A 8-inch candle burns down in 4 hours. Assuming the candles are the same thickness and make (that is, directly proportional), how long would it take a 12-inch candle to burn down?

Under the null hypothesis, the expected number of strongly opposed juniors is 50.

The term null hypothesis refers the typical statistical theory which suggests that no statistical relationship and significance exists in a set of given single observed variable, between two sets of observed data and measured phenomena.

Here we have given that suppose we wish to test the null hypothesis that there is no association between student year in school and student opinion.

And we need to find under the null hypothesis, what is the expected number of strongly opposed juniors.

Here let us consider there are 100 students.

Then according to the given statement, there is no association between student year in school and student opinion.

Which refers that half of them are supported and half of them are opposed.

Therefore, the expected value is 50.

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The equilibrium price is 12 and the equilibrium quantity is 400.

It should be noted that on order to fund equilibrium price and quantity, we've to equate the quantity supplied and demanded. This will be:

Qd = 1060 - 55p

Qs = -200 + 50p

Qd = Qs

1060 - 55p = -200 + 50p

Collect like terms

-55p - 50p = -200 - 1060

-105p = -1260

Divide

p = 1260 / 105

p = 12

The equilibrium price is 12

Equilibrium quantity = -200 + 50p

= -200 + 50(12)

= -200 + 600

= 400

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Answer: 2280000000

Step-by-step explanation: Yes, I know it is a long number, but 10 cubed = 10 x 10 x 10, which simplified, would be 100 x 10, which is 1000. So, now you do 2.4 x 1000 to get 2400. Now you take that and multiply that by 9.5. Then, you do 10 to the 5th power, which is 100000. Now, you connect it all together, to get 2280000000. Hopefully, I did it right, if not I am sorry :/

The system of equations that should be used is the second one:

-15 = 5A

10 = -2A + B

Here we have the following equation:

[tex]\frac{-15x + 10}{(5x - 2)^2} = \frac{A}{5x - 2} + \frac{B}{(5x - 2)^2}[/tex]

If we multiply and divide the first therm in the right side by (5x - 2) we will get:

[tex]\frac{-15x + 10}{(5x - 2)^2} = \frac{A*(5x - 2)}{(5x - 2)^2} + \frac{B}{(5x - 2)^2}[/tex]

The numerators must be equal, then we can write:

-15x + 10 = A*(5x - 2) + B

-15x + 10 = A*5x - 2A + B

Then we can write two equations, one that has x as a factor and other that does not, these are:

-15 = 5A

10 = -2A + B

That is the system of equations.

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Answer:

B.

Step-by-step explanation:

took unit test

Answer:

The measure of each interior angle of a regular polygon with 7 sides is about 128.6.

Step-by-step explanation:

hope this helps

Answer:

d. 4x − 5y = 27x + 6y = 10

I hope my answer helps you.

Answer:

Step-by-step explanation:

you get a tutor

" BRAINLY TUTOR "

press that link

Answer:

1 Green Sack = 2

1 Red Sack = 2

1 Elf Mask = 8

1 Christmas List = 5

Step-by-step explanation:

g=Green sack

r= Red sack

e = Elf mask

c = Christmas list

Answer:

804.063 is the answer

Step-by-step explanation:

BRANLIEST

To calculate the amount of commission that Nancy Bell earned last month, we can use the following formula:

Commission = Sales * Commission Rate

In this case, the sales are $59,400 and the commission rate is 14%, so the commission is:

Commission = $59,400 * 14% = $8,356

To calculate Nancy's gross pay, we can add her salary to her commission:

Gross Pay = Salary + Commission

Gross Pay = $1,710 + $8,356 = $10,066

Therefore, Nancy earned $8,356 in commission and her gross pay was $10,066.

Answer:

x=5, y=2 | Equations: 4x+y=22 (or see below) and 12x-5y=50

Step-by-step explanation:

Here's my attempt:

First Equation:

Because triangles ΔSTU and ΔXYZ are congruent, then we can say that:
m∠S = m∠X
m∠T = m∠Y
m∠U = m∠Z

We know that m∠X = 130°, and that m∠X = m∠S, so m∠S = 130°

We also know that the sum of angles in a triangle = 180°

We also know the rest of the angles in ΔSTU: 28° and (4x+y)°

So, we can say that ∠S + ∠T + ∠U = 130+28+4x+y = 180 (we can remove the degree sign)

Now, you can either enter this as it is or simplify it: ❗

130+28+4x+y=180

4x+y+158=180

4x+y=22

Second Equation:

We can do the same thing as for the first equation and get the angles of ΔXYZ:

∠X = 130, ∠Y = 8x-6y, ∠Z = 4x+y

Then, add them and set it to 180:

130+8x-6y+4x+y=180

Simplify:

12x-5y+130=180

12x-5y=50

To solve for x and y:

Now, we have to solve the systems.

Let's start with the first one:

4x+y=22

Isolate y:

y=22-4x (Equation 1)

Then, we plug it into the second equation:

12x-5y=50

12x-5(22-4x)=50

12x-110+20x=50

32x=160

x=5

So we got x, but to find y, we need to plug in x into Equation 1 (where we isolated y

y=22-4x

y=22-4(5)

y=22-20

y=2

We have both our x and y values

That was my attempt, hope it helped!

for a binomial random variable x, it can only takes on two possible values, 0 or 1 is True

A binomial random variable is a discrete random variable, which means that it can only take on certain values, in this case 0 or 1. This means that the answer to the question is true. A binomial random variable is the sum of two independent Bernoulli random variables, where each Bernoulli random variable has a probability of success equal to the probability of success for the binomial random variable. This means that the binomial random variable is a summation of two Bernoulli random variables, and can only take on values of 0 or 1.

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Answer:

−3.5, −0.3, 0.6, 3.3

Step-by-step explanation:

This is because negative numbers are less than positive numbers, and numbers with a smaller absolute value are less than numbers with a larger absolute value. Therefore, the smallest number in the given list is −3.5, followed by −0.3, 0.6, and finally 3.3. When we put the numbers in this order, we get the correct order from least to greatest.

The midrange for the data items in the given frequency distribution is 30.5.

Generally, To find the midrange for the data items in the given frequency distribution, we need to calculate the midpoint of each score range. The midpoint of a range is calculated by taking the average of the lower and upper bounds of the range.

For the first score range (29-30), the lower bound is 29 and the upper bound is 30, so the midpoint is (29 + 30) / 2 = 29.5.

For the second score range (30-31), the lower bound is 30 and the upper bound is 31, so the midpoint is (30 + 31) / 2 = 30.5.

Therefore, the midrange for the data items in the given frequency distribution is 30.5.

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Using the concept of ratios, there is 15 more blue balls

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity. Ratios can be classified into two types. One is part to part ratio and the other is part to whole ratio.

The ratio of white to blue balls is 3:5

The number of white bulbs is 45

let's calculate the number of blue balls to determine the total number of balls.

3 + 5 = 8;

(3 / 8) * x = 45

3x = 45 * 8

3x = 360

x = 360 / 3

x = 120

The total number of balls is 120.

The number of blue balls ;

5/8 * 120 = 75

To change ratio to 1 : 3 in respect to white and blue balls;

1 + 3 = 4

The number of blue balls can be calculated as;

3 /4 * 120 = 90

The number of blue balls now is 90 balls

There will be 90 - 75 =  15 balls

There's 15 more blue balls

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Answer:

1) 35.07

2) 123.6

3)3.9

4) 102.83

5)97.5

6)6.93

The probability that a randomly chosen person from the given population makes a purchase is [tex]\left(\begin{array}{ccc}p\\1\end{array}\right)[/tex] *0.25.

We can calculate the probability in the following way,

Let the total population of visitors visiting to the online shopping site be P.

The estimated odds of visitors making a purchase on the online shopping website are 0.25

P(E)=0.25 and n=P

We know that the probability mass function is also known as p.m.f. of Binomial Distribution with parameters n and P.

P(X=x) = [tex]\left(\begin{array}{ccc}n\\x\end{array}\right){p^x}[/tex]* [tex](1-p)^{(1-x)}[/tex] ; 0 < p < 1 And x=0,1,2,3,...

Probability of one randomly chosen visitor making a purchase= P(x=1)

=[tex]\left(\begin{array}{ccc}p\\1\end{array}\right)[/tex] 0.25^1 * 0.75^0

=[tex]\left(\begin{array}{ccc}p\\1\end{array}\right)[/tex]*0.25

Therefore, the Probability of a random visitor making a purchase depends on the value of the population and is equal to [tex]\left(\begin{array}{ccc}p\\1\end{array}\right)[/tex] * 0.25

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Answer: B

Step-by-step explanation: TRUST

The horizontal component of the force vector is 260 pounds, and the vertical component is 150 pounds. (Option B).

To find the horizontal and vertical components of the force vector, we can use trigonometry. The horizontal component is the force acting in the direction parallel to the ground (x-axis), and the vertical component is the force acting in the direction perpendicular to the ground (y-axis).

Given that the force is 300 pounds and makes a 30° angle with the ground, we can calculate the components as follows:

Horizontal component (F_horizontal) = Force * cos(angle)

Vertical component (F_vertical) = Force * sin(angle)

Inserting in the values:

Horizontal component (F_horizontal) = 300 pounds * cos(30°)

Vertical component (F_vertical) = 300 pounds * sin(30°)

Now, let's calculate:

Horizontal component (F_horizontal) = 300 pounds * 0.866 (rounded to 3 decimal places, cos(30°) ≈ 0.866)

F_horizontal ≈ 259.8 pounds

Vertical component (F_vertical) = 300 pounds * 0.5 (rounded to 3 decimal places, sin(30°) ≈ 0.5)

F_vertical ≈ 150 pounds

Therefore, the required components of the force vector are approximately 260 pounds and 150 pounds.

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Answer:

c 5

Step-by-step explanation:

2=10

1=5

5+5=10

hope this helps by now

Answer:

Blue: 1/5

Step-by-step explanation:

To find the rate of change you use your slope formula which is y2-y1 over x2-x1.

You'd set your equation and you'd get 4-2 over 20-10. You solve and you get 2/10 and because it isn't one of the answer choices you have to simplify it. To simplify it you find the common number they both share and they both share 2 so you divide both by 2. 2 divided by 2 is 1 and 10 divide by 2 is 5. So then the rate of change or slope is 1/5.

all squares are parallelogram but all parallelogram are not squares

Answer: 890 downloads the high-quality version

Step-by-step explanation:

Let x be the number of downloads of the high-quality version

1420-x be the number of downloads of the standard version

So, we have the equation

4.5x + 2.7(1420-x) = 5436

4.5x + 3834 - 2.7x = 5436

1.8x + 3834 = 5436

Subtract 3834 on both sides

1.8x = 1602

x = 890

13) y= 3/5 x +2

14) y= x + 2

Answer:

The end behavior of the function f(x) = 2^-xsin3x is that it approaches 0 as x approaches positive infinity and approaches infinity as x approaches negative infinity.

Step-by-step explanation:

Answer:

x=-4/3

Step-by-step explanation:

Answer:

To have 4 times as many apples as bananas, Amadou could have bought 4 apples for every 1 banana, or 8 apples for every 2 bananas, or 16 apples for every 4 bananas.

4 apples : 1 banana

8 apples : 2 bananas

16 apples : 4 bananas

We can use the fact that the total cost of the apples and bananas was $9 to determine the number of apples and bananas that Amadou bought. Since each apple costs $1, Amadou bought 9 apples if he bought no bananas, or 7 apples if he bought 2 bananas, or 5 apples if he bought 4 bananas.

9 apples : 0 bananas

7 apples : 2 bananas

5 apples : 4 bananas

Therefore, the possible combinations of apples and bananas that Amadou could have bought are 9 apples and 0 bananas, 7 apples and 2 bananas, or 5 apples and 4 bananas.

Therefore, in order for them to enjoy a party, they must be rewarded a minimum of 26 extra times.

The equals sign (=) must appear in an equation. You can think of an equation as having a left and a right side since there will be a mathematical expression on either side of it. Consider an equation to be a set of scales. Although you can use different amounts on either side, for it to be solved, each side must be equally balanced. An unknown will always be present in an algebraic equation. This is symbolized by a symbol, such x, y, or z.

Here,

Given: Given: To reward her students for good behavior, Mrs. Morton fills a marble jar with three marbles.

if there are 24 marbles in the jar. When r denotes the quantity of additional rewards for the class, then the necessary equation is 24 + 3r 100.

If we can figure it out, we'll obtain the minimum number of marbles the jar holds—24.

In order to solve the problem, take 24 away from both sides.

=> 3r ≥100 -24

=> 3r  ≥76

=> r  ≥76/3

=> r ≥ 25.33

=> r≈ 26

Therefore, in order for them to enjoy a party, they must be rewarded a minimum of 26 extra times.

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What would happen is the result would increase by a factor of 2. The result of dividing the fractions will be 4.

From the question, we are to determine what would happen if we divide by 2/5 instead of 4/5

That is,

We are to carry out the division operation

1 3/5 ÷ 2/5

Evaluating

1 3/5 ÷ 2/5

8/5 ÷ 2/5

8/5 × 5/2

= 8/2

= 4

The answer increased by a factor of 2.

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Vertical angles are two angles that are opposite each other and share a common vertex. Adjacent angles are two angles that share a common side and vertex.

To find the measure of an unknown angle using these relationships, you can use the vertical angle theorem which states that if two angles are vertical, then they have equal measure. For example, if angle A and angle B are vertical angles, then angle A = angle B.

Example:

Given: Angle A = 40°

Find the measure of angle B

Solution:

Since angle A and angle B are vertical angles, then angle A = angle B

Therefore, the measure of angle B = 40°

An angle is created when two straight lines or rays intersect at the same point. The point where all points converge is known as an angle's vertex. The Latin word angulus, which meaning "corner," is where the term "angle" comes from.

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