Nine students were absent on the first day of a painting class and 12 students on the second day of the class. If p is the percent increase in the number of students who were absent, which proportion can be used to calculate p?

Answer:

The mean of a density curve is indicated by µ.

The standard deviation of a density curve is indicated by σ.

This is the answer Egde 2020

The statements which are true about density curves is the mean of a density curve is indicated by u and the standard deviation of a density curve is indicated by Sx.

The density curve is a way of representation of numerical distribution data in graphical manner, where the outcomes are continues. The density curve can not be below the x-axis or horizontal line of the graph.

In a density curve,

Thus, the statements which are true about density curves is the mean of a density curve is indicated by u and the standard deviation of a density curve is indicated by Sx.

Learn more about the density curve here;

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Answer:

98/9=10.888889

Step-by-step explanation: hope that helps

7/1/9/14

=(7/1)(14/9)

=(7)(14)/(1)(9)

= 98/9

Answer:

Step-by-step explanation:

Use the slope formula:

[tex]m = \frac{y2 -y1}{x2 - x1}[/tex]

where m = slope

(-5, 0) -> means x1 = -5. y1 = 0

(7, 8) -> means x2 = 7 , y2 = 8

Substitute these values into the slope formula above and you get:

[tex]m = \frac{y2 -y1}{x2 - x1} = \frac{8-0}{7- (-5)} = \frac{8}{7+5} = \frac{8}{12} = \frac{2}{3}[/tex]

The slope of the line that passes through the points (-5,0) and (7,8) is 2/3

The formula for calculating the slope of a line is expressed as:

[tex]m = \frac{y_2-y_1}{x_2-x_1} \\m=\frac{8-0}{7-(-5)} \\m=\frac{8}{7+5}\\m=\frac{8}12} \\m= \frac{2}{3}\\[/tex]

Hence the slope of the line that passes through the points (-5,0) and (7,8) is 2/3

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Answer:

x=−3 and y=−1

Step-by-step explanation:

Substitute y=4x+11y=4x+11 into 2x-5y=-12x−5y=−1

-18x-55=-1−18x−55=−1

Solve for x in -18x-55=-1−18x−55=−1.

x=-3

Substitute x=-3x=−3 into y=4x+11y=4x+11.

y=-1

Answer:

28

Step-by-step explanation:

2x-5(4x+11)=-1

2x-20x+55=-1

-22x+55=-1

-22x+55-55=-1-55

-22x/-22=-56/-22

x=28

Answer:

49

Step-by-step explanation:

a+87=136

a=136-87

a=49

Answer:

2x-3

Step-by-step explanation:

Answer:

y = 2x + 3

Step-by-step explanation:

Parallel lines must have the same slope, in the given equation, the slope is 2, so the slope for the parallel line must also be 2, so that eliminates answer choices B and D.

Now to choose between answer choices A or C, you can just plot the given point (-3, -3) into each equation and see which one fits. Answer A seems to be the correct answer.

Hope this helps!

A

8x11=88

Hope this helps

Answer:

C. Reset the compass to distance CD

Step-by-step explanation:

Answer:

Step-by-step explanation:

6 miles

2 times 3 = 6

or

2 x 3/3 = 6

Step-by-step explanation:

here it is

hope u get it

don't forget to change the signs when u trasfer the terms

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

Since those two angles are corresponding that means they are equal to each other so we write an equation like this...

[tex]7x+9=8x+2[/tex]

Now we solve for x...

[tex]7x+9=8x+2\\9=x+2\\x=7[/tex]

And that's it x will equal 7.

Answer:

2,4 y=4

Step-by-step explanation:

Answer: m=4x

               b=-6

Step-by-step explanation:

I am pretty sure you are just finding those things in the question right? If not I apologize.

Answer:

He walked 15 feet

Step-by-step explanation:

its kinda hard to explain for me, but thats the answer :)

Answer:

5.49

Mental or simplified math may be used to solve such equation.

Answer:

The distance is 5 square root of 5, or if it asks in decimal form it would be 11.180.

Step-by-step explanation:

To find the distance between any points, you must use the distance formula. When you plug in the points given, you end up with 11.180. I hope this helps!

Answer:

-10x+7.5

Step-by-step explanation:

Answer:

- 16 ≤ y

Step-by-step explanation:

- 8 ≤ 8 + y

- 8   -8

- 16 ≤ y

Answer:

Y>-16

The > is a greater than or equal to i just can’t put it in since I’m on my phone

Step-by-step explanation:

If you’re solving for y that should be the answer

Answer:

there are 4 more. hope this helps

Answer: 4 more wrenches than screwdrivers.

Step-by-step explanation: 6 + 8 = 14. 14 > 10 by 4.

Answer: c. Rise and equilibrium quantity to fall

Step-by-step explanation:

The supply curve shows the relationship that exists between the price of a product and the quantity that's been sold by the consumer.

A leftward shift of the supply curve for widgets implies that there's a reduction in the quantity supplied. Since there's a reduction, there'll be few widgets which will lead to increase in equilibrium price and fall in the quantity.

hello! here is your answer

Answer:

1) ∠2 ≅ ∠7

⇒ they are corresponding angles

2) ∠5 ≅ ∠9

⇒ they are alternate interior angles

3) ∠4 ≅ ∠7

⇒ they are vertically opposite angles

4) if ∠3 ≅ ∠8, then p║q

⇒ they are corresponding angles

5) ∠3 ≅ ∠9

⇒ they are vertically opposite angles

6) m∠2 + m∠3 = 180

⇒ they are co-interior angles

7) ∠4 is vertical to ∠7

8) ∠2 and∠3 are same side interior angles

9) ∠5 corresponds to ∠8

10) one alternate exterior pair is ∠1 and ∠8

hope it helps you!!

Answer: 50

Step-by-step explanation:

Answer:

8 Bags

Step-by-step explanation:

If two bags cost $5, and you can spend $20, the amount of money multiplies by 4, so the number of bags would also.

2 x 4 = 8

Answer:

k = 3

Step-by-step explanation:

8k - (6k - 4) = 10

8k - 6k + 4 = 10

2k + 4 = 10

2k = 10 - 4

2k = 6

k = 3

Answer:

k=3

Step-by-step explanation:

8k-(6k-4)=10

Multiply everything inside of the parentheses by the negative.

8k -6k -4=10

Combine like terms

2k - 4 = 10

Subtract 4 from both sides

2k = 6

Divide by 2 on both sides

k-3

Answer:

A

Step-by-step explanation:

Answer:

5 hours

Step-by-step explanation:

10-2=8 now add the hours

Answer:

Domain:2,4,-6,-1,5

Range:-2,3,-1,0

Step-by-step explanation:

Range is your y axis and domain is your x-axis

For range the number 3 was repeated twice so you only have to put it once

Answer:

perpendicular

Step-by-step explanation:

Two lines with opposite signs and reciprocals depict perpendicular lines

Answer:

4.301

Step-by-step explanation:

The x coordinates, 6 and 6, add to 6+6 = 12. Then we cut this in half getting 12/2 = 6.

The x coordinate of the midpoint is 6.

The y coordinates, 7 and -5, add to 7+(-5) = 2. Which cuts in half to get 2/2 = 1.

The y coordinate of the midpoint is 1.

Put together, the midpoint is located at (6,1)