Please help this is it

The parametric equations that models the path of the rider are:

This refers to the type of equation that makes use of a parameter to define dependent variables.

Hence, we can see that to model the path of the rider, the parametric equation that can be best used is to model the direction of the bicycle which is moving 5 miles east and then continues 8 miles north, and the fact that they started at rest 0 and the equations to make the model are:

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Answer:

The polling organization can be 95% confident that the interval from 0.455 to 0.505 captures the proportion of all city voters who would vote for Jones.

Step-by-step explanation:

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The polling organization can be 95% confident that the interval from 0.455 to 0.505 captures the proportion of all city voters who would vote for Jones.

A confidence interval is a set of values used to estimate an unknown population parameter with a high degree of certainty. It is calculated from a sample of data and takes into account the sample's variability.

The polling organisation is 95% confident that the range of 0.455 to 0.505 accurately represents the proportion of all city voters who would vote for Jones.

This means that if the researcher repeated the sampling process a number of times and created a confidence interval for each sample, 95% of those intervals would contain the true proportion of all city voters who would vote for Jones.

Thus, it does not imply that the true proportion is 95% likely to fall within the interval.

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Answer:

What is the measure of angle D?

52o

Angle D = 360-128-126-54 = 52o

Step-by-step explanation: got it right on edge

Since the sum of the angles in a quadrilateral is 360 degrees then the angle D is 50 degrees.

A quadrilateral is a four sided figure. Examples of quadrilaterals include; square, parallelogram, rectangle, kite etc.

The sum of angles in a quadrilateral is 360  degree hence;

A + B + C + D = 360 (sum of angles in a quadrilateral)

128 + 126 + 54 + D = 360

D = 360 - ( 128 + 126 + 54)

D = 50 degrees

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Answer:

x = 142°

Step-by-step explanation:

Since angle x and the 38° angle are supplementary angles, we know that the following is true...

x + 38° = 180°

x = 180° - 38°

x = 142°

Answer:

No, because grabbing the math book changed the odds of grabbing the notebook.

These are not independent events as you didn't replace the first book so that changed the probability that you would draw a notebook second , Option C is the answer.

Probability is the likeliness of an event to happen.

It is given that there are three math books, two science books, and five notebooks.

Total number of books = 3 + 2 + 5 = 10

The probability of drawing a mathbook is 3 / 10 = 0.3

and then if the mathbook is not replaced then the total outcomes for drawing a notebook changes.

Therefore they are not independent events and Option C is the answer.

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Answer:

96

Step-by-step explanation:

8 × 9 × 8/2 × 3

8 × 9 × 8/6

576/6 = 96

Answer:

96

Step-by-step explanation:

1) 2^3=2*2*2=8

2)8*9*8=576

3)3*2=6

4)576/6 = 96

Answer:

H0 is rejected and Ha is accepted that the students show a higher population mean math score on the SAT if their parents attained a higher level of education.

Step-by-step explanation:

Part a:

The null and alternate hypothesis can be formulated as

H0 : u1 ≤ u2 the two means ( of students whose parents did or did not attain a higher level of education) are equal .

against the claim

Ha: u1 > u2 the students show a higher population mean math score on the SAT if their parents attained a higher level of education.

Part b:

The point estimate of the difference between the means for the two populations is the difference of sample means

x1`- x2`

525- 487= 38

Student’s Parents

College Grads

x                                            x²

485      487               235,225         237,169

534      533                  285,156        284,089

650     526                 422,500         267,676

554       410                   306,916          168,100

550      515                   302,500        265,225

572      578                      327,184        334,084

497      448                     247,009        200,704

592     469                  350,464         219,961          

∑xi = 8400                      ∑xi ²= 4,462,962          

x1`= ∑ xi/n1= 8400/16= 525

Using statistic calculator Using formula :  σ(n-1)

s1= 59.4205

High School Grads

x                                          x²

442          492                   195,364            242,064

580          478                    336,400            228,484

479           425                      229,441             180,625

486            485                     236,196            235,225

528            390                     278,784           152,100

524             535                     274,576           286,225        

∑xi = 5844                                 ∑xi ²= 2,875,484                

x2`= ∑ xi/n2= 5844/12= 487

Using statistic calculator Using formula :  σ(n-1)

s2= 51.7476

x1`- x2`= 525- 487= 38

The test statistic is

t= (x1`- x2`) / √ s1²/n1+ s2²/n2

t= 38/ √(59.4205)²/16 + (51.7476)²/12

t=38 / √3530.7958/16 + 2677.8141/12

t= 1.804

and the degrees of freedom is

υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

= [3530.7958/16 + (2677.8141/12) ]²/ (3530.7958/16)²/15 +(2677.8141/12)²/11

≈ 25

The degrees of freedom is always rounded in this calculation

From the table t∝ = 1.708

Hence critical value is t ≥ t∝

Reject H0:

Part C.

The p-value is 0.041647.

The result is less than  0.05.

Result:

H0 is rejected and Ha is accepted that the students show a higher population mean math score on the SAT if their parents attained a higher level of education.

Answer:

Yes 40/5 is 8

Step-by-step explanation:

40/5=8

Answer:

83

Step-by-step explanation:

666

Answer:

Bananas

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

it does not matter which side you put the eight.

Answer:

4.4.

Step-by-step explanation:

I rounded my answer to 4.4. You can divide 118.3 by 26.8 to get your answer. Hope this was helpful.

Answer:

10,200

Step-by-step explanation:

Answer:

10,200

Step-by-step explanation:

Use a calculator or a piece of paper.

I hope this helps, and have a great day!

Answer: A school reserved a banquet hall for the spring dance. In addition to a $100 deposit, each couple must pay $20. If the total cost of the banquet hall is $1,140, write and solve an equation to find the number of couples attending the spring dance. b. Solve the problem arithmetically. Show the steps you used. c. Compare and contrast the steps you used to solve the problem algebraically and arithmetically.

Step-by-step explanation:

there ya go this was hard

Answer:[tex]{ \left[\begin{array}{ccc}45.5\\\\\end{array}\right] }{}\\\\\end{array}\right] } ----[/tex]

Step-by-step explanation: Hey, Basically we are going to arrange the data in an ascending order and the median is the middle value. If the number of values is an even number, the median will be the average of the two middle numbers.

Hope this helps!

Answer:

(A, 1); (A, 2); (A, 3); (A, 4); (B, 1); (B, 2); (B, 3); (B, 4)

Step-by-step explanation:

What a tedious question...

Answer:

sin(A) = 2rad19/20 = rad20/10

cos(A) = 18/20 = 9/10

tan(A) = 2rad19/18 = rad19/9

Answer:

it is 21ft

Step-by-step explanation:

Answer:

21 Ft

Step-by-step explanation:

7ft +4ft + 10ft​

7+4 = 11

11 + 10 = 21

21 Ft

Answer:

The answer is 25

Step-by-step explanation:

Answer:

A) 0

Step-by-step explanation:

The actual definition of parallel lines are lines that never intersect, so the answer is 0

The number of times parallel lines intersect is (a) 0

From the question, we have the following parameters that can be used in our computation:

The list of options in relation to parallel lines

By definition of parallel lines, we have

Parallel lines are lines that extend indefinitely on both sides without intersecting

Using the above as a guide, we have the following:

Point of intersection = 0

Hence, parallel lines intersect (a) 0 times

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Answer:

The headphones are now $40.60.

Answer:

35 per miles

Step-by-step explanation:

im dum∵b

Answer:

6

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

STEP 1:

Calculate within Parentheses:

[tex](2 + 0) = 2[/tex]

=

[tex]8 \times {2}^{2} \div 2[/tex]

STEP 2:

Calculate Exponents:

[tex] {2}^{2} = 4[/tex]

=

[tex]8 \times 4 \div 2[/tex]

STEP 3:

Multiply & Divide (left to right):

[tex]8 \times 4 \div 2 = [/tex]

[tex]8 \times 4 = 32[/tex]

[tex]32 \div 2 = 16[/tex]

So, your answer is 16.

Answer:

w=18

Step-by-step explanation:

Answer:

W=18

Step-by-step explanation:

-6+2w=30

2w=30+6

2w=36

ANSWER

Area of triangle = b*h/2

24*20/2

24*10

The area of this triangle is 240 ft squared

Hope it helps :)

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the quadratic equations.

Since, as the question told,

=>

[tex] \frac{ {x}^{2} }{3} - 3 = 0[/tex]

hence now solving we get as,

[tex] \frac{ {x}^{2} }{3 } = 3 [/tex]

now, we get as,

[tex] {x}^{2} = 9[/tex]

now, then

[tex] \sqrt{ {x}^{2} } = \sqrt{9} [/tex]

so finally, positive value of x is 3

Answer and Step-by-step explanation:

The graph to the top right is a function.

This is a function because it a straight, connected line.

The First graph isn't a function because the lines are connected, and doesn't pass the horizontal test.

The Bottom left graph isn't a function because there are two lines and they intersect.

The Bottom right graph isn't a function because there are points but aren't connected.

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