pleaseeee helpppp :(((((

This problem is about the rule of three.

The given ratio is 20 minutes for 3 tasks done. We need to find the number of taks done after 8 hours.

First, we know that 1 hour is 60 minutes, so the total number of minutes is

Now, the rule of three is about the total number of tasks done after 480 minutes, if three tasks take 20 minutes only.

Answer:

  72 square units

Step-by-step explanation:

The figure shown has a uniform horizontal cross section, so is equivalent to a rectangle with length 12 and height 6. Its area is given by the rectangle formula:

  A = LW

  A = (12)(6) = 72 . . . . square units

__

Additional comment

Essentially, the semicircle removed from the left side is tacked onto the right side. The rectangle area is unchanged by that.

Answer:

PRACTICE.....ONCE THERE WAS A TIME WHEN I'D USED TO FAIL IN MATHS.....BUT NOW I ALWAYS GET 90+ IN MATHS!!!!!

A variable is any property, number, or quantity that can be measured or counted. Variables can also be referenced as data items.

Inference: Inference uses selected samples from a population to estimate the properties of unknown people.

A record (or record) is a collection of data. For tabular data, a record corresponds to one or more database tables, each table column represents a specific variable, and each row corresponds to a particular record in that data set.

Therefore:

All the data collected in particular is referred to as Data Set.

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Step-by-step explanation:

One cable company charges $50 per month for their basic plan, plus $75 installation. A second company charges $55 per month, but offers free installation. For what number of months is the first plan cheaper than the second plan?

50m + 75 < 55m

subtract 50m from both sides:

50m + 75 -50m < 55m - 50m

75 < 5m

divide both sides by 5:

75/5 < 5m/5

15 < m

or m > 15

so:

The first plan cheaper than the second plan after 16+ months

Answer:

A

Step-by-step explanation:

it's not undefined, positive, or zero, with leaves negative.

its negative, since the slope goes downward.

To find the common difference for the arithmetic sequence formed by the series sums s2, s5, and s7, let's analyze the given information.

The sum of the second term (s2), fifth term (s5), and seventh term (s7) themselves form an arithmetic sequence.

Let's denote the second term as a + 2d, the fifth term as a + 5d, and the seventh term as a + 7d, where 'a' is the first term and 'd' is the common difference.

Using the arithmetic sequence formula for the sum of terms, we have:

s2 = (2/2) * (2a + (2-1)d) = 2a + d

s5 = (5/2) * (2a + (5-1)d) = 5a + 6d

s7 = (7/2) * (2a + (7-1)d) = 7a + 12d

Since the sums s2, s5, and s7 themselves form an arithmetic sequence, we can express their differences:

s5 - s2 = (5a + 6d) - (2a + d) = 3a + 5d

s7 - s5 = (7a + 12d) - (5a + 6d) = 2a + 6d

Now, equating the differences, we have:

3a + 5d = 2a + 6d

Simplifying the equation, we find:

a = d

Therefore, the common difference for the arithmetic sequence formed by the series sums s2, s5, and s7 is 'd'.

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Answer:

452.39

Step-by-step explanation:

The question is asking for the area of the pool, so use the circle area formula, which is A=\(\pi r^{2}\). In the formula, A is the area and r is the radius. The question gives us the diameter, so divide that by 2 to get the radius. Therefore the equation is A=\(\pi 12^{2}\), then solve to get 452.39.

Answer: 12 tablespoons

Step-by-step explanation: 3/4 of a cup is equal to 6 fluid ounces or 12 tablespoons.

The number 12 has two significant-figures, both digits are considered significant

Significant figures, also known as significant digits, are the digits in a number that contribute to its precision or accuracy.

In the case of the number 12, both digits, "1" and "2," are non-zero digits. Non-zero digits are always considered significant.

However, there are no decimal points or trailing zeros in this number, so there is no additional information regarding the precision of the measurement.

Leading zeros before the first non-zero digit are not considered significant. For example, in the number 0.12, the leading zero is not significant, and the two significant figures are "1" and "2."

In the case of the number 12, there are no leading or trailing zeros, and both digits are non-zero. Therefore, both digits are considered significant, resulting in a total of two significant figures.

It is important to recognize the number of significant figures in a value as it affects the accuracy of calculations and the representation of the precision in scientific measurements.

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Answer:

c(0) = 24*0 = 0  

c(8) = 24*8 = 192  

Your range is [0,192]

Step-by-step explanation:

Answer:

You have 8 cups of flour it takes 1 cup of flour to make 24 cookies the function c(f)=24f

c represents the number of cookies

f represents the cups of flour

You have 8 cups of  flour, we can use only 0 to 8 cups of flour.

so domain f is 0 to 8 cups [0,8]

Now we find the range

1 cup of flour to make 24 cookies

So 8 cups of flour = 24* 8 = 192 cookies

using 8 cups you can make 192 cookies

So number of cookies is from 0 to 192

Range is [0,192

Step-by-step explanation:

Answer:

348

Step-by-step explanation:

in every 87 calories there is 3/4(1.44)cup

? there is in 3 cup

87 × 3=261 ×4/3 =348

Answer:

Associative Property of Addition

Step-by-step explanation:

According to the Associative Property of Addition, when three real numbers are added, it makes no difference which two are added first.

(a + b) + c = a + (b + c)

Therefore, 8 + (2 + 6) = (8 + 2) + 6 is an example of the Associative Property of Addition.

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Option (D), the last option is the correct statement, If heights in inches of 200 graduating seniors were summarized in the frequency table;

The median height is greater than or equal to 60 inches but less than 66 inches.

The median is the number value that separates the lower and upper values to halves. The median height is determined by arranging all the given heights in order either from the smallest to highest or from highest to smallest without skipping any measurement of the heights.

After arranging all the heights in order, the median height is usually at the middle.

The reason as to why the median height is greater than or equal to 60 inches but less than 66 inches is because the middle height should not be same as the largest height of 66 inches. It is possible to have multiple 60 inch heights from the 200 seniors. It is also possible to have multiple 66 inch of heights from the 200 seniors.

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We can say that the calculated correlation coefficient to be 0, cannot allow Randolph to conclude that there is no relationship between bacteria growth and time as if the correlation coefficient is 0, there is not a linear relationship, but there could be another type of relationship, making option A the right choice.

A correlation coefficient provides a numerical definition of correlation. This variable accepts values in the range of -1 to 1. Perfect negative linear correlation, or a straight line flowing downhill, has a coefficient of -1. On the other hand, a +1 coefficient indicates a complete positive linear association. No linear correlation exists when the correlation is zero.

Only linear associations can be found using the correlation coefficient. It doesn't always follow that there isn't a relationship there just because the correlation coefficient is close to 0.

Thus, we can say that the calculated correlation coefficient to be 0, cannot allow Randolph to conclude that there is no relationship between bacteria growth and time as if the correlation coefficient is 0, there is not a linear relationship, but there could be another type of relationship, making option A the right choice.

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The provided question is incomplete. The complete question is:

"Randolph calculated the correlation coefficient to be 0 when counting bacteria growth over a period of 14 days. He concluded that there is no relationship between bacteria growth and time.

Is Randolph correct? Explain your reasoning.

A) Randolph's conclusion is not correct. If the correlation coefficient is 0, there is not a linear relationship, but there could be another type of relationship.

B) Randolph's conclusion is correct. If the correlation coefficient is 0, there is a linear relationship.

C) Randolph's conclusion is not correct. If the correlation coefficient is less than 1, there is not a linear relationship, but there could be another type of relationship.

D) Randolph's conclusion is correct. If the correlation coefficient is greater than −1, there is not a linear relationship, but there could be another type of relationship.

E) Randolph's conclusion is correct. If the correlation coefficient is less than 1, there is not a linear relationship, but there could be another type of relationship."

Answer:

Step-by-step explanation:

The solution to the linear system is the point of intersection of the lines.

This point is

T(110) is used to calculate the value of T when w = 110.

A linear equation is in the form:

y = mx + b

where y, x are variables, m is the rate of change (slope) and b is the y intercept.

Given the linear equation:

T(w) = 530 - w

Hence T(110) is used to calculate the value of T when w = 110.

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Divide first two then divide the last then multi by 3

Step-by-step explanation:

The answers, rounded to the appropriate number of significant figures, are as follows:

(a) 1.088 ×\(10^2\)

(b) 2.132

(c) 1.3331 ×\(10^1\) and

(d) 1.05.

Let's calculate the answers to the given operations using the appropriate number of significant figures.

(a) 8.370×1.3×10

To perform this multiplication, we multiply the decimal numbers and add the exponents of 10:

8.370 × 1.3 × 10 = 10.881 × 10 = 1.0881 × \(10^2\)

Since the original numbers have four significant figures, we round the final answer to four significant figures:

1.088 × \(10^2\)

(b) 4.265/2.0

For division, we divide the decimal numbers:

4.265 ÷ 2.0 = 2.1325

Since both numbers have four significant figures, the answer should be rounded to four significant figures:

2.132

(c) (1.2588×\(10^3\))×(1.06×\(10^-^2\))

To multiply these numbers, we multiply the decimal numbers and add the exponents:

(1.2588 × \(10^3\)) × (1.06 × \(10^-^2\)) = 1.333128 × \(10^1\)

Since the original numbers have five significant figures, we round the final answer to five significant figures:

1.3331 × \(10^1\)

(d) \((1.11)^(^1^/^2^)\)

To calculate the square root, we raise the number to the power of 1/2:

\((1.11)^(^1^/^2^)\)= 1.0524

Since the original number has three significant figures, the answer should be rounded to three significant figures:

1.05

It's important to note that the significant figures in a result are determined by the original data and the operations performed. The final answers provided above reflect the appropriate number of significant figures based on the given information and the rules for significant figures.

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Answer:

(n-1) / 2

Step-by-step explanation:

We have that the sum has the form of:

Sn = n / 2 [2 * a + (n-1) * d]

we compute the terms of a and d

a = 1 - 1 / n

a = (n - 1) / n

, that is, the first term, in the case d is the subtraction between the second and the first term, thus:

d = 1 - 2 / n - (1 - 1 / n)

d = 1 - 2 / n - 1 + 1 / n

d = - 1 / n

now if replacing these values:

Sn = n / 2 * [2 * (n - 1) / n + (n-1) * (- 1 / n)

Sn = n / 2 * [2 * (n-1) - (n-1)] / n

Sn = 1/2 * (n-1)

Therefore, the value of that sum is (n-1) / 2

If the diameter of the pie is 12 inches, then the area of pie is 113.04 in² and 113 in² after rounding to the nearest tenth.

The formula for the area of a circle is: A = π × r²

where A is the area, pi is a mathematical constant approximately equal to 3.14, and r is the radius of the circle.

In this case, we are given the diameter of the pie, which is 12 inches. To find the radius, we need to divide the diameter by 2:

r = 12 / 2

= 6 inches

Now we can use the formula for the area of a circle to find the area of the pie:

A = π × r²

A = 3.14 × 6²

A = 113.04 square inches

Rounding to the nearest tenth gives:

A ≈ 113.0 square inches

Therefore, the area of the pie is approximately 113.0 square inches.

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Answer:

HIHI! The correct answer you're looking for is 11pi/6 =) & I took the test too

Step-by-step explanation:

Answer:

w<-6

Step-by-step explanation: