Which expression is the same value as 3(4 times + 9) -6 x

Answer:

  245 ft

Step-by-step explanation:

The geometry of the problem can be modeled by a right triangle in which Meena's height is the side opposite the angle of depression, and the distance to the boat is the side adjacent to the angle of depression. The mnemonic SOH CAH TOA reminds us of the relation ...

  Tan = Oppsite/Adjacent

__

The more useful trig function for this problem is the inverse of the tangent function, the cotangent. Using that function, we have ...

  cot(angle) = (distance to boat)/(Meena's height)

Then the distance to the boat is ...

  distance to boat = (Meena's height)×cot(angle)

The change in distance from A to B is then ...

  A -B = (120 ft)(cot(18°) -cot(44°))

  = (120 ft)(3.0777 -1.0355) ≈ 245.06 ft

The distance from point A to point B is about 245 feet.

The value of x that makes the line containing (1,2) and (5,3) perpendicular to the line containing (x,4) and (3,0) is x = 2.

To determine the value of x such that the line containing (1,2) and (5,3) is perpendicular to the line containing (x,4) and (3,0), we need to find the slope of both lines and apply the concept of perpendicular lines.

The slope of a line can be found using the formula:

slope = (change in y) / (change in x)

For the line containing (1,2) and (5,3), the slope is:

slope1 = (3 - 2) / (5 - 1) = 1 / 4

To find the slope of the line containing (x,4) and (3,0), we use the same formula:

slope2 = (0 - 4) / (3 - x) = -4 / (3 - x)

Perpendicular lines have slopes that are negative reciprocals of each other. In other words, if the slope of one line is m, then the slope of a line perpendicular to it is -1/m.

So, we can set up the equation:

-1 / (1/4) = -4 / (3 - x)

Simplifying this equation:

-4 = -4 / (3 - x)

To remove the fraction, we can multiply both sides by (3 - x):

-4(3 - x) = -4

Expanding and simplifying:

-12 + 4x = -4

Adding 12 to both sides:

4x = 8

Dividing both sides by 4:

x = 2

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The coordinates points of point B are from the given graph is closest to (4, 0).

What is the coordinate point?

The Cartesian coordinates (also called rectangular coordinates) of a point are a pair of numbers (in two dimensions) or a triplet of numbers (in three dimensions) that specified signed distances from the coordinate axis.

We have,

To find:

Which of the following points is closest to (4, 0)?

Also, we have given the graph with points A, B, C, and D.

The coordinate points of each point are from the given graph:

A = (0, -5),

B = (4, 0),

C = (0, 4),

and D = (0, -4).

Therefore, the coordinates points of point B are from the given graph is closest to (4, 0).

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Answer: B

Step-by-step explanation:

yea

Answer: I believe

M = 80

Step-by-step explanation:

100 - 20 = 80

Answer:

The results are the opposite sign of x1 and x2.

\(lenght \: = (x - 8) \: and \: width \: = (x - 9)\)

Step-by-step explanation:

\( {x}^{2} - 17x + 72 = 0\)

\(Δ = {(17)}^{2} - 4(1 \times 72)\)

\(Δ = 289 - 288 = 1\)

\(x1 \: and \: x2 = \frac{17± \sqrt{1}}{2} \)

\(x1 = \frac{17 + 1}{2} = 9\)

\(x2 = \frac{17 - 1}{2} = 8\)

Answer:

A. Lana saves at a greater rate because her unit rate of $50 per week is greater than Eliana's unit rate of $48 per week.

Step-by-step explanation:

Eliana​'s savings per week = the rate of change of the graph

The rate of change of the graph given = \( \frac{y_2 - y_1}{x_2 -x_1} \)

Using the points (0, 0) and (2, 96),

Rate of change = \( \frac{96 - 0}{2 - 0} = \frac{96}{2} = 48 \)

This rate of change means, Eliana puts $48 dollars per week into her account.

Since Lana's saving rate per week is $50, therefore:

Lana saves at a greater rate because her unit rate of ​$50 per week is greater than Eliana​'s unit rate of ​$48 per week.

Answer:

y=1                 x=1

y = 2x – 1

replace y with x

x=2x-1

x-2x =  - 1

-x = -1

x= 1

y=x =1

Answer:

A=0.6

Step-by-step explanation:

Answer:

0.6 is your answer

Step-by-step explanation:

the tenths place is the 1st number after the decimal which would be 5 and you would want to round that up to 6 because the number after it is iver 5 (closer to 10 than it is 1)

hope this helps:) have a good day:)

Answer:

The transformation from f(x) to t(x) can be described as a shift to the right 3 units in the positive x direction.

Step-by-step explanation:

I can’t say anything about the graph g(x) because it’s not defined. Perhaps the relation between g(x) and t(x) was described somewhere else? Otherwise it might have been a typo and they indeed wanted the transformation from f(x) to t(x).

Answer:

.

<_>

.

()_()

.

Step-by-step explanation:

Answer:

multiply the X part of the vector by -1, and then swap X and Y values

Step-by-step explanation:

Answer:

3 and 9

Step-by-step explanation:

x+y=12

y-x=6

y-x=6

 +x.  +x

y=6+x

x+(6+x)=12

6+2x=12

-6.    -6

2x=6

/2. /2

x=3

3+y=12

-3.  -3

y=9

Hopes this helps please mark brainliest

Answer:

C = 14 pi inches

Step-by-step explanation:

The area of a circle is given by

A = pi r^2

49 pi  = pi r^2

Divide each side by pi

49 pi/pi = pi /pi r^2

49 = r^2

Take the square root of each side

7 = r

The circumference is given by

C = 2 * pi *r

C = 2 * pi *7

C = 14 pi inches

Answer:

This is an example of systematic sampling, which is a valid sampling method if the ordering of the individuals in the population does not affect the results. However, it may not be a representative sample if there is any pattern or bias in the order of the individuals.

Using the given information, we can estimate the proportion of people who have used their price plus card as:

38/50 = 0.76

Therefore, we can expect that approximately 0.76 of the 800 people in the store would be using their price plus card:

0.76 x 800 = 608 people.

Answer:

Yes

608 people

Step-by-step explanation:

800 × 38 =30400

30400 ÷ 50 =608

Answer:

A sample size of 3 is required.

Step-by-step explanation:

We have that to find our \(\alpha\) level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\(\alpha = \frac{1 - 0.96}{2} = 0.02\)

Now, we have to find z in the Z-table as such z has a p-value of \(1 - \alpha\).

That is z with a pvalue of \(1 - 0.02 = 0.98\), so Z = 2.054.

Now, find the margin of error M as such

\(M = z\frac{\sigma}{\sqrt{n}}\)

In which \(\sigma\) is the standard deviation of the population and n is the size of the sample.

Based on previous evidence, he believes that the standard deviation is approximately 3.6 hours.

This means that \(\sigma = 3.6\)

He would like to be 96% confident that his estimate is within 5 hours of the true population mean. Use RStudio to determine how large of a sample size is required without rounding any interim calculations.

The sample size needed is of n, and n is found when M = 5. So

\(M = z\frac{\sigma}{\sqrt{n}}\)

\(5 = 2.054\frac{3.6}{\sqrt{n}}\)

\(5\sqrt{n} = 2.054*3.6\)

\(\sqrt{n} = \frac{2.054*3.6}{5}\)

\((\sqrt{n})^2 = (\frac{2.054*3.6}{5})^2\)

\(n = 2.19\)

Rounding up:

A sample size of 3 is required.

The value of 1kg 620g to kg is 1.62 kg

Given the expression 1kg 620g

Since 1000g = 1kg, hence;

620g = 0.62kg

Substitute

1kg 620g = 1 + 0.62

1kg 620g = 1.62kg

Hence the value of 1kg 620g to kg is 1.62 kg

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Answer:

The answer I got was 3.14.

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

i dont know if its correct

Answer:

1073.45 in²

Step-by-step explanation:

The area is the total space taken up by a flat (2-D) surface or shape. The area is always measured in square units.

Diameter is the length across the entire circle, the line splitting the circle into two identical semicircles.

The equation to solve for the area of a circle is:

But wait, we don't have a radius to fix in the equation! Well to solve for the radius when given diameter, we can use the expression:

Now that we know this, we can insert 37 in for the diameter:

So, the radius of the circle is 18.5 inches.

Inserting 18.5 into the expression for the radius:

Using 3.14 for pi:

Therefore, the area of a circle with a diameter of 37 inches is 1073.45 in².

An example of a one-to-one function that is an isomorphism between sets P and Q is the function f: P -> Q defined as f(x) = 2x, where P and Q are the sets of integers.

An example of a one-to-one function that is an isomorphism between sets P and Q is the function f: P -> Q defined as f(x) = 2x, where P and Q are the sets of integers.

This function is one-to-one because for every element x in P, there is a unique element 2x in Q. It is onto because every element y in Q has a preimage x in P such that f(x) = y (e.g., y/2 = x).

Furthermore, this function preserves the group structure between P and Q, as it satisfies the properties of an isomorphism. In this case, the group structure is addition, and the function f preserves addition: f(x + y) = 2(x + y) = 2x + 2y = f(x) + f(y) for all x, y in P.

Therefore, the function f: P -> Q defined as f(x) = 2x is an example of a one-to-one function that is an isomorphism between sets P and Q.

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Answer:

2km north and 5km east

Step-by-step explanation:

count boxes north and boxes east between the points

Answer: Sam is 3 km north and 6 km east of the theater.

Hope this helped! Have a blessed day! :D

Answer:

2/35

Step-by-step explanation:

\(\frac{9}{35}-\frac{1}{5}=\frac{9}{35}-\frac{7}{35}=\frac{2}{35}\)

Answer:

x = 7/3

Step-by-step explanation:

4x - 2 = x + 3 + 2

4x - 2 = x + 5

Rearranging the terms, we get,

4x - x = 5 + 2

3x = 7

x = 7/3

Hence, x = 7/3.

The function has a vertical asymptote at x = -6 and a hole at x = -5.

To find the points of discontinuity, we need to look for values of x that make the denominator of the fraction equal to zero. We can factor the denominator of the rational function as follows:

x² + 11x + 30 = (x + 6)(x + 5)

So the function is undefined for x = -6 and x = -5, since these values make the denominator equal to zero.

These are the points of discontinuity for the rational function.

At x = -6, the function has a vertical asymptote. To see this, we can examine the behavior of the function as x approaches -6 from the left and right:

As x approaches -6 from the left (i.e., x < -6), the denominator becomes a large negative number, while the numerator is a small negative number. So the fraction becomes a large negative number. As x approaches -6 from the right (i.e., x > -6), the denominator becomes a large positive number, while the numerator is a small positive number. So the fraction becomes a large positive number. Therefore, the function has a vertical asymptote at x = -6.

At x = -5, the function has a hole.

To see this, we can factor out the common factor (x + 6) from the numerator and denominator of the fraction:

y = (x + 6)/(x + 6)(x + 5) = 1/(x + 5)

So the function is undefined at x = -5, but we can see that the numerator and denominator have a common factor of (x + 5), which cancels out. Therefore, the function has a hole at x = -5, and can be defined at this point by the limit as x approaches -5:

lim (x -> -5) y = lim (x -> -5) 1/(x + 5) = -∞

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Answer:

Step-by-step explanation:

a, e, f

Answer:

25

Step-by-step explanation:

l x w = h

25 x 7.2 = 180

Answer:

5.82

Step-by-step explanation:

582 / 100 = 5.82

you divide the number by 100 to get your decimal.

We know that z varies directly as √√x and inversely as y, which can be written as:

z = k(√√x)/y

where k is the constant of proportionality.

To find the value of k, we can use the values given when x = 25 and y = 7:

179 = k(√√25)/7

179 = k(5/7)

k = (179*7)/5

k = 250.6

Now we can use this value of k to find z when x = 64 and y = 4:

z = 250.6(√√64)/4

z = 250.6(2)/4

z = 125.3

Therefore, z ≈ 125.3 when x = 64 and y = 4.