Mr. Davis has displayed data boxes using box and whisker plots representing the scores on the first exam in his two calculus classes. Using these plots, what can Mr Davis correctly deduce about how the scores of the two classes compare?

Answer:

(-1,-3)

Step-by-step explanation:

it's where the ponts at

Answer:

The slope is -3

Step-by-step explanation: Use rise over run

rise/ run = -3/1

so the slope is -3

a) The step where Mardie first made an error is given as follows: Step 1, as the negative sign means that the sign of each term inside the parenthesis should be changed.

b) The correct expression is given as follows: -8.6b + 28.

The expression in the context of this problem is defined as follows:

(-3.78b + 12) - (4.82b - 16).

The negative sign before the parenthesis means that the sign of each term inside the parenthesis is changed, hence:

-3.78b + 12 - 4.82b + 16.

This is the step where Maddie made the first error.

Then, to simplify the expression, we combine the like terms, as follows:

b(-3.78 - 4.82) + 12 + 16 = -8.6b + 28.

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Answer:

The number is 32.

The equation is 32 - 9 = 23.

Explanation:

The original number is 32, but when you subtract 9, the number changes to 23. So the digits reversed.

The required number is 32 and the equation is 10x+y.

The sum of the digits of a two-digit number is 5. If nine is subtracted from the number, the digits will be reversed. To Find the number and the equation

In mathematics it deals with numbers of operations according to the statements.

Let the number at unit place is y and at tenth place is x so the number is
=10x+y
Now sum of the number is 5
x + y =5    -------(1)
When 9 is subtracted from the number, the digits will be reversed.
10x+y-9=10y+x
9x-9y=9
x-y=1    ------(2)

Solving equation 1 and 2
y = 2
x = 3
the number 10(3)+2 = 32

Thus, The required number is 32.the equation is 10x+y.

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dd

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ddhsusy

Answer:

D.

Step-by-step explanation:

According to the dot plot,

3 students spend 0.5 minutes brushing their teeth.

2 students spend 1.5 minutes brushing their teeth.

1 student spends 2.5 minutes brushing their teeth.

2 students spend 3.5 minutes brushing their teeth.

1 students spend 4 minutes brushing their teeth.

So, the number set will be: {0.5, 0.5, 0.5, 1.5, 1.5, 2.5, 3.5, 3.5, 4}

Median: The middle number in a set that is ordered from least to greatest.

In this example, the median is 1.5

Mean: The sum of all values divided by the number of values.

In this set there are 9 values so we’ll divide the sum by 9

In this example, the mean would be:

(0.5 + 0.5 + 0.5 + 1.5 + 1.5 + 2.5 + 3.5 + 3.5 + 4) ÷ 9

18 ÷ 9 = 2

If we compare the mean to the median we can see that the mean is greater because 2 > 1.5

Answer:

1) vertex:-1

axis of symmetry:-1

y-intercept (0,-10)

x-intercepts (-3.449, 0) and (1.449, 0)

2) vertex: -1

axis of symmetry: -1

y-intercept (0,-15)

x-intercepts (3, 0) and (-5, 0)

Step-by-step explanation:

Answer:

1 adult camel for every 11 baby camels, or 1:11

Answer:

5 pounds

Step-by-step explanation:

Answer:

5 pounds

Step-by-step explanation:

We can use a inequality to answer this question: it will be

--- 2.75b + 15 < 30 (let b equal the bait)
subtract 15 on both sides

---- 2.75b < 15

divide 2.75 on both sides

---- b = 5.4.... (rounded)

Since you can't buy some of a pound, he can Geraldo can only buy 5 pounds of bait. Hope this helps.

Answer:

Nothing

Step-by-step explanation: Your answer can't be simplified. So, your answer is 8/15 because your answer can't be simplified.

1) Simplified form of expression is, 0.533

2) The solution is, 8/15

Now, We can simplify 8/15 as,

8 / 15

After divide we get;

8/15 = 0.533

And, We have to simplify the expression,

= 2/3 x 4/5

= 8 / 15

Therefore, We get;

1) Simplified form of expression is, 0.533

2) The solution is, 8/15

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Answer:

the first one

Step-by-step explanation:

it is the first one it's the only one that makes sense

Answer:

69000m³

hope i helped, if i didnt sry

Answer:

to serve hot chocolate to 14 people, you need:

7/6 cups boiling water

12.25 cups milk

2  5/8 teaspoons vanilla

7/4 half & half cream

To serve cookies to 14 people you need:

2.4 (rounded) cups flour

7/8 teaspoon baking soda

7/16 teaspoon baking powder

7/8 cup butter

21/16 cups white sugar

Step-by-step explanation:

The regular recipe for hot chocolate serves 4 people.  But 14 are being served; 14 is 3.5 times as much as 4, so multiply the measurements by 3.5.

The recipe for cookies makes 16 servings of 3 cookies (4 dozen total), so you must use slightly smaller quantities.  14 is 7/8 as much as 16, so just multiply the measurements by 7/8.

Answer:

its answered

Step-by-step explanation:

tyy for points? :)

Answer:

157.08m

Step-by-step explanation:

here is how: C=2πr=2·π·25≈157.07963m

The solution set of inequality 4 − 3x < 7 is x > -1.

In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other.

Given:

4 − 3x < 7

To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.

So,

-3x < 3

x > -1

Therefore, the value is x > -1.

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Answer:

None.

Step-by-step explanation:

None because if however many text messages you do, Plan A will be 10 more dollars than Plan B

Answer:

15 is the measure of B

Step-by-step explanation:

Complementary angles have a sum of 90 degrees

Answer:

A) Let f(x) represent the number of foster homes available after x months, and let g(x) represent the number of homeless pets after x months.

f(x) = 20 + 2x (since 2 additional people are expected to foster each month)

g(x) = 10(1.15)^x (since the number of homeless pets is growing at a rate of 15% per month)

Answer:

7.5 hrs.

Step-by-step explanation:

First we need to find how much Magan earns per hour using the slope-intercept form: y = mx + b

Slope (m) = \(\frac{y_2-y_1}{x_2-x_1}\)

We will be using: (4, 70.80) and (9, 159.30) to find the slope of this table..

\(m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{159.30-70.80}{9-4} \\\\m=\frac{88.50}{5} \\\\m=17.7\)

y = mx + b

y = 17.7x + b

I will be using (4, 70.80) to find the value of b

(4, 70.80)

y = 17.7x + b

70.80 = 17.7(4) + b

70.80 = 70.80 + b

-70.80  -70.80

0 = b

y = 17.7x + b ==> y = 17.7x + 0 =  OR  y = 17.7x (since the value of b is 0)

The question wants us to find out how long it took Magan to make $132.75

y = 17.7x

132.75 = 17.7x

/17.7        /17.7

7.5 = x

This means that it took him 7.5 (seven and a half) hours to make $132.72

*View the attached graph to confirm the answer*

Hope this helps!

Answer:

7.5 hrs.

Hope this helps! Good luck! :)

B (4, 2) is the solution to both lines A and B.

Just count to find the coordinate points. 4 = x and 2 = y.

They both hit the coordinate points (4, 2) which means it should be B.

Side Note - You shouldn't bunch the answers in the same paragraph because it'll look like a bunch of mess. I was a bit confused when reading it for the first time.

Answer:

The hourly charge for the first three hours is 4 dollars. The hourly charge for the next three hours is 2 dollars. The hourly charge for the next four hours is 1 dollar. The maximum price of the bike rental is 30 dollars.

Step-by-step explanation:

Looking at the graph, we see that the slope, which is the bike rental price per hour, is constant for the first three hours. Then, it changes and remains constant between the 3rd and 6th hour. After that, it changes and remains constant between the 6th and 10th hours. Finally, the cost becomes a constant after 10 hours, meaning the slope becomes 0. This is consistent with the information given in the answer section. Now, we can proceed with the problem.

We have to remember that the slope of the graph is the hourly charge because the y-axis is the cost and the x-axis is the time.

The first part of the question deals with the first three hours. Between hour 0 and hour 3, the price goes up from 8 to 20. We can calculate the slope (m) by calculating the rise over the run (divide the difference in the prices by the difference in the hours):

\(m=\frac{20-8}{3-0}=\frac{12}{3}=4\)

We can also see visually that the price goes up by 4 for every hour. Either way, the hourly charge for the first three hours is 4 dollars

Between hours 3 and 6, which is the second part of the question, the price goes from 20 to 26. Here is the calculation of the slope:

\(m=\frac{26-20}{6-3}=\frac{6}{3}=2\)

Therefore, the hourly charge for the next three hours is 2 dollars

Between hours 6 and 10, which is the third part of the question, the price goes from 26 to 30. Here is the calculation of the slope:

\(m=\frac{30-26}{4-0}=\frac{4}{4}=1\)

Therefore, the hourly charge for the next four hours is 1 dollar

Finally, after hour 10, the price consistently stays at 30. The slope is 0 because the line on the graph is horizontal. The horizontal line is also the maximum portion of the graph. Therefore, the maximum price of the bike rental is 30 dollars.

Answer:

2.54/1 = x/35

Step-by-step explanation:

2.54 cm per 1 inch = 2.54/1

35 inches total: x/35

2.54/1 = x/35

Answer:

the slope is undefined

Step-by-step explanation:

x=-1

Answer:

Step-by-step explanation:

Okay so first

-3 - 4

---------

-1 - (-1)

When you subtract a negetive its really just adding so

-3 - 4

---------

-1 + 1

-3 - 4 is -7

-1 + 1 is 0

now we have -7/0

Which means our slope does not go horizontally at all! it only goes vertical

this actually means our slope is just undefined

Answer:

area of large triangle=1/2× 14×9=63

area of small triangle=1/2×4××14=28

total area=63+28=91

Answer:

12x12 12x6 H = 46cm

Step-by-step explanation:

took quiz

Answer:

46 cm

Step-by-step explanation:

I learned this formula in math last year