Juan went to the store to buy a plant for his mother, but forgot to ask which kind to get. Out of 30 plants, six of them are a kind that his mother would want. If Juan chooses one randomly, what is the probability that he will choose a kind that his mother would want? You will need to change your probability to a decimal and then to a percent.

Answer:

z = -10

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define equation

-4 - (z - 6) = 12

Step 2: Solve for z

Step 3: Check

Plug in z to verify it's a solution.

Here we see that 12 does indeed equal 12.

∴ z = -10 is a solution of the equation.

Answer:

z = -10

Step-by-step explanation:

-4 -(z+6)=12

2-z=12

-z =12-2

ans= z = -10

The values of the given trig functions in terms of sinθ and/or cosθ are:

sinθ = tanθ.cosθ

cosθ = sinθ/tanθ

secθ = 1/cosθ

cscθ = 1/sinθ

tanθ = sinθ/cosθ

cotθ = cosθ/sinθ

From the question, we are to determine the values of the given trig functions in terms of sinθ and/or cosθ

NOTE: tanθ = sinθ / cosθ

∴ sinθ = tanθ.cosθ

From above, we can write that

cosθ = sinθ/tanθ

Secant is the inverse of cosine

∴ secθ = 1/cosθ

Cosecant is the inverse of sine

∴ cscθ = 1/sinθ

tanθ = sinθ/cosθ

Cotangent is the inverse of tangent
∴ cotθ = 1/tanθ

But, tanθ = sinθ/cosθ

∴ cotθ = cosθ/sinθ

Hence, the values of the given trig functions in terms of sinθ and/or cosθ are:

sinθ = tanθ.cosθ

cosθ = sinθ/tanθ

secθ = 1/cosθ

cscθ = 1/sinθ

tanθ = sinθ/cosθ

cotθ = cosθ/sinθ

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Answer:

C. angle ACB is congruent to angle ECD

Step-by-step explanation:

If you drew it out, all you had to figure out from the proof was what a vertical angle is and where are those angles.

Brainliest?

Hope this helps.

Just took the test edu2020

Congruent triangles are similar triangles.

The statement that completes the proof is \(\mathbf{\angle ACB \cong ECD}\)

From the complete question (see attachment), we have the following highlights

The angle at point C of both triangles are congruent

i.e. \(\mathbf{\angle ACB \cong ECD}\)

This means that the missing statement of the proof is that the angles at C of both triangles are congruent.

Hence, the statement that completes the proof is \(\mathbf{\angle ACB \cong ECD}\)

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The first option is correct because 0.14 represents that if a student is a 10th grader, there is a 14% chance he or she has a job.

It is a special type of frequency table that shows relationships between two categories.

From the given table it is clear that 0.14 is the probability of getting a job if a student is a 10th grader,

Option B is incorrect, stating there is a 14% chance a student is a 10th grader if he/she has had a job because we do not know the number of students.

Option C is also incorrect stating that 14% of the students surveyed are 10th graders who have a job because we do not know the total number of students.

Option D is also incorrect because we do not know the number of students.

Therefore, First option is correct because 0.14 represents that if a student is a 10th grader, there is a 14% chance he or she has a job.

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Answer:

A. Given that a student is a 10th grader, there is a 14% chance he or she has a job.

Step-by-step explanation:

Step-by-step explanation:

The amplitude is the value that the cosine is being multiplied by.

The general equation of a sinusoid is

\( a \cos(b(x + c) ) + d\)

where a is the amplitude

\( \frac{2\pi}{ |b| } \)

is the period

-c is the phase shift

d is the midline(vertical shift)

Here the amplitude is -1/2 so b is the correct answer.

Answer:

the amplitude of the function that is y= -1/2 cos x, is 1/2.

Step-by-step explanation:

Answer:

Simplifying

3x + -5 = 6x + -13

Reorder the terms:

-5 + 3x = 6x + -13

Reorder the terms:

-5 + 3x = -13 + 6x

Solving

-5 + 3x = -13 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation.

-5 + 3x + -6x = -13 + 6x + -6x

Combine like terms: 3x + -6x = -3x

-5 + -3x = -13 + 6x + -6x

Combine like terms: 6x + -6x = 0

-5 + -3x = -13 + 0

-5 + -3x = -13

Add '5' to each side of the equation.

-5 + 5 + -3x = -13 + 5

Combine like terms: -5 + 5 = 0

0 + -3x = -13 + 5

-3x = -13 + 5

Combine like terms: -13 + 5 = -8

-3x = -8

Divide each side by '-3'.

x = 2.666666667

Simplifying

x = 2.666666667

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

Answer:

Slope is 1/2

Step-by-step explanation:

Use the slope formula. Say S = the 1st point and T = the 2nd point.

m = 20 - 10                    10                 1

     ------------      =      -----------    =      ---

      20 - 0                     20                2

The equation for slope is also y = mx + b

m is the slope, b is the y-intercept.

Therefore, if you look at the 1st choice, you can see that 1/2 is in the place of m, meaning that 1/2 is the slope of line ST

I dunno how to do the other way

Answer:

1 liter

Step-by-step explanation:

hope this helps!

a.

\( \purple{5 \times 6 - 4 \times ( - 3)}\)

\( = 30 + 12\)

\( \blue{ = \boxed{42}}\)

b.

\( \purple{ {6}^{2} + \frac{6}{ - 3} }\)

\( = 36 - 2\)

\( \blue{ = \boxed{34}}\)

c.

\( \purple{(6 - 5 {)}^{3} + {( - 3)}^{2} }\)

\( = {1}^{3} + 9\)

\( = 1 + 9\)

\( \blue{ = \boxed{10}}\)

Hope it helps

Answer:

the most accurate argument is (C) The transportation and brokerage costs that Suriland's farmers would face if they sold their wheat outside Suriland could amount to almost a dollar per bushel.

Step-by-step explanation:

The cost of transportation and other logistics is being covered by the government that is why the government pay less than dollar per bushel.

so the price of the wheat would have to decrease at home so that the cost of the transportation can be covered by the government who are buying directly from the farmers.

The correct answer is: Construct a scatter plot.The first step in simple regression analysis is to construct a scatter plot.

A scatter plot is a graphical representation of the relationship between two variables, often referred to as the independent variable (X) and the dependent variable (Y).

The scatter plot allows us to visually examine the pattern of the data points and determine whether there is a linear relationship between the variables.

After constructing the scatter plot, we can analyze the pattern and determine if there is a linear trend.

If a linear trend is observed, we can then proceed with building the regression model, finding the slope (also known as the regression coefficient), and assessing the unexplained variation (also known as the residual variation).

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Answer:

Linear

Step-by-step explanation:

The x value side goes up by 7 while y values are going down by 5. Its a constant proportionality of 7 and 5.

An interesting relationship in the population may fail to achieve statistical significance if there are too few observations or sample size is too small.

Statistical significance is a measure of the probability that the observed relationship between variables in a sample could have occurred by chance alone. When a relationship is statistically significant, it means that the probability of observing the relationship by chance is very low, typically less than 5% (p < 0.05).

However, if the sample size is too small, there may not be enough data to detect a real relationship between variables, even if it exists in the population. In such cases, the observed relationship may not be statistically significant, even though it is important and meaningful.

Increasing the sample size can help to increase the power of the analysis, making it more likely to detect a true relationship between variables. Thus, having a sufficiently large sample size is important for achieving statistical significance and for making reliable conclusions about the relationship between variables.

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Answer:

33

Step-by-step explanation:

43-10=33 sarah has 33 bananas ledt

Answer:

a = 7/2

Step-by-step explanation:

Step 1: Write equation

6a - (2a + 4) = 11 - 3(a - 2)

Step 2: Solve for a

The probability of getting a score of 80% or higher on a 5-question true/false quiz when guessing (with a 50-50 chance of being correct) on every question is 1/16, while the probability of getting a score of 80% or higher on a 20-question true/false quiz is 1/1048576.

        What is the probability of getting a score of 80% or higher on a 5-question true/false quiz when guessing (with a 50-50 chance of being correct) on every question

                  A quiz consists of 5 questions. A student guesses each of the questions. The probability of guessing a question correctly is 0.5.

        Therefore, the Probability of getting a score of 80% or higher is = Probability of getting 4 or 5 questions right. To get 4 out of 5, we have to consider all possibilities of choosing 4 out of 5 questions correctly. A number of ways of choosing 4 out of 5 questions correctly is 5.

       A number of ways of guessing the 5 questions is 2^5.

       Therefore, the probability of getting 4 out of 5 correct is 5/32. To get 5 out of 5, we have to consider only one possibility.

       A number of ways of guessing 5 questions is 2^5.

       Therefore, the probability of getting 5 out of 5 correct is 1/32.

        So, the probability of getting a score of 80% or higher = Probability of getting 4 or 5

questions right = 5/32 + 1/32 = 6/32 = 3/16.

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What if instead, the quiz has 20 questions,

           If the quiz has 20 questions, the probability of getting a score of 80% or higher is 1/2^20 = 1/1048576.

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Given the following question:

Point A = (7, 4) = (x1, y1)

Point B = (3, 6) = (x2, y2)

To find the slope use rise over run:

m = -0.5

The slant height of the hexagonal pyramid is: B. 14 inches.

Area of a regular hexagon = 3√3/2(s²)

First, find the area of the regular hexagon:

Area = 3√3/2(s²) = 3√3/2(10²) = 150√3 in.².

Surface area is given as 420 + 150√3 in.².

Area of the 6 triangles = surface area - area of hexagonal base = 420 + 150√3 - 150√3

Area of the 6 triangles = 420 in.²

Area of 1 triangle = 420/6 = 70 in.²

Use the area of a triangle to find the slant height (h):

70 = 1/2(10)(h)

2(70) = 10(h)

140/20 = h

h = 14 in.

The answer is B. 14 inches.

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× whats the point of this

The likelihood of selecting a classmate at random who does not have an A is 6/19.

Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.

To find the probability of a student not having an A, we need to first find the total number of students who do not have an A.

The number of students who have an A is 13, so the number of students who do not have an A is:

19 - 13 = 6

Out of these 6 students, 4 are male and 2 are female.

So, the probability of choosing a student randomly who does not have an A is:

P(not A) = number of students without an A / total number of students

P(not A) = 6 / 19

Therefore, the probability of choosing a student randomly from the class who does not have an A is 6/19.

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Answer:

$21.99

Step-by-step explanation: $28.39

                                            - $  6.40

                                          = $21.99  

Answer:

I think the two answers would be A & D.

Explanation:

Sorry if I'm wrong.

Answer:

The answer is D

The value of x in the given equation 3x + 5 = 2(2x + 4) is x = -3.

How to solve the value of x in equation?

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

3x = 4x + 8 - 5

3x - 4x = 3

-x = 3

x = -3

Hence, the value of x in the given equation 3x + 5 = 2(2x + 4) is x = -3.

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Answer:

33/100

Step-by-step explanation:

Answer:

Step-by-step explanation:

3333333333333 / 100000000000

If your height is 5 feet 3 inches and your weight is 120 pounds, then the BMI is 21.23

To calculate your Body Mass Index (BMI), use the following formula:

BMI = weight in kilograms / (height in meters)²

First, convert your height to meters :

5 feet 3 inches = 63 inches

63 inches = 160.02 cm

160.02 cm = 1.6002 meters

Next, convert your weight to kilograms :

120 pounds = 54.43 kg

Now, plug in these values to calculate your BMI:

BMI = 54.43 kg / (1.6002 meters)²

Divide the terms

BMI = 21.23

Therefore, your BMI is approximately 21.23

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A relationship where the minimum and maximum cardinality are both one is a one-to-one relationship. This type of relationship means that each entity in one entity set is associated with only one entity in the other entity set, and vice versa.

One-to-one relationships are often used in database design to enforce uniqueness and prevent data redundancy. They are commonly used when one entity has a unique identifier that can only be associated with one other entity. For example, in a database for a hospital, each patient may have only one unique medical record, and each medical record may be associated with only one patient.

In contrast, a one-to-many relationship allows each entity in one entity set to be associated with multiple entities in the other entity set, but each entity in the other entity set can only be associated with one entity in the first entity set. A many-to-many relationship allows each entity in both entity sets to be associated with multiple entities in the other entity set.

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A relationship where the minimum and maximum cardinality are both one is a one-to-one relationship. This type of relationship means that each entity in one entity set is associated with only one entity in the other entity set, and vice versa.

One-to-one relationships are often used in database design to enforce uniqueness and prevent data redundancy. They are commonly used when one entity has a unique identifier that can only be associated with one other entity. For example, in a database for a hospital, each patient may have only one unique medical record, and each medical record may be associated with only one patient.

In contrast, a one-to-many relationship allows each entity in one entity set to be associated with multiple entities in the other entity set, but each entity in the other entity set can only be associated with one entity in the first entity set. A many-to-many relationship allows each entity in both entity sets to be associated with multiple entities in the other entity set.

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The percentage increase in the diameter of the drain pipe necessary to enable it to carry 60 litres per second is  28.87%.

Given that the carrying capacity is directly proportional to the area, we can write:

C1 ∝ A1 = πr₁²

Since the carrying capacity is directly proportional to the area, we have:

C2 ∝ A2 = πr₂²

To find the percentage increase in diameter, we need to find the ratio of the increased area to the initial area and then express it as a percentage. Let's calculate this ratio:

(A2 - A1) / A1 = (πr₂² - πr₁²) / (πr₁²) = (r₂² - r₁²) / r₁²

We can also express the ratio of the increased carrying capacity to the initial carrying capacity:

(C2 - C1) / C1 = (60 - 36) / 36 = 24 / 36 = 2 / 3

Since the area and the carrying capacity are directly proportional, the ratios should be equal:

(r₂² - r₁²) / r₁² = 2 / 3

Now, let's substitute r = D/2 in the equation:

((D₂/2)² - (D₁/2)²) / (D₁/2)² = 2 / 3

(D₂² - D₁²) / D₁² = 2 / 3

Cross-multiplying:

3(D₂² - D₁²) = 2D₁²

3D₂² - 3D₁² = 2D₁²

3D₂² = 5D₁²

Dividing by D₁²:

3(D₂² / D₁²) = 5

(D₂² / D₁²) = 5 / 3

Taking the square root of both sides:

D₂ / D₁ = √(5/3)

To find the percentage increase in diameter, we subtract 1 from the ratio and express it as a percentage:

Percentage increase = (D₂ / D₁ - 1) × 100

Percentage increase = (√(5/3) - 1) × 100

Percentage increase = 28.87%

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Answer:

4116

Step-by-step explanation:

2014

12000÷10=1200 (10%)

1200x3=3600

12000-3600=8400

2015

8400÷10=840

840x3=2520

8400-2520=5880

2016

5880÷10=588

588x3=1764

5880-1764=4116

Answer:

x - 2

Step-by-step explanation:

3x² - 5x - 2

Factor the trinomial.

(3x + 1)(x - 2)

Answer: x - 2