Please help thank you

Answer:

Regression to the mean occurs when the next generation regresses to the overall mean of the population.

Step-by-step explanation:

Regression to the mean occurs when the next generation regresses to the overall mean of the population. Extreme traits trend back to the average and are not increased or decreased in terms of measure. Measurable traits or characteristics that are extreme move back toward the average value. The next generation traits move back, or regress, to the average of that trait

Answer:

Regression to the mean is a statistical phenomenon that occurs whenever you have a nonrandom sample from a population and two measures that are imperfectly correlated.

Step-by-step explanation:

Answer:

Step-by-step explanation:

As all are similar polygons , corresponding sides will be in proportion.

[tex]1)\frac{9}{12} =\frac{3}{4}\\\\[/tex]

Scale factor = 3 : 4

[tex]2)\frac{12}{15}=\frac{4}{5}\\\\[/tex]

Scale factor = 4 : 5

[tex]3) \frac{10}{25}=\frac{2}{5}\\[/tex]

Scale factor = 2:5

4)

[tex]\frac{8}{16}=\frac{1}{2}[/tex]

Scale factor = 1 : 2

Your parabola should look like this image. The vertex is at (-1, 9), and you can use any of the x-intercepts (-4, 0) & (2, 0) or the y-intercept (0, 8) as a second point.

Answer:

(-1, 9) & (8, 0)

Step-by-step explanation:

Just finished the test, this is the correct answer. Hope this helps!!

Answer:

B

Step-by-step explanation:

I think is b.....Hope this helps byeee.

Answer:

B

Step-by-step explanation:

Because u need to understand that if u do 45 -15 + 30 you can find the answer by knowing Jerry's age. Therefore it is B.

Oh and anyone reading this my roblox is Supertasticgg and follow me lol ;p

And sub to flamingo if you get it right to.

Answer:To find the volume of a composite solid, u identify the different parts it is made of, work out the volume of each part independently, and sum up the volumes of its parts. For composite prisms, where the bases are a composite shape, the area of the bases is the sum of the areas of the parts it is made of.

Answer:

113.04

Hope this helps!

Answer:

113.04

Step-by-step explanation:

So in order to get area you gotta do R times R times Pie

So then,

You do 6 times 6,

and get 36,

Then you times 36 by 3.14 estimated,

Which gets you 113.04

Answer

I think it is (5,0)

Answer:

25%

Step-by-step explanation:

2 donuts are 1/4 of all of the donuts so that is 25%

Answer:

C. neither Likely or unlikely

Step-by-step explanation:

Its neither because its a 50/50 chance it will land on either side.

Answer:

31 < 35 < 42 < 46 < 48 < 55 < 59 < 70 < 71 < 75 < 78 < 80

Step-by-step explanation:

Order from Least to Greatest

Answer:    31 < 35 < 42 < 46 < 48 < 55 < 59 < 70 < 71 < 75 < 78 < 80

Hope this helps.

Answer:

31, 35, 42, 46, 48, 55, 59, 70, 71, 75, 80

Step-by-step explanation:

Answer:

153.9

Step-by-step explanation:

Formula for area

A = r^2 * π

A = 7^2 * π

A = 153.93804

A ≈ 153.9

We have been given that last month Maria purchased a new cell phone for $500. The store manager told her that her cell phone would depreciate by 70% every 6 months.

We know that an exponential function is in form [tex]y=a\cdot (1-r)^x[/tex], where,

y = Final value,

a = Initial value,

r = Decay rate in decimal form,

x = Time in years.

Let us convert [tex]70\%[/tex] into decimal form.

[tex]70\%=\frac{70}{100}=0.70[/tex]

Initial value of car is 500, so [tex]a=500[/tex].

Since value of phone depreciates every  months, so value of phone will depreciate twice in a year.

Upon substituting our given values in exponential decay function, we will get:

[tex]V=500(1-0.70)^{2x}[/tex]

To find the value of phone after 2 years, we will substitute [tex]x=2[/tex] in our equation.

[tex]V=500(1-0.70)^{2(\cdot 2)}[/tex]

[tex]V=500(1-0.70)^{4}[/tex]

Therefore, option D is the correct choice.

Let us simplify our equation.

[tex]V=500(0.30)^{4}[/tex]

Therefore, option B is correct as well.

Answer:

2.84

Step-by-step explanation:

Answer:

1) 5

2) 25

Step-by-step explanation:

Since a square has equal sides, we have 4x=2x+10

2x=10

x=5

The area of a square is 5 squared, which is 25.

Answer:

Step-by-step explanation:

Length of each ribbon = 5/8 yards

Length of 16 pieces of ribbon = 16* (5/8)

                                                  [tex]=16*\frac{5}{8}\\\\=2 * 5 \\\\=10[/tex]

                                                 = 10 yards

Answer: Isosceles

Step-by-step explanation:

Given: AB || DE ,  BC is a transversal

∠ABC ≅ ∠BCE by Alternate Interior Angles Theorem --> ∠BCE = 80°

∠DCA, ∠ACB, & ∠BCA are supplementary  --> ∠ACB = 50°

By the Triangle Sum Theorem, ∠A+∠B+∠C  = 180° --> ∠CAB = 50°

Triangle is isosceles because ∠A ≅ ∠C

Answer:

Adult tickets cost $11 and child tickets cost $13

Step-by-step explanation:

Multiply the second equation by -2, then add the equations together.

(8a+9c=205)

−2(4a+3c=83)

Becomes:

8a+9c=205

−8a−6c=−166

Add these equations to eliminate a:

3c = 39

Then solve3c=39for c:

3c=39

[tex]\frac{3c}{3}[/tex] = [tex]\frac{39}{3}[/tex]

(Divide both sides by 3)

c = 13

Now that we've found c let's plug it back in to solve for a.

Write down an original equation:

8a+9c=205

Substitute 13 for c in 8a+9c=205:

8a+(9)(13)=205

8a+117=205 (Simplify both sides of the equation)

8a+117+−117=205+−117 (Add -117 to both sides)

8a=88

[tex]\frac{8a}{8}[/tex] = [tex]\frac{88}{8}[/tex]

(Divide both sides by 8)

a = 11

Answer:  D because as the numbers grow the right numbers grow too.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The system of inequalities is y<x  and y<4.

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

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.

Given, the region is shaded y < 4.

And the region is not exceeding the x.

So, y<x.

Therefore, the system of inequalities is y<x  and y<4.

To learn more about the inequality in mathematics;

brainly.com/question/28823603

#SPJ5

Answer:

The Triangle Is A Right Triangle Because 5^2 + 12^2 = 13^2.

Step-by-step explanation:

5^2 = 25. 12^2 = 144. With the Pythagorean theorem, (a^2 + b^2 = c^2), 5 is a, 12 is b, and 13 is c.

25 + 144 = 169.

13 ^ 2 = 169.

Since a^2 + b^2 = c^2 is true, the triangle is a right triangle.

Given:

Sides of triangle= 5cm, 13cm and 12cm

To find: Whether a triangle is a right angled triangle.

This can be solved by applying Pythagorean theorem:

According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.

[tex]H^2=P^2+B^2[/tex]

where,

H= Hypotenuse

P= Perpendicular

B=Base

Applying given values in the formula:

[tex]H^2=P^2+B^2\\\\13^2=5^2+12^2\\\\169=25+144\\\\169=169[/tex]

Since, R.H.S= L.H.S

Thus, we can say that this triangle is a right angled triangle.

Learn more:

brainly.com/question/343682

Answer: 4181.46 cu. feet

118405761 cu. cm

Step-by-step explanation:

Volume = pi r^2 h

Answer:

i think 14 sorry if its wrong

Step-by-step explanation:

Answer:

Frequency density is found when we divide the class width being the days of the week = 7    So that when we see 6 emails its divided by 7 =  6/7 0.857142857 as density     59/7 = 8.42857143 and 55/7 =7.85714286  and 106/7 = 15.1428571   and 84/7 = 12  and 86/7 = 12.285714  and 96/7 =13.7142857   this shows us we need to draw 16 bars up and 7 bars across - The bars across (x line) can be days of the week and the bars going up (y line) an be number of emails if 16 is ore than 106/7  then  16 squares > 106/7 then 15 < 106/7  So we ensure its a proportion of 15.143 and not more than that-   and not less than 15.142  for day 4 = 106 emails

Answer:

                    aₙ = 6 + (n - 1)*7

a₃ = 6 + (3 - 1)*7 = 20

a₅ = 6 + (5 - 1)*7 = 34

a₁₁ = 6 + (11 - 1)*7 = 76

Answer:

no.

Step-by-step explanation:

a triangle can only have 180° in total but

60+60+63

=183°

Therefore a triangle can not have these three angles together.

Answer:IDK but I think you have to find wht 1.3_____3.5 and that will give you your answer

Step-by-step explanation:

Answer:

C=diameter x pi

radius + radius = diameter

6+6=12

12 x 3.14 = 37.68

8 x 3.14 = 25.12

_____________

Radius x radius x pi = area

diameter / 2 = radius

8/2=4

4 x 4 = 16 x 3.14 = 50.24

6 x 6 = 36  x 3.14 = 113.04

_______________

6 km circle has  circum of 37.68 and area of 113.04

8 km circle has circum of 25.12 and area of 50.24

Hope this helps

Step-by-step explanation:

Answer:

The question is missing the sample life insurance premium illustration  as found in the attached.

The correct option based on the below calculation is A,$33.75

Step-by-step explanation:

A female non-smoker  who wanted a coverage of $25,000 as found in attached the sample life insurance premium illustration would pay $6.75 in premium.

Based on the above, a female non-smoker who wanted a coverage of $125,000 has it premium computed thus:

premium=$125,000/$25,000*$6.75

premium=5*$6.75=$33.75

The correct option is A,$33.75

Answer:

The insurance premium for a 42-year old nonsmoking female who wants $125,000 in coverage is $33.75. The right answer is a.

Step-by-step explanation:

In order to calculate the insurance premium for a 42-year old nonsmoking female who wants $125,000 in coverage we would have to use the following formula:

insurance premium= (coverage amount/monthly premiun amount)*$6.75

Therefore, insurance premium= ($125,000/$25,000)×$6.75

insurance premium= $33.75

The insurance premium for a 42-year old nonsmoking female who wants $125,000 in coverage is $33.75

Answer:

WRS=25 degree

Step-by-step explanation:

Angle VRT + angle TRS = 180 degree (supplementary angles)

5x+25x+30=180

5x+25x=180-30

30x=150

x=150/30=5

Substituting x=5 into angle VRT

5(5)=25

VRT= 25 degree

Looking at the diagram, angle VRT and angle WRS are vertically opposite angle and are therefore equal.

Now, angle WRS= 25 degree

The measure of the angle of intersecting lines ∠WRS = 25°

Two straight lines that intersect at the same location are said to be intersecting lines. The junction point is the place where two intersecting lines meet. Four angles are created when two lines cross. The four angles added together always equal 360 degrees.

Perpendicular lines are two straight lines that intersect and form right angles. When two perpendicular lines intersect, they form four right angles.

When lines intersect, two angle relationships are formed:

Opposite angles are congruent

Adjacent angles are supplementary

Given data ,

Let the two intersecting lines be a and b

where the measure of ∠SRT = ( 25x + 30 )°

The measure of angle ∠VRT = ( 5x )°

And , the measure of ∠VRT = measure of ∠WRS ( Opposite angles are congruent )

And , the measure of ∠VRT + measure of ∠SRT = 180° ( angles in straight line )

So , 5x + 25x + 30 = 180

30x = 150°

Divide by 30 on both sides , we get

x = 5

Now , the measure of ∠WRS = [ 5 ( 5 ) ] °

Hence , the measure of angle ∠WRS = 25°

To learn more about angles formed by intersecting lines click :

https://brainly.com/question/16315358

#SPJ7

Step-by-step explanation:

under root 75 yards square - 45 yards square

so the length of a is 60 yd.

Look at the attached picture

Hope it will help you

Good luck on your assignment..

Answer:

66

Step-by-step explanation:

Answer:

y=66

Step-by-step explanation:

Start with the angle that has the purple arrow pointing to it.  Next to it, part of the right angle is 27 degrees so you subtract that from 90 degrees, which makes you get 63 degrees.  The measurement of all a triangle's angles is 180 degrees, so you add 63 and 51 to get 114, then subtract 114 from 180 to get 66 degrees.  

Hope this helps!