Assume that the mean length of a human pregnancy is 269 days. If​ 95% of all human pregnancies last between 249 and 289 ​days, what is the standard deviation of the distribution of lengths of human​ pregnancies? What percent of human pregnancies are expected to last at least 287 ​days?

Answers

Answer 1

Answer:93% not sure

Step-by-step explanation:


Related Questions

HELLLLPPPP MMEEEEEEEEEEEEEEE AHHHHHHH
#3 An art-supply store sells a pad of watercolor paper after a 78% markup. If the store sells the paper for $46.99, what is the wholesale price? *

Answers

I messed up so how do I erase my answer omg sorry ....

10.29 is the original price attached is my work

he first five multiples for the numbers 4 and 6 are shown below.

Multiples of 4: 4, 8, 12, 16, 20, . . .
Multiples of 6: 6, 12, 18, 24, 30, . . .

What is the least common multiple of 4 and 6?
2
4
12
24

Answers

Answer:

12

Step-by-step explanation:

Answer: 12

Step-by-step explanation:

Which ordered pair is part of the solution set of the inequality 5-y5-3x? Oa (3,-5) Ob. (-3,-5) Oc. (2,-1) Od (-2,-1)​

Answers

Answer:

ob

Step-by-step explanation:

What is greater 1.036 1.306

Answers

Answer:

1.306

Step-by-step explanation:

1.3 is bigger than

1.03

Answer:

1.306 is greater

Step-by-step explanation:

In the ones place, the number one is equal for both numbers, so you move to the next number in the tenth place, which is .0 and .3 Three is greater than zero, which makes 1.306 greater than 1.036.

HELP PLS FOR 10 POINTS AND BRAINLIEST TO CORRECT ANSWER The cost, C, to ride in a taxi can be calculated using the function shown, where m is the number of miles.
C = 2.25 +0.85m
What is the cost per mile to ride in the taxi?

A. $0.85
B. $1.40
C. $2.25
D. $3.10

Answers

9514 1404 393

Answer:

  A.  $0.85

Step-by-step explanation:

Each time m increases by 1, the cost goes up by $0.85.

The cost per mile is $0.85.

Write the slope intercept form of the equation. PLEASE HELP

Answers

Answer:

8. D

10. D

12. B

if the lines are parallel, then the slopes are the same. if it's a perpendicular line then the slope is the opposite reciprocal.

pls help Select the correct answer.
If and , which description represents the graph of function g?

Answers

YOu got the right answer!! good job for you! keep up the good work! plz mark me the brainliest PLZZ!!!!!

Answer:

hey you got it

Step-by-step explanation:

its b

Which of the following graphs could be the graph of the function f(x)+-0.08x(x2-11x+18)

Answers

Answer:

option 3, c.

Step-by-step explanation:

Answer:

Its C on ed

Step-by-step explanation:

Subtract 8 from me. Then add 21. If you divide me by 4 and add 21 you get 29. What number am I?

Answers

Answer:

19

Step-by-step explanation:

x - 8 + 21 ÷ 4 + 21 = 29

x - 8 + 21 ÷ 4 = 29 - 21

                     = 8

x - 8 + 21 = 8 x 4

              = 32

x - 8 = 32 - 21

       = 11

x = 11 + 8

  = 19

Therefore the number is 19. A bit confusing to me at first but I solved it :)

¿Cómo se resuelve este problema? Con explicacion por favor.
El problema esta en el archivo

Answers

Answer:

?

Step-by-step explanation:


Claim: Fewer than 92% of adults have a cell phone. In a reputable poll of 1207 adults, 85% said that they have a cell phone. Find the value of the test statistic,
Round to two decimal places as needed

Answers

Answer:

- 6.547

Step-by-step explanation:

Given that:

Sample size (n) = 1207

p = 0.85

p0 = 0.92

The test statistic :

Z = (p - p0) / √(p0(1 - p0) / n)

Z = (0.85 - 0.92) / √(0.92(1 - 0.85) / 1207)

Z = - 0.07 / √(0.92(0.15) / 1207)

Z = - 0.07 / √0.0001143

Z = - 0.07 / 0.0106926

Z = - 6.5465446

Z = - 6.547

URGENT. Find f(3) if
f(x)=x^3 + 2x^2-x-1

Answers

Answer:

41

Step-by-step explanation:

Jus replace x with 3 and put it in a calculator.

The answer is 41 because x = 3

Please help! Find X:
5

31

10

60

Answers

Answer:

x=10

Step-by-step explanation:

What is the range?
-3 -8 -5 0 1 -2 -5 4 6

Answers

Answer:

14

Step-by-step explanation:

Range = Maximum value - minimum value

          = 6 - (-8)

          = 6 + 8

           =  14

Answer:

8- -5 -3 -2 0 1 4 6

Please I need some answers

Answers

Answer:

prime: 17 47 67

Composite: 25 48 99 161 171

25: 1,5,25

48: 1,2,4,6,8,12,24,48

99: 1, 3, 9, 11, 33, 99

161: 1, 7, 23, 16

171: 1,3,9,19,57,171,

And can i please get brainliest and have a good day

what is 2 x 8 x 10987

Answers

Answer:

175792

Step-by-step explanation:

8 x 2 = 16

16 x 10987 = 175792

How many groups of 5 are in the product of 523 and 45

Answers

there are 104.6 and 9 groups of 5 in 523 and 45

Shana bought 6.2 pounds of pecans and paid $56.00. About how much per pound did the pecans cost?
$5.00
$6.00
$8.00
$10.00

Answers

Answer: $10.00
Explanation: round 6.2 down to 6, and round $56.00 up to $60.00 and then see which answer choice fits. 10 multiplied by 6 is 60 which would mean about 1 pound of pecans costs $10.00

Answer:

The correct answer is D

Please help me with your the question attached below. Please show work I would like to learn this.

THANK YOU!

Answers

Answer: m∠5 = m∠7 = 67°

because a//b => m∠4 + m∠5 = 180°

⇔ 113° + m∠5 = 180°

⇔ m∠5 = 180 - 113 = 67°

because ∠5 and ∠7 are  2 opposing angles

=>  m∠5 = m∠7 = 67°

Step-by-step explanation:

Answer:

m ∠5 = 67°m ∠7 =  67°

Step-by-step explanation:

Givena║b, m ∠ 113To findm ∠5, m ∠7Solution

Angles 4 and 5 are same side interior angles and their measures add up to 180° as per definition:

m ∠ 4 + m ∠5 = 180°m ∠5 = 180 ° - m ∠4 m ∠5 = 180° - 113° = 67°

Angles 5 and 7 are vertical angles and they have equal measure as per definition of vertical angles:

m ∠7 = m ∠5 = 67°

A robot can complete 7 tasks in 5/6 hour. Each tasks takes the same amount of time. A. How long does it take the robot to complete one tasks? B. How many tasks can the robot complete in 1 hour?

Answers

Step-by-step explanation:

5/6 = 50 minutes

50 divided by 7 = (your answer)

Helppppppppppppppppppppppppppppppppppppo

Answers

Answer:it’s prob less than seven btw

Step-by-step explanation:

Answer:

-35 is your answer.

Step-by-step explanation:

...... .....

What is the greatest place value in this number, 189?​

Answers

Answer:

the 1 cause it's a 100

Step-by-step explanation:

100 + 80 + 9

A home improvement store advertises 60 square feet of flooring for $287.00 including an $80.00 installation fee. How much does each square foot of flooring cost?
50 POINTS *GIVEING BRAINLIEST*

Answers

60 square feet= $287.00 + $80.00

                       = $367

1 square feet= $367 / 60

                     = $6.116666667

                     = $6.12 (to 2dp) ( answer)

Answer:

60 square feet for 287 = 287/60 = 4.78 per square foot

so ur equation would be : y = 4.78x + 80

Step-by-step explanation:

Select all of the possible side lengths for the third side of a triangle if the first two
sides have lengths of 15 in. and 10 in.
9 in
5 in
27 in
3 in
21 in
13 in
12 in
25 in
Next

Answers

Answer:

9, 12, 13, 21

Step-by-step explanation:

let x be the third side, then

difference of 2 given sides < x < sum of 2 given sides , that is

15 - 10 < x < 15 + 10

5 < x < 25

The possible side lengths for the third side from the given list are

9, 12, 13, 21

-k +3 Can u help, please

Answers

Answer:

-k3 is the answer or somebody help me also

Which set could represent P?

Answers

2 should be the correct answer

2. The cost of a computer has been discounted by $239, so that the sale price is $1230.
Find the original price of the computer, c, by solving the equation: C – 239 = 1230

Answers

Answer:

5 dolla footlong

Step-by-step explanation:

What is the value of x

Answers

The value of x is 28
Answer :28
Explanation:
As we know that the horizontal lines are parallel, then we know that :
4x+4x+2x+12+2x+12=360
12x+24=360
12x=336
x=28

I know how to do these,but I’m pressing time and I’m at work so someone just help me out. You are appreciated.

Answers

Mean: 22

Median: 22

Range: 14

Midrange: 22

Answer:

the first one is correct

Step-by-step explanation:

i hope u give me a brainilest

There are 40 students in the class. If 10% are absent on Friday, what is the number of students present in the class?

Answers

Answer:

36

Step-by-step explanation:

if 10% are absent the other 90% are present

40 students represent 100%

? students represent 90%

?=40*90/100=36 students

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