Aladder Beans against the side of a house. The angle of elevation of the ladder is 69", and the top of the ladder s 13 ft from the ground. Find the length of the ladderRound your answer to the nearest

Answer:

Let's say the number of sweets that Amol has is A.

According to the problem, the number of sweets that Gemma has is 6 times the number of sweets that Amol has. Therefore, Gemma has 6A sweets.

The number of sweets that Harry has is half the number of sweets that Gemma has. Therefore, Harry has 1/2 * 6A = 3A sweets.

So the ratio of the number of sweets that Amol, Gemma, and Harry have respectively is:

A : 6A : 3A

Simplifying this ratio by dividing each term by A, we get:

1 : 6 : 3

Therefore, the ratio of the number of sweets that Amol has to the number of sweets that Gemma has to the number of sweets that Harry has is 1:6:3

Answer: 15 minutes

Step-by-step explanation:

60 / 4 = 15

15 * 3 = 45

45 / 3 = 15

Answer:

Step-by-step explanation:

Time spent on jump rope = 1/3 of 3/4

                                           \(= \dfrac{1}{3}*\dfrac{3}{4}=\dfrac{1}{4} \ hour\) or 15 minutes

Answer:

E=118

K=50

Step-by-step explanation:

I=E

E=118

K=360-118-118-74 (sum of angles in quad)

K=50

On solving the provided question, we can say that the e slope of the linear regression prediction equation if a person with 12 years of schooling is 1.

When modeling the relationship between a scalar answer and one or more explanatory variables in statistics, linear regression is a linear method. Simple linear regression is used when there is only one explanatory variable. The procedure is known as multiple linear regression if there are numerous. A straight line is used to evaluate the relationship between the independent and dependent variables in a regression model known as simple linear regression. Both factors ought to be quantitative. The effect of the independent variable on the dependent variable is examined using simple linear regression. The second scenario, known as multiple linear regression, examines how various independent factors affect the dependent variable.

the e slope of the linear regression prediction equation if a person with 12 years of schooling

a. 1(correct)

b. 12

c. 13

d. 1,500

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Company A's website receives 2,000 times more visitors per year than company B's website.

To determine how many times more visitors per year the website company A receives than company B, we need to find the ratio of the number of visitors to each website. The number of visitors to company A's website is 8 x 10^6, and the number of visitors to company B's website is 4 x 10^3.

Hence, the ratio of the number of visitors to the two websites is:

8 x 10^6 / 4 x 10^3

Simplifying this expression, we can cancel out a factor of 4 x 10^3 from both the numerator and the denominator:

8 x 10^6 / 4 x 10^3 = 2 x 10^3

Therefore, company A's website receives 2 x 10^3 times more visitors per year than company B's website. This means that for every visitor that company B's website receives, company A's website receives 2,000 visitors.

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3 (hight) × 8 (base) = 24

24 ÷ 2 = 12 (area of triangle)

12 × 2 = 24 (because there are 2 triangles)

5 × 7 = 35 (because length times width)

35 × 2 = 70 (because there are 2 rectangles)

8 × 7 = 56 (because of the base)

24 + 12 + 24 + 35 + 70 + 56 = 221

Answer:

The cost of the car is 26 lei and for ball it is 14 lei respectively

Step-by-step explanation:

The computation of the car and the ball is given below:

Given that

3 balls + 4 cars = 146 lei

3 balls + 7 cars = 224 lei

Based on the above information

3 balls = 146 - 4 cars

3 balls = 224-7 cars

Now

146 -  4cars = 224 - 7 cars

7 cars - 4 cars = 224 - 146

3 cars = 78

1 car = 78: 3 = 26

3 balls = 146 - 4 × 26

3 balls = 146-104

3 balls = 42

a ball = 42: 3 = 14

The cost of the car is 26 lei and for ball it is 14 lei respectively

Answer:

a question with a single correct answer: non statistical

data that consists of numbers: numerical

a question that can have a variety of answers: statistical

Step-by-step explanation:

-

Answer:

150

Step-by-step explanation:

40+120=160+10=170-30=150

The distance between the center of the circle and the given point is 13 units.

The distance between the center of the circle (0, 0) and the given point (-5, 12) should be equal to the radius of the circle.

Using the distance formula,

d= √(-5-0)² + (12-0)²

d = √25 + 144

d = √169

d = 13 unit

Therefore, the distance between the center of the circle and the given point is 13 units.

Any point on the circle will have a distance of 13 units from the center.

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On average, students using method 1 score between 6.46 and 11.94 points higher than students using method 2.

To find the critical value for constructing the 95% confidence interval, we need to use a t-distribution since the sample sizes are relatively small and the population standard deviations are not known.

The degrees of freedom for the t-distribution can be calculated using the following formula:

df = [(s1^2/n1 + s2^2/n2)^2] / [((s1^2/n1)^2)/(n1-1) + ((s2^2/n2)^2)/(n2-1)]

where s1 and s2 are the standard deviations for method 1 and method 2, n1 and n2 are the sample sizes for method 1 and method 2, and df represents the degrees of freedom.

Substituting the given values, we get:

df = [(5.87^2/169 + 17.66^2/128)^2] / [((5.87^2/169)^2)/(169-1) + ((17.66^2/128)^2)/(128-1)]

= 249.00

Using a t-table with 249 degrees of freedom and a 95% confidence level, we find the critical value to be 1.971.

Therefore, to construct the 95% confidence interval for the true difference between testing averages for students using method 1 and students using method 2, we can use the following formula:

CI = (x1 - x2) ± t*(sqrt(s1^2/n1 + s2^2/n2))

where x1 and x2 are the sample means for method 1 and method 2, s1 and s2 are the standard deviations for method 1 and method 2, n1 and n2 are the sample sizes for method 1 and method 2, and t is the critical value we just calculated.

Substituting the given values, we get:

CI = (81.7 - 72.5) ± 1.971*(sqrt(5.87^2/169 + 17.66^2/128))

= 9.2 ± 2.74

= (6.46, 11.94)

Therefore, we can be 95% confident that the true difference between the mean testing scores for method 1 and method 2 lies between 6.46 and 11.94.

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Answer:

Step-by-step explanation:

\(Cos \ 39 = \frac{adjacent \ side}{hypotenuse}\\\\0.7771 = \frac{7}{x}\)

x * 0.7771 = 7

\(x =\frac{7}{0.7771}=9.007\)

x = 9

Answer:

A

Step-by-step explanation:

The rest of the steps are right

Answer:

C. \(z = -20\sqrt{3}-i\,20\)

Step-by-step explanation:

The rectangular form of a complex number is represented by the following formula:

\(z = a+i\,b\) (1)

Where each coefficient can be determined as function of the polar components:

\(a = r\cdot \cos \theta\) (2)

\(b = r\cdot \sin \theta\) (3)

Where:

\(r\) - Magnitude of the complex number, dimensionless.

\(\theta\) - Direction of the complex number, measured in radians.

If we know that \(r = 40\) and \(\theta = \frac{7\pi}{6}\), then the rectangular form of the number is:

\(a = 40\cdot \cos \frac{7\pi}{6}\)

\(a = -20\sqrt{3}\)

\(b = 40\cdot \sin \frac{7\pi}{6}\)

\(b = -20\)

The rectangular form of \(z=40\cdot\left(\cos \frac{7\pi}{6}+i\,\sin \frac{7\pi}{6}\right)\) is \(z = -20\sqrt{3}-i\,20\). The correct answer is C.

Answer: c

Step-by-step explanation:

edge

Answer:

35x-35y+21

Step-by-step explanation:

You would have to combine the like terms together to get 35x-35y+21.

By applying algebra properties we notice that the algebraic expression 0.5 · (20 · x - 50 · y + 36) - 0.25 · (- 100 · x + 40 · y - 12) is equivalent to 35 · x - 35 · y + 21. (Correct choice: D) #SPJ5

In this question we must simplify an algebraic expression by applying the following list of properties:

Now we proceed to simplify the expression given in the statement:

0.5 · (20 · x - 50 · y + 36) - 0.25 · (- 100 · x + 40 · y - 12)     Given

10 · x - 25 · y + 18 + 25 · x - 10 · y + 3     Distributive and associative properties/Definition of multiplication

35 · x - 35 · y + 21     Result

By applying algebra properties we notice that the algebraic expression 0.5 · (20 · x - 50 · y + 36) - 0.25 · (- 100 · x + 40 · y - 12) is equivalent to 35 · x - 35 · y + 21. (Correct choice: D) #SPJ5

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Answer:

2.2% per year

Step-by-step explanation:

Problem:

You deposit $500 into a bank account and received $55 simple interest after 5 years. What had been the interest rate?

Result:

The interest rate was 2.2% per year.

Explanation:

Find interest rate by using the formula I = P*i*t , where I is interest, P is total principal, i is rate of interest per year, and t is total time in years.  In this example I = $55, P = $500 and t = 5 years, so

i = 55/500*5

i=0.022 = 2.2% per year

Hope it helps XD

Answer:

5/6

Step-by-step explanation:

1/2 + 1/3 You first multiply 1/2 by 3 and 1/3 by 2

3/6 + 2/6 then you add

5/6

Step-by-step explanation:

1/2 + 2/3

find the LCM of 2 and 3

LCM =6

1/2 + 2/3

(you'll divide 6 by the denominator and multiply by the numerator)

denominator= the figure down(2 &3)

numerator= the figure up (1 & 2)

= 3/6 +4/6

=7/6

Therefore, the probability that the target will be missed on a given day is 0.22, or 22%.

To calculate the probability that the target will be missed on a given day, we need to consider the two scenarios: receiving over 400 calls and receiving 400 calls or less.

Scenario 1: Receiving over 400 calls

The probability of receiving over 400 calls is given as 0.2, and the probability of missing the target in this case is 0.7.

P(Missed Target | Over 400 calls) = 0.7

Scenario 2: Receiving 400 calls or less

The probability of receiving 400 calls or less is the complement of receiving over 400 calls, which is 1 - 0.2 = 0.8. The probability of missing the target in this case is 0.1.

P(Missed Target | 400 calls or less) = 0.1

Now, we can calculate the overall probability of missing the target on a given day by considering both scenarios:

P(Missed Target) = P(Over 400 calls) * P(Missed Target | Over 400 calls) + P(400 calls or less) * P(Missed Target | 400 calls or less)

P(Missed Target) = 0.2 * 0.7 + 0.8 * 0.1

P(Missed Target) = 0.14 + 0.08

P(Missed Target) = 0.22

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Answer:

i added all the values because the total angle of the interior triangle should give 180 °.

Answer:

Agriculture

Step-by-step explanation:

Quadratic equations are also used in agriculture. One of these uses is in finding out the optimal arrangement of boundaries to produce the biggest fields and pens given the materials on hand. Area is the length of a surface multiplied by its width. This turns calculations involving areas into quadratic equations.

Answer:

The identity function has a slope of m = 1 and a y-intercept of (0, 0) .

Step-by-step explanation:

The identity function is a special type of linear function having the form f(x) = x . The domain of this function is all real numbers and the range consists of all real numbers .

For given function the correct solution is g'(t) = 20 for some t in the interval.

A function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

For a given function, y = F(x), if the value of y is increasing on increasing the value of x, then the function is known as an increasing function and if the value of y is decreasing on increasing the value of x, then the function is known as a decreasing function.

Given that g(10)= 220

g(0)= 20

So putting values in condition of differentiation for increasing function we get:

\(\frac{g(10)-g(0)}{10-0}\)

= \(\frac{220-20}{10}\)

=20

Hence as we can see that the correct solution for given function is g'(t) = 20 .

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A function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

Given that g(10)= 220

g(0)= 20

So putting values in condition of differentiation for increasing function we get:

= 220-20/2

=20

Answer:

36 i think

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

\(S_{n}\) = \(\frac{a(1-r^{n}) }{1-r}\)

63 = -3(1 - \(-2^{n}\)) / (1- -2)

63 = (-3 + \(6^{n}\))/3

63 = -1 + \(2^{n}\)

64 = \(2^{n}\)

n = 6

Answer:

Nickel is not a layer of earth. It is a white metal that belongs to the group of transition metals and is said to be present in the core of the Earth. Sial- refers to the upper layer of the Earth's crust. This layer has an abundance of minerals having aluminum and silicates.

Answer:

I dont see the following but these are the layers of the Earth

Step-by-step explanation:

There are 34 cows will graze the same field in 10 days.

We have to given that;

55 cows can graze a field in 16 days.

Since, Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Now, Let us assume that,

Number of cows graze the same field in 10 days = x

Hence, By proportion we get;

55 / 16 = x / 10

Solve for x;

550 / 16 = x

x = 34

Thus, There are 34 cows will graze the same field in 10 days.

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