PLZ HELP A GIRL OUT SHES STRUGGLING‼️

Answer: The flagpole is 32 feet high. hope this helps

Step-by-step explanation:

This is a Ratio and Proportion question.

The relationship between the height of the sign and its shadow is the same as the relationship between the flagpole and its shadow.

That relationship is 8:3.

That means that for every 8 feet tall an object is, its shadow is 3 feet long.

If some object is 16 object shadow=166=83

If some object is 4 feet tall, its shadow is 1.5 feet long.

object shadow=4 1.5=83

that works backwards too.

If the shadow is 9 feet long, the object is 24 feet tall.

object shadow=249=83

Keep the shadow in the denominator even it the problem names it  feet tall, its shadow is 6 feet long.

In the problem, the ratio of object to shadow is 8:3 in both cases, even though only one object is exactly 8 feet tall. objectnshadow=83=x12

That means you can solve for x to find the height of the flagpole.

You can solve the pair of equal fractions by cross multiplying and then solving for x, already defined as "the height of the flagpole."

1) Cross multiply3x=8⋅12

2) Divide both sides by 3 to isolate x, already defined as "the height of the flagpole.

To weasel out of having to multiply 8⋅12, make the numbers small by first dividing by 3.

After you have divided both sides by 3, you will have this: x=8⋅4x=32

We can use the trigonometric identity sin(a - b) = sin(a)cos(b) - cos(a)sin(b) to rewrite the left-hand side of the equation as sin(5x - 8x). Therefore, we have:

sin(5x - 8x) = -0.3

Simplifying further, we get:

sin(-3x) = -0.3

Since sin(x) is an odd function, we can rewrite sin(-3x) as -sin(3x):

-sin(3x) = -0.3

Dividing both sides by -1, we get:

sin(3x) = 0.3

To find the smallest positive solution, we need to find the smallest value of x that satisfies this equation. The solutions to the equation sin(3x) = 0.3 can be found using the inverse sine function (sin^-1 or arcsin), which gives us:

3x = sin^-1(0.3) + 2πn or 3x = π - sin^-1(0.3) + 2πn

where n is an integer representing the number of complete cycles around the unit circle.

Solving for x, we get:

x = [sin^-1(0.3) + 2πn]/3 or x = [π - sin^-1(0.3) + 2πn]/3

Substituting n = 0 in each case to obtain the smallest positive solution, we get:

x = [sin^-1(0.3)]/3 or x = [π - sin^-1(0.3)]/3

Using a calculator, we can evaluate sin^-1(0.3) ≈ 0.3047 and substitute it into the two equations above to obtain:

x ≈ 0.1015 or x ≈ 1.0472

Therefore, the smallest positive solution to the equation sin(5x)cos(8x) - cos(5x)sin(8x) = -0.3 is approximately x ≈ 0.1015.

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Answer:

a) 5y - 25

Step-by-step explanation:

Answer: Absolute value will alwase be a positive number, while solving an equation that does not involve absolute value could be any number. Positive, negativ, you name it. They ae similer, because either way, you are trying to figure out a varible. -hope this helped! if i misunderstood anything, let me know! i love to improve :D

Rectangle ABCD is a square.

Relation between rectangle and square?

Squares and rectangles each have four straight sides. However, a square's and a rectangle's mathematical characteristics are very dissimilar. For instance, a common distinction is that squares have equal sides on each side, whereas only the opposite sides of a rectangle are equal.

Radius of circle R = 4cm

let sides of rectangle is a,b

let rectangle be ABCD in which AB =CD= a , AC=BD=b

ACD is right angled triangle on C.

Then,

\(AD^{2} =AC^{2} +CD^{2} \\\\8^{2} =b^{2} +a^{2} \\\\64=b^{2} +a^{2} \\\\b^{2} =\sqrt{64-a^{2} }\)------(1)

Area of rectangle = Area of ΔACD + ΔABD

                             = \(\frac{1}{2} \times a\times b + \frac{1}{2} \times a\times b\)

Area of rectangle = a×b

by eqn (1)

             Area = \(a\times (\sqrt{64-a^{2} } )\)

For maximum area

\(\frac{dA}{da} =0\\\\a \times \frac{1}{\sqrt{64-a^{2} } } (-a)+(\sqrt{64-a^{2} } )\times(1)=0\)

\(\sqrt{64-a^2} -\frac{a^2}{\sqrt{64-a^2} } =0\\\\\frac{64-a^2-a^2}{\sqrt{64-a^2} } =0\\\\64-2a^2=0\\\\a^2=32\\\\a=\sqrt{32} \\\\In (1) eqn\\b=\sqrt{64-a^2} \\\\b=\sqrt{64-32} \\\\b=32\)

So, a=b

Means Rectangle ABCD is a square.

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Answer:

a=28m^2

Step-by-step explanation:

Given:

l=14m

w=200cm

Required

a=?

w in meters

Formula:

1m=100cm

b=200cm---criss cross it

b*100cm/100cm=1m*200cm/100cm

b=2m

a=l*w

a=14m*2m

a=28m^2

Answer:

1900 km

Step-by-step explanation:

train = 1050km

bus = 200 less than train or 1050-200 = 850

1050+850=1900

Answer:

625, just got it right

Step-by-step explanation:

Answer:

Step-by-step explanation:

6\(\sqrt{5\\\)

\(\sqrt{5*36}\)

\(\sqrt{180}\)

If you think about it logically, how can you take 6 out? So there was a number 36 under the root, and because of that there is a possibility to take it out, because 6 squared is 36

Answer:

D, D

Step-by-step explanation:

3x - 2 = -2x + 3

5x = 5

x = 1

Answer:

14x-4

Step-by-step explanation:

So you know 3x +5x = 8x so then you add 6x and put -4

Answer:

14x - 4

Step-by-step explanation:

simplifying this kind of given expression just means to put the variables all together and the numbers all together to get a shorter and more simplified version of the equation.

first do:

3x+5x+6x=

14x

and than you just have one number so your final simplified equation would be:

14x-4

Answer:

13

Step-by-step explanation:

-2(-2) - (-8) + 1

4 + 8 + 1 = 13

Answer:

13

Step-by-step explanation:

cause i did it and it was right

Hay 1200 gomas de borrar en total en las 4 cajas.

Para saber la cantidad de gomas de borrar que hay en 4 cajas, Don Jacinto necesita multiplicar la cantidad de gomas de borrar en cada caja (300) por la cantidad de cajas (4).

La operación que debe hacer es:

300 * 4

El resultado de esta multiplicación es:

300 * 4 = 1200

Es importante notar que en el escenario dado, la información inicial acerca de que Don Jacinto tiene 230 cuadernos no es relevante para encontrar el número de borradores en las 4 cajas. Solo necesitamos considerar el número de gomas de borrar en cada cuadro (300) y el número de cajas (4) para realizar la multiplicación y calcular el número total de gomas.

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Compare the values of r for all three groups to determine which group has the strongest linear relationship.

Calculate the values of r for each group of linearly related bivariate data and compare them to determine the strongest linear relationship. The explanation step-wise involves calculating the correlation coefficient for each group.

In the first group, the bivariate data has a linear relationship.  we need to determine the value of r for each group. The explanation step-wise is as follows:

1. For group 1, the value of r is missing. To find it, calculate the correlation coefficient using the given data points.

2. Repeat the same process for group 2 and group 3 to find their respective values of r.

3. Compare the values of r for all three groups to determine which group has the strongest linear relationship.

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1. Communicating via e-mail is a traditional use of computers.

2. Creating advertisements and paying someone to publicize them is a traditional use of computers.

3. Communicating via social networking websites is a new use of computers.

4. Collaborating as a virtual team is a new use of computers.

5. Manually managing financial, inventory, and scheduling records is a traditional use of computers.

1. Communicating via e-mail is a use of computers:

This is a traditional use of computers. Computers have long been used for sending and receiving emails, which allows for efficient and instant communication between individuals and organizations.

2. Creating advertisements and paying someone to publicize them is a use of computers:

This statement can be considered both a traditional and a new use of computers. While the act of creating advertisements can involve traditional methods like graphic design software on computers, the mention of paying someone to publicize them suggests a more modern approach, potentially involving digital marketing platforms and online advertising.

3. Communicating via social networking websites is a use of computers:

This is a new use of computers. Social networking websites have become popular platforms for communication and connecting with others. Computers and internet access are essential for engaging in social networking activities.

4. Collaborating as a virtual team is a use of computers:

This is a new use of computers. With advancements in technology, virtual teams can collaborate remotely using computers and various online collaboration tools. This allows team members to work together, share documents, communicate, and coordinate their efforts, regardless of their physical location.

5. Manually managing financial, inventory, and scheduling records is a use of computers:

This is a traditional use of computers. Computers have been widely used for managing and organizing various records, such as financial transactions, inventory management, and scheduling. This digital approach provides more efficient data storage, retrieval, and analysis compared to manual record-keeping methods.

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Complete Question:

Use the drop-down menus to indicate whether each statement describes a traditional use of computers or a new use.

Answer:

4.35

Step-by-step explanation:

Answer:

4.35 kilo

Step-by-step explanation:

Answer:

I believe it's  (5.7, 2.2)

I hope it's correct :)

c

Step-by-step explanation:

for the lazy people like me its c

Answer: -4, -6, and -8, respectively. You must multiply each phrase by -2 to get to the next term (or remove it by 2). The next three terms would be -4, -6, and -8 as a result.

Answer:

last option is correct

...................................

Answer:

105m²

Step-by-step explanation:

15+6=21

21÷2=10.5

10.5x10=105

Answer: D

Step-by-step explanation:

Answer:

D: Dutch

Step-by-step explanation:

Answer:

A lower price and quantity would result.

Answer:

the answer is 2

Step-by-step explanation:

this was a question on my test on khan academy :D

Answer:

Option A

Step-by-step explanation:

Out of 12 contestants, the judges will select either 3 or 4 contestant.

Number of groups that can be formed when judges pick three contestants

\(^{12}C_3\)

\(220\)

Number of groups that can be formed when judges pick three contestants

\(^{12}C_4\\495\)

Number of more  groups that can be formed if the judges  pick four instead of three

\(= 495-220 = 275\)

Hence, option A is correct

Answer:

i also don't have the idea

Removing the electric car from the data set will reduce the standard deviation as the extreme value of 112 mpg is taken out, resulting in a decrease in the spread of the data. The interquartile range (IQR) will also be affected as the extreme outlier is taken out, will decrease the spread of the data in the boxplot.

The electric car with a rating equivalent to 112 miles per gallon is an extreme outlier, which means it is very far from the rest of the data. Therefore, removing this outlier from the data set will decrease the variability and, consequently, decrease the standard deviation. The extreme outlier with the rating equivalent to 112 miles per gallon is outside of the whiskers of the boxplot, which means it is beyond the range of the middle 50% of the data. Therefore, removing this outlier from the data set will decrease the spread of the data in the boxplot and, consequently, decrease the IQR.

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Answer:

your answer is A.

Step-by-step explanation:

The false statement about completely random designs is this:  c.) The additional variables affect different control groups differently.

The false statement about completely random designs is that additional variables affect different control groups differently. It is however true that in completely random esigns, the subjects are randomly assigned to treatments and any number of treatments may be addressed.

Also, the goal of this type of design is to reduce the effects of confounding variables. So, the correct option number that describes the false statement is C.

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The probability that the mean length of a sample of 299 steel rods would differ from the population mean by less than 0.7 millimeters is 0.9992, rounded to four decimal places.

The mean of a sample of steel rods can be considered as a random variable, with a mean equal to the population mean and a standard deviation equal to the population standard deviation divided by the square root of the sample size. In this case, the mean of the sample of 299 rods would have a mean of 170mm and a standard deviation of 10mm divided by the square root of 299, which is approximately 0.577 mm.

To find the probability that the mean length of the sample rods would differ from the population mean by less than 0.7 mm, we need to find the probability that the standardized sample mean falls within a range of plus or minus 0.7 mm from the population mean. We can calculate this probability using the standard normal distribution, by calculating the z-score for the lower and upper limits of this range and then finding the area under the curve between these z-scores.

The z-score for a deviation of 0.7 mm from the mean is (0.7 - 0) / 0.577 = 1.2127. Therefore, the probability that the sample mean would differ from the population mean by less than 0.7 millimeters is the area under the standard normal curve between -1.2127 and 1.2127, which can be found using a standard normal distribution table or calculator. This probability is 0.9992, rounded to four decimal places. Therefore, we can conclude that it is highly likely that a sample of 299 rods would have a mean length that is very close to the population mean.

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Answer:

36

Step-by-step explanation:

Divide 84 by 7

84 ÷ 7 = 12

Now multiply 3 by 12

3 × 12 = 36

Then

7 : 3 = 84 : 36

Answer:

p < 0.24

Step-by-step explanation:

If earning is 24% less Than predicted, this means that the we can represent the predicted earning with a variable, p

If the predicted earning = p

Then, the actual earning can be represented by the inequality ; p < 24%

p < 0.24