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3 years ago

Find the probability of rolling a sum of 3.

Mathematics

1 answer:

yarga [219]3 years ago

6 0

Answer:

robability formula is the ratio of number of favorable outcomes to the total number of possible outcomes. Measures the likelihood of an event in the following way: - If P(A) > P(B) then event A is more likely to occur than event B. - If P(A) = P(B) then events A and B are equally likely to occur.

Step-by-step explanation:

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Quadratic equation <br>a2=529

PSYCHO15rus [73]

Answer:

a = ±23

Step-by-step explanation:

$a^2=529$

$a_{1} =23$

$a_{2} =-23$

3 0

2 years ago

Pleaseeeeee help me pleaseeeeeeeeeee

Aleks04 [339]

The answer is none of the lines intersect each other, because they are at the same slope, and they do not have a different slope for the lines to be intersected.

3 0

3 years ago

Three cards are randomly selected from a standard 52-card deck, one at a time, with each card re- placed in the deck before the

hammer [34]

Answer:

$\frac{1}{4}$

Step-by-step explanation:

Three cards are randomly selected from a standard 52-card deck.

Number of heart cards in a deck = 13

Each card replaced in the deck before the next one is picked.

Probability of first card is heart = $P_{1}=\frac{13}{52}$

After replacement, the probability of second card is heart = $P_{2}=\frac{13}{52}$

after replacement, the probability of third card is heart = $P_{3}=\frac{13}{52}$

P = $\frac{13}{52}$ × $\frac{13}{52}$ × $\frac{13}{52}$

= $\frac{39}{156}$

= $\frac{1}{4}$

The probability of all three cards are hearts is $\frac{1}{4}$

3 0

2 years ago

C. Find the value of X. Show your work. Congruent triangles

Dmitriy789 [7]

Answer:

Step-by-step explanation:

1) 97 + x = 64 + 27 {Exterior angle property}

97 + x = 91

x = 91 - 97

x = -6

2) 4x + 17 + 80 + x + 23 = 180 {Angle sum property of triangle}

4x + x + 17 +80 + 23 = 180

5x + 140 = 180

5x = 180 - 140

5x = 40

x = 40/5

x = 8

7 0

2 years ago

A family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of

Ostrovityanka [42]

20 gallons is consumed from the first car and 25 gallons is consumed from the second car.

<h3>What is an Equation ?</h3>

A mathematical statement that relates two algebraic expression using an equal sign is called an equation.

It is given that

Fuel Efficiency of the first car is 20 miles per gallon of gas

Fuel Efficiency of the second car is 40 miles per gallon of gas

Total miles travelled = 1400 miles

Total gas consumption = 45 gallons

Let the gallons consumed from the first car is x

then the gallons consumed by the second car is (45 - x)

The equation formed will be

20* x + 40 * (45 -x) = 1400

20x +1800 - 40x = 1400

-20x = -400

x = 20

Therefore 20 gallons is consumed from the first car and

45-20 = 25 gallons is consumed from the second car.

To know more about Equation

brainly.com/question/10413253

#SPJ1

6 0

2 years ago