PLEASE HELP THIS IS DUE TMRW!!


9. On January 18, 2002, the temperature in Charlottetown, Prince
Edward Island, was – 21°C; in Sydney, Nova Scotia, it was -23°C;
in Point Lepreau, New Brunswick, it was -22°C. Which place was
the warmest Coldest? How do you know?

The total principal and interest payment that Nelson will have to pay after 2 months is $4665.50.

To calculate the total principal and interest payment, we need to determine the interest amount and add it to the principal.

First, let's find the interest amount:

Interest = Principal x Interest Rate x Time

Given:

Principal = $4650

Interest Rate = 2% per year

Time = 2 months

Since the interest rate is given on an annual basis, we need to convert the time from months to years. There are 12 months in a year, so 2 months is equivalent to 2/12 = 1/6 years.

Interest = $4650 x 0.02 x (1/6) = $15.50

Now, we can calculate the total principal and interest payment:

Total Payment = Principal + Interest

Total Payment = $4650 + $15.50 = $4665.50

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Answer:

A

the anwser is a im just typing this becsuse it told me my anwser was too short

Answer:

A

Step-by-step explanation:

We know that this is the same as substituting a for x and multiplying the entire expression by -1.

\(f(a) = \frac{2a}{a - 1} \)

\( - f(a) = \frac{ - 2a}{a + 1} \)

Answer:

\(Pr = 7\%\)

Step-by-step explanation:

Given

See attachment for graph

Required

Find P(Junior|Male)

To do this, we first calculate the total students.

\(Total = 4 + 6 + 2 + 2 + 3 + 4 + 6 + 3\)

\(Total = 30\)

Next, select the value in the cell that intersects Male and Junior

\(Male\ and\ Junior = 2\)

Hence, the probability is

\(Pr = \frac{Male\ and\ Junior}{Total}\)

\(Pr = \frac{2}{30}\)

\(Pr = 0.067\)

Express as percentage

\(Pr = 0.067*100\%\)

\(Pr = 6.7\%\)

Approximate

\(Pr = 7\%\)

Answer:

14%

Step-by-step explanation:

2(junior males) out of 14 (the total of males) is 14.29%, which is rounded to a whole percent of 14%. Hope this helps!

p.s. (I was on the same problem on acellus and figured it out. It took forever though)

Answer:

A'B'C'D' is obtained by rotating ABCD counterclockwise by 90 degrees about the origin and then reflecting it about the x-axis.

Step-by-step explanation:

ABCD: A(-4,-3), B(-3,-1), C(-2,-3), and D(-3,-4).

If we rotate ABCD counterclockwise by 90 degrees, we obtain the translation

\(R$otation of 90\º: (x,y)\rightarrow (-y,x)\)

This gives:

A''(3,-4), B''(1,-3), C''(3,-2), and D''(4,-3).

Next, we reflect A''B''C''D'' across the x-axis. (Note that the x-coordinate remains the same, but the y-coordinate is transformed into its opposite.)

\(R$eflection accross the x-axis: (x,y)\rightarrow (x,-y)\)

This then gives us the coordinates

A'B'C'D': A'(3, 4), B'(1, 3), C'(3, 2), and D'(4, 3)

Answer:

A'B'C'D' is obtained by rotating ABCD counterclockwise by 90 degrees about the origin and then reflecting it about the x-axis.

Step-by-step explanation:

ABCD: A(-4,-3), B(-3,-1), C(-2,-3), and D(-3,-4).

If we rotate ABCD counterclockwise by 90 degrees, we obtain the translation

This gives:

A''(3,-4), B''(1,-3), C''(3,-2), and D''(4,-3).

Next, we reflect A''B''C''D'' across the x-axis. (Note that the x-coordinate remains the same, but the y-coordinate is transformed into its opposite.)

This then gives us the coordinates

A'B'C'D': A'(3, 4), B'(1, 3), C'(3, 2), and D'(4, 3)

We can be 99% confident that the true mean healing rate of newts falls within the interval of 22.919 to 30.415 micrometers per hour.

Sample Mean: = (29 + 27 + 34 + 40 + 22 + 28 + 14 + 35 + 26 + 35 + 12 + 30 + 23 + 18 + 11 + 22 + 23 + 33) / 18

= 480 / 18

≈ 26.667

Sample Standard Deviation (s):

= ✓((Σ(29 - 26.667)² + (27 - 26.667)² + ... + (33 - 26.667)²) / (18 - 1))

≈ ✓(319.778 / 17)

≈ ✓(18.81)

≈ 4.336

Confidence level = 99%

Sample Size (n) = 18

Sample Mean = 26.667

Sample Standard Deviation (s) = 4.336

Degrees of Freedom (df) = n - 1 = 18 - 1 = 17

Using a t-table or statistical software, we find that the critical value for a 99% confidence level with 17 degrees of freedom is approximately 2.898.

Margin of Error (E) = 2.898 * (4.336 / ✓18))

≈ 3.748

Confidence Interval = (26.667 - 3.748, 26.667 + 3.748)

= (22.919, 30.415)

We can be 99% confident that the true mean healing rate of newts falls within the interval of 22.919 to 30.415 micrometers per hour. This means that if we were to repeat the study multiple times and construct confidence intervals, approximately 99% of those intervals would contain the true mean healing rate of the population.

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The given system of equations is

Consider equation (1)

Subtracting 4x from both sides, we get

Multiply both sides by -1, we get

Substituting y=4x-7 in equation (2), we get

Answer:

Part a) The graph in the attached figure

Part b) The units rate of change is 9

Step-by-step explanation:

we know that

A relationship between two variables, t, and d, represent a proportional variation if it can be expressed in the form  or

step 1

Find the constant of proportionality k

For

substitute

the linear equation is equal to

using a graphing tool

see the attached figure

step 2

Find the unit rate

we know that

In a proportional relationship the constant of proportionality k is equal to the unit rate of change or slope m of the line, because the line passes through the origin

so

The units rate of change is 9

That means------> A change of 1 unit in t correspond to a change of 9 units in d

see the attached figure to better understand the problem

Answer:

Have a nice day! Answer is above good luck:)

The ratio 81:108 can be simplified to 9:13. To find the simplest form of the ratio, you can divide both numbers by the greatest common factor. The greatest common factor of 81 and 108 is 9, so you can divide both numbers by 9 to get the simplified ratio of 9:13.

Answer:

B = 34.2°

C = 105.8°

c = 12.0 units

Step-by-step Explanation:

Given:

A = 40°

a = 8

b = 7

Required:

Find B, C, and c.

SOLUTION:

Using the Law of Sines, find <B:

\( \frac{sin(A)}{a} = \frac{sin(B)}{b} \)

\( \frac{sin(40)}{8} = \frac{sin(B)}{7} \)

Multiply both sides by 7

\( \frac{sin(40)}{8}*7 = \frac{sin(B)}{7}*7 \)

\( \frac{sin(40)*7}{8} = sin(B) \)

\( 0.5624 = sin(B) \)

\( B = sin^{-1}(0.5624) \)

\( B = 34.2 \) (to nearest tenth).

Find <C:

C = 180 - (34.2+40°) (sum of angles in a triangle)

C = 180 - 74.2 = 105.8°

Using the Law of Sines, find c.

\( \frac{c}{sin(C)} = \frac{b}{sin(B)} \)

\(\frac{c}{sin(105.8)} = \frac{7}{sin(34.2)}\)

Multiply both sides by sin(105.8)

\(\frac{c}{sin(105.8)}*sin(105.8) = \frac{7}{sin(34.2)}*sin(105.8)\)

\( c = \frac{7*sin(105.8)}{sin(34.2)} \)

\( c = 12.0 \)

Answer:

When a 3D figure is cut to create a cross-section parallel to the base, the direction of the perpendicular is vertical. This means that the cross-section will be perpendicular to the base and will have a vertical orientation.

Answer:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

Step-by-step explanation:

The LCM of 13 AND 17 is 221

The LCM of 40 AND 60 is 120

lcm (40; 60) = 120 = 23 × 3 × 5

Answer:

9 OR 1

Step-by-step explanation:

Let the number be x

x² - 10x = -9

x² - 10x + 9=0

a=1

b=-10

c=9

Solve using the quadratic formula

x =9 or 1

When there are between 20 and 50 flags and they can be shared equally among 2 tents or 4 tents or 5 tents. The number of flags will be 40.

From the information, there are between 20 and 50 flags and they can be shared equally among 2 tents or 4 tents or 5 tents.

It should be noted that this simply means that we should find the highest multiple for 2, 4, and 5 between 20 and 50. This is 40.

Therefore, the number of flags is 40.

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Answer:

u = 5

Step-by-step explanation:

\(\frac{u + 7}{15} = \frac{4}{5}\)

We want to solve for u. This means we need to isolate u on one side of the equation.

To do this, first multiply both sides by 15. This will cancel out the denominator on the left side.

\(u + 7 = (\frac{4}{5})(\frac{15}{1})\)

Multiply the numerators and denominators separately.

4 • 15 = 60

5 • 1 = 5

\(u + 7 = \frac{60}{5}\)

Simplify the fraction.

60 ÷ 5 = 12

u + 7 = 12

Subtract 7 from both sides.

u = 5

Check your work by plugging u = 5 back into the original equation.

\(\frac{5 + 7}{15} = \frac{4}{5}\)

\(\frac{12}{15} = \frac{4}{5}\)

\(0.8 = 0.8\)

Your answer is correct.

Hope this helps!

Answer:

5 is your answer for u.

Step-by-step explanation:

Note the equal sign, what you do to one side of the equation, you do to the other.

First, multiply 15 and 5 to both sides of the equation (to get rid of the denominators):

\(15 * 5 * (\frac{u + 7}{15}) = (\frac{4}{5}) * 5 * 15\\5 * (u + 7) = 4 * 15\)

First, distribute the 5 to all terms within the parenthesis. Also, simplify the right side by multiplying:

\(5 * (u + 7) = 4 * 15\\(5 * u) + (5 * 7) = (4 * 15)\\5u + 35 = 60\)

Next, isolate the variable, u. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

~

First, subtract 35 from both sides, and then divide by 5 to isolate the variable, u:

\(5u + 35 = 60\\5u + 35 (-35) = 60 (-35)\\5u = 60 - 35\\5u = 25\\\\\\\frac{5u}{5} = \frac{25}{5} \\u = \frac{25}{5} = 5\\u = 5\)

Formula for the concentration after n steps is \(C(n) = C(0) * (0.86)^n\) and

after 11 steps, the mixture contains less than 9% vinegar.

What is concentration?

Concentration in science refers to the amount of a particular substance (the solute) that is dissolved in a given amount of a solution. It is typically expressed in units of moles per liter (M or mol/L) or as a percentage or fraction of the total solution.

a. Let C(n) be the concentration of vinegar after n steps. At each step, we remove 0.14 L of the mixture, which contains C(n) liters of vinegar. So we are left with (1 - C(n)) liters of water. We then add back 0.14 L of water, giving us a total volume of 1 liter. Therefore, the concentration after one step is:

\(C(1) = C(0) * \frac{1 - 0.14}{1}\)

where C(0) is the initial concentration of vinegar, which is 1 liter per liter or 100%. After two steps, we repeat the process:

C(2) = C(1) * \(\frac{1 - 0.14}{1}\)

Substituting the formula for C(1), we get:

C(2) = C(0) * \((\frac{1 - 0.14}{1}) * (\frac{1 - 0.14}{1})\)

or, more generally:

\(C(n) = C(0) * (0.86)^n\)

b. We want to find the smallest integer n such that C(n) < 0.09 or 9%. Substituting the formula from part (a), we get:

\(C(0) * (0.86)^n < 0.09\)

Dividing both sides by C(0), we get:

\((0.86)^n < 0.09\)

Taking the natural logarithm of both sides, we get:

n * ln(0.86) < ln(0.09)

Dividing both sides by ln(0.86), we get:

n > ln(0.09) / ln(0.86)

Using a calculator, we get:

n > 10.7

Since n must be an integer, the smallest possible value of n is 11. Therefore, after 11 steps, the mixture contains less than 9% vinegar.

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Answer:

89.4

Step-by-step explanation:

Okay well if  149=100% and there is a 40% we just have to find 60% and to do that we just multiply 149 by 0.60 to get 89.4

149*0.60=89.6

a) The coefficient of variation (CV) for Brand A, is equals to the 2.8%.

b) The coefficient of variation (CV) for Brand B, is equals to the 2.0%.

c) Brand B, is more consistently produces tablets as advertised.

We have comparing data of consumer groups of vitamin C tablets of two brands. Tablets for each group were selected randomly. Data from above table, For brand A :

Tablets contains the quantity of vitamin C = 500 mg

Sample mean = 250

Standard deviation = 7

For brand B :

Tablets contains the quantity of vitamin C = 250 mg

Sample mean = 500

Standard deviations = 10

Cofficient of variation, CV is statistical parameter and it is the ratio of the standard deviation to the mean. Formula is, Coefficient of Variation (CV)

= (Standard Deviation/Mean) × 100.

a) To calculate the coefficient of variation (CV) for Brand A = (7/250 )×100

= 2.8%

b) To calculate the coefficient of variation (CV) for Brand B = (10/500 )×100

= 2.0%

c) As we see, Cofficient of variation of advertising for brand B is less than brand A. So, Brand B more consistently produces tablets as advertised.

Hence, required brand is brand B.

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Complete question:

consumer interest group is comparing two brands of vitamin C. One group advertises that its tablets contain 500 mg of vitamin C. The other advertises that its tablets contain 250 mg of vitamin C. Tablets for each group were selected randomly. The table above shows the results.Vitamin C Content (mg) Brand A (500 mg) x = 250s = 500Brand B (250 mg) x = 500s = 10

a) Calculate the coefficient of variation (CV) for Brand A (1point)

b) Calculate the coefficient of variation (CV) for Brand B (1 point)

c) Which brand more consistently produces tablets as advertised? (2 points) d) Explain your answer to c) above. (1 point)

Answer:

B

Step-by-step explanation:

y+x=9

y=slope

y=9-x  

Answer:

.92

Step-by-step explanation:

Answer:

0.92

Step-by-step explanation:

Divide the price of certain number of units of an item by the number of units to find the unit price of that item.

Answer: 5 inspections in 4 hours, because if its 8 hours it would be 10 inspections

Step-by-step explanation:

Answer:

1.25

Step-by-step explanation:

10 ÷ 8 = 1.25

Answer:

(B). \(A_{y}\) = \(\left[\begin{array}{cc}12&7\\17&-51\end{array}\right]\)

Step-by-step explanation:

12x - 13y = 7

17x - 22y = - 51

A = \(\left[\begin{array}{cc}12&-13\\17&-22\end{array}\right]\)

\(A_{x}\) = \(\left[\begin{array}{cc}7&-13\\-51&-22\end{array}\right]\)

\(A_{y}\) = \(\left[\begin{array}{cc}12&7\\17&-51\end{array}\right]\)

Answer:

y=0.5x+8

Step-by-step explanation:

Use the formula for the equation of a line y=mx+c where m is the slope and c is a number.

To find the slope, take two points (x₁,y₁) (x₂,y₂) and put them into the slope equation m=(y₂-y₁)/(x₂-x₁):

We can take two points from the graph: (2,9) (4,10)

m=(y₂-y₁)/(x₂-x₁)

m=(10-9)/(4-2)

m=1/2 or 0.5

Now sub this value in for m and our formula looks like this:

y=0.5x+c

To find the value of c, sub in one of the points, eg. (4,10)

y=0.5x+c

10=0.5(4)+c

10=2+c

c=8

So now that we now m and c, our equation is complete :D

y=0.5x+8

Answer:

Step-by-step explanation:

The slope-intercept equation for a line is y = mx+b, where m is the slope and b is the y-intercept.

Refer to the picture. You can see that the line crosses the y-axis at (0,8), which means the y-intercept is 8.

The graph shows the path of a hiker walking up the hill. When he goes from one blue dot to the next, he has moved 2 units to the right and 1 unit up. The slope of the hill is ½.

Slope-intercept equation for line of slope ½ and y-intercept 8:

y = ½x+8

There is nothing to simplify.

Answer:

c is the answer why cause I did it

The mean of the binomial distribution is 4.74

The variance of the binomial distribution is 1

The standard deviation of the binomial distribution is 1.0

a)

Given,

To determine the mean

n = 6

p = 79%

p = 0.79

Now consider,

Mean = n*p

substitute given values

= 6*0.79

= 4.74

Mean = 4.7

b)

To determine the variance

Variance = n*p*(1 - p)

substitute the known values

= 6*0.79*(1 - 0.79)

= 0.9954

Variance = 1

c)

To determine the standard deviation

We know,

Standard deviation = sqrt(Variance)

substitute the known value

Standard deviation = sqrt(1)

Standard deviation = 1.0

d)

Here by observing we can say that most samples of 6 adults would differ from the mean by no more than 1.0

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The inequality expression that corresponds to the solution of the inequality graph is x² + 3x - 3 < 0.

option B.

The inequality expression that corresponds to the solution of the inequality graph is determined by simplifying the equations as follows;

The solution of the graph,

x > -4 and x < 1

The first equation with "≥" is ruled out because the graph doesn't have a thick dot.

Let's simplify the second expression;

x² + 3x - 3 < 0

solve using quadratic formula;

x > -3.79 or x < 0.79

The third expression is ruled out since its solution will be complex.

For the last expression;

x² + 3x - 3 > 0

x < -3.79 or x > 0.79

Thus, the correct inequality expression is x² + 3x - 3 < 0.

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1) The Single Equivalent Discount Rate is 0.143296.

2) The trade discount is $28.52.

3) The net price is $170.48.

A chain discount refers to a series of discounts allowed from the list price of a good.

An example of a chain discount is 8/4/3.  Based on the series of discounts, a single equivalent discount rate can be computed as below.

The net price is the difference between the list price and the trade discounts granted.

Item            List     Chain     Net Price       Single        Trade         Net Price

                 Price Discount  Equivalent  Equivalent  Discounts

                                                    Discount rate

Samsung  $199    8/4/3      0.856704   0.143296     $28.52         $170.48

Blu-ray

Player

The single equivalent discount rate = 0.143296 (1 - 0.856704)

Trade discount = $28.52 ($199 x 0.143296)

Net Price = $170.48 (($199 x 0.856704)

100 x 8% = 8%

92 x 4% = 3.68%

88 x 3% = 2.64%

Total = 14.32%

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Answer:

A..is the answer of the question

Answer:

Polyhedron, Prism and Solid

Answer:

This is an acute angle, I accidently said it was a right angle before