Scenario: Does the age at which babies learn to crawl depend on the time of the year that the babies were born? Data were collected from parents who brought their babies into the University of Denver’s Infant Study Center to participate in one of a number of experiments between 1988 and 1991. Parents reported the birth month and the age in which their child first began to crawl. The resulting data were grouped by month of birth: January, May, and September.

Answers

Answer 1

The age for when babies learn to crawl is different for Januar,May, and September.. so I guess yes?


Related Questions

Jeremy can do 22 push ups in 4 days. At this rate how many push-ups can he do in 6 days

Answers

Answer:

I think it's

Step-by-step explanation:

22=4

c=6

132,=4c

c=132/4

c=33

Answer:132 push ups

Step-by-step explanation:

CAN SOMEBODY PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

x-intercept=-2

y-intercept=3

Pythagorean Theorem POSSIBLE POINTS : 13:33 Two joggers run 12 miles north and then 8 miles west. What is the shortest distance to reach their starting point? It irrational round to the nearest tenth of a mile.​

Answers

Answer:

14.4 miles

Step-by-step explanation:

Given that :

Distance moved North = 12 miles

Distance moved West = 8 miles

Shortest distance to reach starting point :

Let shortest distance to reach starting point = d miles

Using the relation :

Longest side of a right angled triangle:

d = sqrt(8^2 + 12^2)

d = sqrt(64 + 144)

d = sqrt(208)

d = 14.422205

d = 14.4 miles (nearest tenth of a mile)

50t-43=52t-81
WHAT IS T?

Answers

Answer: T = 19

Step-by-step explanation:

Hope This Helps!!! : )

Answer:

t=19

Step-by-step explanation:

-43+81=52t-50t

38=2t

t=19

Give a common multiple of 8 and 10 between 1 and 100.

Answers

Answer:

40

Step-by-step explanation:

8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80

10: 10, 20, 30, 40, 50, 60, 70, 80

You bike 11.2 miles in 1.4 hours at a steady rate what equation represents to proportional relationship between the X ours your bike in the distance y in miles that you travel

Answers

Please don't just copy and paste or click an answer! PLEASE READ! I spend 14 minutes and I at least want you to read it!

11.2 * 1.4 = 15.68

Mark me brainliest if you can!

Use the table below to answer the question.

Price Quantity Supplied of T-shirts Quantity Demanded of T-shirts
$5
0
300
$10
100
100
$25
300
50
$50
400
0
At the highest price of $50, producers supply _____ T-shirts and consumers demand _____T-shirts.

100, 100
0, 300
400, 0

Answers

Answer: 400,0

Step-by-step explanation:

I just took this on Ody

What is the scientific notation of 0.00802

Answers

Answer:

8.02 × 10-³

Step-by-step explanation:

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

Answers

Answer:

X=1 = i√19        Put a vertical line through the second = sign

Step-by-step explanation:

when writing this .....put a line under all the + signs 0k and / is divided by 2

2 + √4-4(1)(20)

2 + √4-80 /2

x=2 +√76/2

x=2 +2i√19    the twos cancel out

1 +i√19

Which of these is an example of driving at an average rate of 20 miles per hour?
driving 10 miles in 2 hours
O driving 25 miles in 5 hours
O driving 15 miles in 5 hours
driving 40 miles in 2 hours

Answers

Answer:

driving 40 miles in 2 hours

One of the objectives for this lesson is to find the length of a curve using the z score.

True
False​

Answers

Answer:

true

Step-by-step explanation:

Subtracting Fractions with Unlike Denominators
5/6 - 2/3 =



4/6

1/2 - 1/3 =


0/16

7/8 - 1/4 =


2/8

11/12 - 2/3 =


4/12

3/4 - 2/3 =


1/12

5/8 - 1/2 =


5/8 - 4/8 =


1 - 2/3 =



5/8 - 1/5 =



5/9 - 1/4 =


1/3 - 1/7 =



4/5 - 3/7

Answers

Answer:

5/6-2/3=1/6

Step-by-step explanation:

You make the denominators the same. Like 5/6 and 2/3 you can make the fractions have the same denominator.

5/6-2/3 is the same as the equation 5/6-4/6 but simplified.

A minor league baseball team has a member’s club. It costs $30 to join and $3 per ticket. Non-members pay $6 per ticket. How many tickets will it take for the cost to be the same?

Answers

Answer:

2 tickets

Step-by-step explanation:

because if a no member ticket is 6 dollars than than two 3 dollar tickets will equal 6 dollars

Jeff modeled the number of minutes that he read each day during the first week of the summer. The recursive function, f(x), can be used to determine the number of minutes that he had read after a certain number of days, where x represents the number of days. f(1) = 28 f(x) = f(x - 1) + 8 Use the recursive function to find the number of minutes that Jeff read after 3 days of summer.​

Answers

9514 1404 393

Answer:

  44 minutes

Step-by-step explanation:

We are given f(1) = 28.

Using the recursive formula ...

  f(2) = f(1) +8 = 28 +8 = 36

  f(3) = f(2) +8 = 36 +8 = 44

Jeff read 44 minutes after 3 days of summer.

(a) Find the Total profit function P(q).
(b) Find the first and second derivatives for P(q).
(c) Find the optimum production quantity to maximize profit.

Answers

Answer:

answer is c Find the optimum production quantity maximize profit

Put these fractions in order of size, smallest to largest.
7/10
2/3
4/5
11/15

Answers

Answer:

11/15 7/10 4/5 2/3

Step-by-step explanation:

the bigger the fraction the smaller the number

What is 9 times 9
It’s so hard

Answers

9x9 is 81 and yes its very hard haha
If you’re having trouble with your nines times table use the finger trick. But it only works for 9x1-9-10 so hold up your hands in front of you and your palms facing towards you. Since you’re using 9x9 put your ninth finger down and the amount of fingers on your left would be the amount of tens so their would be 8 tens meaning 80 and the amount of fingers on the right side of the finger that is down would be the ones so there is one finger on the right. After that, you can just add them up. 80+1= 81 if you need another example just comment on this and say if you’re confused.:)

If you have 54/4 how does it equal 13.5

Answers

Simplifying
54 * 4 = 13.5

Multiply 54 * 4
216 = 13.5

Solving
216 = 13.5

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

Answer:

I don't like mathematics

Please help me thank you I appreciate it

Answers

Answer:

73

Step-by-step explanation:

since it's a right angle it equals 90° and you already know there 17°. so you just subtract 90-17

an amusement park sold 46 child tickets. The other 4 tickets it sold were adult tickets. What is the ratio of the number of adult tickets to the number of child tickets? Select all correct ratios

Answers

Answer:

2:46

1:23

Step-by-step explanation:

The sum of three consecutive even numbers is 228. What is the 3rd number?

Answers

Answer:

74 , 76 , 78

Step-by-step explanation:

Let the first of your number be x, As you are only looking at even integers, the next consecutive even integer would be x+2 and the consecutive even integer after that would be x+4. The sum of these three even integers results in 228 so we can say that:

[tex]First\ even\ number\ + Second\ even\ number\ + Third\ even\ number\ =228 \\\\x+(x+2)+(x+4)=228[/tex]

[tex]x+x+2+x+4=228\\3x+6=228\\3x=228-6\\3x=222\\x=222/3\\x=74\\[/tex]

so the first even number is 74 then the second consecutive even number is 76 then the third consecutive even number is 78

Is 413.25 a whole number

Answers

Answer:

No

Step-by-step explanation:

Whole numbers do not have decimals

No. Any integer with a decimal and numbers that aren’t 0 after it is not a whole number. 6.0 is a whole number but 6.73 is not.

Create the f(x) function based on the table. Answer should be in function notation

Answers

Answer:

It will be

f(x)=x+4

What's the right answer please

Answers

Answer:

2

Step-by-step explanation:

a>0 is maximum value of f

Find the equation of the tangent line to the function f(x) = 3x3 - x + 2 at a =0

Answers

Answer:

y=(9a^2-1)x-6a^3+2

Step-by-step explanation:

Determine the quotient of 1 and 2 over 3 divided by 4 over 5 . (2 points)

1 and 1 over 3
1 and 8 over 15
2 and 1 over 12
2 and 5 over 6

Answers

Answer:

2 and 1 over 12

Step-by-step explanation:

[tex]1 \frac{2}{3} \div \frac{4}{5} \\ \\ = \frac{1 \times 3 + 2}{3} \div \frac{4}{5} \\ \\ = \frac{5}{3} \times \frac{5}{4} \\ \\ = \frac{25}{12} \\ \\ = 2 \frac{1}{12} \\ [/tex]

Kendra has an unlimited supply of unbreakable sticks of length 2, 4 and 6 inches. Using these sticks, how many non-congruent triangles can she make if each side is made with a whole stick

Answers

Answer:

Unlimited number of triangles.

Step-by-step explanation:

Unlimited number of triangles can be made because Kendra has unlimited supply of unbreakable sticks. If she has limited number of sticks suppose 90 sticks so she can be able to made 30 non-congruent triangles from these number of sticks so if the number is not known so we are unable to say about the number of triangles should be made from unlimited unbreakable sticks.

albexa ko nepali aartha​

Answers

Answer:

what does this mean

Step-by-step explanation:

is this in another language?

4x−2​(x−4​)=−3+4x+5 please I need help

Answers

Answer:

x=3

Step-by-step explanation:

4x−2(x−4)=−3+4x+5

4x+(−2)(x)+(−2)(−4)=−3+4x+5

4x+−2x+8=−3+4x+5

(4x+−2x)+(8)=(4x)+(−3+5)

2x+8=4x+2

2x+8−4x=4x+2−4x

−2x+8=2

−2x+8−8=2−8

−2x=−6

−2x /−2 = −6 /−2

x=3

X is 3................

to compound 50% solution in which proportion must 95% sol and 30% sol be mixed to make
500 ml

Answers

Answer:

4/9

Step-by-step explanation:

Let the amount of 95% sol = a ml and

the amount of 30% sol = b ml.

So, the total amount of the compound=a+b=500 ml

As the compound is 50% solution, so

95% of a + 30% of b= 50% of (a+b)

(95/100)a+(30/100)b=(50/100)(a+b) [from equation (i)]

95a + 30b = 50(a+b)

95(a/b)+30 = 50(a+b)/b [dividing both sides by b]

95(a/b)+30 = 50(a/b+1)

95(a/b)+30 = 50(a/b)+50

95(a/b)-50(a/b)=50-30

45(a/b)=20

a/b=20/45

a/b=4/9

Therefore, a:b=4:9

As a+b= 500 ml, so the amount of 95% sol = [tex]\frac {500}{13}\times 4=\frac{2000}{13}=153.85[/tex] ml

and the amount of 95% sol = [tex]\frac {500}{13}\times 9=\frac{4500}{13}=346.15[/tex] ml

Hence, the proportion of 95% sol and 30% sol to make a compound of 50% sol must be 4/9.

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