to find the height of a tree, a group of students devised the following method. A girl walks toward the tree along it's shadow until the shadow of the top of her head coincide with the shadow of the top of the tree. if the girl is 150 cm tall, her distance to the foot of the tree is 13 meters, and the length of her shadow is 3 m, how tall is the tree?

12 snails, give me brainliest pls

Answer:

12 is the correct answer

Step-by-step explanation:

Answer:

Step-by-step explanation:Josh

By comparing the given numbers, Jhon had most money.

As you move to the right on the number line, integers get larger in value. As you move to the left on the number line, integers get smaller in value.

The rules of the ordering and the comparing of the integers are given below:

Given that, John had $800 Tasha has $500 Kyle had $300.

Here, 300<500<800

Therefore, by comparing the given numbers, Jhon had most money.

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Answer:

\(\displaystyle \int\limits^8_1 {\frac{3}{x}} \, dx = 9 \ln 2\)

General Formulas and Concepts:

Calculus

Integration

Integration Rule [Fundamental Theorem of Calculus 1]:                                     \(\displaystyle \int\limits^b_a {f(x)} \, dx = F(b) - F(a)\)

Integration Property [Multiplied Constant]:                                                         \(\displaystyle \int {cf(x)} \, dx = c \int {f(x)} \, dx\)

Area of a Region Formula:                                                                                     \(\displaystyle A = \int\limits^b_a {[f(x) - g(x)]} \, dx\)

Step-by-step explanation:

Step 1: Define

Identify

\(\displaystyle f(x) = \frac{3}{x} \\\left[ 1 ,\ 8 \right]\)

Step 2: Integrate

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Integration

Here,

The midpoint of segment QR is M

m(-2,9) x3=-2,y3=9

Q=(-8,12)x1=-8,y1=12

R=x2,y2

we know that,

\(\tt{ m=\dfrac{Q+R}{2} }\) ⠀

So,

x3=\(\tt{\dfrac{x1+x2}{2} }\) ⠀

\(\tt{-2=\dfrac{-8+x2}{2} }\) ⠀

\(\tt{-2×2=-8+x2 }\) ⠀

\(\tt{x2=8-4 }\) ⠀

\(\tt{x2=4 }\) ⠀

x2=4

now we find the y coordinate y2.

y3=\(\tt{\dfrac{y1+y2}{2} }\) ⠀

\(\tt{9=\dfrac{12+y2}{2} }\) ⠀

\(\tt{9×2=12+y2 }\) ⠀

\(\tt{y2=18-12 }\) ⠀

\(\tt{y2=6 }\) ⠀

y2=6

Now we get the two coordinate of R

so,

R=(x2,y2)=(4,6)

Answer:

60 degrees

Step-by-step explanation:

The bottom and top horizontal lines are parallel. This means x and the bottom right angle in the triangle are the same. Because of the lines going through the triangle's sides we know the triangle's lengths are the same, making it an equilateral triangle. In an equilateral all angles are the same size: 60 degrees.

Given that the region is enclosed by the x-axis and this curve:

You can graph the function using a Graphic Tool:

Noice that the area region you must calculate is:

Notice that it goes from:

To:

Therefore, you can set up that:

In order to solve the Definite Integral, you need to:

- Apply these Integration Rules:

Then, you get:

- Evaluate:

Hence, the answer is:

Answer:

The domain of the function in the graph is option B, 6≤k≤11.

In the given graph, the horizontal axis represents k and the vertical axis represents j. The graph shows a line segment connecting the points (6, 120) and (11, 80). The domain of a function is the set of all possible values of the independent variable (input) for which the function is defined. In this case, k is the independent variable and j is the dependent variable (output).

The line segment in the graph represents a linear function, where the value of j depends on the value of k. The function is defined only between the values of k that correspond to the endpoints of the line segment, which are k = 6 and k = 11. Therefore, the domain of the function is 6≤k≤11.

Answer: B

Step-by-step explanation:

Looking at the orientation of each figure, first we need a reflection over the y-axis, this way the orientation of ABCD will match the orientation of EHGF.

After this reflection, the position of each point will be:

(To find the position after a reflection over the y-axis, we need to switch the signal of the x-coordinates)

Now, let's write the coordinates of EHGF:

Comparing each corresponding pair of points, we can see that in order to map A'B'C'D' into EHGF, we need to decrease the x-coordinates by 4 units and decrease the y-coordinates by 4 units:

Therefore the answers are y, -4 and -4.

Answer:

Phillip's taxable income is $22,985. His tax due, according to the table below, is $2,735.

Step-by-step explanation:

Phillip's Adjusted Gross Income (AGI) is $49,432 and he is claiming two exemptions which give a total of $24,800 in exemptions and deductions. This brings his taxable income to $22,985 ($49,432 minus $24,800 minus $2,647). According to the table below, his tax due for this taxable income is $2,735.

Answer:

70

Step-by-step explanation:

70 because as the number of trials increase, the actual ratio of outcomes will converge on the expected ratio.

On solving the provided question, we can say that - the percentage value of 12 % of 90 = 10.8

A percentage in mathematics is a figure or ratio that is stated as a fraction of 100. The abbreviations "pct.," "pct," and "pc" are also occasionally used. It is frequently denoted using the percent symbol "%," though. The amount of percentages has no dimensions. With a denominator of 100, percentages are basically fractions. To show that a number is a percentage, place a percent symbol (%) next to it. For instance, if you correctly answer 75 out of 100 questions on a test (75/100), you receive a 75%. To compute percentages, divide the amount by the total and multiply the result by 100. The percentage is calculated using the formula (value/total) x 100%.

here,

12% of 90 = 12/100 X 90

= 0.12 X 90 = 10.8

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Answer:

Not sure but my answers will be :

Sin S = 0.28

Sin R = 0.96

Cos S = 0.96

Cos R = 0.28

Answer:

6x^5-5x^4+6x^3-x^2+12x-31

Step-by-step explanation:

(−5x^4+6x^3−43)+(6x^5−x^2+12x+12)

To add, combine like terms

6x^5-5x^4+6x^3-x^2+12x-43+12

6x^5-5x^4+6x^3-x^2+12x-31

Standard form means from the highest power of x to the lowest power of x

The distance between the points are matched as;

1. 10. 6

2. 7. 6

3. 7. 1

Using the Pythagorean theorem, we have that the square of the hypotenuse side is equal to the sum of the squares of the other two sides, we have that;

1. Opposite = 8

Adjacent = 7

Substitute the values

x² =8² + 7²

Find the square

x² = 64 + 49

x = √113

x = 10. 6

2. x²= 3² + 7²

Find the square value

x² = 9 + 49

x² = 58

Find the square root

x = 7. 6

3. x² = 5² + 5²

find the value

x² = 50

x = √50

x = 7. 1

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Answer:

N27.00 remained to be shared between Kemi and Ojo

Step-by-step explanation:

We have an amount of N 45.00.

Sola received 40% of this amount, which means that 100% - 40% = 60% remained to be shared between Kemi and Ojo.

This amount is given by:

0.6*45 = 27

N27.00 remained to be shared between Kemi and Ojo

Answer:

340=10*340 calculated

Answer:

340

Step-by-step explanation:

i know math alot

Since we have that GD = BC, then, by the transitive property:

Now, FH=AE, then, again by the transitive property:

Therefore, AE=GD

Answer:

157

Step-by-step explanation:

180-23=157

Answer:

2.8 cubic feet

Step-by-step explanation:

To solve this problem, let's put the given information into a ratio:

62.5 / 1 = 175 / x

where x is equal to the final number of cubic feet.

Now, we will cross-multiply to solve for x:

62.5x = 175

x = 175/62.5 = 2.8 cubic feet

Hope this helped!

The equation of the possible way to begin solving for x is 2/5x - 7/20x = 3/4 - 1/2

From the question, we have the following parameters that can be used in our computation:

-3/4 + 2/5x = 7/20x -1/2

The first step is to collect the like terms

So, we have

2/5x - 7/20x = 3/4 - 1/2

This represents an equation of the possible way to begin solving for x

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If a sample of 40 teams is selected at random from the population, the expected mean is $750 and the standard deviation is $29.25

The mean of the cost of joining a team = $750

Standard deviation = $185

A sample of 40 teams is selected at random from the population

The expected standard deviation = \(\sqrt{\frac{185^2}{40} }\)

= $29.25

Here the cost of joining a team is normally distributed with a mean of $750

Here the distribution of the cost of joining is normal the mean of the sample distribution, so it will be equal to the mean of the population

The mean = $750

Therefore, the standard deviation is $29.25 and the mean is $750

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STEP 1: a1 = 6.

STEP 2:  r = 0.75

STEP 3: The common ratio is less than one.

STEP 4: The sum of the  Sum of the Infinite Geometric series is Sn = 24

Since we have the expression for the sum of the infinite geometric series

\(\[ \sum_{n=0}^{\infty} 6(0.75)^{n} \]\)

STEP 1:

The first term of the infinite geometric series is 6. Thus, a1 = 6.

STEP 2:

The common ratio of the infinite geometric series is 0.75. Thus, r = 0.75

STEP 3:

The common ratio is less than one.

Because Sn = a/(1 - r)  is the formula we use when the common ratio is less than 1.

STEP 4:

Sn = a/(1 - r)

Sn = 6/(1 - 0.75) = 24

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The value of the variables are a = 3 and b = 3

From the information given, we have that;

2b + a = 13   equation 1

a-b =4         equation 2

Now, multiply equation (2) by 2 to eliminate the variable b, we get;

2b + a = 13

2a - 2b = 8

add the equation, we have;

2b + a + 2a -2b = 13 + 8

add the values, we get;

3a = 21

Make 'a' the subject

a = 7

Then

a - b = 4

-b = -3

b = 3

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       A line's x-intercept and y-intercept are the points at which the x axes- and y-axes, respectively, are crossed. We find it easier to graph linear equations when we consider intercepts.

We set y = 0 and solve the equation for x to determine the x-intercept.

The graphed function derived from the choices has the x-intercept  (-1, 0)

      A graph's x-intercept is the location where the graph crosses the x-axis.

The graph in the accompanying image crosses the x-axis at:

(-2, 0), (-1, 0), (1, 0) and (2, 0) (2, 0)

Consequently,  the x-intercept of the graphed function derived from the alternatives (-1, 0)

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Answer:

y = sec(x-2) - 1

Step-by-step explanation:

We can determine the graph is of a secant by the repeating parabolas. From there, graph sec(x) and add the transformations necessary to replicate the graph.

The requried, local minimum and maxium for the given function is √2 and -√2.

We need to find the local maximum and local minimum of the function \(f(x) = 2x + 4x^{(-1)}.\)

First, we find the derivative of f(x):

\(f'(x) = 2 - 4x^{(-2)} = 2 - 4/x^2\)

Setting f'(x) = 0 to find the critical points:

\(2 - 4/x^2 = 0\)

Solving for x, we get:

x = ±√2

To determine whether these critical points are local maxima or minima, we need to examine the sign of the second derivative:

\(f''(x) = 8x^{(-3)}\)

When x = √2, f''(√2) = 8/(√2)³ = 8√2 > 0, so x = √2 is a local minimum.

When x = -√2, f''(-√2) = 8/(-√2)³ = -8√2 < 0, so x = -√2 is a local maximum.

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Answer:

3.14

Step-by-step explanation:

The value of pi to two decimal places is 3.14. It is a mathematical constant that represents the ratio of the circumference of a circle to its diameter. Pi is an irrational number, which means it cannot be expressed as a finite decimal or fraction. It is an important constant in many fields of mathematics and science, including geometry, trigonometry, and physics. The decimal representation of pi goes on infinitely without repeating, making it an interesting and challenging topic for mathematicians to explore.

Answer:

x=3 y=1 i it's the answer❤