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1 year ago

The numbers 1 through 15 are written on cards. One card is chosen at random. Event A is choosing a

Mathematics

1 answer:

lana [24]1 year ago

6 0

Step-by-step explanation:

the probability is always the number of desired cases over the number of all possible cases.

in our situation we have 15 cards.

that is the total possible cases when a random card is chosen.

how many desired cases do we have ?

a number NOT a multiple of 5.

how many are there ?

it is easier to say how many numbers there are being a multiple of 5 : 5, 10, 15

so, 3 numbers out of the 15 are multiple of 5.

that means

15 - 3 = 12 numbers of the 15 are NOT multiples of 5.

so, the probability to draw a card that is not a multiple of 5 is

12/15 = 4/5 = 0.8

the information about event B and even numbers is irrelevant for the question.

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A 5 metre long ladder is placed against a wall. It reaches

Juliette [100K]

<h3>given</h3>

5m long ladder placed against 4.3m up the wall.

the angle between the ladder and the ground.

<h3>solution:</h3>

Based on the given conditions, formulate:

sin⁡x=4.3÷5

Evaluate the equation/expression:

x= 1.03527 or 2.10632

x= 1.03527°

or x= 2.10632°

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1 year ago

Evaluate p(-2)=x^3-4x-5

Pani-rosa [81]

Step-by-step explanation:

$p(x) = {x}^{3} - 4x - 5 \\ p( - 2) = {( - 2)}^{3} - 4( - 2) - 5 \\ = - 8 + 8 - 5 \\ = - 5$

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3 years ago

Read 2 more answers

What is −5 1/3 ÷ 2 3/4? a. −12 5/6 b. −7 5/12 c. −1 31/33 d. −1 11/12

julia-pushkina [17]

I hope this helps you

-( 3.5+1/3) ÷ 2.4+3/4

- 16/3 ÷ 11/4

-16/3 × 4/11

- 64 / 33

- 1 31 /33

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2 years ago

What is the volume of a 6-ft high square pyramid with base edges of 8 ft? Answers

Blababa [14]

Answer:

The volume of the pyramid would be 128 cubic feet, hope this helps

Step-by-step explanation:

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2 years ago

There are 650 toothpicks in a regular-sized box. If a jumbo box is made by tripling all the dimensions of the regular-sized bo

tekilochka [14]

Answer:

The jumbo box can hold 17,550 toothpicks

Step-by-step explanation:

The volume of the box can be calculated multiplying all of its three dimensions.

If each dimension of the box is tripled, the new volume will be 3*3*3 times higher, so it will be 27 times higher the old volume.

If in the old volume there are 650 toothpicks, the new volume can have 27 times more, so the number of toothpicks the new box can hold is:

27 * 650 = 17550

The jumbo box can hold 17,550 toothpicks.

8 0

2 years ago