Julie grew 36 flowers with 12 seed packets. How many seed packets does Julie need to have a total of 78 flowers in her garden? Assume the relationship is directly proportional.

The total surface area of the composite figure is; 74.27 sq.units

The area of this composite figure will be the sum of the areas of the triangle and semi circle.

Formula for area of triangle = ¹/₂ * base * height

In this case;

Base = 10 units

height = 7 units

Thus;

A_t = ¹/₂ * 10 * 7

= 35 sq. units

Area of semi circle is;

A_s = ¹/₂(π * (10/2)²)

A_s = 25π/2

= 39.27 sq. units

Total surface area = 35 sq. units + 39.27 sq. units

= 74.27 sq.units

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The scatterplot with the least squares line provides insights into the relationship between average annual global surface temperature and the years from 2000 to 2015, allowing us to assess trends, strength of correlation, and make predictions within certain limitations.

The scatterplot represents the relationship between the average annual global surface temperature, in degrees Celsius, and the corresponding years from 2000 to 2015. The line drawn on the plot is the least squares line, which is the best fit line that minimizes the overall distance between the observed data points and the line.

The least squares line is determined using a statistical method called linear regression. It calculates the equation of a straight line that represents the trend in the data. This line serves as a mathematical model to estimate the average temperature based on the year.

By analyzing the scatterplot and the least squares line, we can make several observations. Firstly, we can see whether the temperature has been increasing, decreasing, or remaining relatively stable over the given years. If the slope of the line is positive, it indicates a positive correlation, implying that the temperature has been increasing. Conversely, a negative slope suggests a decreasing trend.

Additionally, we can evaluate the strength of the relationship between temperature and time by examining how closely the data points cluster around the line. If the points are closely grouped around the line, it suggests a strong correlation, indicating that the line is a good representation of the data. On the other hand, if the points are more scattered, the correlation may be weaker.

Furthermore, the line can be used to predict the average annual global surface temperature for future years beyond the data range of 2000 to 2015. However, it's important to note that such predictions should be made with caution and considering other factors that may affect global temperatures, such as climate change and natural variability.

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Question

The given scatterplot shows the average annual global surface temperature, in degrees celsius, for each year from 2000 to 2015. the line drawn is the least squares line for the data set.

Answer:

48 : 42

Step-by-step explanation:

1. Whatever you do to one side of the ratio you do to the other.

2. If there are 42 forks, then the ratio then looks like this: x : 42

3. One side of the ratio was multiplied by six.

4. Do the same to the other and you get 48 : 42

Hope this helps ~

Answer:

48 knives

Step-by-step explanation:

The original ratio is 8:7

Our ratio now, looks like this k:42 (k is just a variable)

First, divide 42 by 7 and you'll get 6.

Multiply 6 by 8 and you'll get a product of 48.

Our new ratio should look like this 48:42

There are 48 knives.

Answer:

The answer is b and helping for higer points

Step-by-step explanation:

Answer: D

Step-by-step explanation:

y intercept is at 2 and the slope is 1/5

Answer:

Step-by-step explanation:

I'm taking this to mean

x = 0.255555555555... If this is not correct, leave a note. Multiply by 100

100 x = 25.55555555555555 ...     Divide by 10

  10x =    2.55555555555555 ...     Subtract

90 x = 23

x = 23/90    

Try putting 23/90 in your calculator. You will find it is 0.25555555... just what you were given    

Answer:

simplified: -18x + 14 + \(\frac{9}{x}\)

Step-by-step explanation:

Answer:

0.408

48%

3.41

10

4996

7100

Step-by-step explanation:

Answer:

It should be 0.408, 48%( which is equal to 0.48), 3.41,10,4996,and 7100

Step-by-step explanation:

Answer:

I believe that this is true. Anyone can do well in math, not everyone. The main difference being that if EVERYone could, that means every one person in the world, no matter the circumstance, so by saying ANYone, it's saying that however many people in the world want to do it, can do it, if they try and put in the work. Math is not biased against any one person, nor is it  favored for any one person. Any person who studies, or learns it can do well in math. Someone who has never learned anything about math will not do well at all. So, yes, ANYone can do well, but not EVERYone.

Not 100 words, but should do trick if you just add in some extra words between phrases, and substitute some words with one or two synonyms.

The minimum sample size needed to guarantee a given margin of error increases , the correct option is (b) .

What is Margin Of Error ?

The term margin of error is defined as an estimate of a small sample that is drawn from a relatively large population data.

the margin of error is usually governed by the parameters such as the standard deviation , sample size and desired confidence level.

to find missing term in the given statement , let us consider the values ,

where σ ⇒ Standard deviation for population

and m as "Margin of error"  and Z as "Empirical value of Z-score" at a given confidence level .

So , minimum sample size for given confidence level is given by

⇒ (Z×σ)²/m²

from above formula we can conclude that minimum sample size is directly related to population's standard deviation.

Therefore, the minimum sample size required would "increase" with the increase in population "standard deviation" .

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This follows from the identity

\(\cot(x) = \dfrac1{\tan(x)} = \tan(90^\circ - x)\)

The overall product is 1 because

\(\tan(10^\circ) \tan(80^\circ) = \cot(80^\circ) \tan(80^\circ) = 1\)

\(\tan(20^\circ) \tan(70^\circ) = \cot(70^\circ) \tan(70^\circ) = 1\)

\(\tan(30^\circ) \tan(60^\circ) = \cot(60^\circ) \tan(60^\circ) = 1\)

\(\tan(40^\circ) \tan(50^\circ) = \cot(50^\circ) \tan(50^\circ) = 1\)

Answer:

I believe its C = 6.75T

Step-by-step explanation:

Answer:

81

Step-by-step explanation:

The p value for your hypothesis test is 0.0832.

To calculate the p-value for a hypothesis test, we need to know the null hypothesis, the alternative hypothesis, the test statistic, and the level of significance (alpha). Let's assume that the null hypothesis is that the percentage of American families owning stocks or stock funds is equal to 50%, and the alternative hypothesis is that it is not equal to 50%.

The test statistic for a hypothesis test of a proportion is given by:

z =   \(\frac{p-P}{\sqrt{\frac{P(1-P)}{n} } }\)

where p is the sample proportion (0.46), P is the hypothesized population proportion under the null hypothesis (0.5), n is the sample size (300), and sqrt denotes the square root function.

Plugging in the values, we get:

z =   \(\frac{0.46-0.5}{\sqrt{\frac{0.5*0.5}{300} } }\)    = -1.732

To find the p-value, we need to find the area under the standard normal curve to the left and right of the test statistic (since this is a two-tailed test). Using a standard normal table or calculator, we find that the area to the left of -1.732 is 0.0416, and the area to the right is also 0.0416 (since the standard normal curve is symmetric).

Therefore, the p-value for this hypothesis test is the sum of the areas in both tails:

p-value = 0.0416 + 0.0416 = 0.0832

Rounding to four decimal places, the p-value is 0.0832.

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Step-by-step explanation:

Cost of 12m carpet = €516

cost of 1 m carpet = €516/ 12 = € 43

Now

cost of 16m carpet = € 43 * 16 = € 688

\(hope \: it \will \: help \: u\)

after 14 years, there will be approximately 1.97g of the radioactive substance remaining.

To solve this problem, we can use the concept of exponential decay for radioactive substances. The decay of a radioactive substance can be modeled by the equation:

N(t) = N₀ * e^(-kt),

where N(t) is the amount of substance at time t, N₀ is the initial amount of substance, e is the base of the natural logarithm, k is the decay constant, and t is the time elapsed.

In this case, we are given that the initial amount N₀ is 10g and the amount after 9 years N(9) is 5g. We can use this information to find the value of k.

5 = 10 * e^(-9k).

Divide both sides of the equation by 10:

0.5 = e^(-9k).

Take the natural logarithm of both sides:

ln(0.5) = -9k.

Solve for k:

k = ln(0.5) / -9.

Now that we have the value of k, we can use it to find the amount of substance after 14 years, N(14):

N(14) = N₀ * e^(-kt).

N(14) = 10 * e^(-ln(0.5) / -9 * 14).

N(14) = 10 * e^(14 * ln(0.5) / 9).

N(14) ≈ 10 * 0.197 = 1.97.

Therefore, after 14 years, there will be approximately 1.97g of the radioactive substance remaining.

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The price that Maura sell each scarf would be =$33. Maura sells each scarf for $33. That is option A.

To calculate the amount of money that Maura spends on each scarf the following is carried out.

The amount of money that she spends on the scarf material = $5.50

The percentage selling price of each scarf = 600% of $5.50

That is ;

= 600/100 × 5.50/1

= 3300/100

= $33.

Therefore, each price that is sold by Maura would probably cost a total of $33.

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The value the angles Y is 40° if ∠S and ∠Y are complimentary, as stated in the previous sentence.

Complement or "favorable" refers to "offering a compliment." In the context of goods or services offered as a favor, it can also signify "free." The term "complementary" means to emphasize or enhance the positive aspects of that other person or object.

Angles that add up to 90 degrees are said to have complementary angles.

As a consequence, the value of factor y will be determined using the information provided:

x + y = 90°

3y - 70° + y = 90°

Collect like terms

3y + y = 90° + 70°

4y = 160°

y = 160/4

y = 40°

Angle y has a value of 40°.

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Answer:

definitely  b.

Step-by-step explanation:

Answer:

I'm just going with the person above me that the answer is B. Yes, he used systematic random sampling.

Step-by-step explanation:

Tell me if I'm wrong.

The chance model asserts that the long-run proportion of an event is equal to the probability of that event. In other words, if we repeatedly conduct an experiment under the same conditions, the proportion of times that the event occurs over the long run should converge to the probability of the event.

For example, if we flip a fair coin many times, the chance model asserts that the proportion of heads should approach 0.5 as the number of coin flips increases. This is because the probability of flipping heads on a fair coin is 0.5, and over the long run, the proportion of heads should converge to this probability.

The chance model is a fundamental principle in probability theory, and it is used to make predictions about the outcomes of random events. It provides a way to quantify the uncertainty associated with an event and to reason about the likely outcomes of an experiment.

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Thus,  the dB gain for the given sound intensity is found to be approximately 8.16 dB.

To find the decibel (dB) gain for the given sound, we will use the formula for calculating the difference in decibels, which is:

dB gain = 10 * log10(P2 / P1)

In this case, P1 represents the initial sound intensity (3.2 x 10^(-12) watts/cm^2), and P2 represents the final sound intensity (2.1 x 10^(-11) watts/cm^2).

Let's plug the values into the formula:

dB gain = 10 * log10((2.1 x 10^(-11)) / (3.2 x 10^(-12)))

First, we will divide the two intensities:

(2.1 x 10^(-11)) / (3.2 x 10^(-12)) = 6.5625

Now, let's calculate the logarithm of the result:

log10(6.5625) = 0.8164

Finally, we will multiply the logarithm by 10:

dB gain = 10 * 0.8164 = 8.164

So, the dB gain for the given sound is approximately 8.16 dB. This means that the noise in the dormitory increased by 8.16 dB when the intensity increased from 3.2 x 10^(-12) watts/cm^2 to 2.1 x 10^(-11) watts/cm^2.

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Answer:

y=2

Step-by-step explanation:

Answer:-4

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

Since this is an isosceles triangle the unmarked side is also √2

Since this is also a right triangle use the pythagorean theorem to find x.

x² = (√2)² + (√2)²

x² = 2 + 2

x² = 4

x = 2

The value of x is 2.

The relationship between the three sides of a right-angled triangle is explained by the Pythagoras theorem, commonly known as the Pythagorean theorem. The Pythagoras theorem states that the square of a triangle's hypotenuse is equal to the sum of its other two sides' squares.

Given:

H= x, P= √2, B= √2

Now, using Pythagoras theorem

H² = P² + B²

x² = (√2)² + (√2)²

x² = 2 + 2

x² = 4

x = 2

Hence, the value of x is 2.

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Answer:

(0, -7)

Step-by-step explanation:

y = -3x - 7

y -int - > (0,-7)

hope this helps!

Measurement of each angle is 60°

Triangle with equal angle

Measurement of each angle

Sum of all angle in a triangle = 180°

Each angle measurement = a

So,

a + a + a = 180

3a = 180

a = 60°

Measurement of each angle = 60°

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The average translational kinetic energy of nitrogen molecules at 1600 K is 3.05 x 10^-20 J.What is kinetic energy?Kinetic energy refers to the energy of a moving object. It is the amount of work required to accelerate a body of a given mass from a state of rest to a particular velocity.

Translational kinetic energyTranslational kinetic energy is the energy associated with the movement of an object from one place to another. An object that travels from one location to another, such as a car driving down a road, has translational kinetic energy.What is the average translational kinetic energy of nitrogen molecules at 1600 K?The average translational kinetic energy of nitrogen molecules at 1600 K can be determined using the formula;K.E. = (3/2) kTWhereK.E. = kinetic energyk = Boltzmann constantT = temperatureIn this case, temperature, T = 1600 K and Boltzmann constant, k = 1.38 x 10^-23 J/K.K.E. = (3/2) kT= (3/2) x 1.38 x 10^-23 J/K x 1600 K= 3.05 x 10^-20 JTherefore, the average translational kinetic energy of nitrogen molecules at 1600 K is 3.05 x 10^-20 J.

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The average translational kinetic energy of nitrogen molecules at 1600K is 3.31 x 10-20 J.

The translational kinetic energy of a molecule is defined as 1/2 m v².

The kinetic energy of a gas is the sum of all of the molecules' translational kinetic energy.

The average translational kinetic energy of a gas is given by 3/2 kT,

where k is the Boltzmann constant, T is the temperature of the gas in kelvins.

Hence, the average translational kinetic energy of nitrogen molecules at 1600K is calculated as follows:

Temperature of the nitrogen molecules,

T = 1600K, Boltzmann constant,

k = 1.38 x 10-23 J/K

Formula: The average translational kinetic energy of a molecule = 3/2 kT.3/2 × 1.38 x 10-23 J/K × 1600 K

= 3.31 x 10-20 J.

The average translational kinetic energy of nitrogen molecules at 1600K is 3.31 x 10-20 J.

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