Help me please with math

The temperature at 6pm is -13°F.

What is changes in temperature ?

      The increase in temperature demonstrates the extent of the temperature change that takes place over time. Any amount of time could be considered, such as from one day to the next or from one year to the next. You merely need to apply simple subtraction to compute the increase in temperature.

Here , The temperature at 9 am ,

=> -3.6°F

Then temperature roes 15.4°F

=> -3.6°F+15.4°F =  11.8°F

Between noon and 3pm the temperature went down 15.5°F

=> 11.8°F - 15.5°F

=> -3.7°F

Now again the temperature went down 9.3°F then,

=> -3.7°F-9.3°F

=> -13°F

Therefore the temperature at 6pm is -13°F.

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Answer:

The average is 85

Step-by-step explanation:

In order to find the average, you add all the number and divide with the number of numbers:

76+85+97+82= 340

340/4= 85

Answer:

the last one (bottom right)

Step-by-step explanation:

all the others have at least one x value with several associated y values.

but for a function, for all values of x there can be only one value of y.

The complex number in rectangular form is approximately 3.4 + 11.5i.

The given complex number is in polar form, expressed as r(cosθ + isinθ), where r represents the magnitude or distance from the origin and θ represents the angle in radians or degrees.

To convert the complex number to rectangular form, we use the trigonometric relationships between the real (x) and imaginary (y) components of the complex number. The real component, x, is given by r * cosθ, and the imaginary component, y, is given by r * sinθ.

In this case, the magnitude, r, is 12, and the angle, θ, is 286°. Converting the angle to radians, we have θ ≈ 286° * π/180 ≈ 4.988 radians.

Calculating the rectangular form, we get:

x = 12 * cos(4.988) ≈ 3.4

y = 12 * sin(4.988) ≈ 11.5

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Research has shown that competent communicators achieve effectiveness by adjusting their behaviors to the person and situation (option e).

Effective communication involves being adaptable and responsive to the specific context, individual preferences, and the needs of the situation.

Competent communicators recognize that different people have different communication styles, preferences, and expectations. They understand the importance of tailoring their communication approach to effectively connect and engage with others.

This may involve using appropriate language, tone, non-verbal cues, and listening actively to understand the needs and perspectives of others.

By adapting their behaviors, competent communicators can build rapport, foster understanding, and promote effective communication exchanges. They are mindful of the social and cultural dynamics at play, and they strive to communicate in a way that is respectful, inclusive, and conducive to achieving mutual goals.

In summary, competent communicators understand that effective communication is not a one-size-fits-all approach. They adjust their behaviors to the person and situation, demonstrating flexibility and adaptability in order to enhance communication effectiveness.

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Competent communicators achieve effectiveness mostly by adjusting their behaviors to suit the person they are communicating with and the situation they find themselves in. While other factors, like having a broad vocabulary or giving feedback, play a part in effective communication, the former is considered the most crucial.

Research suggests that competent communicators achieve effectiveness mostly through adjusting their behaviors depending on the person they are communicating with and the situation they are in. This is option e. of your question. Communicating effectively involves behaviors like active listening, understanding the other person's point of view, being able to express thoughts and ideas clearly, and being polite and respectful. While a broad vocabulary (option b.) can be useful, it is not as crucial as adapting your behavior to fit the situation. Moreover, giving feedback (option d.) is a part of effective communication but not the sole defining factor. Apologizing when offending others (option c.) is also important but it doesn't necessarily make one a competent communicator. Using the same type of behavior in various situations (option a.) might not always work, as different situations and individuals require different communication styles.

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Answer:

200 sq cm

Step-by-step explanation:

Lateral surface area is the surface area without the bases, or without the top and bottom. So, you just add up the area of the 4 sides.

The front and back are both 10 x 20, so 200 each = 400

The left and right are 5 x 20, so 100 each = 200

The lateral surface area is 200 sq. cm.

Answer:

it would equal 2p-1 as a mathematical equation

Step-by-step explanation:

By considering the given information that angles 21 and 23 are supplementary and analyzing the properties of supplementary angles and parallel lines, we have proven that segment HI is parallel to segment JK.

To prove that segment HI is parallel to segment JK based on the given information that angles 21 and 23 are supplementary, we can utilize the properties of supplementary angles and parallel lines.

First, let's examine the given figure and information.

We have a capital letter A with serifs, where segment HI represents one of the serifs, and segment JK represents a horizontal line within the letter A.

To begin the proof, we'll make use of the fact that angles 21 and 23 are supplementary.

Supplementary angles are defined as two angles whose measures sum up to 180 degrees.

We can observe that angle 21 is an interior angle of triangle AHI, and angle 23 is an interior angle of triangle AJK.

Since angles 21 and 23 are supplementary, their sum is equal to 180 degrees.

Now, let's assume that segments HI and JK are not parallel.

In this case, if we extend lines HA and JA, they will eventually intersect at point P.

Since the angles formed at the point of intersection are supplementary (angle 21 + angle 23 = 180 degrees), it would imply that angle 21 and angle PJK, as well as angle 23 and angle PHI, are also supplementary.

However, this leads to a contradiction. In the original figure, we can observe that angle 21 and angle PJK do not form a supplementary pair since angle PJK is a right angle (90 degrees) in the letter A.

Therefore, our assumption that segments HI and JK are not parallel must be incorrect.

Consequently, we can conclude that segment HI is indeed parallel to segment JK.

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(Hey, angles rock!)

Answer:

45 + 60 = 105

Step-by-step explanation:

ABC consists of two angles, angle ABD and angle DBC. Therefore, the sum of the measures of angles ABD and DBC is the measure of ABC.

45 + 60 = 105

Answer:

-4

Step-by-step explanation:

the required slope can be calculated using the formula:

\(s=\frac{Y_C-Y_D}{X_C-X_D}=\frac{5-1}{2-3}=-4.\)

Answer:

You will have $5,792 in your account by your high school graduation

Step-by-step explanation:

Simple Interest

Interest calculated on the original principal only of a loan or on the balance of an account.

Unlike compound interest where the interest earned in the compounding periods is added to the new principal, simple interest only considers the principal to calculate the interest.

The interest earned is calculated as follows:

I=P.r.t

Where:

I = Interest

P = initial principal balance

r = interest rate

t = time

The parents invested P = $5,000 in CD account that pays r=0.88% annual interest rate. The rate must be converted to decimal, thus r=0.88/100 =0.0088.

We are required to calculate the total money in the account after t=18 years.

First, we calculate the interest:

I = $5,000 * 0.0088 * 18

I = $792

Adding interest to the principal, we have the future balance in the account:

A = $5,000 + $792 = $5,792

You will have $5,792 in your account by your high school graduation

Answer:

The games lost by the team is:

Step-by-step explanation:

First, we must know the points obtained in each case:

If the team has 53 points, and had 11 games draws (it means 11 points), then:

How the lost games doesn't give points, the 42 points are from won games, then we calculate the won games taking into account each game gives 3 points:

Taking into account the total games (33),how we know the won games (14) and the draw games (11), we can calculate the lost games:

So, the number of games the team lost is 8 games.

Answer:

5 basketballs and 2 soccer balls

Step-by-step explanation:

5 times 20= 100

2 times 18= 36

equals 136

4 basketballs and 6 soccer balls- wrong-185

2 basketballs and 7 soccer balls-wrong-166

6 basketballs and 5 soccer balls- wrong- over 200

Answer:

The Inequality Equation is

20b + 18s <_ 150

5 Basketballs and 2 Soccer Balls

Step-by-step explanation:

Answer:

1/4x + -1/2

Step-by-step explanation:

Step 1 :

-4x - 3 = -16j -5

Step 2:

-16j − 5=−4x+3

Step 3:

−16j−5+5=−4x+3+5

−16j=−4x+8

Step 3:

-16j/-16 = -4x + 8/-16

Answer:

j = 1/4x + -1/2

Answer:

The y-intercept is 1

at the point (0,1)

Step-by-step explanation:

The y-intercept is the point at which a graph crosses the y-axis.

Answer:

- 6

Step-by-step explanation:

3 - 9 = -6

Answer:

Step-by-step explanation:

\(3 + (-9) \\\\\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=3-9\\\\\mathrm{Subtract\:the\:numbers:}\:3-9\\=-6\\\)

THE ANSWER IS 782,006 HOPE IT HELPS

Answer:

its irrational

7.07106781187

look at how the decimals are all over the place

if it was rational it would've been something like this

7.070707070707 or 7.071071071071

hope that answers your question

Step-by-step explanation:

Initially travelling away from it at a speed of +0.156 m/s, a M = 9.00 kilogram ball collides head-on with a M = 10.0 kg ball that is moving at +3.00 m/s.

\($v_{1, \mathrm{f}}=\left(\frac{m_1-m_2}{m_1+m_2}\right) v_{1, \mathrm{i}}+\left(\frac{2 m_2}{m_1+m_2}\right) v_{2, \mathrm{i}}$$v_{2, \mathrm{f}}=\left(\frac{2 m_1}{m_1+m_2}\right) v_{1, \mathrm{i}}+\left(\frac{m_2-m_1}{m_1+m_2}\right) v_{2, \mathrm{i}}$\)

If you know the other values of an object's properties, you may determine its momentum or velocity using the momentum equation p = m•v.

When momentum, p, and kinetic energy, KE, are conserved during a collision, the collision is said to be elastic. KE0 = KEf and po = pf are the results, respectively. KE = 1/2 mv2, thus we will write 1/2 m1 when we remember that (v1i) 2 + 1/2 m2(vi)2 = 1/2 m1(v1f) (v1f) 2 + 1/2 m2 (v2f) (v2f) When the cue ball and the 2 ball collide with velocities of 0.0m/s before and after, 100% of the momentum of the cue ball is transmitted to the "8." It follows that the "8" ball is moving at a speed of 2.0 m/s. The masses' initial kinetic energy is given by K.E1 = 1/2 m1u21 + 1/2 m2u22.

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Answer:

45%

Step-by-step explanation:

17 + 14 = 31 8th graders

14 divided by 31, times 100 = 45%

So, 45% of the 8th graders estimated they spend less than an hour a day on social media.

The negative value requested (a. te) represents the lower end of the confidence interval minus the mean:
a. te = 6.639 - 7 ≈ -0.361 (rounded to 3 decimal places)

To calculate the 80% confidence interval for the mean sleep time, we'll use the following formula:

CI = mean ± (t * (standard deviation / √sample size))

Given:
- Mean time = 7 hours
- Standard deviation = 0.6 hour
- Sample size = 6 people

First, we need to find the t-value (t-score) for an 80% confidence interval and degrees of freedom (df) = sample size - 1 = 6 - 1 = 5. Using a t-distribution table or calculator, the t-value for a two-tailed test with 80% confidence (or 0.1 significance level) and df = 5 is approximately 1.476.

Now, plug in the values into the formula:

CI = 7 ± (1.476 * (0.6 / √6))

Calculate the margin of error:

Margin of error = 1.476 * (0.6 / √6) ≈ 0.361

So, the 80% confidence interval is:

Lower limit: 7 - 0.361 ≈ 6.639 hours
Upper limit: 7 + 0.361 ≈ 7.361 hours

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Answer:

x = 3

Step-by-step explanation:

2(x+4) + 2 = 5x + 1

2x + 8 + 2 = 5x + 1

2x + 10 = 5x + 1

-3x + 10 = 1

-3x = -9

x = 3

To solve for x, we need to simplify the equation and isolate the variable. Let's proceed with the given equation:

2(x + 4) + 2 = 5x + 1

First, distribute the 2 to the terms inside the parentheses:

2x + 8 + 2 = 5x + 1

Combine like terms on the left side:

2x + 10 = 5x + 1

Next, let's move all terms containing x to one side of the equation and the constant terms to the other side. We can do this by subtracting 2x from both sides:

2x - 2x + 10 = 5x - 2x + 1

Simplifying further:

10 = 3x + 1

To isolate the x term, subtract 1 from both sides:

10 - 1 = 3x + 1 - 1

9 = 3x

Finally, divide both sides of the equation by 3 to solve for x:

9/3 = 3x/3

3 = ×

Therefore, the solution to the equation is x = 3.

Assuming the cell tower provides a circular coverage area with a 30-mile radius, we can find the area of this circle using the formula for the area of a circle: A = πr^2.

Substituting r = 30 miles, we get A = π(30)^2 ≈ 2,827.4 square miles. One-quarter of this area is blocked by signal-blocking devices, so the remaining area where cell users can obtain a signal is 3/4 of the total area. Thus, the area where cell users can obtain a signal is (3/4)(2,827.4) ≈ 2,120.6 square miles.

To find the corresponding radius, we can use the formula for the area of a circle and solve for the radius: A = πr^2, so r = √(A/π). Substituting A = 2,120.6 square miles, we get r ≈ 26.1 miles. Therefore, within a radius of approximately 26.1 miles from the cell tower, cell phone users can obtain a signal.

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The volume of the cylnder is  9,728.5 ft³

For a cylinder of radius R and height H, the volume is given by:

V = pi*R^2*H

Where pi = 3.14

Here we know that the height is.

H = (20 + 1/2) ft = 20.5 ft

And the diameter is (1 + 1/5) times the height, then:

D = (1 + 1/5)*(20 + 1/2) ft = (1.2)*(20.5)ft = 24.6ft

And the radius is half of that, so:

R = 12.3ft

Then the volume is:

V = 3.14*(12.3ft)^2*20.5ft = 9,728.5 ft³

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If a vertical line is placed at certain points on this graph, it will intersect the figure at more than one point. The definition of a function is a line where each input value of x has one and only one output value of y. This is where the vertical line test comes in.

In practice, this means that if a vertical line is placed on the figure and it intersects it at two points, the figure is not a function.

This figure fails this test, so it is not a function.

Answer:

17 years

Step-by-step explanation:

a light year is a measurement of distance where each light year is equal to the distance light would travel in a year