PLS HELP ILL MARK U BRAINLIEST

Answer:

15x =  3 (5x)

Step-by-step explanation:

12 + 3 = 15

15x =  3 (5x)

Taylor forgot to add 3 to her answer and got the result of 3 x 4 which is 12.

The correct way for her to factor is to use Pemdas.

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\(\\ \sf{:}\dashrightarrow 12x+3=3(4x)\)

\(\\ \sf{:}\dashrightarrow 12x+3=12x\)

\(\\ \sf{:}\dashrightarrow 12x-12x=3\)

\(\\ \sf{:}\dashrightarrow 0=3\)

No solutions ✓

The probability that it is raining if the flight has been delayed is 0.07, or 7%.

We can use the following formula to calculate the probability that it is raining if the flight has been delayed:

P(Rain|Delayed) = P(Rain and Delayed) / P(Delayed)

We are given that P(Rain) = 0.07 and P(Delayed) = 0.18. We can also use the fact that P(Rain and Delayed) = P(Rain) * P(Delayed):

= 0.07 * 0.18

= 0.0126.

Substituting these values into the formula, we get:

P(Rain|Delayed) = 0.0126 / 0.18 = 0.07

Therefore, the probability that it is raining if the flight has been delayed is 0.07, or 7%.

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You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.

Businesses, a noun in plural. a group of people who are connected or who have joined together. a guest or guests: We're having people over for dinner. a collection of individuals together for social purposes. association, camaraderie, and fellowship She is a lot of joy to be around.

The Old French word "compagnie," which was first used in the Salic code and meaning "one who eats bread with you," is where the English word "company" originates. To describe a "society, friendship, closeness, or body of troops," it was first used in 1150.

You invested $12,000 in the company when you originally started it. Additionally, you borrowed $12,000 for a five-year (long-term) loan and paid back $2,018 of it.

Total Amount to be when start the company is $12000 + $12000

= $24000

Out of which company owns land and a building worth $8,878 and equipment worth $4,230 and have retained $1,291 in earnings to be reinvested in the company, and you decided to put $1,000 of it aside for a long-term investment.

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The coordinates of Y' are (6, 4) and the coordinates of Z' are (5, -1).

Here, we have,

To find the coordinates of Y' and Z', we need to apply the same translation that maps X to X'.

We know that the vector that connects X to X' is (3 - (-1), 1 - 0) = (4, 1).

So, to translate Y to Y', we add the vector (4, 1) to the coordinates of Y:

Y' = Y + (4, 1)

= (2, 3) + (4, 1)

= (6, 4)

Similarly, to translate Z to Z', we add the vector (4, 1) to the coordinates of Z:

Z' = Z + (4, 1)

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

= (5, -1)

Therefore, the coordinates of Y' are (6, 4) and the coordinates of Z' are (5, -1).

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Answer:

I would say all of them

Step-by-step explanation:

Three is a rational number and the others are fractions

rational numbers can be written as fractions

If G is not a cyclic group, then it does not have a subgroup of order p. Conversely, if G is cyclic, then it has a unique subgroup of order p.

The statement "A group G whose order is a prime number has only two subgroups, G itself and 1 = {1}" means that if G is a group with a prime number of elements, then the only subgroups of G are the trivial subgroup {1} and the group G itself.

In other words, there are no other proper subgroups of G besides these two.

The statement "A group G whose order is (p-1) where p is a prime number has a subgroup of order p if and only if G is cyclic" means that if G is a group with (p-1) elements, where p is a prime number, then G has a subgroup of order p if and only if G is a cyclic group.

In other words, if G is not a cyclic group, then it does not have a subgroup of order p. Conversely, if G is cyclic, then it has a unique subgroup of order p.

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The three questions are illustrations of arithmetic operations and geometric progressions

(1) Acid concentration

The given parameters are:

pH of acid lemon juice = 2

pH of acid urine = 5.5

The difference between their pH is calculated as follows:

Difference = 5.5 - 2

Difference = 3.5

Multiply the difference by 10, to calculate the acidity

Acidity = 3.5 * 10

Acidity = 35

Hence, the acid like lemon juice is 35 times stronger than urine

(2) Depreciation

The depreciation is given as:

r = 18%

In 1998, the car's worth is $19995.

This is represented as:

a = 19995

2012 is 14 years from 1998.

This is represented as:

n = 14

So, the worth of the car in 2014 is calculated using:

\(\mathbf{Worth =a(1 -r)^n}\)

So, we have:

\(\mathbf{Worth =19995 \times (1 -18\%)^{14}}\)

Express percentage as decimal

\(\mathbf{Worth =19995 \times (1 -0.18)^{14}}\)

\(\mathbf{Worth =19995 \times 0.82^{14}}\)

Evaluate

\(\mathbf{Worth =1243}\)

Hence, the worth of the car in 2012 is $1243

(3) Spread of Gossip

The spread of the gossip is an illustration of geometric progression, where

a = 1 ---- the first term

r = 3 --- the common ratio

L =1200 --- the last term

So, we calculate the number of terms from 1 to 1200 using the following nth terms of geometric progression

\(\mathbf{L = ar^{n-1}}\)

This gives

\(\mathbf{1200 = 1 \times3^{n-1}}\)

\(\mathbf{1200 = 3^{n-1}}\)

Take logarithm of both sides

\(\mathbf{log(1200) = log(3^{n-1})}\)

Apply law of logarithm

\(\mathbf{log(1200) = (n-1)log(3)}\)

Divide both sides by log(3)

\(\mathbf{n - 1 = log(1200) \div log(3)}\)

\(\mathbf{n - 1 =6.45}\)

Add 1 to both sides

\(\mathbf{n =7.45}\)

Since the gossip spreads every two minutes.

The total time is:

\(\mathbf{Total =2minutes \times 7.45}\)

\(\mathbf{Total =14.9\ minutes}\)

Hence, it will take 14.9 minutes for the gossip to spread to 1200 students

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Answer:

Top Middle in the top column, rest bottom i think

Step-by-step explanation:

She sold 3 1/4 pie in the entire day, srry if i'm wrong friend.

Answer:

Both Rachel and Erik are trying to estimate the area of the circular rug with a diameter of 8 ft. Rachel's estimate using the formula A = πr^2 is correct and is the standard way to find the area of a circle. Erik's method of dividing the circle into 12 parts and forming a parallelogram is also a creative way to estimate the area, but it may not be as accurate as Rachel's formula-based approach.

Step-by-step explanation:

The area of a circle can be calculated using the formula A = πr^2, where r is the radius of the circle. In this case, the diameter of the circle is 8 ft, so the radius can be calculated as r = 8/2 = 4 ft. Substituting the radius into the formula gives A = π x 4^2 = 16π.

Erik's approach of dividing the circle into 12 parts and forming a parallelogram is an estimation method that could be used to find the area of a circle. The idea is to divide the circle into equal parts, arrange them into a parallelogram shape, and find the area of the parallelogram. This will give an estimate of the area of the circle, but it may not be as accurate as using the formula A = πr^2.

Answer:

2.576

Step-by-step explanation:

Given :

Confidence level (α) = 99%

Z(1 - α)/2 = Z(1 - 99%)/2

Z1%/2 = Z1%/ 2

Z0.5% = Z0.005

Z(0.99 + 0.005) = Z0.995

Using the Z distribution table ; locate the z value for the proportion 0.995 ; this corresponds to approximately 2.57

Similarly, using the Invnorm calculator function :

Invnorm(0.995) gives a Zscore of :

2.576

Answer:

53 ounces

Step-by-step explanation:

We know that,

1 pound = 16 ounce

3 pounds = 48 ounces

We need to find the weight in 3 pounds, 5 ounces.

3 pounds, 5 ounces = 48 ounces+ 5 ounce

= 53 ounces

So, the scale weight is 53 ounces. Hence, the correct option is (b).

Answer:

The binomial probability distribution is shown below.

Step-by-step explanation:

The probability mass function of X is:

\(P(X=x)={n\choose x}p^{x}(1-p)^{n-x};x=0,1,2,3..\)

It is provided that n = 6 and p = 0.25.

Construct a binomial probability distribution with the given parameters as follows:

X                                       P (X = x)

0        \(P(X=0)={6\choose 0}(0.25)^{0}(1-0.25)^{6-0}= 0.1780\)

1         \(P(X=1)={6\choose 1}(0.25)^{1}(1-0.25)^{6-1}= 0.3560\)

2        \(P(X=2)={6\choose 2}(0.25)^{2}(1-0.25)^{6-2}= 0.2966\)

3        \(P(X=3)={6\choose 3}(0.25)^{3}(1-0.25)^{6-3}= 0.1318\)

4       \(P(X=4)={6\choose 4}(0.25)^{4}(1-0.25)^{6-4}= 0.0330\)

5       \(P(X=5)={6\choose 5}(0.25)^{5}(1-0.25)^{6-5}= 0.0044\)

6       \(P(X=6)={6\choose 6}(0.25)^{6}(1-0.25)^{6-6}= 0.0002\)

Compute the mean and standard deviation as follows:

\(\mu=np=6\times0.25=1.50\\\\\sigma=\sqrt{np(1-p)}=\sqrt{6\times 0.25\times (1-0.25)}=1.0607\)

Binomial probability distribution was constructed, and the mean and standard deviation comes to be 1.5 and 1.061 respectively.

As we know that binomial probability distribution is given by

\(P(x) = ^nC_xp^x(1-p)^{n-x}\)

The binomial distribution is a probability distribution that depicts the likelihood that a value will take one of two independent values under a given set of parameters.

Given n=6 & p=0.25

\(P(0) = ^6C_0(0.25)^0(1-0.25)^{6-0}\) = 0.1780

\(P(1) = ^6C_1(0.25)^1(1-0.25)^{6-1}\)=0.3560

\(P(2) = ^6C_2(0.25)^2(1-0.25)^{6-2}\) = 0.2966

\(P(0) = ^6C_3(0.25)^3(1-0.25)^{6-3}\) =0.1318

\(P(0) = ^6C_4(0.25)^4(1-0.25)^{6-4}\)=0.0330

\(P(5) = ^6C_5(0.25)^5(1-0.25)^{6-5}\)=0.0044

\(P(6) = ^6C_6(0.25)^6(1-0.25)^{6-6}\)= 0.0002

Mean = np

Mean = 6*0.25

Mean = 1.5

Standard deviation σ = \(\sqrt{np(1-p)}\)

σ = \(\sqrt{6*0.25(1-0.25)}\)

σ = 1.061

Hence, binomial probability distribution was constructed, and the mean and standard deviation comes to be 1.5 and 1.061 respectively.

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The two expressions are equivalent because they both represent the same concept: a number that is less than 3 but negative. In the first expression, -x, the negative sign in front of the x indicates that the value of the expression is the opposite of x. So if x is a positive number, then -x will be a negative number, and vice versa. In the second expression, x > -3, the greater than sign indicates that the value of x is greater than -3. Since we know that x is negative, this means that x is less than -3.

Therefore, both expressions represent the same thing: a number that is less than 3 but negative. This is why they are equivalent.

Answer:

130 degrees

Step-by-step explanation:

DE+DA=130

As the triangles are similar to each other, the length of QR= 20 units.

Triangles that have matching sides that are proportional to one another and corresponding angles that are equal to one another are said to be similar triangles. Triangles that are similar in appearance but differ in size. Generally speaking, congruent triangles and comparable triangles are not the same. We can determine whether two triangles are similar or not using a variety of techniques.

In the given figure the triangles are similar to each other,

So, (4x -1)/ (2x+1) = (4x-1+5) / (2x+1+3)

⇒ (4x-1) / (2x+1) = (4x+4) / (2x+4)

⇒ (4x-1) / (2x+1) = 4(x+1) / 2(x+2)

⇒ (4x-1) / (2x+1) = 2(x+1) / (x+2)

⇒ (4x-1) / (2x+1) = (2x+2) / (x+2)

Cross multiplying:

⇒ (4x-1) × (x+2) = (2x+2) × (2x+1)

⇒ 4x² + 8x - x - 2 = 4x² + 2x +4x +2

Simplifying the equation:

⇒ x = 4

So, QR = 4x - 1 + 5

= 4 × 4 -1 + 5

= 20 units.

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Answer:

x = 11

Step-by-step explanation:

using the rule of logarithms

\(log_{b}\) x = n ⇒ x = \(b^{n}\)

given

\(log_{3}\) (2x + 5) = 3 , then

2x + 5 = 3³ = 27 ( subtract 5 from both sides )

2x = 22 ( divide both sides by 2 )

x = 11

Answer:

-6 and -9

Step-by-step explanation:

The values of x that would make a polynomial equal to zero if the factors of the polynomial were (x+6) and (x+9) are -6 and -9.

x+6=0 x+9=0

x=-6 x=-9

Answer:

The value of x that would make the polynomial equal to zero is -6.

Step-by-step explanation:

Answer:

5+10.80=15.8

Step-by-step explanation:

Answer:

\(\frac{2}{5}x^{5} +x^{4}+\frac{1}{x} + C\)

Step-by-step explanation:

Find the antiderivative of 2x^4+4x^3-x/x^3

\(\frac{2x^{4+1 } }{4+1}\) + \(\frac{4x^{3+1} }{3+1}\) +1/x + C

\(\frac{2}{5}x^{5} +x^{4}+\frac{1}{x} + C\)

Answer:

$0.64 per cup

Step-by-step explanation:

There are 16 cups in 1 gallon, so the number of cups in 2 gallons is:

1 gallon: 16 cups

2 gallon = 2 x 1 gallon = 2 x 16 cups = 32 cups

So we need to find the price of each cup:

1 cup = ($20.48 / 32 cups) = $0.64 per cup.

Plot the given coordinates of the polygon in the coordinate plane and connect it with a smooth curve.

A two-dimensional geometric shape with a finite number of sides is called a polygon. A polygon's sides are constructed from segments of straight lines joined end to end.

A coordinate plane is a two-dimensional plane created by the intersection of two number lines. The x-axis, a horizontal number line, and the y-axis, a vertical number line, are two of these number lines.

Plot the points on the graph according to the given coordinates. Connect all the points. The polygon is triangle.

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Answer:

false. slope is calculated by rise over run

Answer:

FALSE

Step-by-step explanation:

Slope is known as the RISE OVER RUN.

Can I get brainliest? Plz!!!

Answer: AB

Step-by-step explanation:

Radius of a circle is defined as the distance from the center of a circle to its perimeter (the edge).  Line AB is the only choice that meets this definition. CE is the diameter of the circle.

Answer:

AB

Step-by-step explanation:

radius goes in half the circle

Answer:

A function is defined as an equation in which no x value has two y values.  You can find the answer to this via the vertical line test.  If you move a pencil across a graph and it does not touch the graph at two points, then it is a function.  Utilizing this logic, the correct answer is yes, this is a function.

Step-by-step explanation:

Answer:

Check the image of solution

Answer: 18.18%

Step-by-step explanation:

First, let's calculate the surface area of the original piece of wood. The surface area (SA) of a rectangular prism is given by the formula:

\($$SA = 2lw + 2lh + 2wh$$\)

where \(\(l\)\) is the length, \(\(l\)\) is the width, and \(\(h\)\) is the height. For the original piece of wood, \(\(l = 10\) inches\), \(\(w = 4\) inches\), and \(\(h = 5\) inches\).

After the piece of wood is cut in half, the length becomes 5 inches, but the width and height remain the same. So, for each of the two new pieces of wood, \(\(l = 5\) inches\), \(\(w = 4\) inches\), and \(\(h = 5\) inches\). The total surface area of the two new pieces of wood is twice the surface area of one of the new pieces.

The percent increase in the total surface area is given by the formula:

\($$\text{Percent Increase} = \frac{\text{New Total SA} - \text{Original SA}}{\text{Original SA}} \times 100\%$$\)

Let's calculate these values.

The percent increase in the total surface area when the piece of wood is cut in half is approximately 18.18%.

Answer:

The slope between (-5,1) and (4,4) is 1/3

Step-by-step explanation:

When you're given 2 points and you must find the slope between those 2 points, you can find the distance between the y values and the x values.

For example in this case, the distance in our first y value is 3. So we know that y is always above x so we have 3/x so far.

Next to find the x values you do the exact same, and we get a distance of 9 from -5 to +4.

Now we have 3/9 which should be simplified to 1/3. When plotting this point, you'll use the strategy Rise over Run or Rise/Run.

(Side Note: Y is always above X so we know the Rise must be Y and the X must be Run.)

Y/X = Rise/Run

Hope this helps! :)

The number of gallons of gas which Mrs. Josey and her family would need is; 17.5 gallons of gas.

It follows from the task content that the quantity of gas in gallons needed by Mrs. Josey and her family to make it to Dallas is to be determined.

Therefore, since one gallon of gas is enough for 20 miles, It follows that the amount of gas required for 350 miles can be determined by proportion as follows;

20/1 = 350/x

x = 350 / 20

x = 17.5 gallons of gas.

Ultimately, the amount of gas needed for Mrs. Josey and her family to make it to Dallas is; 17.5 gallons of gas.

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Hey there!

\(Answer:\boxed{20.95}\)

\(Explanation:\)

To find the answer, we can add up the time from both people.

\(20.7(20.70)+0.25=20.95\)

\(\boxed{20.95}\text{ is your answer.}\)

Hope this helps!

\(\text{-TestedHyperr}\)