Please help, I'm not understanding this, I will give brainliest to the person who helps answer and maybe explain :)


the best way to put the solution is to say
1 to 3/5 * 5/9 to 1/3 or something like that, that was just an example ​

Please Help, I'm Not Understanding This, I Will Give Brainliest To The Person Who Helps Answer And Maybe

Answers

Answer 1

Step-by-step explanation:

all the tasks are the same type and have the same way of solution.

Example №1:
9[girls] + 11[boys]=20 persons. Then the probability to choose the first boy is: 11/20. After this choice, 9[girls]+10[boys]=19 persons. Then the probability to choose the 2-d boy is: 10/19. The final required probability is: 11/20 * 10/19 = 11/38.

P.S. all the details are in the attachment.

P.P.S. the suggetsted way is not the only one.

Please Help, I'm Not Understanding This, I Will Give Brainliest To The Person Who Helps Answer And Maybe

Related Questions

please answer quick!! giving 30 points if u answer quick!!!

Answers

Answer:

Your answer is A and B

Step-by-step explanation:

A. Has 8 by 3 by 2 = 48

B. 6 by 4 by 2 = 48

C. 4 by 4 by 4 = 64

D. 11 by 2 by 2 = 44

please I need help I need it under 20min​

Answers

Answer:

See below ~

Step-by-step explanation:

Solving :

(a) Coordinates of P and Q

⇒ Equate the lines' equations

⇒ 2x² - 6x - 8 = 2x - 14

⇒ 2x² - 8x + 6 = 0

⇒ x² - 4x + 3 = 0

⇒ (x - 3)(x - 1) = 0

⇒ x = 3 and x = 1

Substitute each x-value in the any of the 2 equations :

⇒ y = 2(3) - 14

⇒ y = 6 - 14

⇒ y = -8

P = (3, -8)

⇒ y = 2(1) - 14

⇒ y = 2 - 14

⇒ y = -12

Q = (1, -12)

(b)

(i) 2x² - 6x - 8 = 0

⇒ x² - 3x - 4 = 0

⇒ (x - 4)(x + 1) = 0

x = 4 and x = -1

(ii) 2x² - 6x = -4

⇒ 2x² - 6x + 4 = 0

⇒ x² - 3x + 2 = 0

⇒ (x - 1)(x - 2) = 0

x = 1 and x = 2

(c) Line of symmetry

Finding the vertex :

⇒ Vertex = (h, k)

⇒ h = -b/2a

⇒ h = -(-6)/2(2)

⇒ h = 6/4

⇒ h = 1.5

⇒ The axis of symmetry's equation is : x = 1.5

(d)

⇒ As the mentioned function is a quadratic function, irrational values such as √2, √3, √6, etc. cannot be taken into consideration

Brainliest to the correct answer, but answer ASAP
ONLY answer if you are 100% sure so don't say "I think" or "It might be"

Answers

Answer:

B

Step-by-step explanation:

[tex] \frac{25}{8} = 3.125[/tex]

π = C/d = 25/8 = 3.125

Simplify the expression 3(7x).
help

Answers

Answer:

21x

Step-by-step explanation:

7x is one term. With parenthesis, you have to multiply whatever is on the outside, inside. So that's 3*7x, or 21x.

Hope this helps!

Hey there!

3(7x)

= 3 * 7x

= 7x * 3

= 7x + 7x + 7x

= 14x + 7x

= 21x


Therefore, the answer should be: 21x


Good luck on your assignment & enjoy your day!



~Amphitrite1040:)

Write an explicit formula for a_na
n

, the n^{\text{th}}n
th
term of the sequence 40, 33, 26, ...

Answers

The nth term of the Sequence: 40, 33, 26, .... is 47 - 7n.

What is Arithmetic Progression?

An arithmetic progression (AP) is a sequence where the differences between every two consecutive terms are the same.

Here, we know nth term of the Arithmetic Sequence is

             Aₙ = A + (n - 1)D

where, A is first term and D is common difference

   A = 40 and D = 33 - 40 = -7

Now,    Aₙ = 40 + (n - 1) (-7)

            Aₙ = 40 - 7n + 7

          Aₙ = 47 - 7n

Thus, the nth term of the Sequence: 40, 33, 26, .... is 47 - 7n.

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You deposit $150 in an account. The account earns $27 simple interest in 4 years. What is the annual interest rate

Answers

THIS ONE I CANT FIGURE OUT SORRY :C

What is the least common multiple of 2 and 5

Answers

Answer:

10

Step-by-step explanation:

We Notice that 2 and 5 are two prime numbers

Remark : the least common multiple of two prime numbers is equal to their product .

Then

LCM(2 , 5) = 2 × 5 = 10

2 * 5

= 10 ⟶ least common multiple of the number (since no common factor is there)

What’s the missing angle

(The bottom number is 46 and the top is 78)

Answers

90 degree right angle totals 90 degrees
90-78=12
12 is the x angle for the top question

180 degrees is the supplementary angle total.
180-46=134
134 is the answer for the bottom question

QUESTION ON PIC THANK YOU

Answers

Answer:

10/10

Step-by-step explanation:

what is c
5a-b+c= -10
a-3b-c= -4
2a+4b-2c= 12

Answers

Answer:

{5a-b+c=10}

{a-3b-c=-4

[2a+2b-c=6

Step-by-step explanation: so it's 6 hope this helps. Let me know if it helps and give brainliest.

How do you divide 1748 by 76

Answers

A Calculator helps honey

Consider the
equation
S=Ut+ 2gt²

Answers

The formula s= ut + 1/2gt^2

Represents the total distance "s" travelled by an object in time "t" which has an initial speed of "u" and is accelerating at the uniform rate of "g". It is customary to use the symbol "g" for acceleration due to gravity. However this equation is valid for any value of uniform acceleration.

We can derive the equation as follows.

The total distance travelled by a uniformly accelerating object is equal to average speed multiplied by time

That is: s = (average speed)*t ... (1)

And, average speed = (initial speed + final speed at the end of period t)/2

And final speed = u + gt

Therefore: Average speed = (u + u + gt) = 2u + gt

Substituting this value of average speed in equation (1) we get:

s = (2u + gt)/2]*t = ut +1/2gt^2

hope it helps...!!!

How do you view your account balance online?

Upload the information from a spreadsheet to your bank's Web site.
Visit the Web site where all online banking is done, w, log in to your account, and add and subtract the transactions that appear.
Visit the bank's Web site, log in to your account, and click on the account summary link.
Visit the bank's Web site and click on the bill pay link.

Answers

Answer:

you first can check online, call your bank, visit an ATM, set up alerts, or ask a teller.

If we invest $5,000.00 in an investment account paying 1% interest compounded annual, how much
will the account be worth in 14 years?
A(t) = P(1+)".
n
The account in 14 years will be worth $

Answers

Answer:

5747.37

Step-by-step explanation:

5 000 ( 1 + .01) ^14

 =   5747.37

In a basketball game, Jacob gets 4/9 of the rebounds and Adam gets 3/8 of the rebounds for their team. What fraction of the rebounds did the rest of the team get?

Answers

Answer:

The fraction of the rebounds the rest of the team get was 13/72 (13 out of the 72 total)

Step-by-step explanation:

Jacob gets 4/9

Adam gets 3/8

Since the given fraction provided doesn't have common denominator we would need to do thos first...

4/9 x 8/8 = 32/72

3/8 x 9/9 = 27/72

combining Adam and Jacob rebounds...

32/72 + 27/72 = 59/72

so the remaining, uncounted rebounds are...

72 - 59 = 13

Which statement could be used to prove AB || CE?

Answers

Answer:

B

Step-by-step explanation:

Let's take a look at each statement.

A: ∠1 ≅ ∠8

Angle 1 is congruent to angle 8.

If lines are parallel then angle 1 and angle 8 would be same side (consecutive) exterior angles which are supplementary and not congruent.

Therefore this statement would prove that the lines are not parallel.

B: ∠1 ≅ ∠7

Angle 1 is congruent to angle 7.

If lines are parallel then angle 1 and angle 7 would be alternate exterior angles which are congruent.

This statement proves that the lines are parallel. We have angle 1 that is at line AB and angle 7 which is at line CD. It's important that one angle is at one line and the second angle at the other line, otherwise we cannot prove that the lines are parallel.

C: ∠6 ≅ ∠8

Angle 6 is congruent to angle 8.

Angles 6 and 8 are vertical angles and they are congruent.

This statement is correct but it doesn't tell us anything about the relationship of angles at the other line, therefore it proves nothing.

D: ∠1 and ∠2 are supplementary.

Angles 1 and 2 create a linear pair, therefore they are supplementary.

This statement is also correct but again it tells us nothing about the angles at the other line so it again proves nothing.

X= 1/8 y^2
The directrix of the parabola is
y=-2
x=-2
x= 2

Answers

the correct answer would be x=-2

can you please help I pay you £50

Answers

quaddale dingle said hey, whats up

(7,-2) (5,-2) (5,1) are the coordinates

A parachutist's speed during a free fall reaches 50 meters per second. What is this speed in feet per second? At this speed, how many
feet will the parachutist fall during 10 seconds of free fall? In your computations, assume that 1 meter is equal to 3.3 feet. Do not round
your answers.
Speed:
0
Х
5
?
Distance fallen in 10 seconds:

Answers

50m ≅164 ft (3s.f.)

50m/s≅164 ft/s

distance after 20s:

d=164 ft/s ⋅20s

=3280ft

Hope This Helps!

Elly is a self-employed financial advisor. Last year her income was $57,000.How much does she owe in SECA taxes?

Answers

The SECA taxes for the income $57000 will be $7068.

What is SECA?

SECA stands for Self Employed Contributions Act. These taxes are computed from the net earnings, which in this case is $57000.

The basic rate for SECA taxes is 6.2% for employeer and 6.2% for employee. In the case of people who are self employed, the taxes are double, because they are employee and employeer at the same time.

So, Doug have to pay 12.4% taxes, which is equivalent to:

[tex]\rm SECA=57000\times 12.4\%= $7067[/tex]

Therefore, the SECA deduction for Doug is $7068.

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Select the correct answer.
What is the approximate solution to this equation?
15(3)2+ = 90
=
2log
a = log3
O
210g3
t = log 6
O
log 6
210g3
=
log3
2log 6

Answers

Answer:

C) [tex]x=\frac{\log(6)}{2\log(3)}[/tex]

Step-by-step explanation:

[tex]15(3)^{2x}=90\\\\3^{2x}=6\\\\2x=\log_3(6)\\\\2x=\frac{\log(6)}{\log(3)}\\\\x=\frac{\log(6)}{2\log(3)}[/tex]

Remember to use the change of base formula, which states that [tex]\log_a(b)=\frac{\log(b)}{\log(a)}[/tex] so that everything has the same base of 10

Which 2 shapes on the quadrilateral hierarchy are directly under the trapezoid?
trapezoid and square
rectangle and kite
parallelogram and isosceles trapezoid
square and rectangle

Answers

The shapes that are under the trapezoid in the quadrilateral hierarchy are parallelogram and isosceles trapezoid.

What is a quadrilateral?

A quadrilateral is a polygon that has four sides and four angles. Types of quadrilateral are kite, square, parallelogram and so on.

The shapes that are under the trapezoid in the quadrilateral hierarchy are parallelogram and isosceles trapezoid.

Find out more on quadrilateral at: https://brainly.com/question/23935806

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simplify the ratio of 1:3¼

Answers

Answer:

[tex]\frac{4}{13}[/tex]

Step-by-step explanation:

1÷3[tex]\frac{1}{4}[/tex]=3+[tex]\frac{1}{4}[/tex],  3×[tex]\frac{4}{4}[/tex]

1÷[tex]\frac{13}{4}[/tex]

Let f(x) = 3x + 8 and g(x) = x^2 Find (f.g)(x).​

Answers

Answer:

3x^2 +8

Step-by-step explanation:

f.g(x) = f(x^2) = 3(x^2) + 8 = 3x^2 +8

Find the size of the angle marked a and b on the diagram

Answers

Answer:

Step-by-step explanation:

we know that the total angles around the big triangle are 180° so,  we know the right angle is 90° and we are told that one of the angles is 52° so just find the last angle by

180 = 90 + 52 + X

180 - 90 - 52 = X

38 = X

b = 38°

a = 52°

Answer:

a = 52°b = 38°

Step-by-step explanation:

We know:

Angles in a triangle sum to 180°.

Therefore:

52° + 90° + b = 180°

142° + b = 180°    |-142°

b = 38°

(look at the picture)

a + b = 90° ⇒ a + 38° = 90°   |-38°

a = 52°

or

Angles 52° and a, are alternate interior angles. Therefore they are congruent.

a = 52°

1 of 9
2.
4
5
6
Solve each addition or subtraction problem with its corresponding answer.
a.
11
b. 6
c. 4
d. 1
e.
1. 3
F=-=-= = = = = = =
2. 6
T +
Elo Elm En = 100
3.
5
4. 10
5.
2
11
Check Answer

Answers

52 to the square root of 71




Drag the tiles to the correct boxes to complete the pairs not all tiles will be used.

Answers

Answer:

I will answer them from top to bottom

1. 2A

2. 2A-B

3. 2A+3A

4. 2(A-B)

Step-by-step explanation:

You don't need an explanation. I am just putting this here so my answer does not get taken down.

Given f(x) = x^2 - 4x + 6 and g(x) = 2x^2 + 2x - 5, what is the equation for (f + g)(x)?

Answers

[tex]\\ \rm\Rrightarrow (f+g)(x)[/tex]

[tex]\\ \rm\Rrightarrow f(x)+g(x)[/tex]

[tex]\\ \rm\Rrightarrow x^2-4x+6+2x^2+2x-5[/tex]

[tex]\\ \rm\Rrightarrow 3x^2-2x+1[/tex]

Done!

Answer:

[tex](f+g)(x)=3x^2-2x+1[/tex]

Step-by-step explanation:

[tex]\begin{aligned}\textsf{Given functions}: \quad f(x) &=x^2-4x+6\\g(x) &=2x^2+2x-5\\\end{aligned}[/tex]

[tex]\begin{aligned}(f+g)(x) & =f(x)+g(x)\\& =(x^2-4x+6)+(2x^2+2x-5)\\& =x^2-4x+6+2x^2+2x-5\\& =x^2+2x^2-4x+2x+6-5\\& =3x^2-2x+1\end{aligned}[/tex]

solve for absolute value: 3(r+1)+2>-7

Answers

Answer:

[tex]\huge\boxed{\bf\:r > -4 }[/tex]

Step-by-step explanation:

[tex]3(r+1)+2 > -7[/tex]

Use the distributive property to solve 3 (r + 1).

[tex]3r+3+2 > -7 \\3r + 5 > -7[/tex]

Now, bring 5 to the right hand side of the inequality .

[tex]3r > -7-5 \\3r > -12[/tex]

Divide both sides of the inequality by 3.

[tex]r > \frac{-12}{3} \\\boxed{\bf\:r > -4 }[/tex]

[tex]\rule{150pt}{2pt}[/tex]

Baby Caden wants to arrange 11 blocks in a row. How many different arrangements can he make?​

Answers

Answer:  39,916,800

Explanation:

Start with 11, and count down until you reach 1. Multiply everything along the way.

11*10*9*8*7*6*5*4*3*2*1 = 39,916,800

Or a shortcut would be to say

11! = 39,916,800

The exclamation mark means factorial. It tells the calculator to follow the instructions mentioned above.

The number 39,916,800 is a little over 39.9 million, or you could say it's a bit smaller than 40 million.

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