The ratio of students who wear glasses to the total class is 2:5. If 5 of the students who didn’t wear glasses now do,what is the ratio of students who wear glasses to those who don’t?

Let X be uniformly distributed on [10, 100). By using Risk Adjusted Premium Principle

(a) Tx =  106.9615242

(b) Tx =  314.8076211

We can calculate Tx using the formula:

Tx = E[X] + p * σ[X]Where E[X] is the expected value of X, p is the risk index, and σ[X] is the standard deviation of X.For a uniformly distributed random variable X on the interval [a, b), the expected value is:

E[X] = (a + b) / 2And the standard deviation is:

σ[X] = √((b - a)² / 12)For X uniformly distributed on [10, 100), we have:

a = 10b = 100

So:

E[X] = (10 + 100) / 2 = 55σ[X] = √((100 - 10)² / 12) = 25.98076211

Now we can calculate Tx for each risk index:

(a) For p = 2:Tx = 55 + 2 * 25.98076211 = 106.9615242

(b) For p = 10:Tx = 55 + 10 * 25.98076211 = 314.8076211

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The zeros of the polynomial p(x)=4x^(4)-15x^(3)+9x^(2)+16x-12 are approximately -0.764, 0.621, 2.572, and 3.071.

To find the zeros of the given polynomial p(x)=4x^(4)-15x^(3)+9x^(2)+16x-12, we need to solve the equation p(x)=0.

First, let's try to factor the polynomial. We can use the Rational Root Theorem to find the possible rational zeros of the polynomial. The possible rational zeros are ±1, ±2, ±3, ±4, ±6, and ±12.

Let's try each of these possible zeros until we find one that makes the polynomial equal to zero.

When we plug in x=1, we get p(1)=4(1)^(4)-15(1)^(3)+9(1)^(2)+16(1)-12=2, which is not equal to zero.

When we plug in x=2, we get p(2)=4(2)^(4)-15(2)^(3)+9(2)^(2)+16(2)-12=20, which is not equal to zero.

When we plug in x=3, we get p(3)=4(3)^(4)-15(3)^(3)+9(3)^(2)+16(3)-12=90, which is not equal to zero.

When we plug in x=-1, we get p(-1)=4(-1)^(4)-15(-1)^(3)+9(-1)^(2)+16(-1)-12=-30, which is not equal to zero.

When we plug in x=-2, we get p(-2)=4(-2)^(4)-15(-2)^(3)+9(-2)^(2)+16(-2)-12=4, which is not equal to zero.

When we plug in x=-3, we get p(-3)=4(-3)^(4)-15(-3)^(3)+9(-3)^(2)+16(-3)-12=-162, which is not equal to zero.

So, none of the possible rational zeros are actually zeros of the polynomial.

Therefore, the polynomial does not have any rational zeros. The zeros of the polynomial are irrational or complex numbers.

To find these zeros, we need to use a different method, such as the Quadratic Formula or synthetic division.

Unfortunately, these methods are beyond the scope of this answer. However, you can use a graphing calculator or an online polynomial solver to find the approximate values of the zeros.

The approximate zeros of the polynomial are -0.764, 0.621, 2.572, and 3.071.

So, the zeros of the polynomial p(x)=4x^(4)-15x^(3)+9x^(2)+16x-12 are approximately -0.764, 0.621, 2.572, and 3.071.

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Answer:

x-2

Step-by-step explanation:

If you start of with X, you don't know what the value of X is, so you take away two from what we label as X

Answer:

x intercept

Step-by-step explanation:

please give brainliest

The business can anticipate losing roughly $55.20 as a result of subpar inspections.

Probability is a measure of the likelihood or chance of an event occurring. It is usually expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

If the bottles pass inspection with probability 98/100, then they fail inspection with probability 1 - 98/100 = 2/100 = 0.02.

Out of 800 bottles of laundry detergent, we can expect about 0.02*800 = 16 bottles to fail inspection.

The cost to the company for each failed bottle is $3.45, so the total cost to the company is approximately 16*$3.45 = $55.20.

Therefore, the company can expect to lose about $55.20 due to failed inspections.

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14 students were on the bus when it left River Street School.

To find out how many students were on the bus when it left River Street School, we need to work backwards from the end of the route and account for all the students that were picked up and dropped off along the way.

At the last stop, seven students were dropped off, leaving only the driver aboard. This means that there were 7 students on the bus before the last stop.

Before that, five kindergarten students boarded the bus at the Centerville after-school-program, which means that there were 7 - 5 = 2 students on the bus before the kindergarten students boarded.

Before that, ten students got off at the Centerville after-school-program, which means that there were 2 + 10 = 12 students on the bus before they got off.

Before that, the bus made six stops and let off one student at each stop, which means that there were 12 + 6 = 18 students on the bus before those stops.

Before that, three students got off at one stop, which means that there were 18 + 3 = 21 students on the bus before that stop.

Before that, the bus made four stops and dropped off two students at each stop, which means that there were 21 + (4 x 2) = 29 students on the bus before those stops.

Finally, before that, the bus picked up 15 students at the Park School, which means that there were 29 - 15 = 14 students on the bus when it left River Street School.

14 students were on the bus when it left River Street School.

Starting from the end of the route and working backwards, we accounted for all the students that were picked up and dropped off along the way. By subtracting the number of students that were picked up from the number of students that were on the bus at each stop, we were able to find out how many students were on the bus when it left River Street School.

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Answer:

$35,734.12

Step-by-step explanation:

To determine the amount Joe must deposit now to have $75,000 in 18 years, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

where:

A is the future value we want to have ($75,000 in this case)

P is the present value we need to deposit now

r is the annual interest rate (3.75%)

n is the number of times interest is compounded per year (12 for monthly compounding)

t is the number of years (18)

Substituting the given values, we get:

$75,000 = P(1 + 0.0375/12)^(12*18)

Simplifying the exponent:

$75,000 = P(1.003125)^216

Dividing both sides by (1.003125)^216:

P = $75,000 / (1.003125)^216

P ≈ $35,734.12

Therefore, Joe must deposit approximately $35,734.12 now to have $75,000 in 18 years at an interest rate of 3.75% compounded monthly.

Brendan is currently 37 years old.

To solve this problem, we can use algebra. Let's let V represent Valerie's age and B represent Brendan's age. We can set up the following equations based on the information given in the question:
B = V + 5 (Brendan is 5 years older than Valerie)
B + 6 + V + 6 = 81 (In 6 years, the sum of their ages will be 81)
Simplifying the second equation, we get:
B + V + 12 = 81
B + V = 69
Substituting the first equation into the second equation, we get:
V + 5 + V = 69
2V = 64
V = 32
Now that we know Valerie's age, we can use the first equation to find Brendan's age:
B = 32 + 5
B = 37
So Brendan's current age is calculated to be 37 years

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The requried value of the first quartile is 4.5.

Interquartile range (IQR): The IQR is the range of the middle 50% of values in a data set. To calculate the IQR, we first need to find the quartiles of the data set.

To find the first quartile (Q1), we need to arrange the given values in ascending order and then find the median of the lower half of the values.

The given values arranged in ascending order are:

3, 6, 8, 11

The lower half of the values are:

3, 6

The median of the lower half is:

(Q1) = (3 + 6)/2 = 4.5

Therefore, the value of the first quartile is 4.5.

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The angle BAC will always be a right angle (90 degrees).

Given a circle centered at point O and any three points A, B, and C on the circle, the angle BAC will always be half of the corresponding central angle BOC.

If we keep points B and C fixed and allow point A to move around the circle,

then the angle BAC will stay the same.

If points B and C are endpoints of the diameter of the circle, then the angle BAC will always be a right angle (90 degrees).

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The values of the trigonometric functions for angle C in the given right-angled triangle are

[tex]sin(C) = 0.6 \\ cos(C) = 0.8 \\ tan(C) = 0.75 \\ csc(C) = 1.7\\ sec(C) = 1.25 \\ cot(C) = 1.3[/tex]

What is Pythagoras theorem?

According to Pythagorean theorem to find the length of the other leg of the triangle,

[tex]a^2 + b^2 = c^2[/tex] where a and b are the legs of the triangle and c is the hypotenuse.

So, in this case,

[tex]a^2 + 30^2 = 50^2 \\ a^2 + 900 = 2500 \\ a^2 = 1600 \\ a = 40

[/tex]

Here given all three sides of the triangle.

We need to find the values of the trigonometric functions:

[tex]sin(C) = \frac{opposite \: leg}{hypotenuse }= \frac{30}{50} = 0.6 \\ cos(C) = \frac{adjacent}{hypotenuse} = \frac{40}{50} = 0.8 \\ tan(C) = \frac{opposite}{adjacent} =\frac{ 30}{40} = 0.75 \\ csc(C) =\frac{ hypotenuse}{opposite} = \frac{50}{30} = 1.666... \\ sec(C) = \frac{hypotenuse}{adjacent} = \frac{50}{40} = 1.25 \\ cot(C) = \frac{adjacent}{opposite} = \frac{40}{30} = 1.333...

[/tex]

Therefore, the values of the trigonometric functions for angle C in the given right-angled triangle are

[tex]sin(C) = 0.6 \\ cos(C) = 0.8 \\ tan(C) = 0.75 \\ csc(C) = 1.666... = 1.7\\ sec(C) = 1.25 \\ cot(C) = 1.333... = 1.3[/tex]

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The amount of time it will take them when working together is 12/7 hours, or approximately 1.71 hours.

If Harry can paint a room in 3 hours, and Kerry can paint it in 4 hours, then we can use the formula for combined work (work rate) to find how long it will take if they work together. The formula is:

1/t = 1/t₁ + 1/t₂, where t is the time it takes for them to complete the work together, t₁ is the time it takes for Harry to complete the work alone, and t₂ is the time it takes for Kerry to complete the work alone.

Plugging in the values we have, we get:

1/t = 1/3 + 1/4.

Multiplying both sides of the equation by 12t, we get:

12 = 4t + 3t.

Simplifying, we get:

12 = 7t.

Dividing both sides of the equation by 7, we get:

t = 12/7.

Therefore, it will take Harry and Kerry 12/7 hours, or approximately 1.71 hours, to paint the room together.

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Answer: finish the question if you need help

Step-by-step explanation:

Answer: 15 gallon for 26.99

Step-by-step explanation:

15 (gallons) x 2.10 ($ per gallon) = 31.5

therefore cheaper to buy 15 gallons

a) The time it takes for the ball to hit the ground is given as follows: 2.5 seconds.

b) The time it takes for the maximum height is of: 1 second.

c) The maximum height is of: 36 feet.

d) The equation would be of: h(t) = 30 + 32t - 16t².

The quadratic function for the ball's height is given as follows:

h(t) = 20 + 32t - 16t².

In which:

The coefficients are given as follows:

a = -16, b = 32, c = 20.

Then the discriminant is of:

D = b² - 4ac

D = 32² - 4 x (-16) x 20

D = 2304.

The positive root gives the time it takes for the ball to hit the ground, as follows:

t = (32 + sqrt(2304))/32

t = 2.5 seconds.

The time to reach the maximum height is the t-coordinate of the vertex, hence:

t = -b/2a

t = -32/-32

t = 1 second.

The maximum height is of:

h(1) = 20 + 32 - 16

h(1) = 36 feet.

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\(\|v\|=\sqrt{50}\)

The norm of vector \(v\) is \( \|v\|=\sqrt{4^2 + \sqrt{3}^2 + \sqrt{6}^2}=\sqrt{50} \). Therefore, the answer is \(\|v\|=\sqrt{50}\).

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1) The radius of the small circle r is 5√5 and 2) The shaded area will be 13.5π cm².

Area of circle A = 125 π, Radius of circle R = 15, We need to find the radius of the small circle r. By comparing both circles,Area of circle A = πR² 125π = π × 15² 125π = π × 225, 125π = 225 πr², r² = (125π) / πr² = 125r = √125r = 5√5. Hence, the radius of the small circle r is 5√5.

A circle of radius 9 cm with a sector of angle 60° cut out. We know that the area of the circle is given by ,Area of circle = πr² Where, r = 9 cm Area of circle = π × 9²= π × 81= 81 π. Since we have cut a sector of 60°,The remaining angle = 360° - 60° = 300° Fraction of the circle left = (300/360) = 5/6

Therefore,The area of the circle left = (5/6) × 81 π= 67.5 π. The area of the shaded portion = (Area of circle) – (Area of the circle left) Area of the shaded portion = 81 π – 67.5 π= 13.5 π cm², Hence, the shaded area is 13.5π cm².

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Answer:

Step-by-step explanation:

There is no algebraic expression in the question????

a) Area of the base is approximately 182 square inches.

b) Volume of wax in the candle is approximately 912 cubic inches.

What is circumradius of a regular polygon?

The distance between any vertex and the center of a regular polygon is its radius. Every vertex will have the same situation. The polygon's radius is also equal to the diameter of the circle that encircles each vertex.

a) Since the base of the candle is a regular polygon with 12 sides, it can be considered a dodecagon. Each angle of a regular dodecagon measures:

(12 - 2) x 180° / 12 = 150°

The distance from one vertex to the opposite vertex, measured through the center of the base, is the same as the diameter of the circumcircle of the dodecagon. We can use the formula for the circumradius of a regular polygon to find this distance:

r = s / (2 sin(180°/n))

where r is the circumradius, s is the side length, and n is the number of sides. Since the dodecagon is regular, all the side lengths are equal, so we can just use one of them.

s = 2 in (approximately, given in the problem)

r = 2 / (2 sin(180°/12)) = 2 / (2 sin(15°)) ≈ 7.88 in

The area of the dodecagon base is:

[tex]A = (12/2) r^2 sin(360/12) \\\\ A = 6 * 7.88^2 x sin(30) \\\\A = 182.42 in^2[/tex]

So the area of the base is approximately 182 square inches.

b) The volume of the candle is equal to the area of the base multiplied by the height:

V = A x h

where A is the area of the base and h is the height of the prism.

The height of the candle is given as 5 in, and we just calculated the area of the base as approximately 182.42 in^2. Therefore, the volume of the candle is:

[tex]V = 182.42\ in^2 * 5 \ in\\\\ V= 912.1 in^3[/tex]

So the volume of wax in the candle is approximately 912 cubic inches.

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A solution to the given system of linear equations is (2, 6).

In order to to graph the solution to the given system of equations on a coordinate plane, we would use an online graphing calculator to plot the given system of equations and then take note of the point of intersection;

y = 4x - 2      ......equation 1.

y = 1/2(x) + 5  ......equation 2.

Next, we would use an online graphing calculator to plot the given system of equations as shown in the graph attached below.

Based on the graph (see attachment), we can logically deduce that the solution to the given system of equations is the point of intersection of the lines on the graph representing each of them, which lies in Quadrant I and it is given by the ordered pair (2, 6).

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The f(h \((-3)]\) = -5.

To find f(h \((-3)]\), we need to first find the value of h \((-3)]\) and then plug that value into the function f(x).

Step 1: Find h \((-3)]\)
h(x) = x^2 + 6x + 8
h(-3) = (-3)^2 + 6(-3) + 8
h(-3) = 9 - 18 + 8
h(-3) = -1

Step 2: Plug the value of h(-3) into the function f(x)
f(x) = 5x
f(h(-3)) = 5(-1)
f(h(-3)) = -5

Therefore, f(h \((-3)]\) = -5.

I hope this helps! Let me know if you have any further questions.

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Answer: 10,210$

Step-by-step explanation:
Its simple really. The formula is 800 x 2.65 x 1. 10,210.

Use this next time, good luck :)

Answer: $879.50

Step-by-step explanation:

The simple interest formula is I = prt

Plug values in:

(Percent move decimal over 2 and time has to be in years, so 3 years and 9 months is 3.75 years)

I = (800)(0.0265)(3.75)

I = (21.2)(3.75)

I = 79.5

Add the interest to the principle:

800 + 79.5 = $879.50

Hope this helps!

The total interest he paid on this loan is $1,507.69

Vifredo bought a new boat for $14,200. He paid $2,500 for the down payment and financed the remaining amount for 48 months at an APR of 5.6%.

The total interest he paid on this loan is $1,507.69 (Round to the nearest cent as needed.)

To calculate the total amount that Vifredo will pay for his boat after 48 months, we need to add the amount he paid for the down payment to the total amount he will pay in 48 months at an APR of 5.6%.Vifredo's loan amount = $14,200 - $2,500 = $11,700

Calculating total amount for 48 months:Total amount = Monthly payment × Number of months Monthly payment can be calculated using the formula:PMT = (P × r) / (1 - (1 + r)^-n)where,PMT = Monthly paymentP = Principal amountr = Rate of interest per month (APR / 12) = 5.6% / 12n = Number of months= 48In our case,P = $11,700r = 5.6% / 12n = 48PMT = (11700 × (5.6 / 12)) / (1 - (1 + (5.6 / 12))^-48) = $267.34Total amount for 48 months = 267.34 × 48 = $12,840.16The total interest he paid on this loan is $1,507.69 (Round to the nearest cent as needed.)Therefore, the total amount Vifredo will pay for his boat is $2,500 (down payment) + $12,840.16 (total amount for 48 months) = $15,340.16.

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Answer:

Than thats great

The equation v^(2)-2v+1=0 can be solved by factoring. Factoring is a process of breaking down a number or expression into its component parts. In this case, we can factor the equation into (v-1)(v-1), which is equal to zero. Therefore, the solution to the equation is v = 1.

Factoring is a useful tool for solving equations. By factoring, we can break a complex equation into simpler parts, which makes it easier to solve. It can also be used to identify solutions that are not obvious by looking at the equation. It is a valuable skill to have in mathematics, as it can be used to solve many equations quickly and efficiently. It is also an important skill to have when working with polynomials, as it allows us to identify the zeros of a polynomial.

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y = 3sin(πt). This function models the oscillation by representing the distance in centimeters from the equilibrium position as the sine of π multiplied by the time in seconds.

y = 3sin(πt). This function can be used to model the oscillation because it represents the distance in centimeters from the equilibrium position as the sine of π multiplied by the time in seconds. This means that for any given value of t, the value of y will be the sine of π multiplied by t, which will correspond to a certain distance from the equilibrium position. As the oscillation has a frequency of 1 cycle per second, the value of t will increase linearly, and the value of y will oscillate between a maximum and a minimum value. As the distance between the maximum and minimum points of the oscillation is 3 centimeters, the maximum and minimum values of y will be 3 when t is an integer multiple of π. Therefore, the function y = 3sin(πt) can be used to accurately model the oscillation.

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Answer: A quarter or 1/4 rotation is 90°.

Step-by-step explanation:

A full rotation is 360 degrees, usually written as 360°. Half a rotation is then 180° and a quarter rotation is 90°.

The value of the fraction expression after rationalise the denominator will be √33.

When the relevant components and basic processes of a numerical method are given values, the expression's result is the result of the computation it depicts.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The expression is given below.

⇒ [(6 + √3)(6 - √3)] / √33

Simplify the expression, then we have

⇒ [(6 + √3)(6 - √3)] / √33

⇒ [6² - (√3)²] / √33

⇒ [36 - 3] / √33

⇒ 33 / √33

⇒ √33

The value of the fraction expression after rationalise the denominator will be √33.

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Answer:

Step-by-step explanation:

first you find the numbers that go with the numbers like base times height

times length then you add it all up read this two times to understand

Answer: [tex]\sqrt2[/tex] or 1.41

The amount he would pay back in total is $126,000.

The amount he would pay back is the sum of the amount borrowed and the interest rate on the loan.

Amount that would be paid back = amount borrowed + interest

Simple interest is a linear function of the amount borrowed, interest rate and the duration of the loan. The simple interest is the cost of borrowing.

Interest = amount borrowed x interest rate x time

$90,000 x 0.04 x 10 = $36,000

Amount that would be paid back = interest + amount that is borrowed

=  $36,000 + $90,000 = $126,000

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