30 POINTS TO WHO EVER ANSWER THIS QUESTION!!!!

Answer: Utmostly Irrefutably true my good sir!

Answer:

The constant of proportionality is:

Step-by-step explanation:

We know that when y varies directly with x, we get

y ∝ x

y = kx

k = y/x

where 'k' is called the constant of proportionality

From the graph, it is clear that the point (2/5, 1/2) passes through the line which represents the direct relationship.

so we have the point (2/5, 1/2), and

x = 2/5

y = 1/2

so substituting x = 2/5 and y = 1/2 in the equation

k = y/x

k = [1/2] / [2/5]

k = [1 × 5 ] /  [2 × 2 ]

k = 5/4

Therefore, the constant of proportionality is:

Answer:

300° - 720°

Step-by-step explanation:

Co-terminal angles:  Angles that have the same initial side and the same terminal sides.

The co-terminal angle is found by adding or subtracting 360°n (or 2πn if working in radians) to the given angle.

Given angle:

Therefore, co-terminal angles of 300° are:

⇒ 300° + 360°n = 660°, 1020°, ...

⇒ 300° - 360°n = -60°, -420°, ...

Therefore, the expression that finds the measure of an angle that is co-terminal with a 300° angle is one that adds or subtracts a multiple of 360°:

300° - 2(360°) = 300° - 720°

The probability of getting (i) a king of red suit = 1 / 26 (ii) a face card = 3 / 13 (iii) a red face card = 3 / 26 (iv) a queen of black suit = 1 / 26 (v) a jack of hearts = 1 / 52 (vi) a spade = 1 / 4

Given, Total number of cards in a deck = 52 cards

(i) Probability of getting a king of red suit - A deck contains two red kings, one each in hearts and diamonds.

Therefore, P(getting a king of red suit) = (Number of kings of red suit) / (Total number of cards in the deck)

= 2 / 52= 1 / 26

(ii) Probability of getting a face card - A deck contains 12 face cards (4 Jacks, 4 Queens and 4 Kings)

Therefore, P(getting a face card) = (Number of face cards) / (Total number of cards in the deck)

= 12 / 52= 3 / 13

(iii) Probability of getting a red face card - A deck contains 6 red face cards (2 Jacks, 2 Queens and 2 Kings)

Therefore, P(getting a red face card) = (Number of red face cards) / (Total number of cards in the deck)

= 6 / 52= 3 / 26

(iv) Probability of getting a queen of black suit - A deck contains two black queens, one each in clubs and spades.

Therefore, P(getting a queen of black suit) = (Number of queens of black suit) / (Total number of cards in the deck)= 2 / 52= 1 / 26

(v) Probability of getting a jack of hearts - A deck contains only one jack of hearts

Therefore, P(getting a jack of hearts) = (Number of jacks of hearts) / (Total number of cards in the deck)= 1 / 52

(vi) Probability of getting a spade - A deck contains 13 spades

Therefore, P(getting a spade) = (Number of spades) / (Total number of cards in the deck)

= 13 / 52= 1 / 4

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Answer:

second option -2, -11

Step-by-step explanation:

when you put -2 where x is then

y is -11

Answer:

(-11.667, -9.333)

Step-by-step explanation:

were you looking for the intersection? that's what i just found. have a great day and thx for your inquiry.

Answer:

455

Step-by-step explanation:

Answer:

3/8

Step-by-step explanation:

2 x 3/8 = 6/8

6/8 divided by 2 is 3/8

If you want to halve the recipe, you will need 32 ounces of ground beef. We can find it by multiplying.

To determine the amount of ground beef needed when halving the recipe, we need to convert pounds to ounces. There are 16 ounces in 1 pound.

Given that the original recipe calls for 4 pounds of ground beef, we can calculate the amount needed when halving the recipe by dividing it by 2.

Amount needed when halving = 4 pounds / 2 = 2 pounds.

To convert 2 pounds to ounces, we multiply it by 16:

2 pounds * 16 ounces/pound = 32 ounces.

Therefore, when you halve the recipe, you will need 32 ounces of ground beef.

In conclusion, to make half of the original recipe that calls for 4 pounds of ground beef, you will need 32 ounces of ground beef.

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Answer:

674

Step-by-step explanation:

Answer:

woah woah woah woah calm down there buddy its 674 :)

Carlos buy 35 number of angelfish and 360 number of parrotfish.

What is solving an equation?

Unifying Principle for Equation Solving

By deleting parenthesis and grouping like terms, each side of the equation can be made simpler.

The variable term on one side of the equation can be separated using addition or subtraction.

To find the variable, use multiplication or division.

x represents the number of angelfish Carlos bought and the variable y represents the number of parrotfish he bought.

Carlos bought 405 tropical fish for a museum display.

x + y = 405            ..(1)

As he bought 8 times as many parrotfish as angelfish.

⇒ y = 8x                ..(2)

Plug y = 8x in equation (1)

x + 8x = 405

     9x = 405

       x = 45

Plug x = 45 in equation (2)

y = 8(45)

y = 360

Hence, Carlos bought 35 number of angelfish and 360 number of parrotfish.

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According to the given statement the mass of carbon in grams present in a 355 mL can at 5.0°C and 101.3 kPa is approximately 0.185 g.

To determine the mass of carbon in grams present in a 355 mL can at 5.0°C and 101.3 kPa, we need to follow these steps:
1. Convert the volume to liters: 355 mL = 0.355 L
2. Use the Ideal Gas Law formula: PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant (8.314 J/mol·K), and T is the temperature in Kelvin.
3. Convert the temperature to Kelvin: 5.0°C + 273.15 = 278.15 K
4. Calculate the number of moles (n): n = PV/RT = (101.3 kPa × 0.355 L) / (8.314 J/mol·K × 278.15 K)
Since 1 kPa = 1000 Pa and 1 J = 1 N·m, we can convert the units:
n = (101300 Pa × 0.355 m³) / (8.314 N·m/mol·K × 278.15 K)
5. Solve for n: n ≈ 0.0154 mol
6. Calculate the mass of carbon: mass = n × molar mass of carbon
The molar mass of carbon is 12.01 g/mol, so the mass is:
mass = 0.0154 mol × 12.01 g/mol ≈ 0.185 g
The mass of carbon in grams present in a 355 mL can at 5.0°C and 101.3 kPa is approximately 0.185 g.

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Answer:

They will buy 15 hamburger

Pls vote me as Brainiest

Answer:

Since 30% of 100 ml = .3*100 = 30 ml

60 % of X ml = .6x which we are trying to solve

add

(X+100).36 = 30+.6x

.36x+36 = 30+.6x

so

6 = .24x

x = 25 ml

Step-by-step explanation:

I hope this helps you

The conclusion that is correct in a two-tailed test at α = .05 is There appears to be no difference in the mean occupancy rates.

From the given values:

Thus, the P-value = 0.1791

Interpret results. Since the P-value (0.1791) is greater than the significance level (0.05), we failed to reject the null hypothesis.

From the above test, we do not have sufficient evidence in favor of the claim that there is a difference in the mean occupancy rates.

Thus, option A is correct.

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Answer:

\(\displaystyle m_{\text{perp}} = \frac{2}{3}\)

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

*Note:

The slope of the perpendicular line is the negative reciprocal of the given line.

Step 1: Define

Identify.

\(\displaystyle y = \frac{-3}{2}x - 14\)

Step 2: Find

a. The probability corresponds to the area under the standard normal curve to the left of the z-score. b. the probability associated with this z-score, which corresponds to the area under the standard normal curve to the left of the z-score.

a. The probability that a randomly selected teacher in New Jersey makes less than $50,000 a year can be calculated using the standard normal distribution. We need to standardize the value of $50,000 using the given mean and standard deviation.

First, we calculate the z-score, which measures the number of standard deviations a value is away from the mean:

z = (X - μ) / σ

Where X is the value we want to find the probability for, μ is the mean, and σ is the standard deviation.

In this case, X = $50,000, μ = $52,174, and σ = $7,500.

z = (50,000 - 52,174) / 7,500

Now, we can use a standard normal distribution table or a calculator to find the probability associated with this z-score. The probability corresponds to the area under the standard normal curve to the left of the z-score.

Let's assume that the probability is denoted by P(Z < z). Using the standard normal distribution table or calculator, we can find the corresponding probability value.

b. If we sample 100 teachers' salaries, we can use the Central Limit Theorem to approximate the sampling distribution of the sample mean. The Central Limit Theorem states that the sampling distribution of the sample mean approaches a normal distribution as the sample size increases, regardless of the shape of the population distribution.

In this case, we can assume that the population distribution is approximately normal, so the sampling distribution of the sample mean will also be approximately normal.

The mean of the sampling distribution of the sample mean is equal to the population mean, which is $52,174. The standard deviation of the sampling distribution, also known as the standard error of the mean, is equal to the population standard deviation divided by the square root of the sample size.

In this case, the population standard deviation is $7,500 and the sample size is 100.

Standard error of the mean = σ / sqrt(n) = 7,500 / sqrt(100) = 7,500 / 10 = 750

To find the probability that the sample mean is less than $50,000, we need to standardize the value of $50,000 using the mean and standard error of the sampling distribution.

z = (X - μ) / SE

Where X is the value we want to find the probability for, μ is the mean of the sampling distribution, and SE is the standard error of the mean.

In this case, X = $50,000, μ = $52,174, and SE = $750.

z = (50,000 - 52,174) / 750

Now, we can use a standard normal distribution table or a calculator to find the probability associated with this z-score, which corresponds to the area under the standard normal curve to the left of the z-score.

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Answer:

Step-by-step explanation:

Area = W x L

Area = 42

all give 42 as a result

Answer: 3ft squared

Step-by-step explanation: to find the area you have to multiply the height by the width. So 2 times 1.5 is equal to 3.

The statement "random sampling helps to reduce bias" is true. Random sampling is a statistical technique where each member of the population has an equal chance of being included in the sample.

By randomly selecting participants, the sample is more likely to be representative of the population, which helps to reduce bias.

Random sampling helps to reduce bias because it eliminates systematic bias, which can occur when certain individuals or groups are overrepresented or underrepresented in the sample.

For example, if a researcher only sampled individuals from a certain demographic group, the results of the study may not be generalizable to the larger population.

Random sampling also helps to increase the precision of the estimate of the population parameter, as it reduces the variability in the sample. This allows researchers to draw more accurate conclusions about the population based on the sample data.

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Answer:

b = 40°

Step-by-step explanation:

Since PQ = RQ, then Δ PQR is isosceles

Thus the 2 base angles are congruent

∠ PRQ  = 180° - 140° = 40° ( adjacent angles are supplementary )

Then

∠ QPR = ∠ PRQ = b = 40°

Answer:

40 degrees

Step-by-step explanation:

The image says that PQ=RQ which makes this triangle isosceles. To solve you must remember that in isosceles triangles the two base angles are always congruent. In this case, the two bottom angles are the bases. So we must first solve for m<QRP. To do this use complementary angles to make the equation m<QRP=180-140. So m<QRP=40 which means b=40 also.

Answer:

-15 degrees

Step-by-step explanation:

3 times 5 is 15 and its negative because it says it DROPS every hour and its taking the temp every 5 hrs

Answer:

2

Step-by-step explanation:

given x=1 and y=7

now, given expression ,

x+y/4

by putting the values of the x and y ,we get

x+y/4

= 1+7/4

= 8/4

= 2 (Ans.)

The Distance from point A to point B is: 3.4 ft when θ = 28° and The value of θ is: 54.8°

Given,

A spring is attached at one end to support B and at the other end to collar A.

Part A:  Reference angle (θ) = 28°

We have to find out the distance of point A to point B.

Adjacent = 3 ft (given)

Apply the trigonometry function to find AB

cos θ = adj / hypotenuse

Substituting all the values ,

cos 28°= 3/AB

AB = 3/cos 28°

 AB = 3.4 ft (nearest tenth of a foot)

Part B:

It is given that Distance  from point A to point B is 5.2 feet

We have to calculate the Value of θ

adjacent = 3 ft

hypotenuse = AB = 5.3 ft

To find θ , We will again apply the trigonometry function

cos θ = adjacent/hypotenuse

Substituting all the given values

cos θ = 3/5.3

θ = cos⁻¹ ( 3 / 5.3)

θ = 54.8°

That is,

The length of point A to point B is 3.4 feet

The value of θ is 54.8°

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Answer:

Slope intercept form: y=mx+b; where m is the slope and B is the y intercept

For 2 lines to be parallel they must have the same slope. Thus, the slope of the new line is going to be 1.

To find the y intercept plug in the slope and the x, y into the equation y=mx+b:

y=mx+b

y=1x+b

2=1(2)+b

2=2+b

0=b

b=0

Now that we have your slope and y intercept we can make the equation:

y=1x+0

y=x

Step-by-step explanation:

Answer:

\(\frac{3x^2}{(x+2)(x-4)}\)

Step-by-step explanation:

Before adding the fractions we require them to have a common denominator.

Multiply numerator/ denominator of first fraction by x - 4

Multiply numerator/ denominator of second fraction by x + 2

= \(\frac{x(x-4)}{(x+2)(x-4)}\) + \(\frac{2x(x+2)}{(x+2)(x-4)}\) ← expand and simplify numerators, leaving common denominator

= \(\frac{x^2-4x+2x^2+4x}{(x+2)(x-4)}\)

= \(\frac{3x^2}{(x+2)(x-4)}\)

Answer:

12/c= 3/2

c = 3/2×12

c = 18

Hope it helps!

Answer:

c = 8

Step-by-step explanation:

Here we are solving for c in the equation 12/c=3/2

We can use our basic multiplication rules to figure this one out.

12 / 3 is 4, meaning four multiples of 3 go into 12. This means, four multiples of 2 go into c.

4 * 2 = 8, giving us our value for C.

To verify this, we can simplify 12/8 and would still end up with 3/2.

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A z-score of 2.14 indicates that Katie's score on the test is quite high and unusual, and places her in the top 2% of the scores in the population.

Katie scored a 93 on a test and her calculated z score was 2.14, that means that her score is 2.14 standard deviations above the mean of the test scores.

A z score represents the number of standard deviations a data point is from the mean of the data set.

A positive z score means that the data point is above the mean, while a negative z score means that the data point is below the mean.

The mean of the test scores was, 80 with a standard deviation of 5, then Katie's z score would be calculated as:

z = (x - μ) / σ

= (93 - 80) / 5

= 2.6

Z scores are useful for comparing data points from different data sets or for comparing data points within the same data set that are measured on different scales.

Katie's score is 2.6 standard deviations above the mean.

A z score of 2.14 would mean that Katie's score is slightly below this value, but still significantly above the mean.

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