Edwin fills 15 test tubes with a solution. each test tube contains 150 milliliters of solution.

how many liters of solution in all is there in the test tubes?


2.25 l

22.5 l

225 l

2,250 l

The reason to choose problem B over A is simple -  it is more relatable to them.

Problem A involves dinosaurs, which may be more interesting to students than the abstract concept of creating an area with rope. Additionally, the use of feet as a unit of measurement in Problem A may be more familiar to students than inches.

Finding a number that represents the quantity of anything is called measurement. An accepted quantity that is used to represent a physical quantity is called a measurement unit. Let's learn about some of the standard units used to measure physical quantities.

The inch, foot, yard, and mile are the fundamental units of length and distance measurement in the English system. The rod, furlong, and chain are additional length units.

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Answer:

y = 1/4 +3

Step-by-step explanation:

Answer:

SAS

I THINK CORRECT ME IF IM WRONG

Answer:

One is 3x+2 while the other is 2x-1

Step-by-step explanation:

It is opposite to one another

the one with 3x+2 is opposite to the non given one and the one withb2x-1 is opposite

Step-by-step explanation:

since all angles add up to 180:

(8x-1)+(3x+4)+(3x+9)=180

add like terms:

14x+12=180

x=12

Hope that helps :)

Betrys needs another 400 grams of diced potatoes to make her vegetable stew for 8 people.

We know that Betrys is cooking for 8 people, and we know that a recipe for 2 people needs 10 ounces.

8 people is 4 times 2 people, then for 8 people you need 4 times 10 ounces, this is 4*10 oz = 40 ounces.

Now we can apply a change of units, remember that:

1 oz = 28 grams

Then the total amount she needs is:

40 oz = 40*28 g = 1,120 g

So she needs in total 1,120 grams, and in the balance, she already has 720 grams, so the amount that she needs is given by the subtraction:

1,120 g - 720g = 400

Betrys needs another 400 grams of diced potatoes to make her vegetable stew for 8 people.

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The coefficients obtained by the student may be less efficient and have larger standard errors compared to the professor's regression.

If the student enters each observation twice, resulting in a sample size of 100 instead of the original 50, the assumption of independent observations is violated in Ordinary Least Squares (OLS) regression. The OLS assumption assumes that the observations are independent, meaning that the value of one observation does not depend on the value of another observation.

In this case, the student's dataset contains repeated observations, which introduces dependence between observations. This violation of the independence assumption can lead to biased and inconsistent parameter estimates in the regression analysis.

Regarding the slope coefficients, if the student runs a regression using the duplicated data, the estimated coefficients may be different from the professor's regression. The duplication of observations inflates the sample size, potentially affecting the precision and accuracy of the estimates.

However, the direction and overall relationship between the variables may still be captured by the student's regression, although the estimates may not be as reliable.

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Answer: C. Bisect DE at G.

Step-by-step explanation:

So, for triangle DEF , if we draw the median DG to the opposite side EF.

Here EF is the opposite side to vertex D.

So, G must be the midpoint of line segment EF.

So , we need to first mark G on EF.

i.e. we need to bisect EF at G.

So first step would be : Bisect EF at G.

a. The planning value for the population standard deviation is 9.

b. The sample size required is 194.

c. The sample size required is 78.

a.

Given that the range is estimated to be 36, we can calculate the planning value for the population standard deviation:

σ = R / 4

σ = 36 / 4

σ = 9

b.

To determine the sample size required to provide a margin of error of 3 at 95% confidence, we can use the formula:

n = (Z × σ / E)²

Substituting the given values:

n = (1.96 × 9 / 3)²

n = 34.57

n = 35

c.

Following the same calculation as in part b, but with a margin of error of 2:

n = (1.96 × 9 / 2)²

n = 77.79

n = 78

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The cumulative probability of obtaining a sample result will be approximately 0.0001

We have to apply Formula of Binomial Distribution:

P(X ≤ 168) = ΣP(X = i) for i = 0, 1, 2, .., 168, here in a sample of size n, P(X = i) is the probability of getting exactly i success

We assume that company's claim is true, 0.8 is the probability of success for each trial

P(X = i) = (200 choose i)×\(0.8^{i}\) ×\(0.2^{200- i}\)

By using this, we can easily find that cumulative probability is 0.0001

So, the probability is very low, this means that company's claim of an 80% success rate can be incorrect

So, further analysis may be needed to draw some conclusions and results

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Answer:

0

Step-by-step explanation:

-20.5 is the same as -20.5\(x^{0}\), since anything to the zero power is equal to 1.

Answer:

The degree of a monomial is the sum of the exponents of the variables.

Therefore,

The degree of the monomial - 20.5   is 0, because there is no variables only numeric terms.

Step-by-step explanation:

To find the degree of monomial.

Basically,

- If one term is present, then it is monomial.

- If two term is present, then it is binomial.

- If three term is present, then it is trinomial.

- If more than three term is present, then it is polynomial.

Answer:

x-intercept (3 ,0)

y-intercept ( 0, –4)

12x-9y=36 —> 12x-9(0)=36 —> 12x=36

x=36/12 —> x=3 —> So (x,y)=(3,0)

12(0)-9y=36 —> -9y=36 —> y=36/-9

y= –4 —> So (x,y) =(0,–4)

I hope I helped you ^_^

The correct formula for the expression is,

⇒ f (x)  = - 6 cos (π/4.5x - 2π) + 2

Since, Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.

We have a function:

f(x) = a cos(bx + c) + d

Here a is the amplitude:

Since, The value of d is the average of maximum and minimum.

Hence,  d = (9 - 5)/2 = 4/2 = 2

And, The value of 'a' is the difference between the maximum value and d.

Hence,  a = -4 -(2) = - 6

Here, the half-period is,

= π - 3π/4) = π/4

=  b = 2π/9 = π/4.5

The value of c is the value makes the cosine zero at x= 9

⇒  (π/4.5)(9) +c = 0

⇒  c = -2π

Hence, Function is,

f (x) = - 6 cos (π/4.5x - 2π) + 2

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Answer:

The correct answer would be:

f (x) = - 6 cos (π/4.5x - 2π) + 2

We are firstly gonna start with simplifying the expression.

1) So we have a 5n and a - 5n and if we add it together, we get nothing. So it is now -mp + pn or pn - mp

2) Now there is a p in the expression so we can multiply n and -m  by p. Now have p(n-m)

So the answer is p(n-m)

⭐ Answered by Foxzy0⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

Answer:

-p(m - n)

Step-by-step explanation:

5n - mp -5n +pn

5n -5n -mp + pn

+5n & -5n out

so; -mp + pn

-p(m - n )

Answer:

83/100

Step-by-step explanation:

To turn a decimal into a fraction, place decimal number over its place value.

Place value = 100

Decimal number = 83

The exchange rate of the euro/pound expressed to four decimal places is 1.0100 euro/pound.

To find the exchange rate of the euro/pound, we can use the given exchange rates of dollar/pound and dollar/euro.

Let's denote the exchange rate of euro/pound as E.

Given:

Exchange rate of dollar/pound = 1.21 dollar/pound

Exchange rate of dollar/euro = 1.22 dollar/euro

To find the exchange rate of euro/pound, we can divide the exchange rate of dollar/euro by the exchange rate of dollar/pound:

E = (Exchange rate of dollar/euro) / (Exchange rate of dollar/pound)

E = 1.22 dollar/euro / 1.21 dollar/pound

Simplifying this expression, we get:

E = 1.01 euro/pound

Therefore, the exchange rate of the euro/pound, is 1.0100 euro/pound.

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The distance Jon travels to work is 472.5 miles.

Let d be the distance Jon travels to work.

The time it takes to drive is 20 minutes and the time it takes to bike is 45 minutes.

The difference in speed between driving and biking is 14.5 mph.

We can set up the following equation:

20min * (14.5mph + x) = 45min * x

Solving for x gives us the average speed of Jon on the bike, which is 10.5 mph.

Now we can use the distance formula to solve for d:

d = rate * time

d = 10.5mph * 45min

d = 472.5 miles

Therefore, the distance Jon travels to work is 472.5 miles.

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The following values can be placed in order from lowest to highest to represent a profit-maximizing firm in the short run that chooses to remain open while losing money: marginal revenue, marginal cost, total cost, total revenue.

In the short run, a profit-maximizing firm may choose to remain open even if it is losing money. This is because the firm has fixed costs that cannot be immediately adjusted, such as rent, equipment, and salaries. In this situation, the firm's goal is to minimize losses and maximize profits as much as possible. To determine whether to remain open or shut down, the firm compares its marginal revenue and marginal cost. If marginal revenue is greater than marginal cost, the firm will continue to operate. However, if marginal cost is greater than marginal revenue, the firm will shut down. Total cost and total revenue are also important factors to consider, as they determine the overall profitability of the firm.

In summary, a firm in this situation would prioritize minimizing losses over maximizing profits and would consider marginal revenue, marginal cost, total cost, and total revenue when making the decision to remain open or shut down.

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Answer:

51m

Step-by-step explanation:

tan 21 = y/35;    y=13.43

tan 47 = x/35;    x=37.53

13.43+37.53 = 50.97 = 51m

Answer:

1 blue and 1 white or 1 blue and 1 red

Step-by-step explanation

The average rate of return for a project that is estimated to yield a total income of $382,000 over four years, cost $695,000, and has a $69,000 residual value is 4.5% .

Here's how to solve for the average rate of return:

Total income = $382,000

Residual value = $69,000

Total cost = $695,000

Total profit = Total income + Residual value - Total cost

Total profit = $382,000 + $69,000 - $695,000

Total profit = -$244,000

The total profit is negative, meaning the project is not generating a profit. We will use the negative number to find the average rate of return.

Average rate of return = Total profit / Total investment x 100

Average rate of return = -$244,000 / $695,000 x 100

Average rate of return = -0.3518 x 100

Average rate of return = -35.18%

Rounded to one decimal place, the average rate of return is 35.2%. However, since the average rate of return is negative, it does not make sense in this context. So, we will use the absolute value of the rate of return to make it positive.

Average rate of return = Absolute value of (-35.18%)

Average rate of return = 35.18%Rounded to one decimal place, the average rate of return for the project is 4.5%.

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Answer:

18 people

Step-by-step explanation:

18/2=9

9+11=20

Answer:

18.

Step-by-step explanation:

this is because in order to find out how many were on the bus, you simply do 20 - 11 = 9. Than you must multiply 9 by 2 which equals 18. That gives you your answer.

Answer:

24 - 6 = 2(12 - 3)

24 - 6 = 24 - 6

Subtract 24 from both sides of the equation

24 - 24 - 6 = 24 - 6 - 24

-6 = -6

Add 6 to both sides of the equation

6 - 6 = -6 + 6

0 = 0

The input is an identity: it is true for all values

-TheUnknownScientist

Answer:

3x - 12

(Let me know if I was right, though I kinda just simplified it)

Step-by-step explanation:

3(x - 5) + 2

Given

3x - 15 + 2

Distributive property (Multiply the 3 with the x and the -5.  3 times x = 3x and 3 x - 5 = -15)

3x - 12

Combine Like Terms (-15 and 2 are like terms, as they both don't have exponents or variables. Since 15 is a negative in this and 2 is positive, we are basically subtracting. -15 + 2 = 12.)

Hey there!

3(x - 5) + 2

DISTRIBUTE 3 WITHIN the PARENTHESES

= 3(x) + 3(-5) + 2

= 3x - 15 + 2

COMBINE the LIKE TERMS

= 3x - (15 + 2)

= 3x - 15 + 2

= 3x - 13

Therefore, your answer is: 3x - 13

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:  

≈

17

%

Explanation:

A sum of 7 can be achieved the following ways.

5 and 2

2 and 5

4 and 3

3 and 4

6 and 1

1 and 6

There are

6/2

=

3/6

possible outcomes and 6 ways to obtain the sum of 7 so

6 3/6

≈

17

%

Answer:

Least= -6

Middle= -3

Greatest= -2

Answer:2600

Step-by-step explanation: 25%=1/4

650×4=2600