plz help me this is hard for me​

Step-by-step explanation:

This problem is related to binomial probability

Probability of getting head (success)p= 1/2

Probability of getting tail (failure )q=1/2

Total number of trials(n) = 8

number of success (r)= 3

Binomial probability P(r=3)

[tex]nCr(p)^{n-r}q^r[/tex]

Plug in the values in the formula

[tex]nCr(p)^{n-r}q^r\\8C3(\frac{1}{2} )^{8-3}\frac{1}{2} ^3\\ \frac{8!}{3!(8-3)!} (\frac{1}{2} )^8\\56 \cdot (\frac{1}{256} )\\0.21875[/tex]

To convert it into percentage , multiply by 100

0.21875 times 100= 21.9

Answer :

21.9%

Answer:

The equation does not have a variable

Step-by-step explanation:

6=?-8

Answer: The equation does not have a variable to solve for x

Hope this helps.

Answer:

6÷8=0.75

Step-by-step explanation:

hheks ccu h ccu se bfi s no San kfi rn ko is GB bbn 9 guy dndvidbtdjd

Answer:

slope = 3

y-int= -6

Step-by-step explanation:

y=mx+b

m: slope

b : y-int

Answer:

0.5 pounds is one game

2 pounds is one textbook

Step-by-step explanation:

g = games

t = textbooks

Let's start with how much a game weighs. We know that when Chad added two more games the weight of the box increased by one pound (it was previously 21 pounds and then went to 22 when the two games were added). This means one game equals half of a pound (or 0.5 lbs.)...

[tex]2g = 1[/tex]

[tex]\frac{2g}{2} = \frac{1}{2}[/tex]  -> if you divide one side by two, you must do the same to the other.

[tex]g = \frac{1}{2} = 0.5[/tex]

Now that we know the weight of the games, we can figure out the weight of the textbooks.

[tex]6g + 9t = 21[/tex] -> 6 games and 9 textbooks weigh 21 pounds.

Plugging in that each game is 0.5 pounds...

[tex]6(0.5) + 9t = 21[/tex]

[tex]3 + 9t = 21[/tex]

[tex]3 - 3 + 9t = 21 - 3[/tex]

[tex]9t = 18[/tex]

[tex]\frac{9t}{9} = \frac{18}{9}[/tex]

[tex]t = 2[/tex]

That means that each textbook equals 2 pounds.

I hope this helps!

Answer:

The distance Puis still have to travel to reach his destination is 72 km.

Step-by-step explanation:

The given parameters about Puis journey are

Distance covered by Puis = 1/4 of total distance

Distance remaining for Puis to complete the journey = 3/4 of the journey

Distance of Puis from the third-way (central) mark = 24 km

Therefore;

Distance from 1/4 of journey to 1/2 of journey = 24 km

Hence, 1/2 - 1/4 = 1/4 of the journey = 24 km

Which gives Total distance covered by Puis = 24 km

Total distance of the journey = 4 × 24 km = 96 km

The distance Puis still have to travel to reach his destination = 96 - 24 = 72 km.

Answer:

the first one

Step-by-step explanation:

Answer:

A)

Step-by-step explanation:

just took the quiz on edge

Answer:

6 1/6

Step-by-step explanation:

Answer:

Arionna is incorrect. There are only 3 cubic feet in a cubic yard because there are 3 feet in a yard, and the proportion will remain constant.

Step-by-step expArionna is incorrect. There are only 3 cubic feet in a cubic yard because there are 3 feet in a yard, and the proportion will remain constant.

lanation:

Answer:

The short answer you are looking for is C!

Step-by-step explanation:

I hope you all live a long prosperous life, I wish that you and your family live long and happy, I hope that you will all get through this pandemic and get good flying grades! god bless you if you read this to the end, I love you. ʕっ•ᴥ•ʔっ <3

Answer:

16 hours per week

Step-by-step explanation:

Pham can earn TR1 = $11*16 = $176 at the college bookstore.

At a café she can earn TR2 = $12*6 = $72.

At a garage she can earn TR3 = $10*5 = $50.

At a daycare center she can earn TR4 = $8.50*16 = $136.

If her goal is to maximize the amount of money she can make each week, then she should work 16 hours per week at the bookstore to earn $176.

-stated by a math superior online

Answer:

oof

Step-by-step explanation:

Answer:

The amount of loan ($20000) after 48 months with 1.5% (0.015) interest rate  is calculated by:

A = 20000 x (1 + 0.015/12)^48

   = 21235.94$

Monthly payment of Grace is calculated by:

M = A/number of month

   = 21235.94/48 = 442.4 = ~444$

Hope this helps!

:)

P.S: I did try the amortization formula, but something wrong with my calculator. I used other formula instead :)

Answer:

m

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

288

Step-by-step explanation:

Just took test on edg

Answer:

Total number of adult tickets sold = 10

Total Number of Students tickets sold = 30

Step-by-step explanation:

Let [tex]x[/tex] be the number of student tickets sold.

Let [tex]y[/tex] be the number of adult tickets sold.

As per the question statement, total tickets sold are 40.

[tex]x +y =40 ...... (1)[/tex]

Price of each student ticket = $5

Sales from students' tickets = Price of each students ticket [tex]\times[/tex] Number of students tickets sold

Sales from student's tickets = 5 [tex]\times x[/tex]

Price of each adult ticket = $9

Sales from adult's tickets = Price of each adult's ticket [tex]\times[/tex] Number of adult tickets sold

Sales from student's tickets = 9 [tex]\times y[/tex]

Total sales is done by students and adult tickets is $240 as per the question statement.

[tex]\Rightarrow 5x + 9y = 240 ......(2)[/tex]

Solving equations (1) and (2) using elimination method:

Equation [tex](2) - 5 \times (1)[/tex] :

[tex]5x + 9y -5x-5y = 240-200\\\Rightarrow 4y = 40\\\Rightarrow y =10[/tex]

Total number of adult tickets sold = 10

Putting [tex]y=10[/tex] in equation (1):

[tex]x+10 = 40\\\Rightarrow x = 30[/tex]

Total number of students tickets sold = 30

Total number of adult tickets sold = 10

Total Number of Students tickets sold = 30

Answer:

24618 mm^3

Step-by-step explanation:

V = pi r^2 h

We know the diameter

r = d2/ = 28/2 = 14

V = pi (14)^2 (40)

Approximating pi to 3.14

V = (3.14 ) 14^2 *40

V =24617.6

Rounding to the nearest whole number

V = 24618

Answer:

An equation is a mathematical statement that two expressions are equal. The solution of an equation is the value that when substituted for the variable makes the equation a true statement.

Step-by-step explanation:

Answer:-2

Step-by-step explanation:

g=-5(3)+13

=-15+13

=-2

Hope this helps

Answer:

g = -2

Step-by-step explanation:

g = -5r + 13        Substitute 3 for r into the equation

g = -5(3) + 13     Multiply in the parentheses

g = -15 + 13        Add

g = -2

Solution is 10. How?

I dont know if it helps but tell me if it does

Answer:

it's 44

Step-by-step explanation:

6(8) - 4

48 - 4

44

The answer to this problem is 1/6.

The share of the pizza each friend will have is 1 / 6.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that three friends equally share 1/2 of a pizza. The fraction of the pizza shared by each friend will be:-

Fraction of pizza = ( 1 / 2 ) x ( 1 / 3 )

Fraction of pizza = ( 1 / 6 )

Therefore, the share of the pizza each friend will have is 1 / 6.

To know more about expression follow

https://brainly.com/question/17220365

#SPJ2

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As the radius of the circle is 5

You need to square this value for it to fit the equation

5^2 = 25

Thus, your answer would be option B

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Answer:

30

Step-by-step explanation:

The calculation is in the image

Answer:

B

Step-by-step explanation:

If you shifted this equation 7 units to the right and 3 down, the new formula would be [tex]4(x-7)^2-19[/tex], or answer choice B. Hope this helps!

Answer:

4/9, 11/13, 6/5

Step-by-step explanation:

Answer:

Since M1 has the higher probability of being in the desired range, we choose M1.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Two machines M1, M2 are used to manufacture resistors with a design specification of 1000 ohm with 10% tolerance.

So we need the machines to be within 1000 - 0.1*1000 = 900 ohms and 1000 + 0.1*1000 = 1100 ohms.

For each machine, we need to find the probabilty of the machine being in this range. We choose the one with the higher probability.

M1:

Resistors of M1 are found to follow normal distribution with mean 1050 ohm and standard deviation of 100 ohm. This means that [tex]\mu = 1050, \sigma = 100[/tex]

The probability is the pvalue of Z when X = 1100 subtracted by the pvalue of Z when X = 900. So

X = 1100

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{1100 - 1050}{100}[/tex]

[tex]Z = 0.5[/tex]

[tex]Z = 0.5[/tex] has a pvalue of 0.6915.

X = 900

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{900 - 1050}{100}[/tex]

[tex]Z = -1.5[/tex]

[tex]Z = -1.5[/tex] has a pvalue of 0.0668

0.6915 - 0.0668 = 0.6247.

M1 has a 62.47% probability of being in the desired range.

M2:

M2 are found to follow normal distribution with mean 1000 ohm and standard deviation of 120 ohm. This means that [tex]\mu = 1000, \sigma = 120[/tex]

X = 1100

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{1100 - 1000}{120}[/tex]

[tex]Z = 0.83[/tex]

[tex]Z = 0.83[/tex] has a pvalue of 0.7967.

X = 900

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{900 - 1000}{120}[/tex]

[tex]Z = -0.83[/tex]

[tex]Z = -0.83[/tex] has a pvalue of 0.2033

0.7967 - 0.2033 = 0.5934

M2 has a 59.34% probability of being in the desired range.

Since M1 has the higher probability of being in the desired range, we choose M1.

Answer: C Always

Step-by-step explanation: multiply two rationals is the same as multiply two fractions which will result in another fraction

Answer:

6/5 = 1 1/5

Step-by-step explanation:

3/4 ÷ 5/8

Copy dot flip

3/4 * 8/5

Rewriting

3/5 * 8/4

3/5 *2

6/5

Changing from an improper fraction to a mixed number

5/5 +1/5

1 1/5

Answer:

[tex]\frac{6}{5}[/tex] = [tex]1\frac{1}{5}[/tex]

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Here you can check by trying points along the number line that are not included in the other number line. For example, x = -3 is included in A but not in B and x = -5 is included in B but not in A.

If x = -3, the inequality 5x > -20 is true because -15 > -20.

If x = -5, the inequality 5x > -20 is false because -25 is not > -20.

There for the answer should include x = -3 and not include x = -5, so A.

Answer:

The dimensions of the vegetable patch is 8 m by 7 m.

Step-by-step explanation:

Area of a vegetable patch is 56 square meters and the perimeter is 30 m.

If l is length and b is breadth, then area and perimeter of a rectangle is given by :

[tex]A=l\times b[/tex]

[tex]P=2(l+b)[/tex]

Substituting the values in the above formulas as :

[tex]l\times b=56\ ....(1)[/tex]

and

[tex]2(l+b)=30\\\\l+b=15\ .....(2)[/tex]

We need to solve equation (1) and (2) to find the values of l and b such that :

Equation (2), l = 15 - b

Equation (1) becomes,

[tex](15-b)b=56\\\\b=7\ m, 8\ m[/tex]

If b = 7 m, so, l = 8 m

If b = 8 m, l = 7 m

So, the dimensions of the vegetable patch is 8 m by 7 m.

Answer:

What is the question?

Step-by-step explanation: