Plz need help rn What is m

The answer is:

\(\large\textbf{They aren't equivalent.}}\)

In-depth explanation:

To determine the answer to this problem, we will use one of the exponent properties:

\(\sf{x^{-m}=\dfrac{1}{x^m}}\)

And

\(\sf{\dfrac{1}{x^{-m}}=x^m}\)

Now we apply this to the problem.

What is 4⁻³ equal to? Well according to the property, it's equal to:

\(\sf{4^{-3}=\dfrac{1}{4^3}}\)

And this question asks us if 4⁻³ is the same as 1/4⁻3.

Well according to the calculations performed above, they're not equivalent.

Answer:

Step-by-step explanation:

Here, MN= NP

→ \(128=2x+70\)

→ \(2x=128-70\)

Subtract :-

→ \(2x=58\)

Divide both sides by 2:-

→ \(\frac{2x}{2}=\frac{58}{2}\)

→ \(x=29\)

OAmalOHopeO

Answer:

The first choice

Step-by-step explanation:

7/8 x + 3/4 = -6

6 (x/8) + 3/4 = -6

Answer:

b.

Step-by-step explanation:

The amount of time that Nora practices flips is; t = 1 ¹/₄

How to Solve Algebra problems?

The BODMAS rule would be used to simplify the expression, BODMAS is an abbreviation for bracket, of, division, multiplication, addition and subtraction. It dictates the order in which a mathematical expression should be solved.

We are told that;

Nora spends time practicing flips on the trampolines. Let this be t.

Then, she spends 1/2 of an hour eating birthday cake with her friends.

Thus, total amount of time spent on flips and eating with her friends is;

t + ¹/₂ = 1 ³/₄

t = 1 ³/₄ - ¹/₂

t = 1 ¹/₄

Thus , the amount of time that Nora practices flips is; t = 1 ¹/₄

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Given question is incomplete , Complete Question is;

After arguing for two weeks, Nora convinced her parents to have her birthday party at FlyZone trampoline park. As soon as she gets there, Nora spends time practicing flips on the trampolines. Then, she spends 1/2 of an hour eating birthday cake with her friends. In all, Nora spends 1 3/4 hours at FlyZone. Which equation can you use to find the amount of time Nora practices flips?

Solve this equation for (t) to find the amount of time Nora practices flips

Answer:

The tablet costs more than the smartphone

Step-by-step explanation:

1 year tablet = $1.50

1 year smartphone = $0.02x12months = $0.24

Answer:

the domain will be \(x\neq -4\)

Step-by-step explanation:

(-inf, -4) U (--4, inf)

x<-4; x>-4

The dimensions of the rectangular poster are 9 inches by 22 inches.

Let's assume the width of the rectangular poster is x inches.

According to the given information, the length of the poster is 4 more inches than two times its width. So, the length can be expressed as 2x + 4 inches.

The formula for the area of a rectangle is length × width. In this case, the area is given as 198 square inches.

Therefore, we have the equation:

(2x + 4) × x = 198

Expanding the equation:

\(2x^2 + 4x = 198\)

Rearranging the equation to standard quadratic form:

\(2x^2 + 4x - 198 = 0\)

To solve this quadratic equation, we can use factoring, completing the square, or the quadratic formula. Let's use the quadratic formula:

x = (-b ± √\((b^2 - 4ac\))) / (2a)

Plugging in the values:

x = (-4 ± √\((4^2 - 4(2)(-198)))\) / (2(2))

x = (-4 ± √(16 + 1584)) / 4

x = (-4 ± √1600) / 4

x = (-4 ± 40) / 4

Simplifying:

x = (-4 + 40) / 4 = 9

x = (-4 - 40) / 4 = -11

Since we are dealing with dimensions, the width cannot be negative. Therefore, the width of the poster is 9 inches.

Substituting the value of x back into the length equation:

Length = 2x + 4 = 2(9) + 4 = 18 + 4 = 22 inches

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The optimal values of these parameters are:

a. β₁ = 0

b. β₂ = 0

The linear regression y = β1 + β2x + e, assuming that the sum of squared errors (SSE) takes the following form:

SSE = 382 + 681 + 382 + 18β1β2

Derive the partial derivatives of SSE with respect to β1 and β2 and solve the optimal values of these parameters.

Given that SSE = 382 + 681 + 382 + 18β1β2 ∂SSE/∂β1 = 0 ∂SSE/∂β2 = 0

Now, we need to find the partial derivative of SSE with respect to β1.

∂SSE/∂β1 = 0 + 0 + 0 + 18β2 ⇒ 18β2 = 0 ⇒ β2 = 0

Therefore, we obtain the optimal value of β2 as 0.

Now, we need to find the partial derivative of SSE with respect to β2. ∂SSE/∂β2 = 0 + 0 + 0 + 18β1 ⇒ 18β1 = 0 ⇒ β1 = 0

Therefore, we obtain the optimal value of β1 as 0. Hence, the partial derivative of SSE with respect to β1 is 18β2 and the partial derivative of SSE with respect to β2 is 18β1.

Thus, the optimal values of β1 and β2 are 0 and 0, respectively.

Therefore, the answers are: a. β₁ = 0 b. β₂ = 0

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For a random day with the standard deviation, the probability that there are less than 300 shoppers on a random day, is 0.00585.

Probability is a measure of the likelihood that an event will occur.

The average total number of shoppers on a grocery store in 1 day is 505; the standard deviation is 115.

Let, X be the random variable denoting the number of shoppers on a random day.

Then, X follows normal with mean 505 and standard deviation of 115.

Then, we can say that,

Z=(X-505)/115 follows standard normal with mean 0 and standard deviation of 1.

We have to find

P (250 <X< 450)

= P {(250-505)/155} < Z < {(450-505)/155}

= P (-1.64 <Z< -0.03)

Where, Z is the standard normal variate.

ρ = -1.64 <ρ< -0.03

Where, ρ is the distribution function of the standard normal variate.

From the standard normal table, this becomes

=0.00585

For a random day, the probability that there are less than 300 shoppers on a random day, is 0.00585.

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The area of the largest rectangle is 46.47 square root.

Consider a semi-circle with a rectangle ABCD inscribed in it.

Let, O = centre of the semi-circle

A and B lies on the base of the semi-circle

OA = OB = x

D and C lie on the semi-circle

BC = AD = y

AB = CD = 2x

By Pythagorean theorem,

CB² + OB² = OC²

⇒ y² + x² = (6)²

⇒ y² = 36 - x²

⇒ y = √(36 - x²)

Now, area of rectangle in terms of x,

Area, A = 2x × y

= 2x × √(36 - x²)

Differentiating,

A' = 2 × √(36 - x²) - 2x²/(36 - x²)

When x = 0, y = 6 and when x = 6, y = 0, area = 0.

It implies that area is maximum when the value of x lies between 0 and 6.

This will occur where A’ = 0.

⇒ 2 × √(36 - x²) - 2x²/(36 - x²) = 0

⇒ 2 × √(36 - x²) = 2x²/(36 - x²)

On simplification, we get,

⇒ 2 × (36 - x²) = 2x²

⇒ 36 - x² = x²

⇒ 2x² = 36

⇒ x² = 36/2

⇒ x = √36/2

Now, y = √(36 - x²) becomes

⇒ y = √(36 - (√36/2)²)

⇒ y = √(36 - 36/2)

⇒ y = √(96 - 36)/2

⇒ y = √60/2

Maximum area = 2xy

= 2(√36/2)(√60/2)

= 46.47

Therefore, the area of the largest rectangle = 46.47 square units.

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Answer:

1407.4 cm³ to nearest tenth

Step-by-step explanation:

volume of cyclinder =  π r² h , where r is radius and h is the height.

volume = π (8)²  (7)

= 7 (64) π

= 448π

= 1407.4 cm³ to nearest tenth

The number of books that her sister has before giving any to Sarah is 30 books

Sarah received three fifths of her sister's book collection

Number of books that Sarah received = 18 books

The fraction of the books that Sarah received = 3/5

Consider the total number of books as x

Then we have to find the total number of books

So the equation will be

x × (3/5) = 18

Divide the terms in the equation

x × 0.6 = 18

Move 0.6 to the right hand side of the equation

x = 18 / 0.6

Divide the terms

x = 30 books

Hence, number of books that her sister has before giving any to Sarah is 30 books

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For this exercise we must correct the error of the given fraction, differentiating the properties of addition and multiplication, so:

1)This error occurs frequently because when simplifying in a multiplication or division it cannot be done in the operations of subtraction and addition.

2)As this error is very common, it has probably already occurred. But one way to resolve this is to pay attention and redo the math.

to understand this error we have to:

\(\frac{(3)(5)}{3} = 5\)

In the case of multiplication the 3 of the numerator can be simplified with the 3 of the denominator, the other case will be:

\(\frac{3+5}{3} = \frac{8}{5}\)

In the case of addition or subtraction, you should always keep the denominator.

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a) The equation of the regression Line is; y = -1.189 +  0.0021x

b) What the y-intercept of the regression line indicates is that regression line is only in the area with y > 0.

c) The slope of the regression line predicts an increase of 0.0021 in GPA score.

d)  The GPA of a freshman who scored a combined 1400 is; 1.751

e) The SAT scores are effective in predicting academic success during the first semester of the freshman year at this college.

f) Positive

a) Let SAT be represented as x and let GPA be represented as y.

Now, formula for Covariance is;

Covariance = r(s_x * s_y)

We are given;

correlation; r = 0.47

s_x = 123

s_y = 0.56

Cov = 0.47 * 123 * 0.56 = 20.81

Now, the equation is;

y = B₀ + B₁x

Where;

B₁ = cov/var(x) = cov/sₓ²

B₁ = 20.81/(123 * 123)

B₁ = 0.0021

B₀ = 2.66 - (1.833 * 0.0021)

B₀ = -1.189

Thus, the equation is;

y = -1.189 +  0.0021x

b) GPA can't be negative. So it is a meaningless value. Thus, the regression line is only in the area with y > 0.

c) For each additional SAT score, the model predicts an increase of 0.0021 in GPA score.

d) To predict the GPA of a freshman who scored a combined 1400, it is the formula;

y(1400) = −1.189 + (0.0021 * 1400)

y(1400) = 1.751

e) r² = 0.472

r = 0.2209.

SAT scores is not an effective predictor of college GPA, There are only 22.09% of variability in GPA can be explained by the model.

f) Positive, it means GPA is higher than model predicts

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Answer:

She made $664 during that work week.

Step-by-step explanation:

As Mae Ling earns $ 335 per week plus a commission of 7% with respect to the value of the sales she makes, and in the week she made sales for $ 4,700, to determine how much money she earned in the week the following calculation must be made:

335 + (4,700 x 7/100) = X

335 + (32,900 / 100) = X

335 + 329 = X

664 = X

Therefore, during that week Mae Ling earned $ 664.

Answer: 0.434

Step-by-step explanation:

Answer:

3 (x + 16) 2 + 11 12

Step-by-step explanation:

brainliest please

Answer:

81 miles

Step-by-step explanation:

From the question 7/10 of the trip has been said to be downhill. It therefore means that 3/10 is not downhill.

Miles = 270

Downhill = 7/10

Not downhill = 3/10

Now we have To calculate Miles that are not downhill (uphill)

But first I calculated for the number of downhill miles

270x7/10

Downhill = 189 miles

To get the number of not downhill miles

I subtracted 189 from the total number of miles on the question.

270 - 189

= 81 Miles.

Therefore 81 Miles of the trip are not downhill.

If you have anymore questions or need clarity please let me know on the comment section. Thank you and Good luck!

The average weight of a random sample of 50 NFL players is 244.4 pounds.

An equation shows the relationship between two or more numbers and variables.

For a samples size (n) in normally distributed population, the sample mean is normally distributed, with mean μX=μ and standard deviation σX=σ/√n.

Hence for a sample of 50 NFL players with an average weight of 244.4 pounds:

Mean = mean = 244.4 pounds

The average weight is 244.4 pounds.

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answer :

9(2p+1)

steps

(10p+10)+(8p−1)

18p+9

9(2p+1)

chatgpt

In triangle ABC, Length of DE = (a*x)/(b+c). We can use similarity of triangles  to to get the proportion between corresponding sides.

Similarity of triangles can help us to relate the lengths AB, DE, BE, and EC.

Now, since, DE =  (a*x)/(b + c) in terms of a, b and c(given).

Now, we can relate the corresponding sides of triangle ABC and ADE.

The denominator (b + c) is equal to the sum of the lengths BE and EC.

Therefore, to express x in terms of a, b, c when in triangle ABC, DE || AB, and AB = a, DE = x, BE = b and EC = c.

DE = (a*x)/(b + c).

This question uses similarity of triangles which is a geometric concept. It helps us to correspond two triangles with different shapes and sizes, and when two triangles are similar their ratios of lengths is proportional to each other.

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Answer:

-12 and -4

Step-by-step explanation:

-12 + (-4)  = -16

-12 x -4 = 48

Answer:

-4, -12

Step-by-step explanation:

-4 + (-12) = -16

-4 x -12 = 48

Option - B : Decision support system is a flexible tool for data analysis, since its reports do not have a fixed format.

  Decision support systems, a subset of business intelligence, are created to help organisations make sensible business decisions based on vast volumes of analysed data. Huge volumes of data are analysed using an interactive information system called a decision support system (DSS) to aid in the direction of business choices. A DSS aids management, operations, and planning levels of an organisation in making better decisions by assessing the importance of uncertainties and the tradeoffs involved in selecting one option over another. A DSS uses a variety of raw data, papers, personal knowledge, and/or business models to aid users in making decisions. A DSS may make use of relational data sources, cubes, data warehouses, electronic health records (EHRs), income projections, sales projections, and other sources.

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(2n+7)(n+1)(n-1). So the first one.

To find the value of sin(e) given that \(cos(e) = \frac{14}{17}\) and e terminates in the interval [0°, 90°], we can use the Pythagorean identity for trigonometric functions.

The Pythagorean identity states that \(\sin^2(e) + \cos^2(e) = 1\).

Since we know the value of cos(e), we can substitute it into the equation:

\(\sin^2(e) + \left(\frac{14}{17}\right)^2 = 1\)

Simplifying the equation:

\(\sin^2(e) + \frac{196}{289} = 1\sin^2(e) = 1 - \frac{196}{289}\\\sin^2(e) = \frac{289 - 196}{289}\\sin^2(e) = \frac{93}{289}\)

Taking the square root of both sides:

\(\sin(e) = \pm \sqrt{\frac{93}{289}}\sin(e) \approx \pm 0.306\)

Since e terminates in the interval [0°, 90°], the value of sin(e) should be positive. Therefore, the solution is:

\(\sin(e) \approx \pm 0.306\)

Please note that the value is approximate and given in decimal form.

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Answer:

The constant of proportionality for this relationship is 6. The price of 6 bags of candy is $36.

Step-by-step explanation:

Assuming that bag of candies is x and price is y, then the constant of proportionality will be how much y increases for every increase of x by 1.

When x increases by 1, y increases by 6. So, the constant of proportionality for this relationship is 6.

Using this, to find the value of y when \(x=6\), we can multiply 6 by 6 because for every time x increases by 6, y increase by \(6\cdot6\) times.

\(6\cdot6=36\)

So when x = 6, y = 36.

Hope this helped!

Answer:

I hope this helps!

Step-by-step explanation:

Answer:

Larger number = 34

Smaller number = 17

Step-by-step explanation:

Given that:

Sum of numbers = 51

Let,

x be the larger number

y be the smaller number

According to given statement;

x+y=51       Eqn 1

x = 2y        Eqn 2

Putting x=2y in Eqn 1

2y+y=51

3y=51

Dividing both sides by 3

\(\frac{3y}{3}=\frac{51}{3}\\y=17\)

Putting y=17 in Eqn 2

x=2(17)

x=34

Hence,

Larger number = 34

Smaller number = 17

For the expressions  3x+4 –2x, and 5x+2x+x the simplified expression after combining like terms is x+4 and 8x.

The given expressions are  3x+4 –2x, and 5x+2x+x

We have to simplify these expressions by combining the like terms

For the expression 3x+4 –2x

We have to combine like terms

x+4

Now for expression  5x+2x+x

Combine the like terms to get

8x

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