PLEASE HELP ME omlll

Answer:

18=18

Step-by-step explanation:

it dosent give x so just put them all together without x and its equal so(=)

Answer:

35 minutes

Step-by-step explanation:

Dylan gets home at 4:05pm

spends 20 minutes on his homework

4:05+20 min=4:25

spends 15 minutes practicing the drums.

4:25+15 min=4:40

Now, how many minutes does he have left before leaving for soccer practice at 5:15 pm

5:15-4:40=35 min

we cant find 15-40 because it gives negative number so we take 1 from 5 that made 15 became

15+60=75 min

then 75-40=35min

of course 4-4=0 hours

C

The mistake the arrangers made is in the second inequality. They considered the number of caps to be bought should be at least 5 times greater than the number of blouses, not the other way around. The correct inequality should be C

The correct answer is D) The first inequality should be s + h ≤ 1800.

The organizers made an error in the first inequality. The given inequality 10s + 8h ≤ 1800 represents the total cost of buying shirts (10s) and hats (8h) should be less than or equal to $1800. However, this does not take into account the fact that the organizers want to buy at least 5 times as many shirts as hats, as indicated by the second inequality h ≥ 5s.

The correct way to represent this constraint is by using the equation s + h ≤ 1800, which ensures that the total number of shirts and hats purchased does not exceed $1800 in cost. This is because the organizers want to make sure that the total cost of shirts and hats combined does not exceed the budget of $1800.

A. The algebraic expression that represents the total number of miles Leah runs each week is 5*M.

B. The algebraic expression that represents the total number of miles Leah runs in a year is 260*M.

Leah runs M miles everyday during the week except for Wednesday or Sunday.

We need to write the algebraic expression that represents the total number of miles Leah runs each week. Leah runs for 5 days in a week. The total number of miles run in a week is 5*M.

We need to write the algebraic expression that represents the total number of miles Leah runs in a year. Leah runs 5*M miles in a week. The total number of miles run in a year is (5*M)*52 = 260*M.

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Answer:

a) (x+6)(x-1)

b) (x+8)(x-5)

c) (x+3)(x-10)

Step-by-step explanation:

The final answer would always have to be two brackets with x and the relevant variables.

x²: You know the possible factors that can be multiplied together would be x and x. Each factor would have to be in different brackets, so we get (x + smth else)(x +smth else)

When factorising quadratic expressions, you need to find the correct pair of factors, that when multiplied together, becomes the constant of the expression. They also need to become the middle term when they are multiplied with the term in the bracket and then added together.

Possible factors for a):

1. 1 × 6 = 6

2. 2 × 3 = 6

You know 1 - 6 = -5, so we shall use the factors 6 and 1.

(x+6)(x-1) = x² -x + 6x - 6

              = x² + 5x - 6

Thus, (x+6)(x-1) is the answer.

Possible factors for b):

1. 1 × 40 = 40

2. 2 × 20 = 40

3. 4 × 10 = 40

4. 5 × 8 = 40

You know 8 - 5 = 3, so we shall use the factors 8 and 5.

(x+8)(x-5) = x² -5x + 8x - 40

               = x² + 3x - 40

Thus, (x+8)(x-5) is the answer.

Possible factors for c):

1. 1 × 30 = 30

2. 2 × 15 = 30

3. 3 × 10 = 30

4. 5 × 6 = 30

You know 3 - 10 = -7, so we shall use the factors 3 and 10.

(x+3)(x-10) = x² -10x + 3x - 30

               = x² - 7x - 40

Thus, (x+3)(x-10) is the answer.

a)

x² - 5x - 6

= x² + x - 6x - 6

= x(x + 1) -6(x + 1)

= (x - 6) (x + 1)

b)

x² + 3x - 40

= x² + 8x - 5x - 40

= x(x + 8) -5(x + 8)

= (x - 5) (x + 8)

c)

x² - 7x - 30

= x² - 10x + 3x - 30

= x(x - 10) + 3(x - 10)

= (x + 3) (x - 10)

The graphical representation that will be most appreciated for the data would be box plot, because the median can easily be determined from the large set of data. That is option A.

The box plot is a type of graphical representation of data that gIves more than one detail about the data set such as;

Box plots allow you to compare multiple data sets better than others dues to the above listed features that it has.

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Answer 1:

7x-16xy-2

Answer 2:

4bc-5

Answer 3:

7-3x+y

3x+10

-2x²y

*Remove the parentheses for addition or subtraction*

\(7x-\left(4xy+12xy\right)-2\)

*Determine the sign*

\(7x-4xy-12xy-2\)

*Reorder and gather like terms*

\(7x+\left(-4xy-12xy\right)-2\)

*Collect coefficients of like terms*

\(7x+\left(-4-12\right)\timesxy-2\)

*Calculate the sum or difference*

\(7x-16xy-2\)

*Simplify or expand*

\(5bc-\left(5+bc\right)\)

*Remove the parentheses for addition or subtraction*

\(5bc-5-bc\)

*Reorder and gather like terms*

\(\left(5bc-bc\right)-5\)

*Collect coefficients of like terms*

\(\left(5-1\right)\) \(\times\) \(bc-5\)

*Collect the sum or difference*

\(4bc-5\)

*Simplify or expand*

\(7+(2x-5x)+y\)

*Determine the sign*

\(7+2x-5x+y\)

*Reorder and gather like terms*

\(7+\left(2x-5x\right)+y\)

*Collect coefficients of like terms*

\(7+\left(2-5\right)\timesx\) \(\times\) \(x+y\)

*Calculate the sum or difference*

\(7-3x+y\)

*Simplify or expand*

\(6x+10+(3x-6x)\)

*Determine the sign*

\(6x+10+3x-6x\)

*Reorder and gather like terms*

\((6x+3x-6x)+10\)

*Collect coefficients of like terms*

\((6+3-6)\) × \(x+10\)

*Apply the Inverse Property of Addition*

\(3x+10\)

*Simplify or expand*

\(3x^{2} y-5x^{2} y\)

*Collect coefficients of like terms*

\((3-5)x^{2} y\)

*Calculate the sum or difference*

\(-2x^{2} y\)

The percent of increase in Zach's finishing time is 5%.

From the information, at a race a few months ago, he finished in 280 minutes and yesterday, he completed another triathlon and finished in 294 minutes.

The increase in time will be:

= New time - Old time

= 294 - 280

= 14 minutes

The percentage increase will be:

= Increase in time / Original time × 100

= 14 / 280 × 100

= 1/20 × 100

= 5%

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The probability that the sample mean will be greater than 57.95 is 0.0495.

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one. This is the basic probability theory, which is also used in the probability distribution.

To solve this question, we need to know the concepts of the normal probability distribution and of the central limit theorem.

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \(\mu\) and standard deviation \(\sigma\), the z-score of a measure X is given by:

\(Z=\dfrac{X-\mu}{\sigma}\)

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The Central Limit Theorem establishes that, for a random variable X, with mean \(\mu\) and standard deviation \(\sigma\), a large sample size can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(\frac{\sigma}{\sqrt{\text{n}} }\).

In this problem, we have that:

The probability that the sample mean will be greater than 57.95

This is 1 subtracted by the p-value of Z when X = 57.95. So

\(Z=\dfrac{X-\mu}{\sigma}\)

By the Central Limit Theorem

\(Z=\dfrac{X-\mu}{\text{s}}\)

\(Z=\dfrac{57.95-53}{3}\)

\(Z=1.65\)

\(Z=1.65\) has a p-value of 0.9505.

Therefore, the probability that the sample mean will be greater than 57.95 is 1-0.9505 = 0.0495

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Answer:

\(a_1 = 1\\d = 3\)

Step-by-step explanation:

The nth term of an arithmetic progression is \(a_n = a_1 + (n - 1)d\).
You are given that \(a_5 = 13\) and \(a_{11} = 31\).

Therefore, we can solve the following system of equations to get the first term, as well as the difference.

\(-\begin{cases}a_1 + 4d = 13\\a_1 + 10d = 31\end{cases}\\\\\to 6d = 18\\\to d = 3\\\\\text{Substitute d = 3 into one of the equations to find }a_1\text{:}\\a_1 + 4 \times 3 = 13\\a_1 + 12 = 13\\\to a_1 = 1\)

Answer:

The amount of CD's she could buy would be 3.

Step-by-step explanation:

80-20=60

60÷18 = 3 CD's

Answer:

1,2,3

Step-by-step explanation:

Derek can watch a maximum of (M/7.25) number of movies, where $M represents his budget for movie.

In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. There are two types of inequalities namely strict and slack inequalities.

Given is Derek who enjoys going to the movies. He budgets a month for movies and admissions for one movie cost $7.25.

Assume that the budget for movies is $M.

The cost of admission in one movie = $7.25

Suppose that Derek can watch [x] number of movies. Then, the given inequality will represent the number of movies Derek can watch -

7.25x ≤ M

x ≤ (M/7.25)

Therefore, Derek can watch a maximum of (M/7.25) number of movies, where $M represents his budget for movie.

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To find a basis for ℝ³ containing the given vectors v₁=(-1, 1, -1) and v₂=(1, 1, 0), we need to determine a third vector that is linearly independent from them.

To find a basis for ℝ³ containing the given vectors v₁ and v₂, we need to determine a third vector that is linearly independent from them. A basis for a vector space is a set of vectors that are linearly independent and span the entire space.

We can start by checking if v₁ and v₂ are linearly independent. If they are, then they already form a basis for ℝ³. To check for linear independence, we set up the equation a₁v₁ + a₂v₂ = 0, where a₁ and a₂ are scalar coefficients and 0 represents the zero vector.

For the given vectors, (-1, 1, -1) and (1, 1, 0), we have a system of equations:

-a₁ + a₂ = 0

a₁ + a₂ = 0

-a₁ = 0

Solving this system, we find that a₁ = 0 and a₂ = 0, which means v₁ and v₂ are linearly independent.

Since v₁ and v₂ are already linearly independent and form a basis for ℝ², we can choose any vector from ℝ³ that is not a linear combination of v₁ and v₂ to complete the basis. One possible choice could be the standard basis vector e₃ = (0, 0, 1).

Therefore, a basis for ℝ³ containing v₁ and v₂ is {v₁, v₂, e₃} or {(-1, 1, -1), (1, 1, 0), (0, 0, 1)}.

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In general, to evaluate the function f(x) at a specific value of x, we substitute that value into the expression for f(x) and simplify.

In mathematics, a function is a relation between two sets, where for every element in the first set (called the domain), there is exactly one element in the second set (called the range) that the function maps to. In simpler terms, a function is a rule that assigns each input value from the domain to exactly one output value in the range. Functions are usually represented by a formula or equation that describes the relationship between the input and output values. For example, the function f(x) = 2x + 1 maps every input value of x to an output value that is twice the input value plus 1.

Here,

To evaluate the function f(x) = 4x - 6, we substitute the given values of the independent variable into the expression for f(x) and simplify.

For example:

f(0) = 4(0) - 6 = -6

f(1) = 4(1) - 6 = -2

f(2) = 4(2) - 6 = 2

f(-1) = 4(-1) - 6 = -10

f(3a) = 4(3a) - 6 = 12a - 6

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Answer:

f(x)=5+2x

Step-by-step explanation:

Step-by-step explanation:

the last one is the correct answer

\( \frac{1}{ {n}^{18} } \\ = {n}^{ - 18} \\ = {n}^{( - 3 \times 6)} \\ = ( {n}^{ - 3} ) ^{6} \)

\(( {n}^{ - 3} ) ^{6} \)

Answer:

x/6   = 3/2

Step-by-step explanation:

Answer:

102^3 = (100+2)^3

= (100^3)+(2^3)+{3*(100^2)*2}+(3*100*

{2^2})

= 1000000+8+60000+1200

= 1061208

skewed left, median, 9

Step-by-step explanation:

edmentum

The first blank is skewed left, the second blank is median, and the third blank is 9 is correct options.

We have given that,

The shape of Gretchen's data can be described as ___ Because of this, the ___ be the best measure of center for this data set.

The actual value for the best measure of center is ___.

We have to determine the word in blank from the given diagram.

A left-skewed distribution has a long left tail. Left-skewed distributions are also called negatively-skewed distributions. That's because there is a long tail in the negative direction on the number line. The mean is also to the left of the peak. A right-skewed distribution has a long right tail.

Therefore the correct options are,

The first blank is skewed left, the second blank is median,and third blank is 9.

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The graph that does not represents a proportional relationship is: A (see image attached below).

A proportional relationship has a constant, which is uniform and is defined in the equation y = kx, as k. This means a relationship that is proportionate will have an equation in that form.

For a proportional graph, the line must pass through the point of origin which is denoted by the ordered pair, (0, 0).

Therefore, from the options given, the option B represents a proportional relationship because it contains (0, 0), while option C and D takes the form of y = kx.

Therefore, option A does not represent a proportional relationship.

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Answer:

The answer is 900

good luck

A rhombus and a rectangle have the following similarities: The opposite angles are equal. The diagonals are equal in length and bisect each other. Their opposite sides are equal and parallel.

Answer:

They are both parallelograms.

Step-by-step explanation:

Let's solve figure by figure

Figure A

This figure has a total of 5 sides, therefore it is a pentagon.

Figure B

This figure has a total of 8 sides, therefore it is an octagon.

Figure C

This figure has a total of 3 sides, therefore it is a triangle.

According to the answer table, it would be

Pentagon: Figure A

Octagon: Figure B

Hexagon: None

Answer:

1.5m

Step-by-step explanation:

A hexagon has 6 sides,

so divide 6 by 9.0m

you get 1.5m

The optimal level of production is 3 units. Profit function is P(x) = -2x² + 24x + 7500. The profit at the optimal level is rounded off to $7488.

The complete question :

Cost, revenue, and profit are in dollars and x as the number of units.

A firm knows that its marginal cost for a product is MC = 2x+25, that its marginal revenue is MR = 49-6x, and that the cost of production of 60 units is$5,260.

(a) Find the optimal level of production.

(b) Find the profit function.

(c) Find the profit or loss at the optimal level.

(a) Optimal level of production

We know that Profit is given as :P(x) = R(x) - C(x), where R(x) is the Revenue function, C(x) is the Cost function.

We are given marginal cost and marginal revenue. We know that the marginal cost is the first derivative of the cost function, so we can obtain the cost function by integrating the marginal cost. Similarly, the marginal revenue tis the first derivative of the revenue function, so we can obtain the revenue function by integrating the marginal revenue. Then we can obtain the profit function by subtracting the cost function from the revenue function.

Let's find the cost function.

C(x) = ∫MC dxC(x) = ∫(2x + 25) dxC(x) = x² + 25x + CC(x) = C(60) - 5260 (substituting x=60, given the cost of production of 60 units is $5260)

C(x) = 60² + 25*60 - 5260C(x) = 360 (we get the value of C)

C(x) = x² + 25x + 360

Therefore the cost function is C(x) = x² + 25x + 360

Let's find the revenue function.

R(x) = ∫MR dxR(x) = ∫(49 - 6x) dxR(x) = 49x - 3x² + KR(60) = 0 (Given that the revenue of 60 units is zero)

0 = 49*60 - 3*60² + K0 = 2940 - 10800 + KK = 7860

Therefore the revenue function is R(x) = 49x - 3x² + 7860

Let's find the profit function.

P(x) = R(x) - C(x)P(x) = (49x - 3x² + 7860) - (x² + 25x + 360)P(x) = -2x² + 24x + 7500P(x) = -2(x² - 12x - 3750)P(x) = -2(x - 6)² + 7512

At the optimal level of production, the profit will be maximum, and the derivative of the profit will be zero.

dP/dx = -4x + 24 = 0x = 6

Therefore, the optimal level of production is 6÷2=3 units.

But we need to confirm if this is a maximum or a minimum. We need to find the second derivative of the profit at x=3.

d²P/dx² = -4 < 0

Therefore, at x = 3, the function P(x) has a maximum value, hence the optimal level of production is 3 units.

(b) The profit function is P(x) = -2x² + 24x + 7500

(c) The profit at the optimal level is: P(3) = -2(3²) + 24(3) + 7500P(3) = -18 + 72 + 7500P(3) = $7488

Therefore, the profit at the optimal level is $7488, which is rounded off to $7488.

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Find the Lowest Common Multiple (LCM) between the denominators as the first step. Step 2: Multiply each fraction's numerator and denominator by a certain amount to give them the LCM as their new denominator. Step 3: Change the denominator but add or subtract the numerators.

Fractions with Differing Numerators: Adding and Subtracting Fractions:

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Answer:

x = 74°

Step-by-step explanation:

supplementary angle to 94° = 86°

x = 180° - 20° - 86° = 74°

We were given that:

The iguana is 42cm at birth

It increases by 12% every week; r = 12% = 0.12

The number of weeks is represented by ''x'' & the length of the Iguana is represented by ''y''

This function is represented by the expression below:

Answer:

m = \(\frac{9}{5}\)

If needed in decimal format it would be 1.8.

Step-by-step explanation:

m = y2 - y1 / x2 - x1

4 is x1 and -3 is y1

-1 is x2 and -12 is y2

m = -12 + 3 / -1 - 4

(Since you are subtracting for the y's and 3 is negative you change the subtraction sign to an addition sign.)

m = -9 / -5

(Since both 9 and 5 are negative that makes the fraction positive because to negatives cancel each other out.)

m = 1.8 or 9/5