1The lengths of pregnancies are normally distributed with a mean of 271 days and a standard
deviation of 20 days. If 64 women are randomly selected, find the probability that they have a mean
pregnancy between 271 days and 273 days.
A) 0.2881
B) 0.5517
C) 0.2119
D) 0.7881

Answers

Answer 1

[tex]probablity = \frac{271}{273} \\ = 0.99267399267[/tex]


Related Questions

Find the perimeter. Simplify the answer.

Answers

Answer:

21u-26

Remember to add like terms

5 900 rounded to the nearest thousand

Answers

Answer:

6000

Step-by-step explanation:

9>5 so round up

6000

What are the zero(s) of the function f(x) = 4x^2 - 36x/ x - 9

A) x= -9
B) x=0
C) x=9
D) x = 0 and x = 9

Answers

To find -intercept/zero, substitute
So
0=4x^2-36x / 9-x
Now x should be #9 bcz 9-9=0
So
0=4x x(x-9)/x-9
0=4x
X=0

Can you solve for x plz?

Answers

Answer:

x=25

Step-by-step explanation:

4x+50=150

4x=100

x=25

How to draw on the graph
y=3x
y=x-6

I need it as soon as possible plz

Answers

Answer:

I believe the graphing should look like this.

Step-by-step explanation:

Explain why 4:6 and 8: 10 are not
equivalent ratios.

Answers

Answer:

Because when 4:6 is simplified, you get 2:3, but when 8:10 is simplified, you get 4:5

So, they are not equivalent ratios because their simplified ratios are not the same.

Step-by-step explanation:

Hope this is helpful.

Since the value of the given ratios are different they can not be said to be the equivalent ratio.

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

It is given that the two ratios are 4:6 and 8: 10.

Ratios with the same value are said to be equivalent. If we multiply both portions of a ratio by the same number, we can create comparable ratios.

The ratio 4/6 is in the lowest term is 2/3 equal to 0.66

The ratio 8/10 is in the lowest term is 4/5 equal to 0.8

The values of both ratios are different.

Thus, the values of the given ratios are different they can not be said to be the equivalent ratio.

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ2

Write the expression using exponents.

3 × 3 × 3 × 3

A. 33
B. 34
C. 43
D. 35

Answers

Answer:

B

Step-by-step explanation:

need help asap MIDSEGMENTS
will give BRAINLIEST

Answers

Answer:

ggggggggggggggggggggggggggggggg

5 sin^2 x = sin x
please help.

Answers

[tex]\\ \sf\longmapsto 5sin^2x=sinx[/tex]

Divide both sides by sin x

[tex]\\ \sf\longmapsto \dfrac{5sin^2x}{sinx}=\dfrac{sinx}{sinx}[/tex]

[tex]\\ \sf\longmapsto 5sinx=1[/tex]

[tex]\\ \sf\longmapsto sinx=\dfrac{1}{5}[/tex]

[tex]\\ \sf\longmapsto sinx=0.2[/tex]

[tex]\\ \sf\longmapsto x=sin^{-1}(0.2)[/tex]

[tex]\\ \sf\longmapsto x=11.53[/tex]

What can you multiply by to find:

50% of a number?
10% of a number?
75% of a number?

Answers

Answer:

1. 50% of a number

0.5

2. 10% of a number

0.1

3. 75% of a number

0.75

Step-by-step explanation:

this is because a percentage is the same as a decimal or a fraction

so 50% is 0.5 or 50/100

taking 50% of something is the same as multiplying by 50% or 0.5 or 50/100

same with 10% and 75%

Shandra bought some belts online for $67. She used a coupon code to get a 20% discount. The website also applied a 5% processing fee to the price after the discount. How much was the discount, in dollars and cents?

Answers

Answer:

14.07

Step-by-step explanation:

First we need to add 5 percent to the 67 dollar cost. Which makes the price 70 dollars and 35 cents. 20 percent of 70.35 is 14.07 so the discount is 14.07

Hope this helps

Type the missing digit down below
63,927,_76 is divisible by 8.

Answers

Answer:

4

Step-by-step explanation:

Answer:

63,927,476 is divisible by 8.

Monique saved money to buy softball equipment. She used 1/4 of her savings to buy a bat. She used 2/3 of her savings to buy a glove. How much of her savings does Monique have left?

Answers

Answer:

she has 1/3 of her savings left

Step-by-step explanation:

Help? Find the exact value.

Answers

That’s the answer for the question

Which function represents a translation of the graph of v=x^2
by 10 units to the left?
O A. v=x^2+10
O B. v=(x+10)^2
O C. y=10x^2
O D, y=(x-10)^2

Answers

Answer:

B.

Step-by-step explanation:

That would be y = (x +10)^2.

Write 41. 287 to 1 decimal place​

Answers

41.3 is the answer to this question

How does this image help you understand why the French surrendered to the Prussians?

Answers

Answer:

It's hard.

Step-by-step explanation:

Answer:

Step-by-step explanation:

If you look carefully at the diagram, it looks like the French have no way out. The Prussians are on the outside perimeter and can always get supplies into their position. Since they are completely surrounded, the French do not enjoy that luxury.

Furthermore (and I'm guessing here) the Prussians probably outnumbered the French. Now it is possible to get around that problem, but not terribly likely if the numbers are really lopsided.

Help!!!! This is a triangle and I really don’t understand it :(

Answers

Answer: x is 3

Step-by-step explanation:

6x-5=4x+1

x = 3

There are mangoes and oranges in a basket in the ratio 7: 11. If the total number of fruits is 720, then how many mangoes are there in the basket?​

Answers

Answer:

280 mangoes

Step-by-step explanation:

sum the parts of the ratio, 7 + 11 = 18 parts

Divide the total by 18 to find the value of one part of the ratio.

720 ÷ 18 = 40 ← value of 1 part of the ratio , then

7 × 40 = 280 ← number of mangoes

Answer:293

Step-by-step explanation:

720-719= 1

1+292= 293

Mia is 7.04304 x 10 minutes old. Convert her age to more appropriate units using years, months, and
days. Assume a year has 365 days and a month has 30 days.
a
Mia is 13
years
months and
days old

Answers

Answer:13 years,1 month, and 29 days

Step-by-step explanation:

Why cant it sign me in at this time im to young or sum like im 11, sorry i just need help and quick i really think this is a rare app and it will make me fly through my work and plus i have a lot to do

Answers

Answer:

well if you managed to ask this question then you're signed in. but maybe next time you might wanna lie your age...

if marked price = 1,540 during the off season a discount was given and it was sold for 1,463. find the discount and the discount percent

Answers

Answer:

The discount is $77, and the discount percent is 5%

Step-by-step explanation:

Discount: $1,540 - $1,463 = $77

Discount percent: $1,463 / $1,540 = 0.95, 1.00 - 0.95 = 0.05, 0.05 = 5%

angle x and angle y are complementary angles. angle x is eight times larger than angle y. what are the measurements of angle x and angle y?

Answers

Answer:

x=80

y=10

Step-by-step explanation:

Which equation can be simplified to find the inverse of y = 2x2?

Answers

Answer:

d

Step-by-step explanation:

dddddddd

Answer: D

Step-by-step explanation:

EDGE 2023

A vector is in standard position, with its terminal point in the second quadrant and an x-coordinate of –5. The vector has a magnitude of StartRoot 61 EndRoot.Complete the statements describing the vector. The y-coordinate of the vector to the nearest tenth is . The direction angle to the nearest whole number is °.

Answers

a.

The y-coordinate of the vector with its terminal point in the second quadrant is 6.

The magnitude of the vector, r = √(x² + y²) where x = x-coorcinate of vector = -5 and y = y-coordinate of vector.

Since r = √61 and r = √(x² + y²)

Making y subject of the formula, we have

y = √(r² - x²)  

Substituting the values of the variables into the equation, we have

y = √((√61)² - (-5)²)  

y = √(61 - 25)  

y = ±√36

y = ±6

Since r is in the second quadrant, its y-coordinate is positive.

So, y = 6

So, the y-coordinate of the vector with its terminal point in the second quadrant is 6.

b.

The direction angle of the vector with its terminal point in the second quadrant is 130°

The direction angle of the vector is gotten from tanФ = y/x

Subsstituting x and y into the equation, we have

tanФ = y/x

tanФ = 6/-5

tanФ = -1.2

tan(180° - Ф) = 1.2

Taking inverse tan of both sides, we have

180° - Ф = tan⁻¹(1.2)

180° - Ф = 50.2°

Ф = 180° - 50.2°

Ф = 129.8°

Ф ≅ 130° to the neares whole number

The direction angle of the vector with its terminal point in the second quadrant is 130°.

Learn more about vectors here:

https://brainly.com/question/18478651

Answer:

first one is 6.0 and the second is 130

Step-by-step explanation:

Solve it by Substitution

no link or website a well download for the answer. please do step by step​

Answers

30 in each bus. 17 in each van

To solve this problem, we first have to create a system of equations. After that, you set the equations equal to each other, and use that to simplify and find the value of one variable. Once that is found that answer can be plugged into one of the two original equations to find the other variable.

What is a vector quantity ?

Answers

Answer:

Vector, in physics, a quantity that has both magnitude and direction.

Answer:

Vector in physics, a quantity that has both magnitude and direction.

IS CELL REPLICATION THE SAME THING AS DNA REPLICATION OR ARE THEY TWO SEPERATE THINGS

Answers

Answer:

See below:

Step-by-step explanation:

So, first of all, we know that Cell and DNA Replication are different just by looking at their names.

Cell Replication is to replicate cells and not DNA whereas DNA replication replicates DNA but not cells.

We do know that DNA resides inside Cells what we call eukaryotes.

So, in short, no, they are different things.

Cheers!

They’re connected but still different things. The cell cycle is the the process leading up to the cell actually dividing and the dna replication. So in the cell cycle, first you have the “resting phase” where the cell isn't dividing and is basically just kinda there. Then it goes into the interphase. First the cell grows (“Gap 1”) then synthesis happens which is where dna replication happens. Then the cell grows some more (“Gap 2”). Then the cell goes through mitosis which is where the cell stops growing and divides. Causing the cells to multiply. And DNA replication, which happens during synthesis. This is where a 2 pieces of identical dna are made from one dna molecule.

Find the area of the figure. All intersecting sides meet at right angles. a. 1,440 m2 c. 76 m2 b. 106 m2 d. 46 m2

Answers

answer:

C.76 m2

that all i know hope it helped to your modules

What is
2(3x + 4) = -28

Answers

Answer:

x= 10/3

or

x= 3.334

Depending on simplified form asked.

Step-by-step explanation:

6x +8 =28

subtract 8 from both sides

6x = 20

divide by 6

x=20 /6

x= 10/3 or x =3.334

if you like my answer, please mark me brainliest !! thanks !! <3

x = -6
2(3x + 4) =-28
divide both sides by 2
2(3x+4)/2 = -28/2
after dividing its 3x + 4 = -14
subtract 4 from both sides
3x + 4 - 4 = -14 - 4
after subtracting its 3x = -18
divide 3 from both sides
3x/3 = -18/3
x = -6
Hope it help
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