please help me and be for reallll thankss ill give brainliest

By using trigonometry, it can be calculated that-

Distance from the top of the tree to the tip of the shadow is 15.46 feet

What is Trigonometry?

Trigonometry shows the relationship between sides and angles of a right angled triangle.

There are six trigonometrical functions

[tex]sin \theta, cos \theta, tan \theta, cot \theta, sec \theta, cosec \theta[/tex]

[tex]sin \theta = \frac{Perpendicular}{Hypotenuse}\\\\cos \theta = \frac{Base}{Hypotenuse} \\\\tan \theta = \frac{Perpendicular}{Base} \\\\cot \theta = \frac{Base}{Perpendicular} \\\\sec \theta = \frac{Hypotenuse}{Base} \\\\cosec \theta = \frac{Hypotenuse}{Perpendicular} \\\\[/tex]

Let the angle of elevation be [tex]\theta[/tex] and distance from the top of the tree to the tip of the shadow be d feet

Here the tree represents the perpendicular, shadow represents the base and distance from the top of the tree to the tip of the shadow represents the hypotenuse

A tree that is 15 feet tall casts a shadow that is 4 feet long

[tex]tan\theta = \frac{15}{4}\\\theta = tan^{-1}( \frac{15}{4})\\\theta = 75.1^{\circ}[/tex]

Now,

[tex]sin75.1^{\circ} = \frac{15}{d}[/tex]

[tex]0.97 = \frac{15}{d}\\d = \frac{15}{0.97}\\d = 15.46 \ feet[/tex]

Distance from the top of the tree to the tip of the shadow is 15.46 feet

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The point H is at 2.5 on the number line

Here we know that point F is at 4 and point G is at -2.

The distance between these 2 points is

4 - (-2)

= 4 + 2 units

= 6 units.

Now let the point H be at x on the number line.

Now it is given that

FH:GH = 3:9

or, FH/GH = 3/9

or, (4 - x) / (x - (-2)) = 3/9

or, (4 - x)/(x + 2) = 1 /3

or, 12 - 3x = x + 2

or, 4x = 10

or, x = 2.5

Hence point H is at 2.5

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Complete Question

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar. On a number line, point F is at 4, and point G is at -2. Point H lies between point F and point G. If the ratio of FH to HG is 3:9, where does point H lie on the number line? Point H is at the number line.

By means of Euclidean geometry and algebra, the line segment PQ has a length of 2 units.

In this problem we find the case of a geometric system formed by a line segment PR with a point Q on the line between P and R. Thus, a line segment PQ is inside the line segment described above.

According to the statement, the lengths of the line segments PR and QR are known and the length of line segment PQ can be known by Euclidean geometry and algebra:

PR = PQ + QR

PQ = PR - QR

If we know that PR = 10 and QR = 8, then the line segment PQ is calculated below:

PQ = 10 - 8

PQ = 2

In accordance with algebra and Euclidean trigonometry, the length of line segment PQ is 2.

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Answer:

33.33%

Step-by-step explanation:

Calculate percentage change from

V1 = 9 to V2 = 12

(V2-V1)|V1|×100

=(12−9)|9|×100

=3/9×100

=0.333333×100

=33.33%

Part A) If the original price of the model car was $40, and it was sold on the third day, with a daily discount of 5%, the sales amount is $34.30.

Part B) The percentage discount from the original price is 14%.

The percentage discount is the total discount divided by the original price multiplied by 100.

In this instance, we compute the total discount as $5.70, then express this value as a numerator with $40 as the denominator.  The quotient is multiplied by 100.

Original price of the model car = $40

Daily discount = 5%

The date the car sells = the third day

The sales price on the third day = $34.30 ($40 x 95% x 95% x 95%)

Total discounts = $5.70 ($40 - $34.30)

Percentage discount for three days =14.25% ($5.70/$40 x 100)

= 14%

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By solving a linear equation, it can be calculated that-

It takes 3.51 months for  Belvedere to weigh the same as Thor

What is a linear equation?

At first it is important to know about equation

Equation shows the equality between two algebraic expressions by connecting the two algerbraic expressions by an equal to sign.

A one degree equation is known as linear equation.

A linear equation needs to be solved here

Let the number of months for Belvedere to weigh the same as Thor be x months

Thor weighs 192 pounds and plans on losing 2.1 pounds each month.

Weight of Thor after x months = 192 - 2.1x

Belvedere weighs 211 pounds and plans on losing 7.5 pounds per month.

Weight of Belvedere after x months = 211 - 7,5x

By the problem,

The linear equation is

192 - 2.1x = 211 - 7.5x

7.5x - 2.1x = 211 - 192

3.51 5.4x = 19

x = [tex]\frac{19}{5.4}[/tex]

x = 3.51 months

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Answer: B.83

Step-by-step explanation:

Answer: B.83

Step-by-step explanation:

The number 2,158 is called the numerator or dividend, and the number 26 is called the denominator or divisor.

The quotient of 2,158 and 26, the ratio of 2,158 and 26, as well as the fraction of 2,158 and 26 all mean (almost) the same:

2,158 divided by 26, often written as 2158/26. 2,158 divided by 26 = 83

The result of 2158/26 is an integer, which is a number that can be written without decimal places.

   2158 divided by 26 in decimal = 83

   2158 divided by 26 in fraction = 2158/26

   2158 divided by 26 in percentage = 8300%

Answer:

$5.25

Step-by-step explanation:

3 + .75(3)

3 + 2.25

5.25

Answer:

Step-by-step explanation:

Have the cash register print a pink arrow on a receipt every 15 minutes. Survey customers with a pink arrow on their receipts.

Its correct I got it right!!

The approach which is most likely to represent a sample that is representative of the population is option C. Have the cash register print a pink arrow on a receipt every 15 minutes. Survey customers with a pink arrow on their receipt.

Sampling methods are methods used to select a sample using specific methods. This includes various types of probability sampling and non probability sampling methods.

The random sample we need here is the sample of customers coming to a shop.

If we select the customers by the other options other than the third one, it will lead to various bias issues like sampling bias and research bias.

Hence the most appropriate method is to use option c.

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For Function 3(5/4)³ , 3 is inital value , 5/4 is base with (-∞, ∞) as Domain

An exponential function is one with the mathematical formula f (x) = ax, where "x" is a variable and "a" is a constant that serves as the function's base and must be greater than 0.

An exponential function f(x) = abˣ,

According to the question,

The given exponential function : f(x) =3(5/4)³

Here, 3 is the Inital value

The base of the function is 5/4

As the function is real, Domain = (-∞, ∞)

The function given only has one value. That is the entirety of its range: [3(5/4)^3, 3(5/4)^3]

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The probability that Mia is on time to exactly one of the classes is 0.5

Given that

probability of she is late for the art class (x)= 0.5

probability of she is late for the calculus class(y) = 0.4

the probability of she is not late for the art class (z)= 1 - x = 1 - 0.5 =0.5

the probability of she is not late for the calculus class(p)= 1 - y = 1 - 0.4 = 0.6

the probability that Mia is on time to exactly one of the classes =

Probability of arriving (late for Calculus and on time for Art)) or (late for Calculus and on time for Art)

= (x × p) + (y × z)

=(0.5 × 0.6) +(0.4 × 0.5)

=0.3+0.2

= 0.5

The probability that mia is on time to exactly one of the classes = 0.5

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The smallest perfect number is 6.

Any positive integer whose sum is equal to its divisors is known as a perfect number. A point to be noted is that the number itself is not included here.

If we go serially,

1 cannot be included as its only divisor is the number itself.

2's divisor is 1, and we can clearly see they are not equal.

3's divisor is 1 again. Hence not a perfect number.

4's divisor is 1 and 2.  1 + 2 = 3, which again is not 4.

5's divisor is 1.

6's divisors are 1, 2 and 3.

We can see that 1 + 2 + 3

= 6

Hence, the smallest perfect number is 6.

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6 is the smallest or first perfect number in a mathematics.

Any positive integer in which whose sum is equal to its divisors is known as a perfect number. A point is to be noted that should not be a number itself is not included here as required so the number should be deterministic .

1  is  a number  cannot be included as its only divisor is the number to  itself.

2's divisor is 1, and we can clearly see that  they are not equal.

3's divisor is 1 again. Hence the number 1 is not a perfect number.

4's divisor is 1 and 2.  1 + 2 = 3, which again is not 4.

5's divisor is 1.

6's divisors are 1, 2 and 3.

We can see that 1 + 2 + 3 = 6

Hence, the smallest perfect number is 6.

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The inequality that represent the at most no. of musics played are,

C ≤ 4,  J ≤ 1 and 4C + 0.25C ≤ 12

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a ≤ b.

a is bigger or equal value of an is indicated by the notation a ≥ b.

Given, The radio station plays at most 12 hours of music per day.

Let C denotes classical music, J denotes jazz music,

25% of 4 hours is 1 hour.

∴ The inequality representing this situation is

C ≤ 4 and J ≤ 1.

4C + 0.25C ≤ 12.   (less that  or equal to is atmost)

4.25C ≤ 12.

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By using the rule of construction of a line segment,

The steps for copying line segment AB to create line segment CD in the proper order are given below.

What is a line?

Anything that has only length but no breadth and height is called a line.

Part of a line is called line segment.

The steps for copying line segment AB to create line segment CD in the proper order are

Step 1: Set the compass width to AB

Step 2: Place the compass point at point c and draw an arc

Step 3: Mark a point D anywhere on the arc

Step 4: Draw CD

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the answer is 5 and negative 2

Answer:

8 words per minute.

Step-by-step explanation:

Divide 48 by 6

The probability that the person uses exactly one of the facilities is 0.8.

Given that, there are 120 people in a sport center.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes

Now, the person uses exactly one of the facilities

= 78+46+41-(21+16+24+9)

= 165-70

= 95

So, probability =95/120

= 0.8

Therefore, the probability that the person uses exactly one of the facilities is 0.8.

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If p1, p2 and p3 are probabilities of surviving for years 1, 2 and 3 respectively, then the cumulative probability of surviving for 3 years is p1 + p2 + p3

The probability of surviving for 1 year = p1

The probability of surviving for 2 year = p2

The probability of surviving for 3 year = p3

The probability is the ratio of the number of favorable outcomes to the total number of outcomes.

The cumulative probability is defined as the probability distribution of random variables

The cumulative probability = p1 + p2 + p3

Therefore, the cumulative probability of surviving for 3 years is  p1 + p2 + p3

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Answer:

1). If the algae doubles every day, it will take 15 days for it to cover half the lake. This means it would happen on January 15.

2). Your friend may be skeptical because they may not believe that the algae can grow so quickly and cover the entire lake in just 30 days. Alternatively, they may not believe that you have accurate information about the situation.

3). Removing most of the algae on January 29 would significantly reduce the amount of algae in the lake and would likely help prevent the lake from becoming completely covered. However, if 1% of the surface is still covered with algae on February 1, it is possible that the problem has not been fully solved and the algae could continue to grow and potentially become a problem again in the future. It would be best to continue monitoring the lake and taking action to prevent the algae from growing.

To write, to examine, to take, or to cooperate are examples of verbs that are infinitives. A split infinitive is one that has an adverb between it and the verb itself.

In the given question we have to explain, how we split an infinitive in a sentence.

As we know that,

Split infinitives are grammatical constructions in which the "to" and "infinitive" halves of what is more often referred to as the to-infinitive in modern linguistics are separated by an adverb or adverbial phrase.

To write, to examine, to take, or to cooperate are examples of verbs that are infinitives. A split infinitive is one that has an adverb between it and the verb itself.

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Applying the sine ratio, the value of x is calculated as: x = 6.

The sine ratio is part of the trigonometric ratios that is used to solve a right triangle, which is expressed as:

sin ∅ = opposite side length / hypotenuse length

Given the following:

Apply the sine ratio to find the value of x:

sin 45 = 6√2/x

Multiply both sides by x

sin 45 × x = 6√2

Divide both sides by sin 45:

sin 45 × x / sin 45 = 6√2/sin 45

x = 6√2 / √2/2

x = 6√2 × 2/√2

x = 12/2

x = 6

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The solution of the given linear equation can be obtained as x = 0.4.

The distributive property states that the product of a number and the sum of other numbers is equal to the sum of their individual products.

It can be expressed as a(b + c + d) = ab + ac + ad.

The given linear equation can be solved as follows,

-2.5(4x - 4) = -6

Use distribute property in the RHS to obtain,

-2.5 × 4x - 2.5 × -4 = 6

=> -10x + 10 = 6

=> -10x = -4

=> x = 0.4

Hence, the given equation can be solved as x = 0.4.

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I have no idea im doing the same thing

Question

The two lines graphed below are not parallel. How many solutions are there to

the system of equations?

•A. Infinitely many

•B. Two

•C. Zero

•D. One

D: One is the answer

Step-by-step explanation:

80()#-$/-38३८8३88353738३३

Answer:

The ratio of perch to carp to trout in the pond is 3:3:4, which is the simplest form. This means that for every 3 perch, there are 3 carp and 4 trout.