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3 years ago

Two cards are chosen at random without replacement what is the probability of getting two aces

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

4 0

4/52 chance of getting an ace.

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An amusement park charges a $15 entrance free plus $3.25 for each ride. Part A: Write an equation that represents the situation.

IceJOKER [234]

Answer:

Look below

Step-by-step explanation:

Part A: Equation would be in the y=mx+b format. m, or the slope, would be the cost that varies depending on the number of things that happen so m=3.25. b would be the fix cost so it is 15 so the equation ends up being y=$3.25x + $15.

Part B: Initial value is 15 since it is the fix cost, and 3.25 is the rate of change since it added as the number of rides increase.

Part 3: To solve this you substitute 7 into x so y=$3.25(7) + $15 = $37.75

I hope this explains it well.

7 0

3 years ago

Factor this expression completely.<br><br> u^3 - v^3

Musya8 [376]

Completely factored form of u^3-v^3 is:

$(u-v)(u^2+uv+v^2)$

Step-by-step explanation:

Algebraic formulas are used to factorize the expression.

Given

$u^3 - v^3$

The formula involving cube with negative sign is:

$a^3-b^3 = (a-b)(a^2+ab+b^2)$

Using this formula:

$u^3-v^3 = (u)^3 - (v)^3\\= (u-v)(u^2+uv+v^2)$

Hence,

Completely factored form of u^3-v^3 is:

$(u-v)(u^2+uv+v^2)$

Keywords: Factorization

Learn more about factors at:

#LearnwithBrainly

7 0

3 years ago

Chelsea shows her work in finding the solution to 4x-5=2+3(x-3). After checking her answer in the original equation, she found t

KonstantinChe [14]

Answer:

The solution is x=-2

The mistake could be in operation however here is the all operation

Step-by-step explanation:

Getting each term and sum each one

$4x-5=2+3(x-3)\\4x-5=2+3x-9\\4x-5=-7+3x\\4x-3x=-7+5\\x=-2$

Check replacing in the original equation:

$4(-2)-5=2+3(-2-3)\\-8-5=2-6-9\\-13=2-15\\-13=13$

3 0

3 years ago

Read 2 more answers

Zack bought a coat for $69.78. He paid with $100 bill and received $26.73 in change. How much was the sales tax?

Klio2033 [76]

$3.49

Hopefully I helped!

6 0

3 years ago

Read 2 more answers

Last year a business had profits of $8,000.This year its profits are 5 times as great.This are this year's profits?

Solnce55 [7]

$40,000 in profits this year

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3 years ago