HELP ASAP!!

Determine the surface area of the figure built out of blocks.

A) 30 sq. Units
B) 26 sq. Units
C) 22 sq. Units
D) 19 sq. Units

Answer:

I mean that's quite an interesting question

Answer:

a. When x = -1, the value of y = 3

b. When y = 7, the value of x = 1

c. The y-intercept is (0, 5)

d. The x-intercept is (-2.5, 0)

e. The slope of the line is 2

f. The equation of the line is y = 2x + 5

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

The x-intercept is the value of x at y = 0

From the given graph:

a.

∵ x = -1

→ Look at the graph and find the y-coordinate of the point on

   the line whoes x-coordinate = -1

∴ y = 3

∴ When x = -1, the value of y = 3

b.

∵ y = 7

→ Look at the graph and find the x-coordinate of the point on

   the line whose y-coordinate = 7

∴ x = 1

∴ When y = 7, the value of x = 1

c.

∵ The y-intercept of the graph is the point of intersection of

   the graph and the y-axis

→ Look at the graph and find the y-coordinate of the point on

   the line whose x-coordinate = 0

∴ y = 5

∴ The y-intercept is (0, 5)

d.

∵ The x-intercept of the graph is the point of intersection of

   the graph and the x-axis

→ Look at the graph and find the x-coordinate of the point on

   the line whose y-coordinate = 0

∴ x = -2.5

∴ The x-intercept is (-2.5, 0)

e.

∵ The slope of the line m = Δy/Δx

→ Use the intercepts to find it

∵ The intercepts are (-2.5, 0) and (0, 5)

∴ Δx = 0 - (-2.5) = 2.5

∴ Δy = 5 - 0 = 5

∴ m = 5/2.5 = 2

∴ The slope of the line is 2

f.

∵ The form of the equation of the line is y = m x + b

∵ m = 2

∵ b = 5

∴ y = 2x + 5

∴ The equation of the line is y = 2x + 5

The equation of the line is y = 2.27x + 5.

We are given that;

The graph of the line

Now,

a. When x = -1

y= 3

b. When y = 7

x= 1

c. The y-intercept of the graph= 7

d. The x-intercept of the graph= 3.5

The slope of the line can be calculated using the formula:

slope = (y2 - y1) / (x2 - x1)

where (x1, y1) = (0,5) and (x2, y2) = (-2.2,0).

Substituting the values in the formula we get:

slope = (0 - 5) / (-2.2 - 0) = 5 / 2.2 ≈ 2.27

The equation of the line can be found using the slope-intercept form of a line which is given by:

y = mx + b

where m is the slope and b is the y-intercept.

We already know that m ≈ 2.27.

To find b we can use either of the two points. Let (0,5):

y = mx + b 5 = 2.27(0) + b b = 5

Therefore, by the equation answer will be y = 2.27x + 5.

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A type II error is a statistical term used to describe the failure to reject a false null hypothesis. It occurs when the null hypothesis is actually false but is not rejected because the statistical test failed to find significant evidence against it.

In other words, it happens when an alternative hypothesis is true, but we fail to reject the null hypothesis.

Types of errors in hypothesis testing

There are two types of errors in hypothesis testing:

Type I error: Rejecting a true null hypothesis

Type II error: Failing to reject a false null hypothesis.Type I error occurs when a true null hypothesis is rejected while Type II error occurs when a false null hypothesis is not rejected. These types of errors are inversely related, meaning that a decrease in one type of error causes an increase in the other.

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Answer:

2(x+y)=98 is the answer.

Since x = 8, you would need to plug in 8 into the x.

f(x) = 6x - 4

f(x) = 6(8) - 4

f(x) = 48 - 4

f(x) = 44

So, the correct answer would be C. 44

The outlier, 42, increases the mean, median, and range of the data set, while not affecting the mode.

To identify the outlier in the data set {42, 13, 23, 24, 5, 5, 13, 8}, we need to look for a value that is significantly different from the rest of the data.

The outlier in this data set is 42.

Now let's see how the outlier affects the mean, median, mode, and range of the data:

Mean: The mean is the average of all the values in the data set. The outlier, 42, has a relatively high value compared to the other numbers. Adding this outlier to the data set will increase the sum of the values, thus increasing the mean.

Median: The median is the middle value when the data set is arranged in ascending or descending order. Since the outlier, 42, is the highest value in the data set, it will become the new maximum value when the data set is arranged. Therefore, the median will also increase.

Mode: The mode is the value that appears most frequently in the data set. In this case, there are two modes, which are 5 and 13, as they both appear twice. Since the outlier, 42, does not affect the frequencies of the other values, the mode will remain the same.

Range: The range is the difference between the maximum and minimum values in the data set. As mentioned before, the outlier, 42, becomes the new maximum value. Consequently, the range will increase.

In summary, the outlier, 42, increases the mean, median, and range of the data set, while not affecting the mode.

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Answer:

£817600

Step-by-step explanation:

4÷100=20

20÷4600=320

7×365 it means 1 year=2555

2555×320=£817600

Answer:

Any expression with a 0 exponent is equal to 1.

Answer:

Yes, the lines on the graph at 3 and -3 a part  of the solution,

Step-by-step explanation:

The inequality \(|y| \leq 3\) contains all the values of \(y\) 3 units from the origin including the values 3 and -3.

Thus, the lines on the graph y =-3 and y = 3 are the part of the solution.

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Answer:

5,386,830

Step-by-step explanation:

Answer:

100 Nm

Step-by-step explanation:

Work is said to be done when a force moves a body through a distance. This may be expressed as

work done = Force * distance

where

work done is measured in joules or Newton-meter

Force is measured in newtons and distance in meters

Substituting the given values,

Workdone = 20 * 5

= 100 Nm

= 100J

Therefore, based on the analysis, the sample result of 110 grams is considered unusually low compared to the expected population mean of 118 grams.

To determine if the sample result of 110 grams is unusually low, we can use statistical analysis by comparing the sample mean to the population mean and considering the standard deviation.

Population mean (μ) = 118 grams

Standard deviation (σ) = 14 grams

Sample size (n) = 50

Sample mean (x) = 110 grams

First, we can calculate the standard error of the sample mean using the formula:

Standard Error (SE) = σ / √(n)

SE = 14 / √(50)

≈ 1.98 grams

Next, we can calculate the z-score, which measures the number of standard deviations the sample mean is away from the population mean. The formula for the z-score is:

z = (x - μ) / SE

z = (110 - 118) / 1.98

≈ -4.04

The z-score tells us how many standard deviations the sample mean is below the population mean. In this case, the z-score is approximately -4.04. To determine if the sample result is unusually low, we need to compare the z-score to a critical value. Typically, a z-score beyond a certain threshold (usually 2 or -2) is considered unusual. Using a threshold of 2 standard deviations, if the z-score falls beyond -2, it would indicate that the sample mean is unusually low. In this case, the z-score of -4.04 is significantly below -2, which suggests that the sample mean of 110 grams is indeed unusually low.

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Answer:

18. m<EBC = 43°, m<CBD = 47°

19. m<EBC = 50°, m<ABC = 130°

Step-by-step explanation:

18. Find m<EBC and m<CBD

m<EBC = (5x + 8) and m<CBD = (6x + 5)

these two angles add up to a right angle, therefore their sum is 90°

5x + 8 + 6x + 5 = 90

11x + 13 = 90 , 11x = 77 , x = 7

m<EBC: 5(7) + 8 = 43

m<CBD: 6(7) + 5 = 47

19. Find m<EBC and m<ABC

m<EBC = (3x + 20) and m<ABC = (17x - 40)

these two angles are supplementary, meaning that they add up to 180°

3x + 20 + 17x - 40 = 180

20x - 20 = 180, 20x = 200, x = 10

m<EBC: 3(10) + 20 = 50

m<ABC: 17(10) - 40 = 130

To get the amount of the invested sum after 13 years, we will use the formula:

where

The investment will be worth $5167.29 after 13 years

Answer:

The answer is B. f(–4) = g(–4) and f(0) = g(0)

Step-by-step explanation:

There are 2 places where the lines intersect. the 2 places are -4 and 0.

The points which represent f(x) = g(x) are f(–4) = g(–4) and f(0) = g(0) option (2) f(–4) = g(–4) and f(0) = g(0) is correct.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The question is incomplete.

The complete question is:

Two functions are graphed on the coordinate plane.

Which represents where f(x) = g(x)?

The missing figure is attached to the picture.

From the graph:

f(–4) = g(–4) and f(0) = g(0)

Because the functions have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

Thus, the points which represent f(x) = g(x) are f(–4) = g(–4) and f(0) = g(0) option (2) f(–4) = g(–4) and f(0) = g(0) is correct.

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Answer:

\(A' = (0,0)\)

\(B'= (9,18)\)

\(C'= (21,12)\)

Step-by-step explanation:

Given

\(A= (0,0)\)

\(B= (3,6)\)

\(C= (7,4)\)

\(k = 3\) -- dilation factor

Required

Determine the coordinates of the new triangle

This is calculated using:

\(New = Old * k\)

So, we have:

\(A' = A *3\)

\(A' = (0,0) *3\)

\(A' = (0,0)\)

\(B' = B * 3\)

\(B'= (3,6)*3\)

\(B'= (3*3,6*3)\)

\(B'= (9,18)\)

and

\(C' = C * 3\)

\(C'= (7,4)*3\)

\(C'= (7*3,4*3)\)

\(C'= (21,12)\)

Answer:

24

Step-by-step explanation:

dont exaclty have an explanations - its just the calculations

Answer:

Step-by-step explanation:

y + 3 = 2(x + 2)

y + 3 = 2x + 4

y = 2x + 1

Answer:

Step-by-step explanation:

5+5+6+6+7+7+6+6=48cm

Answer:

thanks

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. 3x2 + 4x2 = 35

2. 3x2 – 28 = 2x2 + 33

3. X2 – 25 = 25

4. 2x2 – 30 = 70

5. 8x2 – 6x2 = 54

6. 3x2 – 6 = 34 – 2x2

7. X2 + 49 = 196

8. 5x2 – 40 = 100

9. 9x2 = 4x2 + 10

10. X2 – 4 = 80

11. X2 + 25 = 100\(\left \{ {{y=2} \atop {x=2}} \right.\)

12. 2x2 + 7 = 67

13. (x2 + 22)= 16

14. (x + 5)2 = 23

15. (x – 4)2 = 11

well, since the y-intercept is at -5, or namely when the line hits the y-axis is at -5, that's when x = 0, so the point is really (0 , -5), and we also know another point on the line, that is (-1 ,6), to get the equation of any straight line, we simply need two points off of it, so let's use those two

\(\stackrel{y-intercept}{(\stackrel{x_1}{0}~,~\stackrel{y_1}{-5})}\qquad (\stackrel{x_2}{-1}~,~\stackrel{y_2}{6}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{6}-\stackrel{y1}{(-5)}}}{\underset{run} {\underset{x_2}{-1}-\underset{x_1}{0}}} \implies \cfrac{6 +5}{-1} \implies \cfrac{ 11 }{ -1 } \implies - 11\)

\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-5)}=\stackrel{m}{- 11}(x-\stackrel{x_1}{0}) \implies y +5 = - 11 ( x -0) \\\\\\ y+5=-11x\implies {\Large \begin{array}{llll} y=-11x-5 \end{array}}\)

Answer:

B: 10

Step-by-step explanation:

The angle measures are all multiplied by 2.

I believe the answer should the 10.

Looking at the two given triangles, the singular line in the bottom left triangles means that the angles are the same. As to the corner seen in cornerF and cornerC, and cornerD with cornerA. Knowing that all of the angles in the triangle are the same, means that the side lengths should all be generally on the same scale.

With triangle DEF, this triangle got scaled up by 2. This can be seen from line AB and line DE. AB was multiplied by two, in order to get line DE, which is 8. Apply the x2 rule to lines DF and EF, and the unknown "e" turns into 10. Unkown "d" turns into 12.

Step-by-step explanation:

The proportion of similar triangles are

\( \frac{3}{4} = \frac{9}{r} \)

Solving for r

\( \frac{4}{3} = \frac{r}{9} \)

\( \frac{9 \times 4}{3} = r\)

\(12 = r\)

Answer:

las fracciones decimales son:

21/10 = 2,1

439/100 = 4,39

34/10 = 3,4

35/1000 = 0,035

851 / 1000 = 0,851

Step-by-step explanation:

Toda fraccion cuyo denominador (el numero de abajo) es multiplo de 10 es considerada una fraccion decimal. No importa si el numerador es mayor al denominador. Justamente el sistema decimal fue concebido para facilitar la multiplicacion y division de los numeros por algun multiplo de 10.

Answer:

the answer to that question is 3

The height of the truncated pyramid is approximately 7.04 units.

A truncated cone or pyramid; the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed.

A truncated triangular prism is equivalent to the sum of three pyramids, whose common base is the base of the prism and whose vertices are the three vertices of the inclined section.

When we enter the specified values into the formula, we obtain:

h² + (1/(4-2))

² = 5²

If we simplify, we get:

h² + 1/2 = 25

By taking away half from each side, we arrive at:

h² = 25 - 1/2 = 49.5

When the two sides are squared, we get:

h = √49.5 ≈ 7.04

Hence, the truncated pyramid is around 7.04 units tall.

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The value of x which is the length of the base of the triangle in the question is; 29 meters

A triangle is a three sided polygon, with three interior angles.

Please find attached the possible diagram in the figure, (created with MS Word), which is a question from a mathematics textbook posted on the internet

The diagram indicates that the altitude or height of the triangle = 8 meters

The specified area of the triangle is; A = 261 square meters

The base length of the triangle = x

The formula for the area of a triangle, A, is; A = (1/2) ×Base length × Height

Therefore;

A = 261 m² = (1/2) × x × 18 m

x = 261 m² ÷ ((1/2) × 18 m) = 29 m

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