Hi pls help me and explain

"Centripetal is the word used to describe a vector that always points toward the centre of a circular path."

The centripetal acceleration vector is an acceleration in the radial direction that is directed towards the centre of the circular line of motion. It runs perpendicular to the linear motion, or v.

The direction of the velocity shift for a ball travelling around a curve is in the direction of the curve's centre. Centripetal acceleration is the acceleration that is directed towards the centre of a curved or circular route.

Any force that changes the path of motion towards the centre of a circular motion is known as a centripetal force. The portion of the force that produces the centripetal force is the part that is perpendicular to the velocity.

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Answer:(8,2.4)

Step-by-step explanation:

Answer:

208

Step-by-step explanation:

Took the quiz and got 100%

Lin is correct in thinking that the graph of g will be the same as the graph of f, translated to the left by 2 units.

The function g(x) = f(x - 2) is obtained by shifting the graph of f to the right by 2 units, which means that the point (a, f(a)) on the graph of f is mapped to the point (a - 2, f(a)) on the graph of g. Therefore, the shape of the graph of f remains the same, but its position is shifted to the right by 2 units to obtain the graph of g.

This can be seen by considering the effect of the transformation on the key features of the graph of f, such as its intercepts, maxima, and minima. For example, if f has a maximum at x = c, then g will have a maximum at x = c + 2. Similarly, if f intersects the x-axis at x = d, then g will intersect the x-axis at x = d + 2.

Therefore, Lin's reasoning is correct, and the graph of g will be the same as the graph of f, translated to the left by 2 units.

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An ellipse's form is determined by two locations inside the ellipse known as its foci.

The lengths of the main and minor axes of an ellipse may be used to calculate its foci.

The foci of an ellipse may be calculated using a variety of online calculators.

These calculators normally ask the user to enter the main and minor ellipse axes' lengths before calculating the foci's coordinates. Depending on the calculator in question, some may additionally ask for more details like the ellipse's eccentricity or center of rotation.

Understanding an ellipse's shape and characteristics requires knowing its foci since they are what characterize an ellipse.

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Answer:

x-5 that is the answer na

Answer:

u get it done?

Step-by-step explanation:

Answer:

Its 107,002

Step-by-step explanation:

Answer:

107022

Step-by-step explanation:

yeah totally... it was really hard (sarcasm)

Brainliest??? Plz!!!

The normal probability plot suggests the data is approximately normally distributed. The sample standard deviation of given data is 3.13. The 95% confidence interval for the population standard deviation is (1.85, 6.28). The investment manager's desire for a population standard deviation below 6% is validated by the confidence interval.

To construct a normal probability plot, we first need to sort the data in ascending order:

6.6, 6.7, 8.7, 9.6, 10.0, 10.3, 11.3, 12.4, 12.4, 13.8, 14.9, 15.9

Then we can plot the ordered data against the expected values of a normal distribution with the same mean and standard deviation as the sample. The plot shows that the points follow a roughly straight line, which suggests that the data is roughly normally distributed.

To determine the sample standard deviation, we can use the formula:

s = sqrt[(∑(xi - x)²) / (n - 1)]

where xi is the rate of return for each year, x is the sample mean, and n is the sample size.

Sample mean:

x = (13.8 + 15.9 + 10.0 + 12.4 + 11.3 + 6.6 + 9.6 + 12.4 + 10.3 + 8.7 + 14.9 + 6.7) / 12 = 11.433

Sample standard deviation:

s = sqrt[((13.8 - 11.433)² + (15.9 - 11.433)² + ... + (6.7 - 11.433)²) / (12 - 1)]

= 3.059

Therefore, the sample standard deviation is 3.059.

To construct a 95% confidence interval for the population standard deviation of the rate of return, we can use the formula:

CI = [(n - 1) * s² / χ²(α/2, n-1), (n - 1) * s² / χ²(1-α/2, n-1)]

where n is the sample size, s is the sample standard deviation, χ² is the chi-square distribution, and α is the level of significance (1 - confidence level).

For a 95% confidence level and 11 degrees of freedom (n - 1), α = 0.05/2 = 0.025. From the chi-square distribution table with 11 degrees of freedom, we can find the critical values as follows:

χ²(0.025, 11) = 2.201 and χ²(0.975, 11) = 23.337

Plugging in the values, we get:

CI = [(12 - 1) * 3.059² / 23.337, (12 - 1) * 3.059² / 2.201]

= [1.946, 26.557]

Therefore, we can say with 95% confidence that the population standard deviation of the rate of return is between 1.946 and 26.557.

The investment manager wants to have a population standard deviation for the rate of return below 6%. The confidence interval (1.946, 26.557) does not validate this desire, as it includes values above 6%. Therefore, based on the sample data, the investment manager cannot be confident that the population standard deviation is below 6%.

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Let B and C be non-negative real numbers, and A is a complex number, and it is given that 0 < B - 2 Re(A) + 12C for all complex numbers λ. To conclude that |A|² ≤ BC. If C = 0, then 0 < B - 2 Re(A). This can only be true if A = 0 (since Re(A) is a real number and B is positive).

So, in this case, we have A = 0 and C = 0. Therefore, the inequality is always true.Now, let's consider the case where C > 0. Then, choose λ = A/C. Since λ is a complex number, we have 0 < B - 2 Re(A/C) + 12C ⇒ 0 < B - 2 Re(A)/C + 12C. Simplifying this inequality by multiplying both sides by C, we get0 < BC - 2C Re(A) + 12C².

Dividing both sides by 4C², we get0 < (BC/4C²) - (Re(A)/C) + 3. Hence, we have(BC/4C²) > (Re(A)/C) - 3 = |Re(A)/C - 3| .(Note that the absolute value of a complex number is always a real number.)

Now, since |z| ≤ |Re(z)| + |Im(z)| for any complex number z, we have|A/C| = |λ| ≤ |Re(A/C)| + |Im(A/C)| ≤ |Re(A)/C| + |Im(A)/C| = |Re(A)/C| + |A|/(C|) .

Therefore, |Re(A)/C| ≥ |λ| - |A|/(C|) = |A/C| - |A|/(C|) .But, |A/C| = √(Re(A)/C)² + (Im(A)/C)² by the modulus formula.

Therefore, we have |Re(A)/C| ≥ √(Re(A)/C)² - |A|/(C|).

Squaring both sides, we get(Re(A)/C)² ≥ (Re(A)/C)² - |A|²/(C²|).

Therefore, we have proved that |A|² ≤ BC when 0 < B - 2 Re(A) + 12C for all complex numbers λ.

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This type of asymmetric information problem is known as adverse selection, where individuals with higher risks are more likely to purchase insurance. To mitigate adverse selection, the insurance company may need to implement risk assessment measures or gather more information about the individuals to accurately price the premiums.

a) The actuarially fair premium for each type can be calculated by considering the expected cost of a heart attack for each type of individual.

For unhealthy individuals, the probability of experiencing a heart attack is 5%. So, the expected cost for an unhealthy individual would be 5% of $50,000, which is $2,500.

For healthy individuals, the probability of experiencing a heart attack is 1%. Therefore, the expected cost for a healthy individual would be 1% of $50,000, which is $500.

Since there are an equal number of healthy and unhealthy individuals, the actuarially fair premium for each type would be the expected cost of a heart attack for that type. Hence, the actuarially fair premium for unhealthy individuals is $2,500, and for healthy individuals, it is $500.

b) If there is asymmetric information, where the insurance company does not know the individual's type, the company may not continue to sell insurance. This is because individuals who are aware that they are unhealthy have a higher probability of experiencing a heart attack, making them more likely to seek insurance. As a result, the insurance pool would be filled with a higher proportion of unhealthy individuals, leading to higher costs for the insurance company.

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Answer:

y=x+5

Step-by-step explanation:

So first you need to plug everything into the point-slope formula which is

y-y1=m(x-x1)

m being the slope and y1 and x1 being the point (5,10)

So once you plug it in it should look like this: y-10=1(x-5)

Now you solve it

First you need to distribute 1 in 1(x-5) which is (x-5)

Now you have y-10=x-5

Then you add 10 to both sides which is y=x+5

Your answer is y=x+5

Answer:

x = \(\frac{16}{3}\)

Step-by-step explanation:

Since the triangles are similar then the corresponding sides are congruent.

EF and BC are corresponding sides , then

8x - 3 = 5x + 13 ( subtract 5x from both sides )

3x - 3 = 13 ( add 3 to both sides )

3x = 16 ( divide both sides by 3 )

x = \(\frac{16}{3}\)

Answer:

Step-by-step explanation:

Step one:  

monthly earnings= $3680  

22% of the earnings is  

=22/100*3680  

=0.22*3680  

=$809.6  

Jose's take home will be

3680-809.6  

=$2870.4

Step two:

Required

percentage spent on rent and clothing

but the total cost of rent and clothing is

=775+86.12

=$861.12

percentage of rent and cloth is

=(861.12/2870.4)*100

=0.3*100

=30%

The percentage is 30% of the take home

Step-by-step explanation:

Overtime rate= r+50%= 1.5r

Regular hours= 800/r

Overtime hours= 240/1.5r

Total hours worked

Solution for the given Inequality 4(k − 5) + 12k ≥ − 4 is 1

Inequality simply means that two things aren't equal. One of the items could be inferior to, superior to, greater than, or equivalent to the other things. We often use algebraic operations like addition, subtraction, multiplication, and division to solve linear simple inequalities.

Here given Inequality is  4(k − 5) + 12k ≥ −4

We can simply solve the above inequality as given below

=> 4(k − 5) + 12k ≥ −4  

Multiply the terms and remove the bracket

=> 4k − 20 + 12k  ≥ −4  

Add 'k' terms  

=> 16k − 20 ≥ −4  

Add 20 on both sides

=>  16k − 20 + 20 ≥ −4 +20

=>  16k ≥ 16  

Divide by 16 into both sides

=>  16k/16 ≥ 16/16

=>  k ≥ 1

Therefore,

Solution for the given Inequality 4(k − 5) + 12k ≥ −4 is 1

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To find the length of \(PD\) in the given rectangle \(ABCD\), we can use the Pythagorean theorem.

The length of \(PD\) is \(\sqrt{} 79\)units.

Given that \(PA = 1\), \(PB = 7\), and \(PC = 8\), we need to find \(PD\).

Since \(P\) is inside the rectangle, we can consider the right-angled triangles \(PAB\), \(PBC\), and \(PCD\).

Using the Pythagorean theorem, we have:

In triangle \(PAB\):

\(PA^2 + AB^2 = PB^2\)

In triangle \(PBC\):

\(PB^2 + BC^2 = PC^2\)

In triangle \(PCD\):

\(PC^2 + CD^2 = PD^2\)

Since the rectangle has equal side lengths, \(AB = BC = CD\), so we can denote them as \(s\).

Now let's substitute the given lengths:

\(1^2 + s^2 = 7^2\)     (Equation 1)

\(7^2 + s^2 = 8^2\)     (Equation 2)

\(8^2 + s^2 = PD^2\)    (Equation 3)

Simplifying Equations 1 and 2, we have:

\(s^2 = 7^2 - 1^2\)      (Equation 4)

\(s^2 = 8^2 - 7^2\)      (Equation 5)

Solving Equations 4 and 5:

\(s^2 = 48\)

\(s^2 = 15\)

From Equation 5, we find that \(s^2 = 15\), so \(s = \sqrt{15}\).

Substituting this value into Equation 3, we can solve for \(PD\):

\(8^2 + (\sqrt{15})^2 = PD^2\)

\(64 + 15 = PD^2\)

\(79 = PD^2\)

Taking the square root of both sides, we find:

\(PD = \sqrt{79}\)

Therefore, the length of \(PD\) is \(\sqrt{79}\) units.

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Answer:

59.04

Step-by-step explanation:

If you were to make a right triangle, 15 would be the altitude (height), and 9 would be the base. You need the angle of elevation which is going the angle of the hypotenuse going upwards. (Bottom Left/Right Corner.) From that angle you need to solve for arctan (Used for solving the measure of angle.) Simply plug into your calculator arctan(15/9) to get the answer.

Answer:

The pet store has 30

Step-by-step explanation:

okay the ratio is 3:5 if you add them you get 8.

8 to get to 80 gets multiplied by 10.

so 3: 5 x 10 equals 30: 50

the 30 is geckos the 50 is lizards

\(\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h~~=height\\ a,b=\stackrel{parallel~sides}{bases~\hfill }\\[-0.5em] \hrulefill\\ a=5\\ b=7\\ A=24 \end{cases}\implies 24=\cfrac{h(5+7)}{2} \\\\\\ 24=\cfrac{h(12)}{2}\implies 24=6h\implies \cfrac{24}{6}=h\implies 4=h\)

Step-by-step explanation:

s = a+39

s+a = 180

a+39+a = 180

2a = 180-39

2a = 141

the angle = 70.5°

the supplement = 109.5°

The 3 angles in a triangle always add up to be 180.

Call the smallest angle as x
-> The 3 angles are x, 4/3x and 5/3x
-> 4x = 180
-> 45

So, the sizes of the 3 angles are 45, 60 and 75.

Answer:

yes

Step-by-step explanation:

-3x - 7y =2

Substitute the point into the equation

-3(4) -7(-2) =2

-12 +14=2

2=2

This is true so the point is a solution to the equation

Answer:

Sure, I  can help you with question 2.

Step-by-step explanation:

Original equation:

-3x-7y=2

Substitute x and y values

-3(4)-7(-2)=2

-12+14=2

2=2

This is true, thus (4, -2) is a solution to the given equation.

Lynn threw a ball farther because  24 yard line > 19 yard line

In this question we have been given Lynn and Trey each stood at a different location on a field and threw a ball.

Lynn threw to the 24-yard line and Trey threw to the 19-yard line.

We need to determine who threw a ball farther.

As we know 24 yards > 19 yards

So, Lynn threw a ball farther

Therefore, Lynn threw a ball farther because  24 yard line > 19 yard line

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In response to the question, we may say that Hence, when 88 is expression multiplied by 25, the new result is 113.

An expression in mathematics is a collection of representations, numbers, and conglomerates that mimic a statistical correlation or regularity. A real number, a mutable, or a mix of the two can be used as an expression. Mathematical operators include addition, subtraction, fast spread, division, and exponentiation. Expressions are often used in arithmetic, mathematics, and form. They are employed in the depiction of mathematical formulas, the solving of equations, and the simplification of mathematical relationships.

To discover the new value of 88 after it has been multiplied by 25, just add 25 to 88:

88 + 25 = 113 is the new value.

Hence, when 88 is multiplied by 25, the new result is 113.

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The maximum number of possible effects that could be tested in a 2x2x2 factorial design with 3 main effects, 3 two-way interactions, and 1 three-way interaction is 7.

In a 2 x 2 x 2 factorial design, we can test the following maximum number of possible effects:
Main effects:

There are 3 main effects in this design, one for each factor (A, B, and C). You would analyze the effect of each factor independently on the outcome variable.

Two-way interactions:

There are 3 possible two-way interactions that can be tested in this design: AxB, AxC, and BxC.

These interactions examine the combined effects of two factors on the outcome variable.
Three-way interactions:

There is 1 possible three-way interaction that can be tested in this design: AxBxC.

This interaction examines the combined effect of all three factors (A, B, and C) on the outcome variable.

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Answer:

B

Using gradient of two points and equation of a straight line graph.

Answer:

Step-by-step explanation:

The given inequality can be written as 2m - 5/4 ≤ -7/8.

An inequality -7/8 is at most the difference of twice a number m and 5/4 which is 2m - 5/4 ≤ -7/8.

Difference of twice a number 'm' and 5/4 is 2m - 5/4 and this is at most -7/8 means less than or equal to.

∴ The given statement can be written as 2m - 5/4 ≤ -7/8

Answer:

2m - 5/4 ≤ -7/8

Step-by-step explanation:

hope this helps

In the analysis of variance procedure (ANOVA), "factor" refers to the independent variable, which is manipulated in order to observe its effect on the dependent variable.

In the analysis of variance procedure (ANOVA), factor refers to:
b. the independent variable

In ANOVA, a factor is an independent variable that is manipulated or controlled to investigate its effect on the dependent variable. Different levels of a factor represent the variations in the independent variable being tested. The different levels of a treatment are often created by manipulating the factor.
In contrast, independent variables are not considered dependent on other variables in various experiments. [a] In this sense, some of the independent variables are time, area, density, size, flows, and some results before the affinity analysis (such as population size) to predict future outcomes (dependent variables).

In both cases it is always a variable whose variable is examined through a different input, statistically also called a regressor. Any variable in an experiment that can be assigned a value without assigning a value to another variable is called an independent variable.

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(a) The domain closed and bounded.

(b) The domain bounded.

(c) The domain closed.

(d) The domain bounded.

(e) The domain closed and bounded.

(f) The domain closed and bounded.

In this question, we have been given some domains.

We need to check which domains are closed and which are bounded.

A domain of function is said to be closed if the region R contains all boundary points.

A bounded domain is nothing but a domain which is a bounded set.

(a) {(x,y)∈R2:x^2+y^2≤1}

The domain of x^2+y^2≤1 contains set of all points (x, y) ∈R2

so, the domain closed and bounded.

(b) {(x,y)∈R2:x2+y2<1}

The domain of x^2+y^2 < 1 contains set of all points (x, y) ∈R2

so, the domain is bounded.

(c) {(x,y)∈R2: x ≥ 0}

The domain of x ≥ 0 is R2 - {x < 0}

So, the domain is closed.

(d) {(x, y) ∈ R2 : x > 0,y > 0}

The domain is R2 - {(x, y) ≥ 0}

So, the domain is bounded.

(e) {(x, y) ∈ R2 : 1 ≤ x ≤ 4, 5 ≤ y ≤ 10}

The domain is closed and bounded.

(f) {(x,y)∈R2:x>0,x^2+y^2≤10}

The domain is closed and bounded.

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