\(\sqrt{7} (2\sqrt{7}+4)\)

Answer:

Step-by-step explanation:

8x^3 - 12x^2 - 2x + 3

4x^2(2x - 3) - 1( 2x - 3)

(4x^2 - 1)(2x - 3)

(2x - 1)(2x + 1)(2x - 3)

Answer:

\((2x - 1)(2x + 1)(2x - 3) \\ \)

Step-by-step explanation:

\(8 {x}^{3} - 12 {x}^{2} - 2x + 3 \\ 4 {x}^{2} (2x - 3) - 1(2x - 3) \\ (4 {x}^{2} - 1)(2x - 3) \\ ( {2}^{2} {x}^{2} - {1}^{2} )(2x - 3) \\ (2x - 1)(2x + 1)(2x - 3)\)

hope this helps you

can I have the brainliest please?

Answer:

At least two of the lateral faces are congruent.

Step-by-step explanation:

Because the words "at least" are used this means that at a minimum 2 of the faces are congruent. Because the base is in the shape of a triangle, this will definitely be true.

hope this helps:)

Answer:

At least two of the lateral faces are congruent.

Step-by-step explanation:

Because the words "at least" are used this means that at a minimum 2 of the faces are congruent. Because the base is in the shape of a triangle, this will definitely be true.

hope this helps:)

The inclined end of the ramp is 7.27 inches above the ground.

The ramp needs to run 10 inches horizontally for every 1 inch of rise.

Let's denote the length of the inclined end of the ramp (the rise) as "x" inches.

Since the ramp needs to run 10 inches horizontally for every 1 inch of rise, the horizontal distance covered by the ramp (the run) can be calculated as 10x inches.

We are also given that the surface of the ramp is 80 inches long.

This surface includes both the rise and the run of the ramp.

So we can write the following equation:

x + 10x = 80

11x = 80

Dividing both sides of the equation by 11:

x = 80 / 11

x = 7.27 inches

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Answer:

x= 100

Step-by-step explanation:

x/5 = 20

multiply both the sides by 5 we get

5× x/5 = 20×5

x = 100

Answer:1.95

Step-by-step explanation:

Answer:

Step-by-step explanation:

=x^2-x+3+3x^2-3x+2

=5x^2-4x+5

Some radix systems have nonzero digits to the right of the radix point for fractional values. So, option B Is correct.

Knowing that the numbers to the right of a radix point reflect negative powers of the radix and that fractional values of other radix systems have nonzero digits to the right of the radix point are two things that we already know. With this knowledge, we can therefore say that in a positional numeral system, the radix or base is the number of distinct digits, including the digit zero, used to represent numbers. Here, we can give an example of the decimal system, which is the most prevalent system in use today. We know that the radix is ten because it uses the ten digits from 0 through 9, so we can say that the decimal system has a base of ten.

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The system has a unique solution, and the values of x and y that satisfy all three equations simultaneously are x = 7/2 and y = 1/2.

To find the solutions to the system of equations:

x - y = 3 ---(1)

x + y = 4 ---(2)

5x - y = 10 ---(3)

We can solve the system using various methods, such as substitution or elimination. Let's use the elimination method here:

Adding equation (1) and equation (2) eliminates the variable y:

(x - y) + (x + y) = 3 + 4

2x = 7

x = 7/2

Substituting the value of x into equation (2):

7/2 + y = 4

y = 4 - 7/2

y = 8/2 - 7/2

y = 1/2

The solution to the system of equations is (x, y) = (7/2, 1/2).

The system has a unique solution, and the values of x and y that satisfy all three equations simultaneously are x = 7/2 and y = 1/2.

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The appropriate simulation applet to calculate an approximate p-value is 0.0077.

The strong evidence that a short delay hinders the memorization process is strong data suggests that a brief delay impairs memorization.

Delay or no delay, answer: the number of words remembered

The mean distance between words remembered with and without delay over time is null, or zero.

Alt: The mean distance in words remembered over the long term (with no delay minus with delay) is higher than 0.

Yes, the majority of the lines do skew to the right. The mean for no delay is 10.55 whereas that for with delay is 8.7.

The mean distance in words remembered is 1.85.

1)0.0077 as the p-value

2)Strong data suggests that a brief delay impairs memorization.

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The quantity of more flour that she needs to add would be = 3/4

A fraction is defined as the representation of the part of a whole data in a form of numerator and denominator.

The quantity of flour Ryan needs for baking = 3¼

The quantity of flour she has already added = 2½

The remaining amount that she needs to add;

= 3¼-2½

= 3/4

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Answer:

Sorry for the sloppiness of the drawing

Step-by-step explanation:

The graph of equation y= -2x+ 7 is attached below.

The graph is simply a structured representation of the data. It aids in our comprehension of the data. The numerical information gathered through observation is referred to as data.

In a line graph, the information or data is represented as a series of markers, or dots, and is then connected to one another by a straight line.

Usually, data that varies over time is represented with a line graph.

Given:

slope= -2

y- intercept = 7

Using slope- intercept form

y= mx + b

y= -2x + 7

and, the graph of equation y= -2x+ 7 is attached below.

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Answer:

the one with pink and white at the top, and the same one with purple and blue on the bottom

Step-by-step explanation:

The area model that represents 0.4 x 0.7 = 0.28 is the first graph, with pink color, purple colour, white colour and blue color.

The area model that represents 0.4 x 0.7 = 0.28 is determined by observing the graph with 0.4 row or column times row or column with 0.7.

The solution of the expression is calculated as follows;

0.4 x 0.7 = 0.28

So we can see that the first graph has 0.4 column and 0.7 row, creating the desired result need for the product of 0.4 and 0.7.

Thus, the area model that represents 0.4 x 0.7 = 0.28 is determined as the first graph with pink color, purple colour, white colour and blue color.

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Answer:

Area = 36 cm^2

Explanation:

The area of a parallelogram is the product of width and height

Now in our case w = 9 cm and h = 4cm; therefore, the area is

which is our answer!

  Among the given options (A, B, C, D), the correct population regression model when k = 2 is option D: Y = β0 + β1X1 + β2X2 + e.

In a population regression model, we are interested in modeling the relationship between a dependent variable (Y) and one or more independent variables (X1, X2, etc.). The model equation consists of the regression coefficients (β0, β1, β2, etc.) that represent the effect of each independent variable on the dependent variable, and the error term (e) that captures the unexplained variation in the data.
Among the given options, only option D includes all the necessary components of a population regression model with two independent variables (k = 2). It includes the dependent variable Y, the regression coefficients β0, β1, and β2 for the independent variables X1 and X2, respectively, and the error term e.
Options A, B, and C are incorrect because they either omit the error term or have an incomplete equation. The error term is crucial in accounting for the unobserved factors and random variation in the relationship between the variables.
Therefore, the correct population regression model when k = 2 is option D: Y = β0 + β1X1 + β2X2 + e.

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Josephine can choose three books (one chemistry, one history, and one statistics) in 60 ways using the multiplication principle.

To calculate the number of ways Josephine can choose one book of each type to study, we can use the multiplication principle, which states that the total number of outcomes for a sequence of events is the product of the number of outcomes for each event.

So, to solve this problem, we need to multiply the number of ways Josephine can choose one chemistry book, one history book, and one statistics book.

The number of ways to choose one chemistry book from two is 2 (since there are only two options).

The number of ways to choose one history book from three is 3.

The number of ways to choose one statistics book from ten is 10.

Therefore, the total number of ways Josephine can choose one book of each type to study is:

2 x 3 x 10 = 60

So there are 60 ways for Josephine to choose the three books she wants to study.

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The probability of selecting two girls at random is 0.178

A probability event can be defined as a set of outcomes of an experiment. In other words, an event in probability is the subset of the respective sample space. The sample space is the entire possible set of outcomes of a random experiment is the sample space or the individual space of that experiment. The likelihood of occurrence of an event is known as probability. The probability of occurrence of any event lies between 0 and 1.

sample space = 6 girls + 7 boys = 13 students

probability of boys = 7 / 13

probability of girls = 6/13

The probability of two girls = (6 / 13) * (5 / 13) = 0.178

The probability of two girls is 0.178

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Answer:

yes it help me when I'm doing my work

Step-by-step explanation:

\(1 + 1 - 4 = - 2\)

• who is Teeny ?

= informal extremely small.

• what's the Equivalent Expression ?

= 3(x + 2) and 3x + 6 are equivalent expressions because the value of both the expressions remains the same for any value of x. 3x + 6 = 3 × 4 + 6 = 18.

\(\huge{\underline{\underline{\boxed{\sf{\green{Question:-}}}}}}\)

\(\large\huge\green{\sf{Answer:-}}\)

= a very small;

e.g:-

3(x + y) is equivalent to 3x + 3y.

Answer: 3750

Step-by-step explanation:

Answer:

nine

Step-by-step explanation:

9 bananas. 3.25 divided by 0.35 is 9.285. (You don’t need the numbers behind the decimal.)

you would be left with 1/4 of X brownies.

The origin of something refers to its beginning or starting point. It can be used to describe the source or cause of an idea, belief, tradition, event, or object. For example, the origin of the universe is a topic of much scientific debate, while the origin of a particular tradition or custom may be traced back to a specific cultural group or historical event.

Given by the question.

If you have 1/3 of the brownies left and a customer wants to buy 3/4 of the brownies, that means they want to buy:

3/4 x (the original number of brownies)

To find out how many brownies you have left after the customer makes their purchase, you need to subtract the number of brownies the customer bought from the original number of brownies.

Let's say the original number of brownies was X. Then:

The number of brownies the customer wants to buy = 3/4 X

The number of brownies you have left = X - (3/4 X)

Simplifying this expression, we get:

The number of brownies you have left = (1/4) X

So, if you started with X brownies, and the customer bought 3/4 of them

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Answer:

32.1m

Step-by-step explanation:

\(2\pi r*(\frac{x}{360})=\) arc length of sector of a circle

2 radii + arc length of a sector of a circle= perimeter of the sector

x=90 degrees

r=9

substitute values to find the arc length

\(2(9)*\pi *(\frac{90}{360} )= arc length\\arclength=14.1\\\)\(14.1+2(9)=32.1\)

Answer:

14 im pretty sure

Step-by-step explanation:

.

To calculate the number of hits Courtney must get in her next 50 at-bats to achieve a .300 batting average, we'll need to consider her current stats.

The batting average is determined by dividing the total number of hits by the total number of at-bats. Currently, Courtney has 14 hits out of 50 at-bats, which gives her a batting average of \(14/50 = 0.28\)  or a 28% average. To achieve a .300 batting average, she needs her hits to make up 30% of her total at-bats.

Since Courtney will have 100 at-bats after her next 50, she'll need to have 30 hits to achieve her desired average. To calculate the number of hits needed in her next 50 at-bats, we subtract her current hits from the target hits. Therefore, Courtney needs \(30 hits - 14 hits = 16\) hits in her next 50 at-bats to finish with a .300 average.

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Answer:

C’ (-4.5, 3)

Step-by-step explanation:

3/4 x (-6)= -4.5

3/4 x (4)= 3

Answer:

b=40 I just took this quiz

Answer:b=40 a=100

Step-by-step explanato a line is 180 degrees, the outside of the triangle is 140 degrees so the inside must be 40 to make 180 and a is also 40 because the triangles sides are the same

to find a we now know that both angles on the bottom 40+40 will add up to 80 and to make a complete triangle we need 180 so the measure of a is 100 degrees

a=100

b=40

160 ounces or 10 pounds of cheese is $ 15 and 84 cents.

The unitary approach is a strategy for problem-solving that involves first determining the value of a single unit, then multiplying that value to determine the required value.

Direct Variation

When there is a direct variation, an increase or decrease in one quantity will result in an equivalent rise or fall in the other. For instance, a rise in the quantity of commodities will result in higher costs.

Indirect Variation

A change in one quantity will directly affect a change in another, known as a direct variation. A rise in the quantity of goods, for instance, will result in higher costs.

We can say 1 pound = 16 ounces

10 pounds = 10 * 16 = 160 ounces

10 ounces of cheese is 99 cents

1 ounce of chess is 99/10 cents

160 ounces of cheese is 99*160/10 = 1584 cents = $ 15 and 84 cents.

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A percent is commonly found through a fraction, or a division problem. We put the down payment over the total price, in both scenarios.

A) 50000 / 200000 = 5 / 20 = 1/4 = 0.25 = 25%

B) 10000 / 200000 = 1 / 20 = 0.05 = 5%

Hope this helps!

a. the sum of the first 200 natural numbers is 20,100. b. when the ball hits the pavement for the 6th time, it will have traveled approximately 104 feet in total (up and down).

(a) To find the sum of the first 200 natural numbers, we can use the formula for the sum of an arithmetic series.

The sum of the first n natural numbers is given by the formula: Sn = (n/2)(a + l), where Sn represents the sum, n is the number of terms, a is the first term, and l is the last term.

In this case, we want to find the sum of the first 200 natural numbers, so n = 200, a = 1 (the first natural number), and l = 200 (the last natural number).

Substituting these values into the formula, we have:

Sn = (200/2)(1 + 200)

  = 100(201)

  = 20,100

Therefore, the sum of the first 200 natural numbers is 20,100.

(b) The ball rebounds three-fourths of the distance it drops, so each time it hits the pavement, it travels a total distance of 1 + (3/4) = 1.75 times the distance it dropped.

For the 6th rebound, we need to find the distance the ball traveled when it hits the pavement.

Let's represent the initial drop distance as h (30 ft).

The total distance traveled after the 6th rebound is given by the sum of a geometric series:

Distance = h + h(3/4) + h(3/4)^2 + h(3/4)^3 + ... + h(3/4)^5 + h(3/4)^6

Using the formula for the sum of a geometric series, we can simplify this expression:

Distance = h * (1 - (3/4)^7) / (1 - 3/4)

Simplifying further:

Distance = h * (1 - (3/4)^7) / (1/4)

        = 4h * (1 - (3/4)^7)

        = 4 * 30 * (1 - (3/4)^7)

Calculating the value:

Distance ≈ 4 * 30 * (1 - 0.1335)

        ≈ 4 * 30 * 0.8665

        ≈ 104 ft

Therefore, when the ball hits the pavement for the 6th time, it will have traveled approximately 104 feet in total (up and down).

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A ray has only one endpoint. A segment has two endpoints.

What is a line?

A line is an object in geometry that is infinitely long and has neither width nor depth nor curvature. Since lines can exist in two, three, or higher-dimensional spaces, they are one-dimensional objects. In everyday language, a line segment with two points designating its ends is also referred to as a "line."

A ray and a segment are parts of a line.

This line segment has two fixed-length endpoints, A and B. The distance between this line segment's endpoints A and B is its length.

In other words, a line segment is a section or element of a line with two endpoints. A line segment, in contrast to a line, has a known length.

A line segment's length can be calculated using either metric units like millimeters or centimeters or conventional units like feet or inches.

Ray has only one endpoint and the other ends go infinity.

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