PLEASE HELP ME WITH THIS

PLEASE HELP ME WITH THIS

Answers

Answer 1

Answer:

  35/132

Step-by-step explanation:

The probability of selecting a boy for president is 7/12, the ratio of the number of boys to the number of candidates. Then the probability of selecting a girl for vice president is 5/11, the ratio of the number of girls to the remaining number of candidates. The joint probability is ...

  (7/12)(5/11) = 35/132 . . . P(b=P&g=VP)

__

We can also look at this another way.

The number of ways two candidates can be selected from 12 is 12P2 = 132. The number of ways that the first can be a boy and the second can be a girl is (7)(5) = 35. Then the probability of a (BG) pair from the 12 candidates is 35/132.

_____

Additional comment

These numbers assume that selection is random and all possibilities are equally-likely. That is unlikely to be the case in an election.


Related Questions

Put the following equation of a line into slope-intercept form, simplifying all
fractions.
8y - 6x = 56

Answers

Answer:

y = 3/4 + 7

Step-by-step explanation:

you must put the equation into the form of y = mx + b

add 6x to both sides and put it in front of the 56

8y = 6x + 56

y must be by itself by x does not so we divide everything by 8

y = 6/8x + 7

we must simplify the fraction 6/8

y = 3/4x + 7

these two questions are hard for me. please help

Answers

Answer:

first one is second

Step-by-step explanation:

second one is A

Write and solve an equation for the following:

Answers

Answer:

x = (180 - [71 + 9]) ÷ 2

Step-by-step explanation:

71 + 9 = 80

180 - 80 = 100°

100° ÷ 2 = 50°

WILL GIVE BRAINLIEST!!
What are values of a and b so the system of equations shown has no solutions?

y=7x+b
y=ax+4

Answers

Answer: a is 7 b is 4

Step-by-step explanation: to get an equation with no solution the equation has to be the same so if a is 7 and b is 4 this will show no solution

A=7 and b= anything other than 4. The reason for this is because the lines must never touch (equal slope with different y intercept provides a parallel line that does not meet the original function). A solution is a point in which the two functions intersect. The other answer under this post is incorrect, as they have actually given you INFINITE solutions rather than none.

if f(x)= 3x+1 and g(x)= x^2-6 FIND (f+g)(x)

Answers

Answer:

-x² + 3x + 7

Step-by-step explanation:

• f(x) = 3x + 1

• g(x) = x² - 6

Then,

According to th' question :-

(f - g)(x) = f(x) - g(x)

= 3x + 1 - (x² - 6)

= 3x + 1 - x² + 6

= -x² + 3x + 7

What is the range of function g?

Answers

Answer:

C

Step-by-step explanation:

This function starts at point (1, 2), so 2 is inclusive. Therefore the range of this function is:

[tex]y \geq 2[/tex]

All of these statements are true EXCEPT which one?
A.​

Answers

Answer:

Optio a is rhe right one

i m not sure

Answer:

where's the choices

Step-by-step explanation:

complete your question

how to tell if an equation is linear without graphing

Answers

Answer:

A linear equation has the greatest x power at 1.

If you see an equation with only x (no x^2 or x^3 or stuff like that), you will know that it is linear.

Make x the subject of the formula,
y (x-4) squared +6

Answers

Answer:

Is "y (x-4) squared +6":     y = (x-4)^2 + 6?

If so,

x = y^(1/2) - 6^(1/2) + 4

Step-by-step explanation:

Assuming the equation is:  y= (x-4)^2 + 6

y^(1/2)= (x-4) + 6^(1/2)

(x-4) = y^(1/2) - 6^(1/2)

x = y^(1/2) - 6^(1/2) + 4

PLEASE HELP!! question in picture

Answers

Answer:

you speak English or Espanol? I dont wanna answeri with the wrong language

The ratio of girls to boys in a class is 6 to 8. If there are 27 girls in the class, how many boys are there?


x = 36 boys
x = 40 boys
x = 32 boys
x = 46 boys

Answers

Answer:

36

Step-by-step explanation:

6:8

27/6 = 4.5

8 · 4.5 = 36

4d-6=-14+5d
i neeed help the last person didn’t even help me

Answers

8d so you subtract 4d from 5d then you get 1d then change -14 into positive 14 and add it to negative 6

what is the slope of the line ?

Answers

Answer:

6

Step-by-step explanation:

because I guess it is six line's and that it will definitely be worth it to try it

Joe paid $345 for a vase. He sold it at a profit of 180% of cost price. Find the selling price of the vase?

Answers

Answer:

966

Step-by-step explanation:

180% is written as 1.80 as a decimal. You can multiply this by 345 to get the profit he made, and to find the total selling price, add the profit (1.80x345) to the original price (345)

Sarah has 42 quarters and dimes in her piggy bank which totals $8.25. How many quarters and dimes does she have

Answers

She will have 23 quarts

Please help!
5^3 x 5^-7

Answers

Answer: 0.0016

Step-by-step explanation:

5^3 = 125

5^-7 = 0.0000128

125 * 0.0000128 = 0.0016

Pls answer me this (WILL MARK BRAINLIEST)

Answers

Answer:

a=3 b= -40

Step-by-step explanation:

.....

Yesterday, jack drove 28 1/2 miles. He used 1 1/4 gallons of gasoline. What is the unite rate for miles per gallon?

Answers

Answer

MPG= 30 4/5 or 30.8 is I think is the answer.

Grocery Store A is selling bananas for $0. 75 for 12 pound. Grocery Store B is selling 5 pounds of bananas for $3. 75. Which store is offering the best unit rate? Show your work.

Answers

The  store is offering the best unit rate is  Grocery Store A.

The store with the lower unit rate offers the best rate. The unit rate is the total cost divided by the pound of bananas sold.

unit rate = cost / pounds

Unit rate of Grocery Store A: $0.75 / 12 = $0.0625

Unit rate of Grocery Store B: $3.75 / 5 = $0.75

Comparing the unit rates of both stores, Grocery Store A offers a lower unit rate.

A similar question was answered here: https://brainly.com/question/20197796

How i can answer this question, NO LINKS, if you answer correctly i will give u brainliest!

Answers

Answer:

4:6 = 2:3, the answer is C

Step-by-step explanation:

they visited 4 museums as displayed on the bar and 6 beaches also presented on the bar, which would mean 4:6 and would simplify to 2:3

Urgent!
<6 and what angle are corresponding angles?

Answers

Answer:

11

Step-by-step explanation:

Corresponding angles are the angles which are formed in matching corners or corresponding corners with the transversal when two parallel lines are intersected by any other line (i.e. the transversal).

write 15 and 40 ratio simplest form

Answers

Answer:

15:40

Step-by-step explanation:

expand 7(2x+7). need help quickly if possible

Answers

Hello there! :)

To expand this expression, we have to use the Distributive Property, which states:

a(b+c)=ab+ac

7(2x+7)=14x+49

Hence, 14x+49 is the expression (Answer)

Hope it helps you!

~A lonely teen who helps others and listens to her favourite song "How Far I'll Go

-Grace ;-)

Good luck.

7 (2x + 7)

= (7 × 2x) + (7 × 7)

= 14x + 49

_____

Hope it helps ⚜

1) The length of a rectangle is 5 feet more than 3 times its width. If the area is 182
square feet, find the length of the rectangle. If necessary, round to the tenths
place.

Answers

Answer:

answer is attached on the photo

Which points on the curve of x^2 - xy - y^2 = 5 have vertical tangent lines?

Answers

We need to differentiate this with respect to x to see if we can find an expression for the derivative of y at various points.  That will be the slope of the tangent to the curve.  Then we want to see where that derivative might be infinite -- i.e., where the tangent is vertical.

 

It's not written as a function, but it can still be differentiated using the chain rule:

 

x2 + xy + y2 = 3

(2x) + (x dy/dx + y dx/dx) + (2y dy/dx) = 0

 

(I used parentheses to show the differentiation of each term in the original equation.)

 

2x + x dy/dx + y + 2y dy/dx = 0

2x + y = -x dy/dx - 2y dy/dx

2x + y = dy/dx (-x -2y)

-(2x + y)/(x + 2y) = dy/dx

 

We have the derivative of y, but it's defined partly in terms of y itself.  That's OK.  Let's go on...

 

So where would the slope be infinite?  That would happen when x + 2y = 0, or y = -x/2

 

Let's plug that in for y in the original equation to find points where that's the case.

 

x2 + xy + y2 = 3

x2 + x(-x/2) + (-x/2)2 = 3

x2 - x2/2 + x2/4 = 3

3x2 / 4 = 3

x2 = 4

x = ±2

 

So we have two x values where the tangent might be vertical.  Let's plug them into the equation and see what the y values are.  First x = 2...

 

x2 + xy + y2 = 3

4 + 2y + y2 = 3

y2 + 2y + 1 = 0

(y + 1)2 = 0

y = -1

 

So at the point (2, -1) the tangent is vertical.

 

Now try x = -2...

 

x2 + xy + y2 = 3

4 - 2y + y2 = 3

y2 - 2y + 1 =0

(y - 1)2 = 0

y = 1

 

So at the point (-2, 1) the tangent is vertical.

How do i find the answer

Answers

Answer:

  count them: 12

Step-by-step explanation:

All of the edges are shown in the figure. 9 are visible, and 3 are hidden, as indicated by their being a lighter gray (dotted). You can answer this question by counting the edges.

The total number of edges that a cuboid has is 12.

What is the value of the expression Negative 225 divided b (negative 15)?
What is the value of the expression 30 divided by (negative 6)?

Answers

Answer:

-15-5

Step-by-step explanation:

What is the value of the expression Negative 225 divided b (negative 15)?

What is the value of the expression 30 divided by (negative 6)?

I answer for what I understand

-225 : 15 = - 15

30 : (- 6 ) = -5

easy one for you folks. show work. giving brainly.
who had to shovel more area of the driveway?​

Answers

Answer:

Ahmed shoevked more than sheldon

help with my math READ IT CARFULLY

Answers

Sci = π . 2 . 2 = 12,56 ⇒ 1/2 Sc1 = 1/2 . 12,56 = 6,28

Srec = 6 . 4 = 24

S= 6,28 + 24 = 30,28

the answer is 30,28

ok done. Thank to me :>

If anyone knows how to do this please help, its for a test and I have to finish the course by 11:59 tonight

Answers

the correct answer would be c. hope this helps
it’s c


i have to type more than 20 characters so don’t mind this
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