Explain the meaning of the scale 1 :100 in words​

Answer:

\(40 + 37 + 30 + 40 + 39 + 41 + 38 + n = 265 + n\)

1)

\( \frac{265 + n}{8} = 43\)

\(265 + n = 344\)

\(n = 79\)

2)

\( \frac{265 + n}{8} = 40\)

\(265 + n = 320\)

\(n = 55\)

3)

\( \frac{265 + n}{8} = 38\)

\(265 + n = 304\)

\(n = 39\)

Answer:

{-2,0,-1}..............

Answer:

x = 7

Step-by-step explanation:

subtract 10 by both sides

4x + 10 = 2x + 24

4x + 10 -10 = 2x + 24 -10

simplfy

4x = 2x + 14

subtract 2x from both sides of the equation

4x -2x = 2x + 14 -2x

simplify

2x = 14

divide both sides of the equation by the same term

2x / 2 = 14 / 2

simplify

x = 7

To solve this problem, we have to understand probability without replacement and consider the two events happening. The probability that both events occurs is 14%

To solve this problem, let's write down the data given;

Data;

But we are asked to calculate the probability that both times we pick both tickets, it would be a concert ticket.

Total number of tickets =

\(12 + 8 = 20\)

Let's proceed for the first event

\(P = \frac{8}{20}= \frac{2}{5}\)

The probability the second event occurs will be

\(P = \frac{7}{20}\)

The probability both events occur will be

\(P = P_a * P_b = \frac{2}{5} * \frac{7}{20} = \frac{7}{50} =0.14 = 14\%\)

The probability that both events occurs is 14%

Learn more on Probability without replacement here;

https://brainly.com/question/11405286

#SPJ1

Answer:

Yes

Step-by-step explanation:

The way the equation is written in point-slope form is:

\(y-y1=m(x-x1)\)

The way we write an equation in slope-intercept form is:

\(y=mx+b\)

We can change point-slope form to slope-intercept form by first distributing the m and then adding y1 to both sides of the equation. When we do this we will get:

\(y=mx-(m*x+y1)\) where \((m*x+y1) = b\)

which is now in slope intercept form.

Step-by-step explanation:

the figure is a combination of

1 half-circle with radius 30/2 = 15

1 inner rectangle 13 width, (13+20)= 33 length.

2 right-angled triangles with 20 being one leg, and (30-13)/2 = 17/2 = 8.5 the other leg.

the area of the half-circle is

pi×r²/2 = pi×15²/2 = pi×112.5 = 353.4291735...

the area of the inner rectangle is

13×33 = 429

the area of one triangle (because they are right-angled, their area is leg1 × leg2 / 2)

20 × 8.5 / 2

but we have 2 triangles, and their total area is then

20 × 8.5 = 170

in total the area of the combined figure is the sum of all 3 numbers :

952.4291735...

this should be the cut-off 3rd answer option 952.4.

Answer:

move the circle around that's how you co-ordinate

Step-by-step explanation:

Mrs. Malik ( my maths teacher ) helped me

Answer:

(x + 3)^2 + (y + 5)^2 = 4^2

Step-by-step explanation:

equation of a circle: (x - h)^2 + (y - k)^2 = r^2

(h,k) is the center and r is the radius

the center of this circle is (-3, -5) and the radius is 4

plug the numbers in

(x + 3)^2 + (y + 5)^2 = 4^2

hope this is good, havent done this unit in a while

If the shape is made up of one half-circle attached to an equilateral triangle with side lengths 20 inches then, the perimeter of the shape is 91.4 inches.

To find the perimeter of the shape, we need to know the length of the curved boundary (the circumference of the half-circle) and the length of the straight boundary (the perimeter of the equilateral triangle).

The radius of the half-circle is half the length of the side of the equilateral triangle, which is 10 inches. Therefore, the circumference of the half-circle is:

C = πr = π(10) = 31.4 inches.

The perimeter of the equilateral triangle is 3 times the length of one side, which is 20 inches. Therefore, the perimeter of the triangle is:

P = 3s = 3(20) = 60 inches

Finally, the perimeter of the entire shape is the sum of the lengths of the curved and straight boundaries:

Perimeter = C + P = 31.4 + 60 = 91.4 inches.

To know more about equilateral triangle

brainly.com/question/3461022

#SPJ4

Complete Question

This shape is made up of one half-circle attached to a square with side lengths 11 inches. Find the perimeter of the shape.

You can use 3.14 as an approximation for π. help i don't know it.

Answer:

B because when at B angels are the same qnd A and c are also same

Answer:

(-2, -5, 3)

Step-by-step explanation:

To solve the systems of equations for...

x + 3y = -17

3x = -6

4x - 3y + 6z = 25

First simplify...

x + 3y = -17

x = -2

4x - 3y + 6z = 25

Then list the determinants and evaluate...

D = -18

D1 = 36

D2 = 90

D3 = -54

Now use Cramer's Rule to find x, y, and z...

x = -2

y = -5

z = 3

Hope this helps! :)

The shop for which Betsie should buy the 250 envelopes from, using proportions, is Value World.

A proportion is a fraction of a total amount, and this fraction is used to build relations, using basic arithmetic operations such as multiplication or division, to obtain the desired measures.

In this problem, the final price is obtained as follows:

Hence the final price at Value World is given as follows:

1.99/10 = 0.119.

She will pay for 2/3 of the 250 packs, as she buys 2 and gets one free, hence:

2/3 x 250 x 0.119 = £19.83.

At Letters2go, the final price is obtained as follows:

3.19/25 x 250 = £31.90.

Due to the lower price, she should purchase her envelopes at Value World.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

Answer:

4 in.

Step-by-step explanation:

The surface area of a cube is the area of one of the faces times 6 for each face.

96/6=16

16 is the area of one face of the cube.

The side of the face is the square root of the area of the face.

√16=4

Answer:

4in

Step-by-step explanation:

I had the same problem but revirsed

Answer:

m=55

Step-by-step explanation:

Since one line equals 180 degrees, 180-125=55

The Macaulay duration of a bond is a measure of the weighted average time until the bond's cash flows are received.

To calculate the Macaulay duration, we need the bond's cash flows and the yield to maturity. In this case, the bond has a coupon rate of 12 percent, sells at a yield to maturity of 14 percent, and matures in 15 years. The second paragraph will explain how to calculate the Macaulay duration.

To calculate the Macaulay duration, we need to determine the present value of each cash flow and then calculate the weighted average of the cash flows, where the weights are the proportion of the present value of each cash flow relative to the bond's price.

In this case, the bond has a coupon rate of 12 percent, so it pays 12 percent of its face value as a coupon payment every year for 15 years. The final cash flow at maturity will be the face value of the bond.

To calculate the present value of each cash flow, we discount them using the yield to maturity of 14 percent.

Next, we calculate the weighted average of the cash flows by multiplying each cash flow by its respective time until receipt (in years) and dividing by the bond's price.

By performing these calculations, we can determine the Macaulay duration, which represents the weighted average time until the bond's cash flows are received.

Learn more about Macaulay duration here:

https://brainly.com/question/32399122

#SPJ11

Answer:

6=4

Step-by-step explanation:

hopefully thia helps

Using the area of a rectangle, it is found that 35 bags are needed to cover the rectangular lawn.

The area of a rectangle of length l and width w is given by the multiplication of the measures, that is:

A = lw

In this problem, we have that the measures in feet are l = 360, w = 190, hence the area in square feet is given by:

A = 360 x 190 = 68,400.

The number of bags is then given by:

68,400/2,000 = 34.2

Rounding up, 35 bags are needed to cover the rectangular lawn.

More can be learned about the area of a rectangle at https://brainly.com/question/10489198

#SPJ1

Doane's rule is used for choosing the number of histogram bins, not for determining the minimum sample size needed for a multiple regression analysis.

However, a commonly cited rule of thumb is that the sample size should be at least 10 times the number of predictors, so for a multiple regression dataset with 3 predictors, a minimum of 30 observations may be recommended.

Doane's rule is a guideline for choosing the number of histogram bins based on the sample size and skewness of the data. It suggests that the number of bins should be approximately equal to 1 + log2(N) + log2(1 + |g1|/SE(g1)), where N is the sample size and g1 is the sample skewness.

It is important to note that Doane's rule is used for determining the number of bins for a histogram, not for determining the minimum sample size needed for a multiple regression analysis.

That being said, in general, the minimum sample size needed for a multiple regression analysis depends on a variety of factors, including the number of predictors, the strength of the relationships between the predictors and the outcome variable, the desired statistical power, and the level of significance. There is no set minimum sample size that applies to all situations. However, a commonly cited rule of thumb is that the sample size should be at least 10 times the number of predictors, so for a multiple regression dataset with 3 predictors, a minimum of 30 observations may be recommended.

Learn more about regression analysis here: brainly.com/question/30011167

#SPJ4

Answer: Total number of males= C

Step-by-step explanation:

The coordinates of the image of the parallelogram are:

C = (-4, 8)

D = (-2, 4)

E = (6, 3)

F = (4, 7)

There are two ways of reflection.

Along x-axis:

(x, y) – (x, -y)

Along y-axis:

(x, y) - (-x, y)

We have,

Parallelogram CDEF with vertices:

C = (-4, -4)

D = (-2, 0)

E = (6, 1)

F = (4, -3)

The parallelogram is reflected over the line y = 2.

This means,

The y-coordinates will change and the x-coordinate will remain the same.

Now,

C = (-4, -4)

There are 6 units between y = 2 and y = -4 so,

C' = (-4, 2 + 6) = (-4, 8)

D = (-2, 0)

There are 2 units between y = 2 and y = 0 so,

D' = (-2, 2 + 2) = (-2, 4)

E = (6, 1)

There are 1 units between y = 2 and y = 1 so,

E' = (6, 2 + 1) = (6, 3)

F = (4, -3)

There are 5 units between y = 2 and y = -3 so,

F' = (4, 2 + 5) = (4, 7)

Thus,

The coordinates of the image are:

C = (-4, 8)

D = (-2, 4)

E = (6, 3)

F = (4, 7)

Learn more about reflections here:

https://brainly.com/question/12463306

#SPJ1

We can be reasonably confident that our estimate adequate sample size of 67% is within 2.5% of the true proportion.

To determine if a sample size of 1,400 is adequate for estimating a proportion of 67%, we need to calculate the margin of error and compare it to the given tolerance level of 0.025.

We can use the following formula to calculate the margin of error:

\(E = z \sqrt{\frac{(p (1-p)}{n} )\)

where:

Plugging in the values, we get:

\(E = 1.96 \sqrt{(0.67 (1-0.67)/1400)\)

≈ 0.025

Thus, the error margin is around 0.025. This indicates that there is a 95% chance that the real percentage will be within 0.025 of the estimated proportion.

We may infer that a sample size of 1,400 is sufficient for predicting a proportion of 67% with the provided degree of confidence and tolerance as the computed margin of error is equal to the required tolerance level. As a result, we can say with some degree of assurance that our estimate of 67% is within 2.5% of the actual proportion.

Learn more about Sample size:

https://brainly.com/question/19131465

#SPJ4

B. the special rule of multiplication.

The joint probability of two independent events is computed using the special rule of multiplication.

When two events are independent, their joint probability is calculated using the special rule of multiplication.

This rule states that the probability of both events occurring together is equal to the product of their individual probabilities. In other words, if A and B are two independent events, then the probability of A and B occurring together is equal to the probability of A multiplied by the probability of B.

For example, if the probability of event A is 0.4 and the probability of event B is 0.5, then the probability of both events occurring together is 0.4 x 0.5 = 0.2.

Learn more about probability

brainly.com/question/31828911

#SPJ11

There are nC2 different votes possible, where n is the number of bands on the list and nC2 represents the number of ways to choose 2 bands out of n.

To calculate nC2, we can use the formula for combinations, which is given by n! / (2! * (n-2)!), where ! represents factorial.

Let's say there are m bands on the list. The number of ways to choose 2 bands out of m can be calculated as m! / (2! * (m-2)!). Simplifying this expression further, we get m * (m-1) / 2.

Therefore, the number of different votes possible is m * (m-1) / 2.

In the given scenario, we don't have the specific number of bands on the list, so we cannot provide an exact number of different votes. However, you can calculate it by substituting the appropriate value of m into the formula m * (m-1) / 2.

Know more about factorialhere:

https://brainly.com/question/18270920

#SPJ11

Answer:1430 ft^3

Step-by-step explanation: you have to divide by 36

The angle formed by a secant and tangent line is GSE (Given-Secant-Exterior).

A tangent is a straight line or curve that touches a given curve exactly once but does not cross it. The tangent is a fundamental concept in geometry and calculus that is used to study the behavior of functions at a specific point.

An external angle is the angle formed by a secant and tangent line at a point on a circle. The abbreviation for this angle is EGS (External Angle-Secant-Tangent).

A secant line intersects a circle at two points, whereas a tangent line intersects the circle at only one. The external angle is formed at the point of tangency by the intersection of the secant and tangent lines outside the circle.

Full question.

Which angle is formed by a secant and tangent line?

A) ANG

B) GSE

B) EGS

C) NGL

To learn more about tangent.

https://brainly.com/question/19424752

#SPJ4

Answer:

Step-by-step explanation:

80        40

___________

 100        50

Answer:

Step-by-step explanation:

1)  because there are 10 total boxes in box 1  and they want 2/5 of them color in 4 boxes to make 4/10  which can reduce to 2/5

2) they say make it unlikey that a blue box will be picked.. so color in one box

3) now don't color any of the boxes.. so no matter which boxes is picked.. there isn't any blue ones. :)

Answer:

-0.329

Step-by-step explanation:

The formula for Geometric ratio is

an = ar^n - 1

Where

a = First term = 18

r = Common ratio = ?

n = Number of term= 6

Hence

a6 = 18 × r^6-1

From the question

a6 = -2/29

Hence:

-2/29 = 18 × r^6-1

-2/29 = 18 × r⁵

Divide both sides by 18

-2/29 ÷ 18 = 18 × r⁵/18

-2/29 × 1/18 = r⁵

r⁵ = -1/261

Take the fifth root of both sides

⁵√(r⁵) = ⁵√(-1/261)

r = -0.3286032834

Approximately = -0.329

Therefore, Common ratio = -0.329

we have to add 7775000 to make 7800000 from 25000 which is calculated by using Substraction method.

Subtraction in mathematics is the process of subtracting one integer from another. In other terms, the result of subtracting two from five is three. After addition, subtraction is usually the second process you learn in math class.Subtraction is the action or procedure of determining the difference between two quantities or figures. The phrase "taking away one number from another" is also used to describe the process of subtracting one number from another.

Distance to be covered altogether= 7800000 m
THE distance has covered= 25000 m.

We can calculate the thousands needs to be added in 25000 to make it 7800000 by using Substraction method:-

7800000-25000= 7775000m

hence, to make 7800000 from 25000 we have to add 7775000.

To know more about Substraction method go through:-

https://brainly.com/question/17301989

#SPJ4