PLEASE HELP I GIVE 100 POINTS!!

1. Zozi keeps track of the miles per gallon her car gets per week. She has accumulated the following data:
(1, 24), (2, 24.39), (3, 24.78), (4, 25.17)

What is the common difference or ratio?
a. The common ratio is 0.99.
b. The common difference is 0.39.
c. The common difference is 0.76.
d. The common ratio is 1.02.
2.
Zach read a book for 10 minutes every weekend in the first month, 20 minutes in the second month, 40 minutes in the third month, and 80 minutes in the fourth month.
Victoria read a book for 35 minutes every weekend in the first month, 50 minutes in the second month, 65 minutes in the third month, and 80 minutes in the fourth month.

Which statement best describes the methods used by Zach and Victoria to increase the time they spent reading a book?
a. Both Victoria and Zach's method is exponential because the number of minutes increased by an equal factor every month.
b. Zach's method is linear because the number of minutes increased by an equal factor every month.
c. Both Victoria and Zach's method is exponential because the number of minutes increased by an equal number every month.
d. Victoria's method is linear because the number of minutes increased by an equal number every month.

Answers

Answer 1

9514 1404 393

Answer:

  1.  b. The common difference is 0.39

  2.  no good answer (Zach's method is exponential; Victoria's is linear)

Step-by-step explanation:

1. The differences in mileage are ...

  24.39 -24 = 0.39

  24.78 -24.39 = 0.39

  25.17 -24.78 = 0.39

The common difference is 0.39.

____

2. Zach's monthly times are ...

  10, 20, 40, 80

The differences are ...

  10, 20, 40

The ratios are ...

  20/10 = 40/20 = 80/40 = 2

Zach's times have a common ratio, so are exponential.

__

Victoria's monthly times are ...

  35, 50, 65, 80

The differences are ...

  15, 15, 15

Victoria's times have a common difference, so are linear.

__

The choices are ...

  a. both exponential; common factor . . . . correct for Zach; not for Victoria

  b. Zach's is linear (has equal factor) . . . incorrect

  c. both exponential; common difference . . . incorrect

  d. Victoria's is linear . . . . correct for Victoria

Choice D describes Victoria's method. Choice A is correct regarding Zach's method, but incorrect regarding Victoria's.

Choices B and C are not self-consistent, so are incorrect on their face.

There is no good choice.

Answer 2

Answer:

number 1 b number 2 c

Step-by-step explanation:


Related Questions

FIRST TO ACTUALLY HELP ME WITH THIS QUESTION GETS THE BRAINLIEST

Answers

Answer:

Just do 14+15 because the variables are equal.

Answer:

29 ehehehehe

Step-by-step explanation:


PLEASE ANSWER I WILL GIVE BRANLYIST

Answers

Answer:

use what is given

use CTCP

Anyone help me please

Answers

Answer:

2

Step-by-step explanation:

Multiply 3 by the exponets and then times those fractions  :)))))

A unit rate is a rate in which A one of the quantities is 1. B the quantities add up to 1. C both of the quantities are 1. D neither of the quantities is 1.

Answers

Answer: A. because it is the only one that makes sense, the unit rate is where the second quantity is one unit: etc. 1 minute=60 seconds1 hour=60 minutes (or) 3600 seconds1 day=24 hours (or) 1440 minutes.

Divide. Express your answer in simplest form.
5/12 divided by 7/8

Help plzzz

Answers

Answer:

5/12 / 7/8 =10/21

Step-by-step explanation:

Answer:

10/21

Step-by-step explanation:

5/12 divided by 7/8

5/12÷7/8

5/12×8/7

5×8/12×7

10/21

So the answer is 10/21

A radioactive substance decays according to the formula
Q(t)=Q0eâkt where Q(t) denotes the amount of the substance present at time t (measured in years),
Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay constant.
(a) Find the half-life of the substance in terms of k.
(b) Suppose a radioactive substance decays according to the formula
Q(t)=15eâ0.0001438t
How long will it take for the substance to decay to half the original amount? (Round your answer to the nearest whole number.) yr

Answers

Answer:

[tex]t=4820 y[/tex]

Step-by-step explanation:

a) The half-life equation is given by:

[tex]t_{1/2}=\frac{ln(2)}{k}[/tex]

b) Using the decay equation we have:

[tex]Q(t)=15e^{-0.0001438t}[/tex]

we need to find t when [tex]Q(t)=\frac{Q_{0}}{2}[/tex]

[tex]7.5=15e^{-0.0001438t}[/tex]

[tex]0.5=e^{-0.0001438t}[/tex]

[tex]ln(0.5)=-0.0001438t[/tex]

[tex]t=\frac{ln(0.5)}{-0.0001438}[/tex]

[tex]t=4820 y[/tex]

Therefore, it will take 4820 years to decay to half the original amount.

I hope it helps you!

A watering can dispenses water at the rate of 0.20 gallon per minute. The original volume of water in the can was 8 gallons. Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after can starts dispensing water?

{(7.8, 1), (7.6, 2), (7.4, 3)}
{(1, 7.8), (2, 7.6), (3, 7.4)}
{(8.0, 1), (7.8, 2), (7.6, 3)}
{(1, 8.0), (2, 7.8), (3, 7.6)}

Answers

Answer:

The answer is {(7.8, 1), (7.6, 2), (7.4,3)}

Step-by-step explanation:

The first minute, you would have to subtract 8 - 0.20

Answer:(7.8, 1), (7.6, 2), (7.4, 3)}

Step-by-step explanation:

Citing drastic differences between her school and the white school across the
street, Clark fought for for teachers. *
24x - 64x2 - 21x + 56
(3x2-4)(8x-14)
(8x2-7)(3x-8)
Osimilar scheduling
O pay equalization
(6x-8)(4x-7)

Answers

Answer:

the pay one

Step-by-step explanation:

i thinks sorry if i get it wrong

Answer: 3x-184

Step-by-step explanation:

first you subtract 24x-21x then you multply 64*2 then add 56 to the answer 0f 64*2

PLEASE HELP ME WITH GEOMETRY SO I DON"T HAVE TO TAKE THE FINAL!!!!

Answers

Sure. What do you need help with exactly?

-6 + 2x = -10 what is x

Answers

Answer:

x = -2

Step-by-step explanation:

-6 + 2x = -10

+6            +6

2x = -4

Divide both sides by 2

x = -2

I hope this was helpful! <3

Could I get brainliest?

Which number line best represents the solutions to 7 < -2x + 3?

Answers

Answer:

we need a number line for this question...

Step-by-step explanation:

Answer:

x< -2

Step-by-step explanation:

Part D
How are the signs of the coordinates of point A and point C related HURRY

Answers

Answer: They both are located at (2,3)

Step-by-step explanation:

The sign that A and C are related is that they both have the same distance from the y axis.

What are coordinates?

a pair of numbers that employ the horizontal and vertical distinctions from the two reference axes to represent a point's placement on a coordinate plane. typically expressed by the x-value and y-value pairs (x,y).

Coordinates are always written in the form of small brackets the first term will be x and the second term will be y.

For example (5,3) here 5 will be for the x and 3 will be for the y.

Another example is (9,0) here 9 is for x and 0 is for y.

Given that the coordinates A and C how are related now as we can see that both A and C are the same amount of distance by the y-axis.

This also can be seen by the coordination of A and C.

For more about coordinates

https://brainly.com/question/7869125

#SPJ2

Solve the given system of equations utilizing either the substitution or addition method.

Answers

Answer:

x = − 6.3 ,  y = 2.6

Step-by-step explanation:

In the given figure, line m is parallel to line n, and line a is parallel to line b.

Answers

Answer:

vertical angles theorem

Corresponding angles are two or more angles that have similar properties. Thus they have equal measures.

The required prove is given in the explanation below:

Considering the given diagram, it can be observed that:

<1 ≅ <3 and <2 ≅ <4     (vertically opposite angle theorem)

Also,

<5 ≅ < 7 and <6 ≅ <8    (vertically opposite angle theorem)

m ⊥ n and a ⊥ b             (given)

Thus,

<1 + <2 + <3 + <4 = [tex]360^{o}[/tex] (sum of angles at a point)

Also,

<5 + <6 + <7 + <8 = [tex]360^{o}[/tex]  (sum of angles at a point)

Therefore,

<1 ≅ <7                             (corresponding exterior angle property)

Therefore by corresponding exterior angle theorem, <1 ≅ <7.

Visit: https://brainly.com/question/17883766

A total of 4.4 ml of medication is in a vial. An injection of 1.125 ml is withdrawn into a
syringe. How much remains in the vial?

Answers

Answer:

2.275

Step-by-step explanation:

4.4-1.175= 2.275

(9+5)t pls help meee

Answers

Answer:

14t

Step-by-step explanation:

the answer is 14t hope this helps

Triangle similarity problem

Answers

Answer:

ST = 16

Step-by-step explanation:

The similar triangles are given as triangle PQR similar to triangle STU.

That makes sides PQ and ST corresponding sides. It also makes sides PR and SU corresponding sides. The ratios of the lengths of corresponding sides of similar triangles are equal.

[tex] \dfrac{ST}{PQ} = \dfrac{SU}{PR} [/tex]

[tex] \dfrac{5x + 1}{36} = \dfrac{11x - 5}{63} [/tex]

Multiply both sides by 9.

[tex] \dfrac{5x + 1}{4} = \dfrac{11x - 5}{7} [/tex]

Cross multiply.

[tex] 7(5x + 1) = 4(11x - 5) [/tex]

Distribute on both sides.

35x + 7 = 44x - 20

Subtract 44x from both sides.

-9x + 7 = -20

Subtract 7 from both sides.

-9x = -27

Divide both sides by -9.

x = 3

ST = 5x + 1 = 5(3) + 1 = 15 + 1 = 16

Answer: ST = 16

HELP NOW! A music club has 35 drum players. If 25% of the total number of members in the club are drum players, what is the total number of members in the club?

Answers

140 total members. 35 is just 1/4 of the members there so you can just multiply it 4 times to get your answer because 100% of members is 140

35 = 25%
70 = 50%
105 = 75%
140 = 100%

There's a way to think about it, in case you get other questions like this.

When you look at your problem, take out the 35. Out of the picture.

Look at 25%. 25% x 4 = 100% Meaning 4 is golden.

Then bring back the 35 and multiply it by 4. It gives you 140.

:)))) Use this mentallity on other question on percentages!

HELPPP ASAPPP 30 POINTS
John goes out to eat at a local restaurant. The bill comes to $47.83. John want to leave a 20% tip. How much of a tip should he leave? (use only numbers) $____

Answers

Answer:

Twenty percent of $47.83 is equal to $14.66

If you did 20% of 47.83, that would equal 9.566. So, now you need to take the 5, which is equal to 500 cents, and turn it into 5 dollars. (One hundred cents is a dollar so 500 cents , is 5 dollars.) now it’s 9 + 5. Easy, it’s 14. Now add back the 66, and it’s 14.66 dollars. So the answer is...

14.66

Hope this helps =3

Calculus application

1. Supposed that a ball is dropped from the upper observation deck of the Horizons 101 Tower 1., located
178 m above the ground. (a) What is the velocity of the ball after 5 sec? (b) How fast is the ball traveling
when it hits the ground?

Answers

Answer:

49m/s

59.07 m/s

Step-by-step explanation:

Given that :

Distance (s) = 178 m

Acceleration due to gravity (a) = g(downward) = 9.8m/s²

Velocity (V) after 5 seconds ;

The initial velocity (u) = 0

Using the relation :

v = u + at

Where ; t = Time = 5 seconds ; a = 9.8m/s²

v = 0 + 9.8(5)

v = 0 + 49

V = 49 m/s

Hence, velocity after 5 seconds = 49m/s

b) How fast is the ball traveling when it hits the ground?

V² = u² + 2as

Where s = height = 178m

V² = 0 + 2(9.8)(178)

V² = 0 + 3488.8

V² = 3488.8

V = √3488.8

V = 59.07 m/s

Change this into decimal step by step plz

Answers

Answer:

2.6

Step-by-step explanation:

3/5 ---> ?/100

100/5 ---> 20

3       20         60

--  x           =   -------

5       20         100

60/100 = 6/10

6/10 as a decimal is 0.6

2 + 0.6

= 2.6

Hope this helps!!

need help with another sequence problem.
1,1,2,3,5,__,__,__ help!!!

Answers

The answers is 8,13,21,34,55.....

which of these is an example of typing at an average of 42 words per minute

Answers

There aren’t any options but maybe 42m where m represents the minutes. So for every minute it will be multiplied by 42

Determine the integer value of n that satisfies the the equation.

4^n=16
3^n=1/81

Answers

Answer:

Step-by-step explanation:

[tex]4^{n} = 16 \\\\4^{n} = 4^2\\\\[/tex]

n = 2

2)

[tex]3^{n} =\frac{1}{81}\\\\ = \frac{1}{3^{4}}\\\\3^{n} = 3^{-4}[/tex]

n = -4

The graph below shows a quadratic function f(x) and an absolute value function g(x)

Answers

Answer:

I believe it should be b and d

Step-by-step explanation:

hoped it helped :)

12x + 4x + 25y + 15y A. 2(8x + 10 B. 4(4x + 10) C. 5(3x + 5y D. 8(2x + 5y​

Answers

Answer:

109 x. A. Try your expression with a real number to see if it makes sense. For ... negative is a positive. C:X-3 ya tx combine like terms. 2x-3y². (De) 4x3y - 6xy3 ... B. (94-6) = (12-4x). Solve for x distribute on each side. if you use a calculator, put the ... distribute solve: 3(x+2). 3x +6. +57. 8 X+. 1 -6. = 5(-2-x). < -10 -5x. +5*. < -10.

Step-by-step explanation:

Answer:

The answer to 12x + 4x + 25y + 15y is 16x+40y for sure, I did it multiple times.

I don't see that answer in what you provided.

Step-by-step explanation:

Is there anything more that I can do to help you?

2 +2
6+6
794×890 ×572 ×89

e​

Answers

Answer:

2+2=4

6+6= 12

794*890*572*89=33145180640

Step-by-step explanation:

PLEASE HELP ME FIRST ANSWER GETS BRAINLIST AND ANSWER MY OTHERS PLEASE

Answers

Answer:

2. ad is the angle bisector of angle a

3. ad is perpendicular to bc

4. both are right angles as given

5. common

6. ASA congruence

Write the equation in slope-intercept form. 4x+3y=18
Question 7 options:

y=43x+6

y=−34x+184

y=−43x+6

y=4x+6

Answers

Answer:

y = -4/3x + 6

Step-by-step explanation:

1. 3y - 4x + 3y = 18 - 3y

2. 4x = -3y + 18

3. 18 - 4x = -3y + 18 - 18

4. -3/ -3y = 4x - 18 /3

5. y = -4/3x + 6

Check this for me guys and lmk!! ASAP thanksss

Answers

Answer:

Step-by-step explanation:

for the first division blank you would get 11/2 or 5 1/2 flip the second fraction and multiply

for the second one it would be 5/2 or 2 1/2

For the third one it would be 3. like i said flip the second fraction and multiply in order to divide correctly

Answer:

2 1/2 for oatmeal

3 for salad

Step-by-step explanation:

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