In a middle school of 80 students, 42 girls and 38 boys. What is the probability
that if two students were randomly chosen, the first is a boy and then a girl
sequentially?

Answers

Answer 1

Answer:

dont have idea

Step-by-step explanation:

have not studied that topic


Related Questions

Determine whether Rolle's Theorem can be applied to f on the closed interval [a, b]. (Select all that apply.)
f(x) = cos x, [, 3]
If Rolle's Theorem can be applied, find all values of c in the open interval (a, b) such that
f '(c) = 0.
(Enter your answers as a comma-separated list. If Rolle's Theorem cannot be applied, enter NA.)
c =

Answers

Answer:

pick faster

Step-by-step explanation:

answer (10-4)x4+8 and i will give u brainlyest and 100pts :>>

Answers

Answer:

(10-4)*4+8

=6*4+8

=24+8

=32

Answer:

32

Step-by-step explanation:

Following PEMDAS we first do the stuff in the parentheses and we get [tex]6x4+8[/tex]

Then since there are no exponents, we go straight to doing the multiplication and division, which leaves us with [tex]24+8[/tex].

Finally when we add the last 2 terms together we get our answer of 32.

Hope this helps!

pls help =pdndjn mkZbn v

Answers

Answer:

Step-by-step explanation:

Past: The birds flew away quickly

Present: The geese honk at the passerby

Future: The ducklings will hatch soon

Answer:

[Past] The birds flew away quickly.

[Present] The geese honk at passersby.

[Future] The ducklings will hatch soon.

_______________________________

I can't see the options on the second image.

1.) Put in order from least to
greatest: 7, -11, 4, -2, -5

Answers

Answer:

least to greatest is how number appear on a number line. numbers less than 0 or indicated with a negative number. if the number is greater than 0 it's indicated without the negative as the plus is implied.

-11, -5, -2 ,4 , 7

You pick a card at random.

7 8 9
What is P(not 7)?
Write your answer as a fraction or whole number.

Answers

P(not 7) = 2/3 .......

12x^3-8x^2-32x factoring

Answers

Answer:

= 4x (3x+4) (x−2)

Step-by-step explanation:

12x^3−8x^2−32x

= 4x (3x+4) (x−2)

PLEASE HELP ILL GIVE BRAINLIEST!!!!

Which line plot displays a data set with an outlier?

(btw don't mind the one that's selected I accidentally pressed that)

Answers

The last one is correct.

Answer:

the graph selected

Step-by-step explanation:

If we look to the third graph we can see that all data are concetrated on the left part of the graph, but there is one that is on the right part, so it is an outlier

Rozlyn invested $2000 in an account that pays 4.25% annual simple interest. She will not make any additional deposits or withdrawals. How much interest will Rozlyn earn on her investment in 10 years?

Answers

Answer:

$850

Step-by-step explanation:

Interest = Principal x Rate x Time

I = 2000(.0425)(10)

I = 850

PLEASE HELPPP!!!
FIRST ONE TO ANSWER GETS BRAINLIEST Use the expression shown below.
1 x x x x
1 x 1
Part A
Enter a number in the box to show an equivalent expression using an exponent.
(1)
LOOK AT THE PHOTO I PUT

Answers

Answer:

[tex]1/4x^{5}[/tex]

Step-by-step explanation:

Sarah is going to invest $280 and leave it in an account for 9 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Sarah to end up with $410?

Answers

Answer:

4.2%

Step-by-step explanation:

what is the volume of a cylinder with a diameter of 10 and a height of 4

Answers

Answer:

V = 314.16

Step-by-step explanation:

How many sides does a polygon have if the sum of its interior angle measures is
7380°?

Answers

43

if so, use the formula for sum of interior angles in a polygon to solve. 7380 = (n - 2)(180), where n is the number of sides. The number of sides of the polygon is 43.

There are 43 sides in a polygon,  if the sum of its interior angle measures is 7380°.

What is Polygon?

A Polygon is a closed figure made up of line segments (not curves) in a two-dimensional plane.

We have to find the number of sides in a polygon.

The sum of its interior angle measures is 7380°

The sum of the interior angles of a polygon can be calculated using the formula S = (n - 2) x 180°

where n is the number of sides of the polygon

7380 = (n-2)×180

We have to solve for n

Divide both sides by 180

7380/180=n-2

41=n-2

Add 2 on both sides

43 = n

Hence, there are 43 sides in a polygon,  if the sum of its interior angle measures is 7380°.

To learn more on Polygon click:

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Decide which of the following quantities can be represented by a positive number and which can be represented by a negative number. Give an example of a quantity with the opposite sign in the same situation

Answers

Answer:

Step-by-step explanation:

a +

b -

c +

d -

e -

positive, Negative , Positive, Negative, Negative.

What is Number System?

A number system is defined as the representation of numbers by using digits or other symbols in a consistent manner.

The given sentences are

(A) Tylers puppy gained 5 pounds.

This we can take as a positive number. Because here the value is increasing. whenever we use gained means it is positive.

Tylers puppy lost 5 pounds is the negative number.

(b) The aquarium leaked two pounds of water

This we can take as a Negative number. Because here the value is decreased. whenever we use leaked means it is negative.

The aquarium added with two pounds of water is a positive.

(c) Andrew received a gift of $10.

This we can take as a positive number. Because here the value is increasing. whenever we use received means it is positive.

Andrew gifted a gift of $10.

This we can take as a Negative number. Because here the value is decreased. whenever we use gifted means it is negative.

(d) Kiran gave a gift of $10

This we can take as a Negative number. Because here the value is decreased. whenever we use gave means it is negative.

Kiran received a gift of $10 is positive.

(e) A climber descended 550 feet.

This we can take as a Negative number. Because here the value is decreased. whenever we use descended means it is negative.

Hence positive, Negative , Positive, Negative, Negative,.

To learn more on Number system click:

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Matt is baking cookies.

He uses butter, sugar and flour in a ratio of 2 : 3 : 4

Matt uses 300 g of flour.

How much sugar does he use?

Answers

I am certain it is

200g butter
300g flour
400g sugar

Help due today asap Plaese help

Answers

Answer:

A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

got it right on the test

Is the following relation a function? *
{(-3, 2), (1, 8), (-1, 5), (3, 11)}
Yes
No
Why or why not?

Answers

Answer:

No.

Step-by-step explanation:

Well at first glance it might seem so but there are two points particularly that can tell you that these points cannot be within a function.

The points (3,2) and (3,-2) will yield an undefined slope (a straight vertical line). There is no possibility that the other points can be in this line (as their y - values are different) and there is no possibilty that this is a function at all according to the vertical line test (the test is that if you draw a vertical line that there shouldn't be more than one point on it).

Suppose that 8% of college students are vegetarians. Determine if the following statements are true or false, and explain your reasoning.

a. The distribution of the sample proportions of vegetarians in random samples of size 60 is approximately normal since n >= 30.
b. The distribution of the sample proportions of vegetarian college students in random samples of size 50 is right skewed.
c. A random sample of 125 college students where 12% are vegetarians would be considered unusual.
d. A random sample of 250 college students where 12% are vegetarians would be considered unusual.
e. The standard error would be reduced by one-half if we increased the sample size from 125 to 250.

Answers

Step-by-step explanation:

we have p=proportion of vegetarian students=0.08

a. FALSE.

for normal approximations we must have np>=5 and n(1-p)>=5

here n=60 so np=60*0.08=4.8 which is less than 5.

hence normal approximation is not applicable.

b. TRUE.

for binomial proportion , the distribution is right skewed if 1-2p>0 or, 0.5>p

here, p=0.08 so 0.5>p is satisfied. hence it is rightly skewed.

c. FALSE.

here, n=125 which is quite large. hence normal approximation is applicable.

let phat be the sample proportion

then phat approximately follows a normal distribution with E[phat]=p=0.08

and variance=V[phat]=p(1-p)/n=0.08(1-0.08)/125=0.0005888

hence standard deviation=sqrt(0.0005888)=0.0242652

hence effective range of phat is [0.08-3*0.0242652,0.08+3*0.0242652]=[0.0072044,0.1527956]

12%=0.12 lies in this effective range.

hence it is not unusual.

In this exercise we have to classify whether the statements are true or false:

a) False

b) True

c) False

d) False

e) False

We have: [tex]p=proportion of vegetarian students=0.08[/tex]

a) FALSE.  

For normal approximations we must have:

[tex]np\geq 5 \\n(1-p)\geq 5[/tex]

Where [tex]n=60[/tex] so [tex]np=60*0.08=4.8[/tex]  which is less than 5. Hence normal approximation is not applicable.

b)TRUE.

For binomial proportion , the distribution is right skewed if :

[tex]1-2p>0 \\ 0.5>p[/tex]

Where, p=0.08 so 0.5>p is satisfied. hence it is rightly skewed.

c) FALSE.

Where, n=125 which is quite large. hence normal approximation is applicable. Let phat be the sample proportion then phat approximately follows a normal distribution with:

[tex]E[phat]=p=0.08[/tex]

and [tex]variance=V[phat]=p(1-p)/n=0.08(1-0.08)/125=0.0005888[/tex]

Hence standard deviation [tex]=sqrt(0.0005888)=0.0242652[/tex]

hence effective range of phat is:

[tex][0.08-3*0.0242652,0.08+3*0.0242652]=[0.0072044,0.1527956][/tex]

12%=0.12 lies in this effective range. Hence it is not unusual.

d) FALSE.

e) FALSE.

See more about proportion at : brainly.com/question/8704765

if GameStop buys a video game for $35.00 and sells it with a 15% markup. How much does it cost the customer?

Answers

Answer:

40.25$

Step-by-step explanation:

(-6, -7) and (3,-4)
Pleaseee helppppppp​

Answers

Answer:

y = x/3 - 5

Step-by-step explanation:

Answer:

y = (1/3)x  - 5 .

Step-by-step explanation:

(-6 , -7) ; (3 ,-4)

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

          [tex]=\frac{-4-[-7]}{3-[-6]}\\\\= \frac{-4 + 7}{3+6}\\\\= \frac{3}{9}\\\\=\frac{1}{3}[/tex]

m = 1/3   ; (3,-4)

y - y1 = m(x - x1)

[tex]y - [-4]=\frac{1}{3}(x-3)\\\\y + 4 = \frac{1}{3}x-3*\frac{1}{3}\\\\y + 4 = \frac{1}{3}x-1\\\\y =\frac{1}{3}x-1-4\\\\y = \frac{1}{3}x - 5[/tex]


The volumes of water in eight containers are 3.1 liters, 2.8 liters, 3.2 liters, 4.2 liters, 3.9 liters,
5.6 liters, 3.7 liters, and 4.5 liters. Find the median volume.

Answers

Answer:

201 2.1

Step-by-step explanation:

adad yes

Dont steal points please if you do you will get repo answer all please I will give brainliest if its correct and 5 stars rating and the heart thanks.

Answers

Answer:

Here is the work I did yesterday for you

Step-by-step explanation:

13.068 the same as 13.608

Answers

Answer:

No its not

Step-by-step explanation:

13.603 is more then 13.068  

12. What type of sequence is this? *
1,-6, 36,-216, 1296,...
Arthimetic
Geometric
Neither

Answers

Answer:

The sequence is Geometric sequence

PLSS help me ☝............

Answers

Answer:

New Coordinates: G'(0,4) Y'(3,3) M(3,7)

Movement: Translation 3 units up

Step-by-step explanation:

Since you're adding to the y-coordinate, your points will move up which makes this a translation

Bananas cost $ 0.59 per pound.Write an equation that could be used to find the total cost,y,of x pounds of bananas.​

Answers

I think it is 5 Bc I do and if you got to know so bad

Answer:

Step-by-step explanation:

5

Find the value of y.
3 cm
5 cm
X
6 cm
у
2 cm
3 cm
y = [?] cm
Enter a decimal rounded to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

2x11=22

3(3+x)

22=9x+3x

Subtract nine

13=3x

Multiply 13 by 3=13/3

Convert to decimal

Answer is:4.3

Help quickly pleaseee

Answers

Answer:

I'm corona positive and isolated feeling depressed just logged in to talk someone but people ignoring me thanks for this behaviour got disappointed bye everyone logging out had a great time

If you have $2000 and you made an investment that cost $400 and it gives back 1000 how much

Answers

Answer:

you made 600 profit

Step-by-step explanation:

2000-400=1600

1600+1000=2600

2600-2000=600

Answer: 2600

Step-by-step explanation:

2000 - 400 = 1600 + 1000 = 2600

PLS HELPPPPPPP MEEEEE

Answers

Answer:

4.7 · 10^7

Step-by-step explanation:

Find the slope of the tangent line to the graph of each equation at x = 1. y = x3

Answers

Answer: the answer is 3

Step-by-step explanation: The gradient (or slope) of the tangent to a curve at any particular point is given by the derivative at that point If y = x 3 then d y d x = 3 x 2 When x = 1 ⇒ d y d x = 3 So the slope equals 3

The slope of the tangent line to the graph of each equation at x = 1. y = 3x will be 3.

What is the slope?

A numerical assessment of a line's angle relative to the ground is known as the slope.

The inclination of any line, ray, or line segment is the fraction of the perpendicular to the horizontal distance between any two positions on it.

The slope is found by the relation;

[tex]\rm m = \frac{dy}{dx} \\\\ m= \frac{d(3x)}{dx} \\\\ m=3[/tex]

Hence,the slope of the tangent line to the graph of each equation at x = 1. y = 3x will be 3.

To learn more about the slope, refer to the link;

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