On the distant planet Cowabunga, the weights of cows have a normal distribution with a mean of 483 pounds and a standard deviation of 70 pounds. The cow transport truck holds 5 cows and can hold a maximum weight of 2840. If 5 cows are randomly selected from the very large herd to go on the truck, what is the probability their total weight will be over the maximum allowed of 2840

Answers

Answer 1

Answer: 0.0033

Step-by-step explanation:

Let x be a random variable that denotes the weights of cows.

Given: [tex]\mu = 483,\ \sigma=70[/tex]

maximum weight can be hold= 2840 pounds.

Mean weight = [tex]\frac{2840}{5}[/tex] = 568 pounds

The probability their total weight will be over the maximum allowed of 2840

= [tex]P(X>2840)[/tex]

[tex]P(\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}>\dfrac{568-483}{\dfrac{70}{\sqrt{5}}})\\\\=P(z>2.715)\\\\=1-P(z<2.715)\\\\=1-0.9967=0.0033[/tex]

Hence, the required probability = 0.0033


Related Questions

Clara solved the equation
7
3
x = −
2
3

Answers

Answer:

hope it is helpful to you

. If one of the zeroes of the quadratic polynomial (k-1) x2 +k x +1 is -3 then what is the value of k?

Answers

Answer:

k = 1¹/₃

Step-by-step explanation:

Comparing (k-1)x² + kx + 1 with ax + bx + c where α, β be the zeroes of the quadratic equation, then

α + β = -b/a = -k/(k - 1) and αβ = c/a = 1/(k - 1)

Since one of the zeros is -3, β = -3

So,

α + β = -k/(k - 1)

α + (-3) = -k/(k - 1)

α - 3 = -k/(k - 1)  (1)

and

αβ = 1/(k - 1)

-3α = 1/(k - 1)    (2)

From (1), α = 3 - k/(k - 1)  (3)

Substituting equation (3) into (2), we have

-3α = 1/(k - 1)

-3[3 - k/(k - 1)] = 1/(k - 1)

-9 + 3k/(k - 1) = 1/(k - 1)

-9 = 1/(k - 1) - 3k/(k - 1)

-9 = (1 - 3k)/(k - 1)

cross-multiplying, we have

-9(k - 1) = 1 - 3k

expanding the brackets, we have

-9k + 9 = 1 - 3k

collecting like terms, we have

-9k + 3k = 1 - 9

-6k = -8

dividing through by -6, we have

k = -8/-6

k = 4/3

k = 1¹/₃

A comet travels at an average speed of 233,000 km/h.
It takes 7 days for the comet to reach Earth.
Find the distance, in km, the comet travelled.

Answers

Answer:39144000

Step-by-step explanation:

Distance = speed x time

7 days = 168 hours

233000 x 168= 39144000

Please help thanks! Brainliest

Answers

The value of [tex] \:\frac{ - 9 + ( - 11)}{4} + 8\:[/tex] is [tex]3[/tex].

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]

[tex] \frac{ - 9 + ( - 11)}{4} + 8 \\ \\ = \frac{ - 9 - 11}{4} + 8 \\ \\ = \frac{ - 20}{4} + 8 \\ \\ = - 5 + 8 \\ \\ = 3[/tex]

Note:-

[tex]\sf\purple{BODMAS\: rule.}[/tex]

B = Brackets

O = Orders

D = Division

M = Multiplication

A = Addition

S = Subtraction

[tex]\sf\red{(+\:x\:-)\:=\:-}[/tex]

[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]

Yana though of a number she multlipied it by 8 subtracted 4 divided the result by 2 what number did yana think of

Answers

Complete Question

Yana though of a number she multiplied it by 8 subtracted 4 divided the result by 2, and got 30. What number did Yana think of

Answer:

[tex]x=8[/tex]

Step-by-step explanation:

From the question we are told that:

Thought of Number x

Multiplied it by 8

 [tex]x*8=8x[/tex]

Subtracted 4

 [tex]8x-4[/tex]

Divided the result by 2

 [tex]\frac{8x-4}{2}[/tex]

Generally the equation for x is mathematically given by

 [tex]\frac{8x-4}{2}=30[/tex]

 [tex]8x-4=60[/tex]

 [tex]8x=60+4[/tex]

 [tex]x=8[/tex]

the ratio of berries to oranges is 10:1
If they are 25 oranges how many berries are there?​

Answers

Answer:

250

Step-by-step explanation:

create a proportion based on 10 berries to every one orange:

let 'b' = # berries

10/1 = b/25

cross-multiply to get:

b = 10(25)

b = 250

Ricky has nine quarters, thirteen dimes, six nickels, and seven pennies. How much money does he have? WHOEVER ANSWERS THIS FIRST GETS BRAINLIEST

Answers

Step-by-step explanation:

3.92 - uwuehehrvgrsiehhehehhe

Answer:

He has $3.92.

Hope this helps!

What is the equation of the line that passes through the point (4, -2) and has a slope of -2???

Answers

Answer:

.

Step-by-step explanation:

Answer:

y=mx+c

Step-by-step explanation:

Write the equation of the line in the slope intercept form?

Answers

Answer:

the y intercept is 4

and frm that point to another spot on the line you go DOWN one unit (negative)

and two units to positive (to the right)  thus the slope is - 1 (down) and 2 positive to the right

-1/2 = slope

y = -1/2 + 4

Step-by-step explanation:

Solve x2 + 8x + 7 = 0 by completing the square. Which equation is used in the process?

Answers

Answer: x = -1, -7

Step-by-step explanation:

I used internet

Answer:

x = -1   or   x = -7

Step-by-step explanation:

x^2 + 8x + 7 = 0

x^2 + 8x + ____ = -7 + ____

To complete the square, we add the square of half of the x-term coefficient to both sides.

x-term coefficient: 8

half of it: 4

square it: 4^2 = 16

We add 16 to both sides.

x^2 + 8x + 16 = -7 + 16

(x + 4)^2 = 9

x + 4 = +/- sqrt(9)

x + 4 = 3   or   x + 4 = -3

x = -1   or   x = -7

The radius of a circle is 2 meters. What is the area of a sector bounded by a 135 degree arc? Give the exact answer in simplest form

Answers

Answer:

Area of circle bounded by a 135 ° arc is 4.71 m ²

Step-by-step explanation:

Given that :-

Radius of circle, r = 2 m

Angle of the circle , θ = 135 °

To Find :-

Area of circle bounded by a 135 ° arc.

Solution :-

Using Formula

Area of circle = θ/ 360 × π × r ²

substitute the values,

Area of circle = 135 /360 × 3.14 × ( 2 m) ²

solve it

Area = 27 / 72 × 3.14 × 4 m ²

Area = 27 / 18 × 3.14

Area = 1.5 × 3.14

Area = 4.71 m ²

Therefore, Area of circle bounded by a 135 ° arc is 4.71 m ²

Answer:

it's 3/2pi

Step-by-step explanation:

.

Tony runs to keep fit ,he wants to run a total of 20 km each week. Here are the distance tony ran last week 7.75km 5km 750m 61\2 km did tony run 20 km last week?

Answers

Answer:

yes

Step-by-step explanation:

Add all the distances ran last week

7.75

+

5km

+

0.75 (1000m = 1km) 750 / 1000 = 0.75km

+ 6.5

= 20 km

25=46-3
please help me​

Answers

Answer:

[tex]25 = 43[/tex]

Step-by-step explanation:

[tex]25 = 46 - 3[/tex]

[tex]25 = 43[/tex]

Hope it is helpful...

What is the simplest radical form of the expression?
(8x^7y^4)^2/3

Answers

Answer:

[tex]4x^4y^2\sqrt[3]{x^2y^2}[/tex]

Step-by-step explanation:

Recall that [tex]a^{(\frac{b}{c})}=\sqrt[c]{a^b}[/tex].

Therefore, we have:

[tex](8x^7y^4)^{\frac{2}{3}}=\sqrt[3]{(8x^7y^4)^2}[/tex]

Use the exponent property [tex](a^b)^c=a^{(b\cdot c)}[/tex] to simplify:

[tex](8x^7y^4)^{\frac{2}{3}}=\sqrt[3]{(8x^7y^4)^2}=\sqrt[3]{64x^{14}y^8}=\boxed{4x^4y^2\sqrt[3]{x^2y^2}}[/tex]

8 Emma noticed that the new admission fee for a zoo is 65% more than last year's fee. Iff
represents last year's fee, which of the following expressions represent the new admission
fee? Select all that apply.

Answers

Answer:

A and C

Step-by-step explanation:

Only A and C represent a 65% increase

1. What is the center and radius of the given circle (x – 3)² + (y + 8)² = 39?

Answers

Answer:

Center (3, -8), radius = [tex]\sqrt{39}[/tex]

Step-by-step explanation:

The Standard Form for the equation of a circle is

[tex](x-h)^2+(y-k)^2=r^2[/tex]

The center is the point (h, k) and the radius is r.

Match up the given equation with the standard form.

[tex](x-h)^2=(x-3)^2 \rightarrow h=3\\(y-k)^2=(y+8)^2 \rightarrow k=-8[/tex]

That last bit can be tricky, k = -8, not 8.  Watch the signs!

Help



Will


Give BRIANLIST

Answers

Answer:

area of the figure=length×width

=6(X+6)

=6x+36 sq feet

answer is the second option

Answer:

B is the answer. This gives us the equation 6(x+6), where we multiply 6 by both values inside the equation. 6x + 36 is the answer. Happy learning!

Happy learning!

--Applepi101

Which choice represents the simplified exponential expression?
(8^7)^5

Answers

Answer:

8^35

you multiply exponents of exponents meaning we multiply 7*5 which is 35

Step-by-step explanation:

Anyone know the answer ?

Answers

Answer:

is the name of your school alpha omega, because i recogize the bottom of the page

Step-by-step explanation:

Tonya's dog walking service charges a flat rate of $20 per month, plus $3 Per mile that each dog is walked. Beth does not charge a monthly fee for her dog walking service, but she charges five dollars per mile that each dog is walked.
pls helppp!

Answers

Answer:

A) 20+3m = 5m

Step-by-step explanation:

20+3m = 5m

20 = 2m

m = 10

after each girl has walked dogs for 10 miles, their amount they charge would be equal

Tonya would charge: 20+3(10) = 20+30 or $50

Beth would charge: 5(10) or $50

Need help with this :(

Answers

Answer:

B.    m = [tex]\frac{3}{2}[/tex], y-int = 3

Step-by-step explanation:

To find the slope of the line, we need to plot two points

(2, 6) (-2, 0)

m = slope

Then use the Slope-Formula to Solve for the slope

m = [tex]\frac{y2-y1}{x2-x1}[/tex]        

m = [tex]\frac{0-6}{-2-2}[/tex]

m = [tex]\frac{-6}{-4}[/tex]

m = [tex]\frac{6}{4}[/tex]

m = [tex]\frac{3}{2}[/tex]

The Slope is [tex]\frac{3}{2}[/tex]

The y-intercept is 3 because the line is going 3 units upwards on y axis!

Equation: y = 3/2x + 3

Slope: 3/2

y-intercept: 3

Answer:

m = 3/2      int- 3

Step-by-step explanation:

The line goes up 3 and goes right 2. The line crosses the y-intercept at 3.

The two lines below intersect as shown what the value of x (2x+29) (9x-13)

Answers

Given:

Two lines intersect each other.

Consider the below figure attached with this question.

To find:

The value of x.

Solution:

If two lines intersect each other then the vertically opposite angles are congruent and their measures are equal.

In the given figure, the measures of two vertically opposite angles are (2x+29)° and (9x-13)°.

[tex]2x+29=9x-13[/tex]

[tex]2x-9x=-29-13[/tex]

[tex]-7x=-42[/tex]

Divide both sides by -7.

[tex]x=\dfrac{-42}{-7}[/tex]

[tex]x=6[/tex]

Therefore, the value of x is 6.

can someone pls help for brainlest

Answers

Answer:

270

Step-by-step explanation:

24 times 30, divided by 2 (360)

then subtract 12 times 15 divided by 2 (90)

hey pls help asap
it's urgent due within 1 hr​

Answers

Answer:

I.       C. Both A and B

II.      D. All of the options

III.     B. Help in making people a valuable resource

Which graph represents the function f(x) = |x| - 4?

Answers

Answer:

Neither of the graphs represent f(x)= |x|-4

Step-by-step explanation:

when solving for 0

|0| = 0

0 - 4

= -4

the coordinate at 0 would be (0,-4)

Ms. Li opened a retirement account with adeposit of $2,500. This account earns 4% simple interest annually. How many years will it take her to earn $500 on her $2,500 deposit?

Answers

Answer:

5 years

Step-by-step explanation:

Use the simple interest formula: I = prt

Plug in 500 as I, since that is the amount of interest being earned.

Plug in 2,500 as P and 1.04 as r.

I = prt

500 = (2,500)(0.04)t

500 = 100t

5 = t

So, it will take 5 years to earn $500 on the deposit.

A shirt originally $38.00 is on sale for 25% off. What is the discounted price?

Answers

Step-by-step explanation:

$ 28.50

minus $ 0.00

FINAL Price » $ 28.50

Note: Sales Tax Not Included

Savings » $ 9.50

Effective % Off » 25%

Answer:

$28.5

Step-by-step explanation:

100% - 25% = 75% (so you don't have to add or subtract anything)

38 * .75 = 28.5

=$28.5

WILL


GIVE


BRAINLIST



Solve

EIGHT TIMES a number, added to 4, is -4. Find the number

Answers

Answer:

The number is -1.

Step-by-step explanation:

Set up an equation:

Variable n = number

8 × n + 4 = -4

Use PEMDAS

8n + 4 = -4

Isolate the variable:

8n = -8

n = -1

Check your work:

8 × -1 + 4 = -4

-8 + 4 = -4

-4 = -4

Correct!

Answer:

-1

Step-by-step explanation:

Write out the equation in numbers.

1. Eight times a number = 8x

2. Added to four = +4

3. Is -4 = =-4

4. Now put it together- 8x + 4 = -4

5. Subtract 4 from each side- 8x = -8

6. Divide both sides by 8- x = -1

Find the measurements of angle WXZ, XZW, and XWZ

Answers

Answer:

WXZ = 123

XZW = 28.5

XWZ = 28.5

Step-by-step explanation:

Your mother buys a new mirror for your home. It has a radius of 32.5 centimeters

Using the formula: C= (pi) x d

What is the circumference of the mirror?

Answers

297.23 is the answer
Other Questions
4.Find the solution mentally.a. 3 x -4 = a b. b x (-3) = -12c. -12 x c = 12 d. d x 24 = -12 HALP!!! FIND ALL THREE ANGLES WILL MARK BRAINLIEST FOR LEGITIMATE ANGLES 6.) Ms. Speer is scuba diving. She descends 5 feet below sea level. She descends the same distance 4 more times. What is Ms. Speer's final elevation? * I need help please PLEASE PLEASEEEEEEEE list as many traditional stories as you can that are part of your own culture. What Supreme Court case ended "separate but equal" doctrine andschool segregation? *I will give u a brain list !!!:) Write an argumentative that agrees withyoung peoples ability to imitate positive change in their communities. Please help me out I only need 2 paragraphs When 10 gallons of gasoline are put into a car's tank, the indicator goes from 1/8 of a tank to 3/4. What is the total capacity of the gasoline tank? Based on the statement number 1, is it a fact or opinion? What type ofissue is being discussede Someone help me solve please ?help me please ? Find m < RMQ if mQR = 54 Cuntos megabytes (MB) de capacidad tiene una memoria USB de 16 GB? el que me diga por que le doy una coronita What are two obstacles to progress in developing nations? how can you express regiles fellings as they make their way to find spike I will give u brainliest and 5 star and thanks if its correct Need help with this Equation In 2008, 1 Swiss franc cost .56 British pounds and in 2010 it cost .51 British pounds in 2010. How much would 1 British pound purchase in Swiss francs in 2008 and 2010 Draw Lewis diagram of an oxygen difluoride molecule Multiple Choice: Choose the correct simplified expression for (3x - y) (W+p-3).