Add.
5/3 + 2/4

Please help!!!

We know that the time is inversely proportional to the work.

Let t₁ is the time taken by Jeff and t₂ is the time taken by Jeff's dad.

We know that the formula:

Given:

Therefore,

Hence, it took Jeff's dad 12hours to wash the car himself.

well, it'll just be 13% of 720,000

\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{13\% of 720000}}{\left( \cfrac{13}{100} \right)720000}\implies 93600\)

Answer:

The number represent the increase in the world population is 0.768 billion.

Step-by-step explanation:

Given : The world population in 2013 was about 7.125 billion. In 2003, it was about 6.357 billion.

To find : Which number represents the increase in the world population between 2003 and 2013?

Solution :

The world population in 2013 was about 7.125 billion.

The world population in 2003 was about 6.357 billion.

The world population between 2003 and 2013 is

The population of 2013- The population of 2003

=7.125\text{ billion}- 6.357\text{ billion}=7.125 billion−6.357 billion

=0.768\text{ billion}=0.768 billion

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Selena got the greater fraction of the questions correctly as 5/6 > 4/6.

For the stated data in the question.

Correctly answered by Selena in science quiz = 5/6

In decimal form.

5/6 = 0.833

Correctly answered by Ana in science quiz = 4/6 .

In decimal form;

4/6 = 0.666

Now,

0.666 > 0.8333

Thus,

5/6  > 4/6

Therefore, Selena got the greater fraction of the questions correctly as 5/6 > 4/6.

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i) Distance between X and Y along the equator ≊ 6258 km

ii) Distance of X from the North pole ≊ 10057 km

What is the equator ?

The Equator is a fictitious line that circles the globe's center. The line that separates the Northern Hemisphere from the Southern Hemisphere is located halfway between the North and South Poles.

The Longitude difference = 123° - 67° = 56°

(i) Distance between X and Y along the equator

= (56/360)×2×(22/7)×6400cos(0)

= (56/360)×2×(22/7)×6400

= 6257.78 km  

≊ 6258 km

(ii) Latitude difference =  90°

Distance from the North pole

= (90/360)×2×(22/7)×6400

= 10057.14 km

≊10057 km

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Answer: 15

Step-by-step explanation:

You have to multiply what Jackson made last year (24 cups) times 10 which equals 240. after that you do 240 divided by 4, which equals 60, and 60 divided by 4 again, which gives us the answer (15) (hope you could understand that) Also sorry for not answering in time!

The number that is less than a whole, in 3 decimal places and when rounded to the nearest tenth is 0.78 will be 0.775.

A fraction expressed in a particular way is called a decimal. As an alternative to expressing 1/2, you might write 0.5 instead, with the zero in the ones place and the five in the tenths position. The word decimus, which means tenth in Latin, is derived from the base word decem, or 10.

It should be noted that 0.775 is in 3 decimal places. In this case, the last 5 will be converted and this will become 0.78.

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3 gallons are the starting value determined by the slope-intercept relation.

One of the most popular ways to represent a line's equation is in the slope intercept form of a straight line. When the slope of the straight line and the y-intercept are known, the slope intercept formula can be used to determine the equation of a line ( the y-coordinate of the point where the line intersects the y-axis). The equation of a line is the equation that each point on the line fulfils.

To determine how much gas is entering his car each second, we must determine the rate of change:

Rise / Run is the rate of change.

Rate of change: (11 - 3 - 11) / (48 - 0)

Change rate: 8/48 = 1/6 gallons

Making use of the slope-intercept relationship:

Y = b(x) + c(slope); c(initial gas amount)

Choose any (x, y) point pair on the table:

(0, 3)

3 = 1/6x + c 3 = 1/6(0) + c\s3 = 0 + c\sc = 3

As a result, the starting point is 3 gallons.

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Answer:

38

Step-by-step explanation:

When P is not on the line l, the image and pre-image are: a. parallel.

In Geometry, a dilation is a type of transformation which typically transforms the dimensions or side lengths of a geometric object, without affecting its shape.

Generally speaking, a dilation is not a rigid transformation because it can preserve angle measure, orientation, perpendicular lines, betweenness of points, parallel lines, and collinearity in any geometric figure.

In conclusion, we can reasonably infer and logically deduce that the the image and pre-image are still parallel lines when P is not on the line l.

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The magnitude of the velocity is 34.2 m/s.

The given problem can be solved using kinematic equations. We have been given the initial velocity of the coin, u = 5.2 m/s, the time taken by the coin to reach the ground, t = 4 seconds and the height of the house from where the coin was thrown, h = 3 m.Let's solve the first part of the problem to find out the maximum height the coin reaches.We know that when the coin reaches its maximum height, its vertical velocity becomes zero. So we can use the following equation:v² = u² + 2asHere, v = 0, u = 5.2 m/s, s = h (height reached by the coin), and a = -9.8 m/s² (acceleration due to gravity).0 = (5.2)² + 2(-9.8)s⇒ s = (5.2)²/2(9.8)⇒ s ≈ 1.35 m

Therefore, the maximum height that the coin reaches is approximately 1.35 m.Now let's solve the second part of the problem. We need to find out the velocity of the coin when it hits the ground. We can use the following equation to find the final velocity:v = u + atHere, u = 5.2 m/s, a = -9.8 m/s², and t = 4 seconds.v = 5.2 + (-9.8)(4)⇒ v ≈ -34.2 m/sThe negative sign indicates that the coin hits the ground with a downward velocity of 34.2 m/s.

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Explanation:

Both functions are lines. The equation of a line in slope-intercept form is:

Where m is the slope and b is the y-intercept.

For function f(x) the slope is 1/2 and the y-intercept is -1.

For function g(x) the slope is 3/2 and the y-intercept is -3.

It is clear that the slope of function g(x) is three times the slope of function f(x). Also, the y-intercept of g(x) is three times the y-intercept of f(x). Therefore the constant k is 3

Answer:

k = 3

Answer:

•cos(s+t) = cos(s)cos(t) - sin(s)sin(t) = (-⅖).(-⅗) - (√21 /5).(⅘) = +6/25 - 4√21 /25 = (6-4√21)/25

•cos(s-t) = cos(s)cos(t) + sin(s)sin(t) = (-⅖).(-⅗) + (√21 /5).(⅘) = +6/25 + 4√21 /25 = (6+4√21)/25

cos(t) = ±√(1 - sin²(t)) → -√(1 - sin²(t)) = -√(1 - (⅘)²) = -⅗

sin(s) = ±√(1 - cos²(s)) → +√(1- cos²(s)) = +√(1 - (-⅖)²) = √21 /5

The minimum number of points required to mark all maximum, minimum, and zeros of a sinusoid is 3. A sinusoid is a wave-like pattern that repeats itself over time. The minimum number of points required to mark all maximum, minimum, and zeros of a sinusoid is 3.

It consists of maximum points (the highest points of the wave), minimum points (the lowest points of the wave), and zeros (the points where the wave crosses the x-axis). To mark all of these points, you only need to identify three points on the sinusoid. One point should be a maximum point, another should be a minimum point, and the third should be a zero.

These three points are enough to determine the entire wave pattern and mark all the maximum, minimum, and zeros.
So, in conclusion, the minimum number of points required to mark all maximum, minimum, and zeros of a sinusoid is 3.


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The equivalent resistance of the circuit is given by:

D. 2 Ω

In this problem, there are two resistors in parallel, with resistances of 4 Ω, hence:

Req = 4 x 4/(4 + 4) = 16/8 = 2 ohms.

Hence option D is correct.

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Answer:

b

Step-by-step explanation:

The approximate value of x in the equation 5 to the power of 2x=20 is 0.93

From the question, we have the following parameters that can be used in our computation:

5 to the power of 2x=20

As an expression, we have

5^(2x) = 20

Take the natural logarithm of both sides

so, we have the following representation

2x = ln(20)/ln(5)

Evaluate the quotients

This gives

2x = 1.86

So, we have

x = 0.93

Hence, the value of x is 0.93

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I can help you with that problem i just did that on my own.

The probability that the project is done in time by either Company A or Company B is 0.75.

To find the probability that the project is done in time by either Company A or Company B, we can use the concept of independent events. The probability of an event happening is equal to 1 minus the probability of the event not happening.

Step 1: Calculate the probability of the project not being done in time by either company.

The probability that the project is not done in time by Company A is 1 - 0.49 = 0.51.

The probability that the project is not done in time by Company B is 1 - 0.43 = 0.57.

Step 2: Calculate the probability of the project not being done in time by both companies.

Since the events are assumed to be independent, we can multiply the probabilities.

The probability that the project is not done in time by both companies is 0.51 * 0.57 = 0.2907.

Step 3: Calculate the probability that the project is done in time by either company.

To find the probability that the project is done in time by either company, we subtract the probability of the project not being done in time by both companies from 1.

The probability that the project is done in time by either Company A or Company B is 1 - 0.2907 = 0.7093, which can be approximated to 0.71.

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Answer:6528

Since there are 2 tires, both of which are $130,056 you would need to divide by 2 to get the price of the tires separately.

On average, there are 2,000 to 2,500 steps in a mile while walking.

Used the concept of measurement unit that states,

A measurement unit is a standard quality used to express a physical quantity. Also, it refers to the comparison between the unknown quantity with the known quantity.

Ask about the steps in a mile walking.

Since we know that;

There are approximately 2,000 to 2,500 steps in a mile while walking.

That means that it takes over 2,000 steps to walk one mile and 10,000 steps would be almost 5 miles.

However, this can vary depending on factors like stride length, walking speed, and individual differences.

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The IQR for the average of 35 coffee drinkers is approximately 1.4828 ounces.

To find the IQR (interquartile range) for the average of 35 coffee drinkers, we need to first find the standard error of the mean, which is the standard deviation divided by the square root of the sample size:

Standard error of the mean = 6.5 / sqrt(35) = 1.0967

Next, we can use the formula for the IQR:

IQR = Q3 - Q1

To find Q1 and Q3, we need to use the normal distribution table or a calculator that can perform normal distribution calculations. Using a standard normal distribution table, we can find the z-scores corresponding to the 25th and 75th percentiles, which are -0.6745 and 0.6745, respectively.

We can then use the formula:

Q1 = mean - z-score * standard error of the mean
Q3 = mean + z-score * standard error of the mean

Q1 = 17 - (-0.6745) * 1.0967 = 17.7499
Q3 = 17 + 0.6745 * 1.0967 = 17.9501

Therefore, the IQR for the average of 35 coffee drinkers is:

IQR = 17.9501 - 17.7499 = 0.2002 ounces (rounded to 4 decimal places).

Based on the information provided, we have a normal distribution with a mean of 17 ounces and a standard deviation of 6.5 ounces for daily coffee consumption. Since 35 people were surveyed, we can calculate the IQR (Interquartile Range) for the average of these 35 coffee drinkers.

First, we need to find the standard error (SE) of the sample mean, which is the standard deviation divided by the square root of the sample size:

SE = σ / √n = 6.5 / √35 ≈ 1.0987

Now, we need to find the z-scores corresponding to the first quartile (Q1) and the third quartile (Q3). For a normal distribution, Q1 corresponds to the 25th percentile (0.25) and Q3 corresponds to the 75th percentile (0.75). Using a z-table or calculator, we find:

z(Q1) ≈ -0.6745
z(Q3) ≈ 0.6745

Next, we find the corresponding ounce values for Q1 and Q3 by using the z-scores, the mean, and the standard error:

Q1 = μ + z(Q1) * SE ≈ 17 + (-0.6745) * 1.0987 ≈ 16.2586 ounces
Q3 = μ + z(Q3) * SE ≈ 17 + 0.6745 * 1.0987 ≈ 17.7414 ounces

Finally, we calculate the IQR by subtracting Q1 from Q3:

IQR = Q3 - Q1 ≈ 17.7414 - 16.2586 ≈ 1.4828 ounces

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a.) The mode for the chart is 24.

b.) The probability that the winning score will be 25 = 7/50

C.)The probability that the winning score will be 23 or more = 37/50.

The number of times the game is played = 50 times

The number of games that showed the score of 25= 7

The probability of winning a score of 25 = 7/50

The scores that are 23 and above; 10+14+7+4+2= 37

The probability of winning a score of 23 and above = 37/50

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Answer:

200g:300g

Step-by-step explanation:

2+3=5

500g/5=100g

100x2=200g

100x3=300g

Answer:

Step-by-step explanation:

 0 7 1

5 3 5 6

− 0    

 3 5  

− 3 5  

   0 6

 −   5

     1

The fact that z requires that you know the population standard deviation sigma is one reason why a t distribution rather than the normal curve is used to identify critical values when determining a level C confidence interval for a population mean.

C is the right response. The fact that z requires that you know the population standard deviation sigma is one reason why a t distribution rather than the normal curve is used to identify critical values when determining a level C confidence interval for a population mean.

Depending on whether we know the population standard deviation or not, we either use a z distribution or a t distribution when computing a confidence interval for a population mean. We use a z distribution when we know the group standard deviation. We employ a t distribution when it is unclear what the population standard deviation is.

The population standard deviation is not known, so we use the sample standard deviation to determine it.

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The graph of 2x + 3y = 1470 have a y intercept of 490

An equation is a expression that shows the relationship between numbers and variables.

The standard form of a linear equation is:

y = mx + b

Where m is the rate of change and b is the y intercept

Let x represent the number of sandwich and y represent the number of wraps.

The profit on every sandwich is $2, and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. Hence:

2x + 3y = 1470

The graph is attached

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To find the angle θ of the net force at time t = 6.87 s, we need to first find the x and y components of the net force, and then use the inverse tangent function to find the angle.

The x component of the net force is given by:

Fₙₑₜ,ₓ = m aₓ = (8.50 kg)(0.43 m/s² + 0.79 m/s³(6.87 s)) = 3.63 N

The y component of the net force is given by:

Fₙₑₜ,ᵧ = m aᵧ = (8.50 kg)(11.9 m/s² - 0.63 m/s³(6.87 s)) = 92.52 N

The magnitude of the net force is given by:

|Fₙₑₜ| = sqrt(Fₙₑₜ,ₓ² + Fₙₑₜ,ᵧ²) = sqrt(3.63² + 92.52²) = 92.67 N

The angle θ of the net force is given by:

θ = tan⁻¹(Fₙₑₜ,ᵧ / Fₙₑₜ,ₓ) = tan⁻¹(92.52 N / 3.63 N) = 86.5°Therefore, the angle θ of the net force at time t = 6.87 s is approximately 86.5° counter-clockwise from the +x-axis.

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