A certain plant grows 1 1/6 inches every week. How long will it take the plant to grow 6 1/6 inches

To find the cost of the dryer, set up equations based on the given information and solve for the dryer's cost, which results in the dryer being priced at $425.

To solve for the cost of the dryer in the given problem, we can create two equations based on the information provided. Let's denote the cost of the dryer as D and the cost of the washer as W. According to the problem, W = D + $67, and the combined cost of the washer and dryer is $917, so W + D = $917.

Substituting the first equation into the second, we have (D + $67) + D = $917. Simplifying this, we get 2D + $67 = $917. Subtracting $67 from both sides of the equation gives us 2D = $850. Finally, dividing both sides by 2, we find that D = $425.

Therefore, the cost of the dryer is $425.

Answer:

Exponential decay

Step-by-step explanation:

The function which has a constant halving time represents the exponential decay or negative growth curve type of function.

When the value of one variable of the function is decreased with increase in the number of other variable, then it is called the exponential decay function with constant exponential coefficient.'

It can be given as,

[tex]f(x)=ab^x[/tex]

Here, a is the exponential coefficient.

A function which has a constant halving time is,

[tex]A(t)=A_o\left(\dfrac{1}{2}\right)^{t/h}[/tex]

Here, Ao is the initial time, t is time and h is halving time. This is an exponential decay function.

The function which has a constant halving time represents the exponential decay or negative growth curve type of function.

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Lammer will make $150 after working for 10 hours .

Calculating Earnings Based on Hours Worked

To predict how much Lammer will make after working 10 hours, we first need to determine his hourly wage. From the information given, we know:

We can calculate his hourly wage as follows:

Hourly Wage = Total Earnings / Total Hours Worked

For both inputs, we observe:

This indicates that Lammer's hourly wage is consistent at $15 per hour.

Now, to predict how much he will make after working 10 hours:

Earnings for 10 Hours of Work = Hourly Wage x Number of Hours

Earnings for 10 Hours = $15 x 10 = $150

Therefore, Lammer will make $150 after working 10 hours.

Answer:

[tex]y=3x+2[/tex]

Step-by-step explanation:

We are given equation as

[tex](y+4)=3(x+2)[/tex]

Since, we have to write equation in slope-intercept form

so, we can use slope-intercept formula

[tex]y=mx+b[/tex]

where m is a slope

b is y-intercept

so, we can write our equation in this form

[tex](y+4)=3(x+2)[/tex]

Distribute 3

[tex]y+4=3\times x+3\times 2[/tex]

[tex]y+4=3x+6[/tex]

Subtract both sides by 4

[tex]y+4-4=3x+6-4[/tex]

[tex]y+4-4=3x+6-4[/tex]

[tex]y=3x+2[/tex]

So, slope-intercept form of equation is

[tex]y=3x+2[/tex]

Answer:

The mean of sample (21.6) is greater than population mean and the standard deviation of sample (8.4) is also greater than population standard deviation.

Both values, mean and std are greater than corresponding population values. This means, that our sample overestimates or is skewed to the right in the values of population. Also each specific value is farther apart from the mean so variation is much bigger in our sample than in our population.

Step-by-step explanation:

To calculate the mean, we estimate the avergage of the data as

Mean = Sum(data)/n

Where n is the number of observations of sample. We have;

(25 + 32 +  16 + 12 + 11 + 38 + 22 + 21  + 19 + 20)/10 = 21.6

The standard deviation is the square root of variance. Variance is sum of the deviation of each data point to the sample mean.

Variance = sum i= 1 to n (Xi-xmean)/(n-1)

Where n = 10 the # of observations and xi is each specific data point.

If you calculate it in Excel or or by hand you obtain:

Variance = sum i= 1 to n (Xi-21.6)/(10-1) = 8.4

Both values, mean and std are greater than corresponding population values. This means, that our sample overestimates or is skewed to the right in the values of population. Also each specific value is farther apart from the mean so variation is much bigger in our sample than in our population.

Answer:

The mean of the random samples (21.6) is greater than population´s mean (19.4) and the STD of the random samples (7.96) is greater than population´s STD (5.8)

Step-by-step explanation:

To calculate the mean of the random samples, we find the average value of the data set

[tex]Mean=\frac{(\sum_{i=0}^{n}{a_i})}{n}\\[/tex]

Where a is an element of the random example and n is the number of elements in the sample, as follows

Mean = (25+32+16+12+11+38+22+21+19+20)*(1/10) = 21.6

To calculate the STD (Standard Deviation) we need to know the variance, because

[tex]STD=\sqrt{var}[/tex]

The variance is determined as the sum of the deviation from one element of the data to the mean squared, all divided by n as below.

[tex]Var=(\sum_{i=1}^{n}{(a_{i}-Mean)^{2})/n[/tex]

If you calculate this by calculator or with a computer, you should get Var=63.44

And with that value, STD=7.96≈8

Therefore, by comparison, both Mean and STD of the random sample are greater than the population´s parameter

Answer:

9760-5220 is more than 4000.

Step-by-step explanation:

Consider the provided numbers.

We need to find 9760-5220 is more or less than 4000.

Subtract the numbers as shown.

 9760

-5220

4540

Now compare the number 4540 and 4000

By comparing it can be concluded that the number 4540 is greater than 4000.

Hence, 9760-5220 is more than 4000.

the answer (B) thank me later ;)

Final answer:

To determine the quantity of chocolate chips needed for a recipe that calls for one and one quarter times as much sugar as chocolate chips, set up a proportion using the given sugar amount. Multiply the sugar quantity (1⅓ cups) by the reciprocal of the ratio (4/5), which results in 1⅓ cups of chocolate chips needed.

Explanation:

To determine the quantity of chocolate chips needed when the recipe asks for one and one quarter times as much sugar as chocolate chips, we can use a simple proportion based on the quantity of sugar used. The recipe specifies that 1⅔ cups of sugar are used, which is equivalent to ⅓ cups of sugar when converted to an improper fraction.

The proportion would look like this: Chocolate Chips (C) is to 1 as 1⅓ cups of sugar is to 1⅔, which can be set up as a ratio: C/1 = (1⅓)/(1⅔). To solve for C, we multiply both sides by 1 to get rid of the denominator for C, giving us:

C = (1⅓)/(1⅔)

Now, let's solve the equation:

Convert 1⅓ to an improper fraction: 5/3.

Convert 1⅔ to an improper fraction: 5/4.

Divide 5/3 by 5/4 to find the quantity of chocolate chips: (5/3) × (4/5) = 20/15 = 4/3, which simplifies to 1⅓ cups.

Therefore, you would need 1⅓ cups of chocolate chips for the recipe.

Answer: D.)The slope is Negative three-halves and contains the point (0, −2).

Step-by-step explanation:

i got it correct obviously oncrip

Answer:

standard deviation=4.47

Step-by-step explanation:

We have to find the standard deviation of the data set:

13   17    9  21

Now we calculate the mean of the data .

We know that mean is the average of the data values and is calculated as:

[tex]Mean=\dfrac{13+17+9+21}{4}\\ \\Mean=\dfrac{60}{4}\\\\Mean=15[/tex]

Now we find the difference of each data point from the mean as:

Deviation:

13-15=-2

17-15=2

9-15=-6

21-15=6

Now we have to square the above deviations we obtain:

4   4   36   36

now we calculate the mean of the above sets:

[tex]variance=\dfrac{4+4+36+36}{4}\\ \\Variance=\dfrac{80}{4}\\\\Variance=20[/tex]

now standard deviation is the positive square root of variance

so, standard deviation=√(20)=4.47

Final answer:

To find the standard deviation for Omar's work hours, we first calculate the mean of the data, then compute the squared differences from the mean, sum these, divide by the sample size minus one, and take the square root of this result, which is approximately 5.16 hours.

Explanation:

To calculate the standard deviation for Omar's recorded work hours: 13, 17, 9, 21, we follow these steps:

First find the mean (average) of the sample. Mean = (13 + 17 + 9 + 21) / 4 = 60 / 4 = 15 hours.

Next, subtract the mean from each data point and square the result:[tex](13-15)^2[/tex] = 4,[tex](17-15)^2[/tex] = 4, [tex](9-15)^2[/tex]= 36,[tex](21-15)^2[/tex] = 36.

Now, find the sum of these squared differences: 4 + 4 + 36 + 36 = 80.

Since this is a sample (not the full population), we divide by the sample size minus 1, which is 3: 80 / 3 ≈ 26.67.

Finally, take the square root of this quotient to find the standard deviation: √26.67 ≈ 5.16 hours.

Therefore, the standard deviation for the data is roughly 5.16 hours.

The value of m is 36

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" symbol and terms on both sides must always be present when writing an equation. Equal treatment should be given to each party. Multiple terms, operators, and variables are not required on each side of an equation.

Given:

1/3m+3−5/6m=−15

Subtract 3 from both sides

1/3m +3 -5m/6 -3= -15-3

Simplify

1/3 m -5m /6 = -18

Now, multiply the LCM

-3m = -108

Divide both side by (-3)

-3m/(-3)= -108/ (-3)

m= 36.

Hence, the value of m is 36.

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The range at θ = 10⁰ is 155.4 meters.

What is a projectile?

A projectile is an object thrown or projected into the air, subject to gravity, following a curved trajectory.

Given that

v₀ = 500m/s

g = 9.8 m/s²

θ = 10⁰

Substitute into the function

f(θ)=v₀²/g sin πθ/90=25510 sin πθ/90 meters.

f(θ)= 25510sin πθ/90

= 25510sin10π/90

= 25510sinπ/9

= 25510sin(3.142/9)

= 25510sin(0.349)

= 25510 * 0.00609

= 155.4 m

The range at θ = 10⁰ is 155.4 meters.

Complete question

The greater the initial velocity of a projectile, the greater the range, with the maximum range achieved at a 45° angle in the absence of air resistance.

The initial velocity of a projectile has a significant impact on its range. Specifically, the greater the initial speed, ℓ0, the greater the range. The formula for range R on level ground, neglecting air resistance, is given by R = (v0²/g) sin(2θ), where θ is the launch angle, v0 is the initial velocity, and g is the acceleration due to gravity. The maximum range is reached when the launch angle is 45°. With air resistance, the optimal angle decreases to roughly 38°. Additionally, for every angle other than the optimal, there are two different angles that yield the same range, and their sum totals 90°.

Final answer:

To find n(A), we count the elements in the set A={0,1,2,3,...,2000} which form an arithmetic sequence. By applying the formula for the number of terms in an arithmetic sequence, we find that n(A) = 2001.

Explanation:

To find n(A), which represents the number of elements in set A, we simply count the elements listed in the given set A={0,1,2,3,...,2000}. These elements form an arithmetic sequence starting from 0 and ending at 2000 with a common difference of 1 between each consecutive number.

The formula for the number of terms n in an arithmetic sequence is given by:

n = (last term - first term) / (common difference) + 1

Applying the formula to our set A:

n = (2000 - 0) / 1 + 1 = 2000 + 1 = 2001

Therefore, n(A) = 2001.