I WILL MARK BR HELP PLZ

Answer:

b

Step-by-step explanation:

The diagram of water cycle is attached below.

The best describes the process occurring at U and X is Water changes from a liquid to a gas.

The process that occurs at the position of U and X is discussed when water transforms from a liquid to a gas. This is called Evaporation.

The following are the situations that should not be arisen at the location U and X:

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The value of x after solving the fraction \(-\frac{1}{3}\left(9x+42\right)-5x=-70\)  is 7.

Given fraction:

⇒ \(-\frac{1}{3}\left(9x+42\right)-5x=-70\)

⇒ -9x/3 - 42/3 - 5x = -70

⇒ -3x - 14 - 5x = -70

⇒ -8x -14 = -70

⇒ -8x = -70 + 14

⇒ -8x = -56

⇒ 8x = 56

divide by 8 on both sides

8x/8 = 56/8

x = 56/8

x = 7.

Therefore The value of x after solving the fraction \(-\frac{1}{3}\left(9x+42\right)-5x=-70\)  is 7.

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We will see that the real exchange rate is approximately 1.447 markas per U.S. dollar.

Here we need to perform a change of units procedure.

We know that the price of a refrigerator in Bosnia is 1964 markas, while in the US is $1357.

Then we can write the relation:

1964 markas = $1357

Now, we want to find the value in markas for a single dollar, then we divide both sides by 1357 to get:

(1964 markas)/1357 = $1357/1357

1.447 markas = $1

This means that the exchange rate is 1.447 markas per U.S. dollar.

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Answer:

replace m with 2 and do 7(2)+9

It is verified that the difference of two consecutive squares is never divisible by 2; that is, 2 does not divide (a+1)^2-a^2 for any choice of a.

Let's begin by squaring a+1 and a.

The following is the square of a+1: \((a+1)^{2}=a^{2}+2a+1\)

And the square of a: \(a^{2}\)

The difference between these two squares is: \( (a+1)^{2}-a^{2}=a^{2}+2a+1-a^{2}=2a+1 \)

That implies 2a + 1 is the difference between the squares of two consecutive integers.

Now let's look at the options for a:

Case 1: If a is even then a = 2n (n is any integer), and therefore, 2a + 1 = 4n + 1, which is an odd number. An odd number is never divisible by 2.

Case 2: If a is odd, then a = 2n + 1 (n is any integer), and therefore, 2a + 1 = 4n + 3, which is also an odd number. An odd number is never divisible by 2.

As a result, it has been verified that the difference of two consecutive squares is never divisible by 2.

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The Justification for the 5th statement is option B Distance formula.

The distance formula is one that is seen as a mathematical formula used to calculate the distance that exist between two points in a coordinate plane.  it is seen as:

The distance between two points (x₁, y₁) and (x₂, y₂) is given by:

d = \(\sqrt{(x_{2} - x_{1} )^2 + (y_{2} -y_{1} )^2}\)

In this formula,  (0,0) to  (0, 2) will be inputted as:

d = \(\sqrt{(0 - 0 )^2 + (2 -0 )^2} = \sqrt{2^2} = 2\)

Therefore  this statement of the justification is also the distance Formula,  so we assume the distance from (0,0) to  (1, √2) that brings about 2 and is also seen as the radius of the circle.

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The expression 5⁴/5² will result in 5².

In such a fraction, the value that appears above the horizontal line is referred to as the numerator.

It represents the number of pieces removed from the whole. The denominator of a fraction is the numerical value that comes before the brings together various.

In another word, if we divide two numbers by each other then the upper word is called the numerator, and a lower word is called the denominator.

For example a fraction 1/5 here 1 will be the numerator and 5 will be denominated.

Given that, 5⁴/5²

5⁴/5² = 5²×5²/5²

⇒ 5²

Hence "The expression 5⁴/5² will result in 5²".

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Answer:

C

Step-by-step explanation:

To find (g ￮ f)(x), substitute x = f(x) into g(x) , that is

g(2x - 5)

= 3(2x - 5) + 4

= 6x - 15 + 4

= 6x - 11 → C

All the points on the graph represent the possible solution coordinates of the function y = |x| - 7.

Given is the expression as -

y = |x| - 7

The given function is -

y = |x| - 7

Refer to the graph of the function attached. All the points on the graph represent the possible solution coordinates of the function {y}.

Therefore, all the points on the graph represent the possible solution coordinates of the function {y}.

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The 95% tolerance limits that contain 95% of the diameters is 2.262

Diameter:

In math, the straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end is known as diameter.

Given,

Here we need to find the 95% tolerance limits that contain 95% of the diameters estimation of the mean diameter, while important, is not nearly as important as trying to pin down the location of the majority of the distribution of diameters.

According to the given question we have identified the following values,

Tolerance percentage = 95%

Diameter percentage = 95%

x = 61,492

n = 10

s = 3035

c = 95% = 0.95

Now, the value of t is determine by looking in the row starting with degrees of freedom 

=> df = n−1 = 10−1 = 9 and in the column with 

=> α/2 = (1−c)/2

=>0.025 

Then as per the table of the Student’s T distribution:

=> tα​=2.262

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1. The upper bound for the perimeter of the regular hexagon is 21.9 cm.

2. All figures on the calculator display for the calculation of Kelly's average speed is: 99.5 / 10.51 = 9.46717412

3. the lower bound for the area of the rectangle is 2.55 × 10⁵ mm²

4. Upper bound for area = 937.6525 cm²

1. The upper bound for the perimeter of the regular hexagon can be calculated by multiplying the length of one side by 6 (the number of sides in a hexagon):

Upper bound for perimeter = 6 × (3.6 + 0.05) = 21.9 cm (rounded to one decimal place)

2. Kelly's average speed can be calculated by dividing the distance she ran by the time she took:

Average speed = distance / time

The lower bound for the distance is 99.5 m (since 100 m was measured to the nearest meter, the actual distance could be as low as 99.5 m).

The lower bound for the time is 10.51 s (since 10.52 s was measured to the nearest hundredth of a second, the actual time could be as low as 10.51 s).

Therefore, the lower bound for Kelly's average speed is:

Average speed = 99.5 / 10.51 = 9.4617 m/s (rounded to 4 decimal places)

3. The length of the rectangle is 645 mm correct to the nearest 5 mm, which means it could be as small as 642.5 mm or as large as 647.5 mm. We can express this as:

645 mm ± 2.5 mm, similarly

400 mm ± 2.5 mm

Lower bound for length = 645 - 2.5 = 642.5 mm

Lower bound for width = 400 - 2.5 = 397.5 mm

Lower bound for area = 642.5 × 397.5 = 255393.75 mm²

Rounded to 3 significant figures, the lower bound for the area of the rectangle is 2.55 × 10⁵ mm².

4. To calculate the upper bound for the area of the rectangle, we need to multiply the upper bounds for the length and width of the rectangle:

Upper bound for length = 35 + 0.45 = 35.45 cm

Upper bound for width = 26 + 0.45 = 26.45 cm

Upper bound for area = 35.45 × 26.45 = 937.6525 cm²

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Answer:

-66

Step-by-step explanation:

y = 4

3(5y - 42)

3(5(4) - 42)

3(20 - 42)

3(-22) = -66

Answer:

-66

Step-by-step explanation:

3(5×4-42)

(5×4)=20

3(20-42)

(20-42)=22

3(22)=66

so it's -66

Answer:

6

Step-by-step explanation:

Add three to both sides

Subtract 2x from both sides

2x=12

Divide by 2

X=6

Answer:

x = 6

Step-by-step explanation:

4x - 3 = 2x + 9

2x = 12

x = 6

Step-by-step explanation:

144° + m5 = 180°

m5 = 180° - 144°

m5 = 36°

m5 + 56° + m4 = 180°

m4 = 180° - 56° - 36°

m4 = 88°

m3 + 56° = 180°

m3 = 180° - 56°

m3 = 124°

since the 2 horizontal lines are parallel:

m1 = m5 = 36°

m2 = 56°

Answer:

9.3 units

Step-by-step explanation:

By Pythagoras Theorem:

\( {x}^{2} + {(18 - 5)}^{2} = {16}^{2} \\ \\ {x}^{2} + {13}^{2} = {16}^{2} \\ \\ {x}^{2} + 169 = 256 \\ \\ {x}^{2} = 256 - 169 \\ \\ {x}^{2} = 87 \\ \\ x = \sqrt{87} \\ \\ x = 9.32737905 \\ \\ x \approx9.3\)

Answer:

Step-by-step explanation:divide both sides by the coefficient of x that is the number beside x and in inequality, when dividing with a negative sign the sign would change to its opposite sign.

-6<-2x

-6/-2>-2x/-2

3>x

X<3 this is the answer.

Answer:

7.35 pints

Step-by-step explanation:

If we use 1/4 of the 9.8 pints for blue, then the remaining white paint takes up 3/4 of the 9.8 pints of paint. To find how many pints of paint is equal to 3/4 of it, you must multiply that fraction by the amount (9.8).

\(\frac{3}{4}\) * 9.8 (or 0.75 * 9.8) = 7.35

Therefore, 7.35 pints of the total paint used is white.

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Answer:   The equation represents a linear function because it has an independent and a dependent variable, each with an exponent of 1.

Step-by-step explanation:

The equation y = 2x - 4 is written in slope intercept form.   y is dependent on the x.

Answer:

Step-by-step explanation:

answer A

Answer:

Step-by-step explanation:

f(0) = √49 - x^2

f(0) means that wherever you see an x on the right, you put a zero.

so f(0) = √49 - 0^2

f(0) = √49

f(0) = 7

f(-7) = √49 - x^2

Again the meaning is that where you see an x on the right, you substitute - 7 for that x.

f(-7) = √49 - (-7)^2

f(-7) = 7 - 49

f(-7) = - 42

f(9) = √49 - (9)^2

f(9) = 7 - 81

f(9) = - 74

A major arc is an arc that is greater than 180 degrees.

A minor arc is an arc less than 180 degrees.

An acute angle is an angle less than 90 degrees.

A central angle is an angle created in the center of a circle with 2 sides being the radius.

Thus, we can see in the figure that we are talking about the angle so we can eliminate the major arc and minor arc.

Now, we clearly see that the angle is greater than 90 degrees so it cannot be an acute angle.

The correct answer is the central angle as it goes with the definition.

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Answer:

25x^6

Step-by-step explanation:

:)

The differential effect of inductive instructions and deductive instructions refers to the impact that these two types of instructional approaches have on learning and problem-solving abilities.

Inductive instructions involve presenting specific examples or cases and then drawing general conclusions or principles from them. This approach encourages learners to identify patterns, make generalizations, and develop hypotheses based on the observed data. Inductive reasoning moves from specific instances to a broader understanding of concepts or principles.

On the other hand, deductive instructions involve presenting general principles or rules first and then applying them to specific examples or cases. This approach emphasizes logical reasoning, where learners are guided to apply established rules to solve problems or make conclusions based on given premises. Deductive reasoning moves from a general understanding of concepts or principles to specific instances.

The differential effect of these two instructional approaches can vary depending on various factors, such as the learner's prior knowledge, cognitive abilities, and the nature of the task or subject matter.

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The true proportion of the side lengths of the quadrilaterals is A'B'/AB

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

Quadrilaterals ABCD and A'B'C'D

These quadrilaterals are similar

So, it means that the corresponding side lengths are proportional

So. we have

Side length = AB

Corresponding side length = A'B'

The true proportion is then represented as

k = Corresponding side length/Side length

Substitute the known values in the above equation, so, we have the following representation

k = A'B'/AB

Hence, the proportion is A'B'/AB

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A manufacturer of compact fluorescent light bulbs advertises have a standard deviation of 1,000 hours so the values are:

A normal distribution with,

μ = 9000

σ = 1000

a) The standardized score is the value x decreased by the mean and then divided by the standard deviation.

x = 105000 - 9000 / 1000 ≈ 1.50

Determine the corresponding probability using the normal probability table in appendix,

P(X>10500) = P(Z>1.50) = 1 - P(Z<1.50)

= 1 - 0.9332 = 0.0668.

b) n = 15

The sampling distribution of the mean weight is approximately normal, because the population distribution is approximately normal.

The sampling distribution of the sample mean has mean μ and standard deviation σ/√n

μ = 1000/√15 = 258.19

c) The sampling distribution of the sample mean has mean μ and standard deviation σ/√n

The z-value is the sample mean decreased by the population mean, divided by the standard deviation:

z = x-u/σ/√n = 10500-9000/1000√15 = 5.81

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Answer:

45%

Step-by-step explanation:

18 divided 40 =

18/40 =

9/20 = .45

.45 <- move the decimal to 2 spaces to the right =

45%