Keely went for a long swim. If she swam 12 miles in 3 hours, how long would she swim in 6 hours?​

Answer:

Let x be the measure of the first angle, then its complementary angle measures 90° - x.According to the problem, we have:x = (90° - x) + 88.8°Simplifying this equation, we get:x = 178.8° - xAdding x to both sides, we get:2x = 178.8°Dividing both sides by 2, we get:x = 89.4°Therefore, the first angle measures 89.4°, and its complementary angle measures 90° - 89.4° = 0.6°.

Answer:

A

Step-by-step explanation:

the order of letter should resemble the same shape

Answer:

Step-by-step explanation:

cos²x =3sin²x                     subtract both sides by 3sin²x

cos²x - 3sin²x = 0               use identity  cos²x+sin²x=1  => cos²x = 1-sin²x

                                           substitute in

(1-sin²x)-3sin²x = 0             combine like terms

1-4sin²x=0                           factor using difference of squares rule

(1-2sin x)(1+2sin x)=0          set each equal to 0

(1-2sin x)=0                                        (1+2sin x)=0

-2sinx = -1                                               2sinx= -1

sinx=1/2                                                    sinx =-1/2

Think of the unit circle.  When is sin x = ±1/2

at \(\pi /6, 5\pi /6, 7\pi /6, 11\pi /6\)

This is from 0<x<2\(\pi\)

Answer:

If top readers read at speeds of above 1000 words per minute (wpm) with near 85% comprehension, they only represent 1% of readers. Average readers are the majority and only reach around 200 wpm with a typical comprehension of 60%. ... The average reader is five times slower than the good reader.

Step-by-step explanation:

The difference between 1/9 and 1/3 in simplest form is -2/9.

To find the difference between two fractions, you need to follow these steps:

1. Find the least common denominator (LCD) of the fractions, which is the smallest multiple of their denominators. In this case, the denominators are 9 and 3.

The LCD is 9 since it is the smallest number that both 3 and 9 can divide into.

2. Convert the fractions to equivalent fractions with the LCD as the new denominator.

For 1/9, you don't need to do anything as it already has the denominator 9. For 1/3, multiply the numerator and denominator by 3 to get 3/9.

3. Now you have the fractions 1/9 and 3/9. Subtract the numerators while keeping the denominator the same: (1 - 3)/9.

4. Simplify the resulting fraction. In this case, you get -2/9.

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Planning, designing, gathering data, analyzing, creating relevant interpretations, and publishing the research findings are all statistical approaches that go into conducting a study.

The statistical analysis lends meaning to the abstract numbers, giving the data some life. Only when appropriate statistical tests are applied will the results and inferences be accurate. Science's field of statistics deals with gathering, organizing, analyzing, and extrapolating data from samples to the entire population. This necessitates the use of an acceptable statistical test, an adequate study design, and an appropriate study sample selection.  However, if we want additional information about these, a consulting company may be able to assist us. we will benefit more from Silver Lake Consulting for our project.

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Answer:

35% percentage decrease

Step-by-step explanation:

so 570.7/878 is 0.65

which is 65 percent

but we need to know the decrease percentage so

100-65=35

Answer:

\(\frac{xy^4}{5}\)

Step-by-step explanation:

Step 1- The x variables cross each other out.

Step 2- y^5-y= y^4

Step 3- 15÷3= 5

Hope this helps! :)

Answer:

6a2-3ax+3a

Step-by-step explanation:

Answer:

Step-by-step explanation:

3a(2a-x+1)

= 6a² - 3ax + 3a

Geometric solids with circular cross-sections include cylinders, cones, and spheres. Geometric solids with circular cross-sections include cylinders, cones, and spheres. And Cylinders, cones, and spheres can be created by rotating a two-dimensional shape about an axis.

1. Cylinder: A cylinder is a 3-dimensional solid that has two parallel circular bases connected by a curved surface. Cylinders are commonly found in everyday objects like soda cans and water bottles.

2. Cone: A cone is a 3-dimensional solid that has a circular base and a curved surface that tapers to a point. Cones are often used in architecture, like on the top of a church steeple.

3. Sphere: A sphere is a 3-dimensional solid that has a circular shape in all directions. Spheres are found in many natural objects like planets and fruit, as well as in man-made objects like Christmas ornaments.

Geometric solids with circular cross-sections are used in various fields, including architecture, engineering, and science. They are used for creating objects such as cans, pipes, towers, and buildings. These shapes are also used for modeling the natural world, such as the earth, planets, and the stars.

Cylinders, cones, and spheres can be created by rotating a two-dimensional shape about an axis. For instance, a circle that is rotated around its center axis forms a cylinder. Similarly, a triangle that is rotated around one of its sides forms a cone, while a circle that is rotated around its center axis forms a sphere.

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Triangle EFG was transformed to create triangle E'F'G' with identical side lengths and angle measures, and the second triangle is rotated to the right. the transformation is a c. rotation. Therefore, option c. rotation is correct.

Rotation is the change that took place. A figure is transformed by a rotation in which the centre of rotation is moved from one side to the other. Triangle EFG was in this instance rotated to the right, or around a point to the left of the triangle.

The two triangles are said to be congruent if their side lengths and angle measurements are the same. As a result, they are capable of being changed into one another by a series of translations, rotations, and reflections.

A transformation known as a translation involves moving a figure while maintaining its original size and shape. Stretching is a transformation that increases a figure's size while maintaining its shape. A transformation that flips a figure over a line is called a reflection.

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Answer: c. rotation is correct.

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

Step-by-step explanation:

f(x) = x2  ...  when 'x' is equal to 5

So...

1.) Plug in 5 for the variable 'x'

f(5) = (5) * (2)

2.) Simplify both sides of the equation

5f = 10

3.) Divide both sides by 5

5f /5  =  10/5

f = 2

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hope I helped!!!

GL :)

Answer:

Paulina is reading a book with 677pages total. If she has already read 345 and plans to read 23 pages a day, how many days, x, will she nees to read at that pace until she finishes the entire book?

Step-by-step explanation:

\(345 + 23x = 677\)

23x=677-345

x=677-345/23

x=332/23

x= 14.43 days

Answer:

A.004

Step-by-step explanation:

I been Doing this for some Years And I knw it cuz I go on it EvenyDay

The variable of years of experience in Marty's study illustrates an example of ordinal level data.

The variable of years of experience in Marty's study represents a categorical variable that is ordered or ranked. It falls under the ordinal level of measurement. Ordinal data involves categories or groups that have a specific order or hierarchy, but the differences between the categories may not be equal or measurable. In this case, the teachers are grouped based on the number of years of experience they have, and these groups are arranged in a specific order: 4 or less years, 5-10 years, 11-20 years, and more than 20 years. The categories have a natural order, but the difference between each category is not uniform or quantifiable. For example, the difference between 4 years and 5 years of experience is not necessarily the same as the difference between 10 years and 11 years. Therefore, the variable of years of experience in Marty's study represents ordinal level data.

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The sentence "If it is a dog (d), it has fleas (f)" can be represented in symbolic form as d → f.

In symbolic logic, we represent the components of a sentence using letters or symbols. In this case, the given sentence has two components: "it is a dog" and "it has fleas." To represent these components, we assign the letter 'd' to "it is a dog" and the letter 'f' to "it has fleas."

The sentence "If it is a dog, it has fleas" implies a conditional relationship between the two components. It states that if something is a dog (d), then it has fleas (f). This can be symbolically represented as d → f, where the arrow (→) denotes the conditional relationship.

The given sentence, "If it is a dog (d), it has fleas (f)," can be represented in symbolic form as d → f. The arrow (→) in symbolic logic represents the conditional relationship. It indicates that if something is a dog (d), then it has fleas (f). In this symbolic representation, 'd' stands for "it is a dog," and 'f' represents "it has fleas."

The sentence is a conditional statement because it presents a hypothetical relationship between the two components. The truth value of the sentence depends on whether the antecedent (d) is true or false. If something is indeed a dog, then it implies that it has fleas. However, if it is not a dog, the statement does not make any specific claim about fleas.

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Complete question is;

A 21 ft ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of elevation is?

Answer:

θ = 70.5°

Step-by-step explanation:

The angle of elevation simply means the angle that the ladder makes with the ground. Let's call this angle θ.

I've attached a diagram showing the triangle made by this ladder and the wall.

From the attached diagram, we can see the triangle formed by the ladder and the wall.

We can find the angle of elevation θ from trigonometric ratios.

Thus;

7/21 = cos θ

cos θ = 0.3333

θ = cos^(-1) 0.3333

θ = 70.5°

13 and 13√2 is the value of x and y in the given diagram

The given diagram is a right triangle, we need to determine the value of x and y.

Using the trigonometry identity

tan45 = opposite/adjacent
tan45 = x/13

x = 13tan45
x = 13(1)
x = 13

For the value of y

sin45 = x/y

sin45 = 13/y
y = 13/sin45

y = 13√2
Hence the exact value of x and y from the figure is 13 and 13√2 respectively.

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The number of solutions of each equation is given as follows:

A. 5t = 3t: One solution.

B. 2t = 10 - 2t: One solution.

C. 15 - 3(t + 5) = -3t: Infinite solutions.

D. 4t + 7 = 4(t + 2): zero solutions.

E. 6t + 2 = -3 + 6t: zero solutions.

The slope-intercept definition of a linear function is given as follows:

y = mx + b.

In which:

The number of solutions of a system of two linear functions is given as follows:

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The value of x is 2yw + y - 1 for the given equation 2x + 2/y = 4w + 2.

According to the given question.

We have an equation

2x + 2/y = 4w + 2

Since, we have to find the value of x for the given equation

2x + 2/y = 4w + 2

Thereofore,

2x + 2/y = 4w + 2

⇒ 2(x + 1)/y = 2(2w + 1)    (taking 2 common from both the sides)

⇒ (x + 1)/y = 2w + 1

⇒ (x + 1) = y(2w + 1)         (multiplying both the sides by y)

⇒ x + 1 = 2yw + y

⇒ x = 2yw + y - 1         ( subtracting 1 both the sides)

Hence, the value of x is 2yw + y - 1 for the given equation 2x + 2/y = 4w + 2.

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Yes, that is correct. The notation P(z < a) represents the probability that a standard normal distribution variable Z is less than a particular value "a".

what is probability?

Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 indicates that the event is impossible, and 1 indicates that the event is certain to happen. The probability of an event A is typically denoted as P(A) and is calculated as the number of ways that event A can occur divided by the total number of possible outcomes. Probability is used in a wide range of fields, including mathematics, statistics, physics, finance, and engineering.

what is statistics?

Statistics is a branch of mathematics that involves the collection, analysis, interpretation, presentation, and organization of data. It includes a variety of methods for collecting data, such as surveys, experiments, and observational studies. Statistical methods are used to summarize and analyze the data, and to draw conclusions and make predictions about the population from which the data is sampled. The results of statistical analyses can be used in a variety of fields, including business, social sciences, natural sciences, and engineering.

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The average number of accidents per day (18 accidents) is an example of a statistical measure of central tendency, specifically the mean. It represents the sum of all the observations (the number of accidents) divided by the total number of observations (the number of days). It is a single value that attempts to describe the entire set of observations.

The average number of accidents per day can be used to calculate various things. For example, it can be used to:

It's important to keep in mind that the mean is just one measure of central tendency, and other measures such as the median or mode may provide a better representation of the data in certain situations.

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Answer: Therefore, the uncertainty for x – y is 0.36. We can express the result as:

x – y = 0.4 ± 0.4.

Note that we rounded the uncertainty to one significant figure, consistent with the number of significant figures in the given uncertainties for x and y.

Step-by-step explanation:

To calculate the uncertainty for x – y, we need to first calculate the uncertainty for the difference between x and y. We can do this by using the formula for the propagation of uncertainties:

δ(x - y) = √( δx² + δy² )

where δx and δy are the uncertainties for x and y, respectively.

Substituting the given values, we get:

δ(x - y) = √( (0.2)² + (0.3)² )

= √( 0.04 + 0.09 )

= √0.13

≈ 0.36

Therefore, the uncertainty for x – y is 0.36. We can express the result as:

x – y = 0.4 ± 0.4.

Note that we rounded the uncertainty to one significant figure, consistent with the number of significant figures in the given uncertainties for x and y.

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Answer:

i dont knwo i rly need pounts plz

Step-by-step explanation:

Answer:

b- 4 inches...........

The length of side BD which is the altitude of the triangle is 2√(70)

The length of BD is solved using similar triangles. This is defined by triangles formed from triangle ABC and they include

Let the altitude be h, hence we have the formula of the proportions as

AD / h = h / DC

plugging the values gives

20 / h = h / 14

h^2 = 20 * 14

h = √(20 * 14 )

h = √(280)

h = 2√(70)

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Answer:

Step-by-step explanation:

Given the solution to the equation y to be cos⁻¹(1)

y = cos⁻¹(1)

y =0°

In trigonometry identity, the general solution for cosine function is expressed as θ = 2kπ ± n, where n is any integer.

Substituting the solution gotten to the equation above into the general formula θ = 2kπ ± n, will give;

y = 2kπ ± n

since we have just one solution, we will find the value of y at n = 0

y = 2kπ ± 0

y = 2kπ

The coordinates of A' and C' will not be the same. The perimeter and area of ΔA'B'C' will be the same. The measure of ∠B' and the slope of A'C' will be the same.

Transformation is rearranging a graph by a given rule it could be either increment of coordinate or decrement or reflection.

If we reflect any graph about y = x then the coordinate will interchange it that (x,y) → (y,x).

As per the given translation,

2 units down and 3 units right

The coordinate will change as,(x,y) → (x+3,y-2) so it will change.

The transformation consists only of linear transformation no rotation exists thus area and perimeter will remain the same.

The slope and angle are unchanged irrespective of any transformation.

Hence "A' and C' will not have the same coordinates. The boundaries and surface area of ΔA'B'C' will be identical. The slope of A'C' and the measure of ∠B will be equal.".

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Answer:

1

Step-by-step explanation:

2-1 = 1

Answer:

2 cookies - 1 cookie = 1 cookie