Solve for u.
–8u-16 =-6(u-5)
Simplify your answer as much as possible.

Answer:

-n-2

Step-by-step explanation:

First of all, 2(-2n-1) can simplify to -4n-2 with distributive property.

3n+(-4n-2)= 3n-4n-2=-n-2

Answer:

-n - 2

Step-by-step explanation:

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

\(2( - 2n - 1) = - 2 \times 2n - 2\)

\( - 4n - 2 = 3n - 4n - 2\)

\( = - n - 2\)

Answer:

6 9 4 .....digsigsigishs

Answer: a. y=3      slope = 0

b. x=-4 slope does not exist

Step-by-step explanation:

The correct answer is Graph 1: y = cos(x/4)Graph 2: y = cos(x/2)

Based on the given descriptions of the graphs and the patterns they follow, the correct pairs are:

Graph 1: y = cos(x/4) ⟶ This graph has a period of 8 units and matches the pattern described.Graph 2: y = cos(x/2) ⟶ This graph has a period of 4 units and matches the pattern described.

Graph 3: y = cos(x) ⟶ This graph has a period of 2π (or approximately 6.28 units) and matches the pattern described.

Graph 4: (Not used)

Graph 5: (Not used)

Please note that without visual representation, it's difficult to provide a definitive answer. The pairs are based on the descriptions provided and may vary depending on the actual shapes of the graphs.

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Answer:

16/40 = 40%

Step-by-step explanation:

I divided 16/40 and got 0.4,

To turn a decimal into a percentage, either multiply by 100 or move the decimal to the right 2 times.

Answer:

let y=8x-6=0

soY=6

andy=8x

so,y=6 and x=3/4

The domain of a function is the set of all possible input values (x-values) for which the function is defined and produces a valid output (y-value).

The domain of the function f(x) = 2x^2 + 5x - 12 / x + 4 is the set of all real numbers except x = -4, since division by zero is undefined. So the domain of the function is:

(-∞, -4) ∪ (-4, ∞)

The range of a function is the set of all possible output values (y-values) that the function can produce for values within the domain. The range of the function f(x) cannot be determined from its equation alone, as it depends on the behavior of the function over its entire domain. To determine the range, you would need to find the y-values for specific x-values within the domain and examine the overall behavior of the function.

Answer:

Plug into calc

Step-by-step explanation:

A= P(1+r/n)^nt

A= 10000(1+.13/12)^12*3

The area covered by the signal is 181.37 m²

Here we can see that the area covered by the signal is the fourth of a circle of radius R = 15.2m

The area of a circle of radius R is given by:

A = 3.14*R²

Then the area of a fourth of a circle is:

A = (3.14/4)*R²

Replacing the value of the radius in the formula we will get:

A =  (3.14/4)*(15.2m)² = 181.37 m²

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Answer:

42º

Step-by-step explanation:

90-48=42

Answer:

\(42^{o}\)

Step-by-step explanation:

The square angle indicates it is a right angle, which is \(90^{o}\)

\(90^{o}\) - \(48^{o}\) = \(42^{o}\)

The margin of error for a 95% confidence interval for the true proportion of tongue rollers among students is closest to (d) 0.04

The margin of error is a statistic that describes how much random sampling error there is in survey results.

Given in question,

n = 400

p = 317/400

  = 0.7925

Confidence Level = 95%

                          = 0.95

Formula for margin error, E = \(z\sqrt{\frac{p(1-p)}{n} }\)

Confidence level corresponding to 95 % confidence interval, z = 1.96

Therefore,

Margin Error, E = \(1.96\sqrt{\frac{0.7925(1-0.7625)}{400} }\)

                         = 0.0397

                         ≈ 0.04

Hence, The margin of error for a 95% confidence interval for the true proportion of tongue rollers among students is 0.0397 which is closest to 0.04.

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The population size varies in several ways. The sample size was insufficient, which is the best explanation for why the simulation of the sampling distribution is not roughly normal.

A person's or a researcher's choice of sample size will limit the study's statistical power if it is too small or inadequate for the alpha level and the analyses they have decided to do.

Because of the aforementioned, it is much harder to determine from one's sample whether a statistical effect is existent in the population.

A sample size that is either too small or too large can affect the ability to extrapolate the results, with the latter increasing the detection of differences and accentuating statistical differences that are not clinically significant.

The complete question is:-

A recent survey indicated that the mean time spent on a music streaming service is 210 minutes per week for the population of a certain country. A simulation was conducted to create a sampling distribution of the sample mean for a population with a mean of 210. The following histogram shows the results of the simulation.Which of the following would be the best reason why the simulation of the sampling distribution is not approximately normal?

A. The samples were not selected at random.

B . The sample size was not sufficiently large.

C. The population distribution was approximately normal.

D. The samples were selected without replacement.

E. The sample means were less than the population mean.

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Answer: C. Frank

Step-by-step explanation:

Frank sold 25 cars which is the highest amount.

The true statement is that

The equation of the two line is written by

The slope, m of the lines is calculated the formula

m = (y₀ - y₁) / (x₀ - x₁)

where

m = slope

x₂ and x₁ = points in x coordinates

y₂ and y₁ = points in y coordinates

The slope, m of the linear function is calculated using  the points (10, 6) and (2, 15)

m = (y₀ - y₁) / (x₀ - x₁)

m = (6 - 15) / (10 - 2)

m = (-9) / (8)

m = -9/8

equation passing through point (2, 15)

(y - y₁) = m (x - x₁)

y - 15 = -9/8(x - 2)

y - 15 = -9x/8 + 9/4

y = -9x/8 + 9/4 + 15

y = -9/8 x + 17.25

For line B

The slope, m of the linear function is calculated using  the points (5, 9)

and (14, -1)

m = (9 + 1) / (6 - 14)

m = (-10) / (8)

m = -5/4

equation passing through point (5, 9)

y - 9 = -5/4(x - 5)

y - 9 = -5x/4 + 25/4

y = -5x/4 + 25/4 + 9

y = -5/4 x + 15.25

plotting the lines shows the line intersects at a point

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Answer:

455 to 464

Step-by-step explanation:

The slope of a horizontal line is always zero.

What is slope?

The slope of a line is a measure of how steep the line is. It represents the rate at which the y-coordinate of the line changes with respect to the x-coordinate. Symbolically, it is represented by the letter m, and can be calculated using the following formula:

m = (y₂ - y₁) / (x₂ - x₁)

where (x₁, y₁) and (x₂, y₂) are any two points on the line.

The slope of a horizontal line is always zero. This is because a horizontal line has the same y-coordinate at every point, and therefore, there is no change in the y-coordinate for any change in the x-coordinate.

By definition, the slope of a line is the change in y divided by the change in x. In the case of a horizontal line, the change in y is always zero, since the y-coordinate does not change. So, no matter what value of x you choose, the slope of a horizontal line will always be:

slope = change in y / change in x = 0 / (any non-zero value of x) = 0

So, the slope of a horizontal line is always zero.

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Answer:

237.9 yards

Step-by-step explanation:

90-23=67

cos 67⁰=x/610

x=610 cos 67

x= 610 x 0.39

x=237.9 yards

Answer:

p^2-4p-21=0

Step-by-step explanation:

Where you see (x^2 + 6) you put in p.

p 2  - 21 = 4 ( x 2 + 6 )

p 2 - 21 = 4p

p 2 - 4p - 21 = 0

:)

Less than = <

Quotient= Division

4 divided by X(unknown) will be LESS than -1

Answer---> X divided by 4 < -1

The interest earned after 3 months is $75

What is simple interest?

The simple interest on a deposit is the principal deposited multiplied by the interest and the time the deposit lasted

I=PRT

I=interest=unknown

P=principal=$6000

R=interest rate=5%

T= 3 months=0.25 year

I=$6000*5%*0.25

I=$75

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Answer:

75 dollars

Step-by-step explanation:

i got it right

The points would be matched with their polar coordinates as follows:

A polar coordinate can be defined as a two-dimensional coordinate system, wherein each point on a plane is typically determined by a distance (r) from the pole (origin) and an angle (θ) from a reference direction (polar axis).

In geometry, the relationship between a polar coordinate (r, θ) and a rectangular coordinate (x, y) based on the conversion rules is given by the following polar functions:

a = rcos(θ)    ....equation 1.

b = rsin(θ)     ....equation 2.

Where:

In Mathematics, a negative vector for a given vector has the same magnitude but acts in an opposite direction while an antiparallel vector for a given vector refers to any vector that acts in an opposite direction.

This ultimately implies that, a negative vector equals to an antiparallel vector, but an antiparallel vector isn't always a negative vector.

In this context, we can infer and logically deduce that the points would be matched with their polar coordinates as follows:

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The equation for the bag with all nuts is 13 / ( 1/4 ) = 52 bags

Given data ,

Bob packs 13 pounds of nuts in bags.

Each bag has 1/4 pound of nuts

Now , the number of bags = pounds of nuts / pounds of nuts in each bag

A = 13 / 1/4

On simplifying the equation , we get

A = 52 bags

Hence , the number of bags is 52 bags

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The distance around the track is the perimeter of the given shape which would be = 572.36

Perimeter of an area or an object is the total distance around that area or object.

The shape can be disintegrated as 2 semi circles(a circle) and a square.

The perimeter of a circle = 2πr

where r = 37

π = 3.14

perimeter = 2×3.14 × 37 = 232.36meters

Perimeter of square = 4 ×a

where a = 85

perimeter of square = 4×85 = 340

Therefore the distance round the track = 232.36+340= 572.36

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Answer: cam did not use a zero place holder for the x^3 term

Step-by-step explanation:

The value of \(cos^{(-1)}(-1/2)\) is \(2\pi/3\) radians or 120 degrees.

Therefore correct answer is 2π/3 radians or 120 degrees.

The value of cos^(-1)(-1/2) represents the inverse cosine function, also known as arccosine.

It is the angle whose cosine is equal to -1/2.

To find the value of this angle, we can use the properties of the inverse cosine function.

The cosine function is positive in the first and fourth quadrants of the unit circle.

In the first quadrant, the values of cosine are positive, and in the fourth quadrant, the values of cosine are negative.

Since the given value, -1/2, is negative, we know that the angle we are looking for lies in the second or third quadrant.

To determine the exact angle, we need to find the angle whose cosine is -1/2. In the second quadrant, the cosine function is negative, so we can consider the angle whose cosine is positive 1/2.

This angle is π/3 radians or 60 degrees.

However, we are looking for the angle with a negative cosine, so we need to consider the reference angle in the third quadrant.

The reference angle is π - π/3, which is 2π/3 radians or 120 degrees.

Therefore, the value of \(cos^{(-1)}(-1/2)\) is 2π/3 radians or 120 degrees.

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The slope in the equation p = 52 + 0.04w represents the rate of change in the water bill payment for each additional unit of water consumed.

Specifically, the slope of 0.04 indicates that for every increase of one unit in the number of water units (w), the water bill payment (p) will increase by 0.04 dollars.

This means that the slope represents the incremental cost of each additional unit of water.

In practical terms, the slope of 0.04 implies that for every additional unit of water consumed, the water bill will increase by $0.04.

This indicates a constant rate of increase in the water bill for each additional unit of water used.

It's important to note that the slope remains constant throughout the equation, suggesting a linear relationship between the amount of water consumed and the corresponding bill payment.

Therefore, The slope, in this case, is the coefficient of the variable w, which is 0.04.

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The probable question may be:

What is the meaning of the slope in the equation p = 52 + 0.04w, which models the relationship between the water bill payment p in dollars and the number of units of water w ?

Answer:

I think it's D) 3

Step-by-step explanation:

hope I helped

Answer:

$1.30

Step-by-step explanation:

91/14/5

Answer:

  (b)  -4.5

Step-by-step explanation:

Choosing the correct answer here is not the same as knowing what the correct value is.

You know that √30 < √100 = 10, so the sum must be negative. That is, 10 subtracted from a positive number less than 10 will give a negative result.

You know that 25 < 30 < 36, so √25 < √30 <√36. That is, √30 will be between 5 and 6. If we say √30 ≈ 5.5, then the sum is ...

  -10 +√30 ≈ -10 +5.5 = -4.5

__

Additional comment

Of course, a calculator can tell you the value to the desired precision.