer:

i'm with u cause i saw something inappropriate earlier

Step-by-step explanation:

Answer:

Step-by-step explanation:

\(\sin x =\frac{15}{31}\\x=\sin^{-1} \left(\frac{15}{31} \right) \approx \boxed{28.94^{\circ}}\)

Answer:

B) This student performed better than 78% of the other test-takers in the verbal part and better than 34% in the quantitative part.

Step-by-step explanation:

In Statistics, Percentile refers to how specific variables can be divided according to the distribution of values in a population of 100 equal groups.

The data value of a given percentile can be determined  as 100 times the cumulative relative frequency of that value.

From the given question.

Suppose a test-taker scored at the 78th percentile for their verbal sent to test-takers, the percentiles associated grade and at the 34th percentile for their quantitative grade.  

This implies that ;

The student score shows the relation between a particular score of :

78% and the scores of the rest of a group for the verbal test takers   &

34% and the scores of the rest of a group for the quantitative test takers.

Therefore; we can conclude that ;

This student performed better than 78% of the other test-takers in the verbal part and better than 34% in the quantitative part.

Answer:

Regina writes the expression y +9.3/4

Using The commutative property

a + b = b + a

= 9.3/4  + y

= (9.3/4) + y

Step-by-step explanation:

Regina writes the expression y +9.3/4

Using The commutative property

a + b = b + a

= 9.1/4  + y

= (9.1/4) + y

Factor when divides the function the remainder is zero. The factorized form of the function f(x)=125x⁶-8 is (5x²-2)(25x⁴ + 10x²+4).

A factor of a function is a factor which when multiplied by another the result is the function itself.

We know that in order to factorize a function, we need to take the common terms out from the expression,

\(f(x)=125x^6-8\)

The given function can be written as,

\(f(x)=125x^6-8\\\\f(x)=5^3x^6-2^3\\\\f(x)=(5x^2)^3-2^3\)

Now, we will use the algebraic property to solve the function.

\(f(x)=(5x^2)^3-2^3\\\\f(x)=(5x^2-2)(25x^4+10x^2+2^2)\\\\f(x)=(5x^2-2)(25x^4+10x^2+4)\)

Hence, the factorized form of the function f(x)=125x⁶-8 is (5x²-2)(25x⁴ + 10x²+4).

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Answer:

C

Step-by-step explanation:

The acceleration of the object moving at a constant speed in a circular path of radius r at a rate of 1 revolution per second is given by option C, 2π^2r^2.

The object experiences centripetal acceleration towards the center of the circle. Although its speed remains constant, the direction of its velocity continuously changes, resulting in acceleration. The magnitude of centripetal acceleration can be calculated using the formula a = (v^2) / r, where v is the linear velocity and r is the radius of the circular path. In this case, the linear velocity is the circumference of the circle (2πr) divided by the time (1 second), squared, and divided by the radius (r), resulting in 2π^2r^2.

The acceleration of an object moving in a circular path is directed toward the center of the circle and is known as centripetal acceleration. In this scenario, the object moves at a constant speed of 1 revolution per second, which means it completes a full circular path in 1 second. The linear velocity can be calculated by dividing the circumference of the circle (2πr) by the time taken to complete one revolution (1 second). Since the speed is constant, there is no tangential acceleration. However, the object experiences centripetal acceleration due to the continuously changing direction of its velocity. The magnitude of the centripetal acceleration is given by the formula a = (v^2) / r, where v is the linear velocity and r is the radius. Plugging in the values, we get a = ((2πr) / 1)^2 / r = 4π^2r^2 / r = 4π^2r, which corresponds to option D, 4π^2r.

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The activation energy of the reaction is approximately 126.8 kJ/mol. The calculation was done using the Arrhenius equation and the natural logarithm of the rate constants at the two temperatures.

To calculate the activation energy of a reaction, we can use the Arrhenius equation:

k = A * e⁽⁻ᴱᵃ/ᴿᵀ⁾

where k is the rate constant, A is the pre-exponential factor, Ea is the activation energy, R is the gas constant, and T is the temperature in Kelvin.

We have two rate constants at different temperatures, so we can set up two equations:

k₁ = A * e⁽⁻ᴱᵃ/ᴿᵀ₁⁾

k₂ = A * e⁽⁻ᴱᵃ/ᴿᵀ₂⁾

We want to solve for Ea, so we can take the natural logarithm of both sides of each equation:

ln(k₁) = ln(A) - Ea/RT₁

ln(k₂) = ln(A) - Ea/RT₂

We can subtract the second equation from the first to eliminate ln(A):

ln(k₁) - ln(k₂) = Ea/R * (1/T₂ - 1/T₁)

Now we can solve for Ea:

Ea = -R * (ln(k₁) - ln(k₂)) / (1/T₂ - 1/T₁)

Plugging in the given values, we get:

Ea = -8.314 J/mol/K * (ln(6.20 x 10⁻⁴) - ln(2.39 x 10⁻²)) / (1/760 K - 1/700 K)

Ea ≈ 126.8 kJ/mol

Therefore, the activation energy of the reaction is approximately 126.8 kJ/mol.

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There are 16 people who share the worm.

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

In this illustration, Vince brought 6 boxes of worms to use as bait while fishing with his friends if each person uses exactly 3 8ths of a box of worms

The number of people who shared the works will be:

= Number of worms / Amount collected by each person

= 6 ÷ 3/8

= 6 × 8/3

= 16

In conclusion, 16 people shared it.

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Step-by-step explanation:

cost of 1 kg of jam = x

cost of 1 kg of butter = y

3x + 2y = 29 .....1

6x + 3y = 54 .....2

.....1 × 2 both sides of equation

6x + 4y = 58 .....3

.....3 - ......2

y = 4

replace y = 4 in 1......

3x + 8 = 29

x = 7

Checking 10 computer monitors for defects, where the probability of finding a defective monitor is 0.5% for each monitor, can be considered a binomial experiment.

To make the process of checking computer monitors for defects into a binomial experiment, the following conditions need to be met:

The experiment consists of a fixed number of trials.

Each trial has two possible outcomes: defective or non-defective.

The probability of success (finding a defective monitor) is the same for each trial.

The trials are independent of each other.

Define the number of trials: Glenda decides to check 10 computer monitors.

Determine the possible outcomes: Each monitor can either be defective or non-defective.

Establish the probability of success: The given information states that 0.5% of the monitors are defective, so the probability of finding a defective monitor is 0.5% or 0.005.

Verify independence: It is assumed that the outcome of checking one monitor does not affect the outcome of checking another monitor.

Check if all conditions are met: In this case, all the conditions for a binomial experiment are satisfied. The experiment consists of a fixed number of trials (10), each trial has two possible outcomes (defective or non-defective), the probability of success (finding a defective monitor) is the same for each trial (0.005), and the trials are independent of each other.

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