To compare the effectiveness of two treatments, researchers conducted a well-designed experiment using a randomized block design in which the subjects were blocked by age-group (under 40 40 years and 40 40 years or older). What must be true about the randomized block design of the experiment?

Answer:

Its the one all the way to the right.

Step-by-step explanation:

Answer:

A: (0,-5)

B:(4,-5) and (6,1)

C: (0,4)and (0,-5)

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

70-271=20

Answer: it's 7/10

Step-by-step explanation:

the 49 simplifies to 7, and the 100 simplifies to 10

Answer:

12/6 simplified to lowest terms is 2/1.

Step-by-step explanation:

Divide both the numerator and denominator by the HCF

12 ÷ 6

6 ÷ 6

Reduced fraction:

12/6 simplified to lowest terms is 2/1.

Answer: 2:1

Step-by-step explanation:

12:6

Both left and right can be divided by 6, like a fraction, reduce.

= 2:1

Answer:

YZ is parallel to RT

RS is parallel to XZ

XY is parallel to TS

Step-by-step explanation:

The answer is self-explanatory if you look at the picture and the segments listed as parallel - running side by side.  Hope this helps and all the answers are right.   Just checked the score on the test and these were right.

The parallel line segment will be  YZ || RT, RS || XZ, and XY || TS.

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

In math, equal lines can be characterized as two lines in the very plane that are at equivalent separation from one another and never meet.

The length of a line portion can be estimated either in metric units like millimeters, and centimeters, or in standard units like feet or inches.

The line segment YZ is parallel to RT.

The line segment RS is parallel to XZ.

The line segment XY is parallel to TS.

The parallel line segment will be  YZ || RT, RS || XZ, and XY || TS.

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you can use the formula for the volume of a rectangular prism to solve for one of the dimensions of the prism (either the length, width, or height).

What is a rectangular prism?

A rectangular prism is a three-dimensional shape with six rectangular faces. It is also known as a box or a cuboid. A rectangular prism has three dimensions: length, width, and height.

To find the base area of a rectangular prism when given the volume, you can use the formula for the volume of a rectangular prism and the formula for the base area of a pyramid.

The volume of a rectangular prism is given by the formula V = lwh,

where V is the volume, l is the length, w is the width, and h is the height.

The base area of a pyramid is given by the formula B = A/h,

where B is the base area, A is the total surface area of the pyramid, and h is the height of the pyramid.

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Answer:

A, B, C

Step-by-step explanation:

12+0.25*12=12(1+0.25)=12*1.25

Answer:

B. 12 + 0.25 ⋅ 12

C. 12(1 + 0.25)

Step-by-step explanation:

It asks you how far she walks all together, so you need to find that answer first to figure out the rest correctly. Now, the total she walked is 15 miles. B. and C. give you 15, however, the rest give you different answer than the total she actually walked.

Without more specific information about the table in question, it's difficult to provide a detailed answer.

However, in general, when converting between fractions, decimals, and percents, there are a few key rules to keep in mind:

To convert a fraction to a decimal, divide the numerator by the denominator.

To convert a decimal to a percent, multiply by 100 and add a percent sign.

To convert a percent to a decimal, divide by 100.

To convert a percent to a fraction, write the percent as a fraction with a denominator of 100 and simplify if possible.

When completing a table that involves converting between these forms, it can be helpful to use these rules to guide your calculations. You may also want to make sure you understand the meaning of each form, as this can help you check your work and avoid errors.

For example, a percent represents a value out of 100, while a fraction represents a ratio of two numbers. By keeping these concepts in mind, you can more easily navigate between different forms and complete the table accurately.

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Answer:

============

Since both points have same y-coordinate, the distance between the points is the difference of x-coordinates:

Answer:

B. 8.75%

Explanation:

Answer:8.75

Step-by-step explanation:

Answer:

Step-by-step explanation:

155

Answer:

the answer is the 3rd sentence "Sally was a... in the summer."

Step-by-step explanation:

direct characterization is when a method of directly stating personality traits or what the character is like. in sentence 3 we get a direct description of how Sally is

Answer:

y=10x

Step-by-step explanation:

it costs 10 dollars for one pound of steak.

In the context of this problem, the vertex represents the maximum profit the shop can make by repairing windshields. The vertex of a quadratic function is a point on its graph where the function reaches its maximum or minimum value.

To determine the vertex of the function f(x) = -x^2 + 60x - 116, we can use the formula x = -b/2a, where a, b, and c are the coefficients of the quadratic equation. In this case, a = -1, b = 60, and c = -116.

Using the formula, we can calculate x = -60/(2*(-1)) = 30. This means that the vertex of the function occurs at x = 30.

To find the corresponding y-value of the vertex, we substitute x = 30 back into the function: f(30) = -(30)^2 + 60(30) - 116 = -900 + 1800 - 116 = 784.

Therefore, the vertex of the function is (30, 784).

In the context of the problem, the vertex (30, 784) represents the number of windshields repaired (x) and the corresponding monthly profit (y) at which the shop makes the maximum profit. The x-coordinate of the vertex, 30, represents the number of windshields at which the shop can maximize its profit. The y-coordinate of the vertex, 784, represents the maximum profit in dollars that the shop can make by repairing that number of windshields.

It's important to note that the negative coefficient of x^2 (-1 in this case) indicates a downward opening parabola, meaning that the maximum profit occurs at the vertex. The shop can use this information to determine the optimal number of windshields to repair in order to maximize its profit.

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4 wont be the answer. answer is 3.42

Answer:

C (6*2)

Step-by-step explanation:

Answer:

6 times 2

Step-by-step explanation:

Im not completely confident though so check other answers

The value of x from the given figure is 12 units.

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio. Either of these conditions will prove two triangles are similar.

From the given figure,

Consider ΔADC and ΔABC,

∠C=∠C (Reflex property)

AC=AC (Reflex property)

∠BAC=∠CDA=90°

By AA similarity, ΔADC ~ ΔABC

So, AC/BC = DC/AC

x/36 = 4/x

x²=36×4

x²=144

x=12 units

Therefore, the value of x from the given figure is 12 units.

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To find the length of an arc, we use the formula:

Arc length = (angle/360) x (2πr)

where "angle" is the central angle of the arc in degrees, "r" is the radius of the circle, and π (pi) is a mathematical constant approximately equal to 3.14.

In this case, we are given that the central angle is 90° and the radius is 10 km. Substituting these values into the formula, we get:

Arc length = (90/360) x (2π × 10)

Arc length = (1/4) x (20π)

Arc length = 5π

Rounding to the nearest tenth and using the approximation π ≈ 3.14, we get:

Arc length ≈ 15.7  

Therefore, the length of the arc is approximately 15.7 km.

the median is 124

the mode isb45

the range is 28

Answer:

Step-by-step explanation:

Givens

m = 1/4

y2 = 4

y1 = 1

x2 = 2

x1 = x

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

Solution

1/4 = (4 - 1) / (2- x)                Simplify

1/4 = 3 / (2 - x)                      Cross multiply

2- x =12                               Subtract 1 from both sides

-x = 12 - 2

-x = 10                                 Multiply by -1

x = -10

Check

1/4 = (4 - 1) / (2 - - 10)

1/4 = 3/(2 + 10)

1/4 = 3 / 12

1/4 = 1/4

Odd as the answer is, it does check.

Therefore , the solution of the given problem of equation comes out to be \(x^{2}\)/16-  \(y^{2}\) =1.

An equation is a mathematical representation of two equal variables, one on each side of a "equals" sign. Everyday issues can be resolved with equations. We commonly look for pre algebra help to deal with problems in real life. Pre-algebra is the fundamental foundation of mathematics.

Here,

Given : Some of the equations

\(x^{2}\)/25-\(y^{2}\)/16=1

\(x^{2}\)/16-  \(y^{2}\) =1

\(y^{2}\)/16-\(x^{2}\)/25=1

\(y^{2}\)/25-\(x^{2}\)/16=1​

We have to find the correct equation which represents the below graph.

So ,

In order to find the equation :

We,

Put the values in the equations x = -4 and y = 0:

Thus ,

equation :

\(x^{2}\)/16-  \(y^{2}\) =1

Represents the graph as x = -4 and y = 0 values satisfy the equation.

Therefore , the solution of the given problem of equation comes out to be \(x^{2}\)/16-  \(y^{2}\) =1.

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The research reveals that emotional people tend to be more satisfied with their jobs, committed to their employer, and produce more work than conscientious individuals is False.

Emotional intellect is the capacity to recognize and regulate a person's emotions and comprehend the emotions the others. A high EQ helps you to build connections, lower team stress, defuse battles and improve job fulfillment.

It can help a graduate evolve the best at what they do, be the best coworker possible, and achieve professional victory. Communication, partnership, and relationship-building skills are enhanced by higher levels of emotional intelligence. It also enables best focus on the work.

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The complete question is-

research reveals that emotional people tend to be more satisfied with their jobs, committed to their employer, and produce more work than conscientious individuals.

a. True

b. False

The distance around the outer circle of the water is 14π. Option B shows the correct circumference of the circle.

In geometry, circumference is the circumference of a circle or an ellipse. That is, the circumference will be the length of the arc of the circle as if it were opened and straightened into a line segment. More generally, the perimeter is the length of the curve around any closed figure. The circumference can also refer to the circle itself, which corresponds to the path of the edge of the disc. The circumference of a sphere is the circumference or length of one of its great circles.

Given Information:

A lawn sprinkler sprays water 7 feet in every direction as it rotates.

When the sprinkler covers all directions, it completes its one revolution of the circle. The distance around the outer circle of the water is calculated by the perimeter of the circle which is called the circumference of the circle.

Circumference = 2πr

Where r is the radius of the circle  = 7 feet.

Circumference  = 2π × 7

⇒ Circumference  = 14π

Hence we can conclude that the distance around the outer circle of the water is 14π. Option B shows the correct circumference of the circle.

Complete Question:

A lawn sprinkler sprays water 7 feet in every direction as it rotates. What is the distance around the outside circle of water? Leave your answers in terms of π.

A) 7π                                   B) 14π

C) 49π                                D) 28π

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Answer: 18 tiles

Step-by-step explanation:

Area of the floor = l x w = 3.6 * 2.4 = 8.64 sq. m.

Area of one tile = l x w = 8 * 6 = 48 cm = 0.48 m

No. Of tiles that can fit the floor =

8.64 / 0.48 = 18

The surface area of the shape is 1166 square meters

From the question, we have the following parameters that can be used in our computation:

Height of cone, h = 24 cm

Radius, r = 7 cm

Also, see attachment for the diagram

The surface area of the shape is calculated as

Surface area = Area of cone + Area of hemisphere

So, we have

Surface area = πr(r + √(r² + h²)) + 3πr²

Substitute the known values in the above equation, so, we have the following representation

Surface area = 22/7 * 7 * (7 + √(7² + 24²)) + 3 * 22/7 * 7²

Evaluate

Surface area = 1166

Hence, the surface area is 1166 square meter

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Given that the Hydrogen ion Concentration of RC Cola is 4.7863 × 10⁻³.

We need to find its pH.

As we know that,

pH = -log[H⁺]

Hence, pH = -log[4.7863 × 10⁻³]pH = 2.320The pH of RC Cola is 2.32.

Therefore, option B is correct.

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Answer:

c

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

They will be either side of the 2 circles.