John drives to work each morning and the trip takes an average of µ = 38 minutes. the distribution of driving times is approximately normal with a standard deviation of σ = 5 minutes. for a randomly selected morning, what is the probability that john's drive to work will take between 36 and 40 minutes?​

Answers

Answer 1
The Answer to this is 0.2743

Related Questions

What is the reflection image of R across the y-axis?

(3, 2)

(–2, 0)

(0, 2)

(–3, –2)


Answers

reflection image of R across the y-axis is (3,2)
answer
(3, 2)

Answer: (3,2)

Step-by-step explanation:

From the given picture , it is given that the point R = (-3,2)

We know that the rule of reflection across y axis is :

[tex](x,y)\rightarrow\ (-x,y)[/tex] i.e.the polarity of x coorinate changes.

Therefore, the reflection image of R across the y-axis will be :-

[tex](-3,2)\rightarrow\ (3,2)[/tex]

Hence, the reflection image of R across the y-axis =(3,2)

You received 1⁄3 pound of candy from your grandmother, 1⁄2 pound of candy from your sister, but your best friend ate 1⁄5 pound of candy. How much candy do you have left?

Answers

1/3 + 1/2  = 2/6 + 3/6 = 5/6

5/6 - 1/5 = 25/30 - 6/30 = 19/30 pounds left

a store buys a baseball cap for $5 and sells it for $20. what is the profit

Answers

the answer is $15
20-5

Marina walks from the police station at (-10, -4) to her friend Marissa’s house at (3, -8). She stops half way at a fast food restaurant to buy a soda. What are the coordinates where she stops?

Answers

[tex]\bf \textit{middle point of 2 points }\\ \quad \\ \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) &({{ -10}}\quad ,&{{ -4}})\quad % (c,d) &({{ 3}}\quad ,&{{ -8}}) \end{array}\qquad % coordinates of midpoint \left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right) \\\\\\ \left( \cfrac{3-10}{2}~~,~~\cfrac{-8-4}{2} \right)[/tex]

If µ = 400 and s = 100 the probability of selecting at random a score less than or equal to 370 equals ____.

Answers

The probability of selecting at random a score less than or equal to 370 is approximately 0.3821.

To find the probability of selecting at random a score less than or equal to 370 from a normal distribution with a mean [tex](\( \mu \))[/tex] of 400 and a standard deviation [tex](\( s \))[/tex] of 100, we can use the z-score formula and the standard normal distribution table.

The z-score formula is given by:

[tex]\[ z = \frac{x - \mu}{s} \][/tex]

Where:

- x is the value of the random variable (370 in this case)

- [tex]\( \mu \)[/tex] is the mean (400)

- s is the standard deviation (100)

Substituting the given values into the formula:

[tex]\[ z = \frac{370 - 400}{100} = -0.3 \][/tex]

Now, we look up the probability corresponding to z = -0.3 in the standard normal distribution table. The probability of selecting a score less than or equal to 370 is the cumulative probability up to z = -0.3.

From the standard normal distribution table, the cumulative probability corresponding to z = -0.3 is approximately 0.3821.

Therefore, the probability of selecting at random a score less than or equal to 370 is approximately 0.3821.

Evaluate 11x -4 when x = -4

Answers

Just replace x=-4 in the equation

11x - 4, x = -4

11(-4) - 4 = -44 - 4 = -48

Hope it helped!
substitute -4 for x
11x-4=-44

Find 10-3 write the substraction fact two ways

Answers

10-7
13-7
 the substraction fact two ways.
There is 10 - 3 = 7

And 10 + (-3) = 7

another way to write (3x1000)+(3x10)+(3x1/100)+(3x1/1000)

Answers

That'd be 3000 + 30 + 0.03 + 0.003, or 3030.033

Expression after the simplification is 3030.033.

What is an expression?

Expression in mathematics is the combination of variables with the use of operations and predetermined rules. It could appear as an equation, a set of numbers, etc.

Given, expression

(3x1000)+(3x10)+(3x1/100)+(3x1/1000)

Simplifying,

(3x1000)+(3x10)+(3x1/100)+(3x1/1000)

= 3000 + 30  + 3/100 + 3/1000

= 3030033 / 1000

or, = 3030.033

Hence, the value of the expression is 3030.033.

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Typographic errors in a text are either nonword errors (as when "the" is typed as "teh") or word errors that result in a real but incorrect word. Spell-checking software will catch nonword errors but not word errors. Human proofreaders catch 70% of word errors. You ask a fellow student to proofread an essay in which you have deliberately made 10 word errors. What is the smallest number of misses m with P(X ≥ m) no larger than 0.05? You might consider m or more misses as evidence that a proofreader actually catches fewer than 70% of word errors.

Answers

The probability that a proofreader who catches 70% of the word errors misses exactly 7 out of 10 will be 0.3504.

How to calculate the probability?

It should be noted that this is a binomial distribution.

From the information given, the human proofreaders catch 70% of word errors and a student was asked to proofread an essay in which you have deliberately made 10 word errors.

Here, n = 10

p = 0.3,

q = 1 - 0.3 = 0.7.

The probability will be:

= 1 - (10C0 × 0.3ⁿ × 0.7^10 + 10C1 × 0.3 × 0.7^9 + 10C2 × 0.3² × 0.7^8 + 10C3 × 0.3³ × 0.7^7)

= 1 - 0.6496

= 0.3504

In conclusion, the probability is 0.3504.

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Which quantity is proportional to 15⁄3?

Answers

Porportional to 15/3 is 5/1 which would then equal 5

The answer is 5 because 15/3=5


find value of m=30 and n=18. m-n÷3=8

Answers

when m = 30

30 - n/3 = 8

-n/3 = -22
-n = -66
n = 66


when n = 18

m-18/3 = 8
m - 6 = 8
m = 8 + 6
m = 14

hope this helps

How many binary digits does it take to represent the decimal number 2013?

Answers

2^10  = 1024  and 2013 - 1024 = 989

So there will be  10 + 1 = 11 digits Answer

It takes 11 binary digits to represent the decimal number 2013. Decimals are numbers that have two parts: a whole number part and a fractional part separated by a decimal point.

What is meant by decimal number?A decimal is a number with a whole and a fractional part. Decimal numbers are between integers and represent numerical value for whole plus some fraction of a whole. Decimals are numbers that have two parts: a whole number part and a fractional part separated by a decimal point. 12.5 is a decimal number, for example. (12)10 and (300)10 are two examples of decimal numbers. Thus, we can say that the Decimal Number System is the number system that uses the numbers 0 to 9 and has a base of 10, and each digit in this system has a power value of 10.

Therefore, the correct option is C) 11

The complete question is:

How many binary digits does it take to represent the decimal number 2013?

a) 16

b) 8

c) 11

d) 2013

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How did the forces of liberalism and nationalism affect events in the united states during the 1800s?

Answers

Liberalism lead to the Civil war because liberals believe everyone is born free, and nationalism united the Us make it one nation, indivisible

HECTOR PLANTED 185 FLOWERS IN 2 DAYS THERE WERE 5 VOLUNTEERS INCLUDING HECTOR WHO EACH PLANTED ABOUT THE SAME NUMBER OF FLOWERS ABOUT HOW MANY FLOWERS DID THEY PLANT

Answers

The answer is very simple each had planted 37 flowers

A square sheet of art paper has an area of 625 square inches. What is the minimum side length of an easel that supports the whole sheet of paper?

Answers

If the area of the paper is 625 sq in, the length of one side of this square is sqrt(625 sq in), or 25 inches.  That's the min. side length of an easel that is to support the whole sheet of paper along its lowest side.

area of a square = side^2

 to find the length of a side using area find the square root of the area

sqrt(625) = 25

so the easel has to be at least 25 inches

what is 62 1/2% converted as a fraction

Answers

It is 5/8, 62 1/2% is equivalent to 0.625, which is equivalent to 625/1,000. If you simplify 625/1,000, you get 5/8.
5/8 because you turn it to a decimal which is 0.625 then a fraction and simplify

Of all numbers whose difference is 4​, find the two that have the minimum product.

Answers

Of all numbers whose difference is 4​, find the two that have the minimum product. 2 x2=4


The two numbers whose difference is 4 will be +2 and -2. The two have the minimum product is -4.

What is the number?

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that, there are two numbers whose difference is 4​ and it must have a minimum product.

We have to apply arithmetic operation operations in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.

Suppose one number is x and the other x−4.

The minimum product is,

=x(x−4)

=x²−4x

Differentiate both sides to obtain minimum value,

=2x-4

2x=4

x=2

The other number is,

=x−4

=2-4

=-2

Thus, the two numbers whose difference is 4 will be +2 and -2. The two have the minimum product is -4.

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how to turn negative mixed fraction into decimal

Answers

first off, if it's mixed, you'd want to convert it to "improper" first, and then do the division... say hmm - 3 and 1/7

[tex]\bf \stackrel{mixed}{-3\frac{1}{7}}\implies -\cfrac{3\cdot 7+1}{7}\implies \stackrel{improper} {-\cfrac{22}{7}}\implies -22\div 7\implies -3.\overline{142857}[/tex]

the line over the decimal part is because is a "recurrent decimal", or repeating one.

Jared used one whole number 2/5 of soil for his garden. He is digging another garden that will need 1/5 as much soil as the original. How much will he use total.

Answers

Assuming "one whole number 2/5 of soil for his garden" mean 1+2/5(equal to 7/5) then 1/5 of the original garden soil would be:
1/5 * 7/5 = 7/25

Then you need to add the first sum(7/5) with the second sum(7/25) to get the total soil. The calculation would look like this:
7/5 + 7/25= 35/25 + 7/25= 42/25= 1 + 17/25

Kevin has three fourths yard of string he uses one third for a school project how many yards of string did he use on the project

                                                  _______
hint the answer is not 1/3 or 33.33333333%

Answers

3/4-1/3. Do that and tell me when your done

3/4 yard,

 he used 1/3

3/4 * 1/3 = 3/12 = 1/4

 he used 1/4 yard

A 25-foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a 65∘ angle with a short vertical support.

Answers

The Answer is x=29.6 feet

If you work 37.5 hours per week at $10.65 per hour, how much is your gross pay for a two-week period? (Round off your answer to the nearest cent.)

Answers

it is 798.75 without rounding off the nearest cent.

The observations you made in the unit circle can help you determine the x‑ and y‑coordinates of special points on the circle without memorizing the circle. Analyze some of the patterns by completing the parts below.
a. Look at all the ordered pairs whose angles are of the form k pi/4, where k is an integer. What do you notice?
b.Now look at the ordered pairs whose angles are of the form k pi/6 or k pi/3. What do you notice about their coordinates?
c.How can you determine if the coordinates of a point are positive or negative?

Answers

a. Look at all the ordered pairs whose angles are of the form k pi/4, where k is an integer. What do you notice?          These ordered pairs would be found along the lines that make 45 deg, 135 deg, 225 deg and 270 deg angles as measured from the positive x-axis.  Every such line is made up of an infinite number of dots representing such pairs.  And the x- and y-components of these pairs would be equal in magnitude (but could have different signs).

Monday’s high temperature was 5 degrees warmer than Sunday high temperature.tuesdays high temperature was eight degrees colder than Monday high temperature. How does Sunday’s high temperature compare to tuesdays

Answers

Sunday's high temp was 3 degrees warmer than Tuesdays

Answer: It means the high temperature of Sunday is 3 degrees warmer than the high temperature of Tuesday.

Step-by-step explanation:

Let the temperature on Sunday be 'x'.

So, Temperature of Monday would be

[tex]x+5[/tex]

Temperature of Tuesday would be

[tex]x+5-8\\=x-3[/tex]

So, Comparing the  Sunday's high temperature to Tuesday's temperature.

[tex]x-3[/tex]

It means the high temperature of Sunday is 3 degrees warmer than the high temperature of Tuesday.

You want to place a towel bar that is 10 1⁄4 inches long in the center of a door that is 26 1⁄3 inches wide. How far should you place the bar from each edge of the door?

Answers

bar is 10 1/4" so center would be  10 1/4 / 2 = 5 1/8"

door is 26 1/3" so center would be 26 1/3 / 2 =13 1/6

13 1/6 - 5 1/8 = 8 1/24 inches from the edge

How do I find Primefactor of 150

Answers

150

2  75

     3  25 

          5  5  
           
                5  1


2 * 3 * 5* 5
A prime factor is a factor that cannot be factored further.

Starting with 150, determine some of the factors:  150 = 15(10)

Continue:   3     5       2      5      = {2, 3, 5}  None of these can be factored, so the prime factors of 150 are {2, 3, 5}.   Of course, you could include 1 as a prime factor, in which case the prime factor list would be {1, 2, 3, 5}.

What is the slope given the equation, y = 2x

a) 1

b) 12

c) 2

d) x'

Answers

Hello there!

We need to use the slope intercept form to find the slope.
Keep in mind that the slope intercept is an equation of the form Y = mx + b, where m is the slope and b is the y-intercept.

So we have y = 2x
They say that the m is the slope. So in this equation, the m is 2. Right?

So for that reason, the answer is option C

Good luck with your studies!

What is a polynomial with a single root at x = -8 and a double root at x = -2?

Answers

Sent a picture of the solution to the problem (s).

The polynomial equation will be x³ +12x² +36x+32 =0

What are the roots of a polynomial Equation ?

The roots of a polynomial equation is the value at which it will satisfy the quadratic equation , i.e. function (x) = 0 at the root .

It is given that x = -8 is a single root and

x = -2 is double root

x+8 = 0

(x+2 )(x+2)=0   (double root)

The polynomial equation will be

(x+8)(x+2 )(x+2 )=0

(x+8)( x² +4+4x) = 0

x³ +4x+4x²+8x²+32+32x = 0

x³ +12x² +36x+32 =0

Therefore the polynomial equation will be x³ +12x² +36x+32 =0

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What is (f * g * h)(x) Refer the the image below.

Answers

[tex]\bf \begin{cases} f(x)=\sqrt{x+7}\\ g(x)=4x\\ h(x)=x^2\\ (f\circ g\circ h)(x)=f(~~g(~~h(x)~~)~~) \end{cases}\\\\ -------------------------------\\\\ g(~~h(x)~~)=4\boxed{h(x)}\implies g(~~h(x)~~)=4\boxed{x^2} \\\\\\ f(~~g(~~h(x)~~)~~)=\sqrt{\boxed{g(~~h(x)~~)}+7} \\\\\\ f(~~g(~~h(x)~~)~~)=\sqrt{\boxed{4x^2}+7}[/tex]

56of the 90pets in the pet show are cats 4/5of the cats are calico cats. What fraction of the pets are calico cats?

Answers

To get the answer, we can divide 56 by 5 to find one fifth of the cats. Then, we can multiply this number to get four fifths of the cats. Then, we put this number over 90 since there is 90 pets in the entire show. Then, this answer ends up being about half all of the pets are calicos.
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