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3 years ago

What’s pi? (i actually kno what it is i’m jus bored lol)

Mathematics

2 answers:

Alexxx [7]3 years ago

6 0

Lol it’s an infinite decimal

Alenkasestr [34]3 years ago

3 0

Answer:

3.14159 and so on

Step-by-step explanation:

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Help me<br> Line ℓ is perpendicular to line m. Find the value of x and w.

wel

138° + w° = 180° (sum of angle on a straight line)
w° = 180° - 138°
w = 42

19° + x° + w° = 90°
sub. in w=42,
19° + x° + 42° = 90°
x° = 90° - 19° - 42°
x° = 29°
x = 29

6 0

2 years ago

Read 2 more answers

Suppose you choose a marble from a bag containing 3 red marbles, 5 white marbles, and 4 blue marbles. You return the first marbl

Veseljchak [2.6K]

Answer:

P(red and blue) = 0.1667

Step-by-step explanation:

Let A represent choosing a red marble, there are 3 red marbles

Let B represent choosing a blue marble, there are 4 blue marbles

There are 12 total marbles

Then...

P(A) = 3/12

P(B) = 4/12

choosing the first one, then replacing means the first choice has no effect on the probabilities of the second choice, so the situation is independent.

When calculating the probability of independent events, you multiply the probabilities together. There are 2 scenarios where we can get a red and blue marble..

Choosing a red, then a blue marble, the probability is

(3/12)( 4/12) = 12/144 = 1/12

Choosing a blue, then a red marble, the probability is

(4/12)(3/12) = 12/144 = 1/12

So we have a

(1/12) + (1/12) = 2/12 = 1/6 chance for that to happen, to

P(A and B) = 1/6 = 0.1667

6 0

2 years ago

Evaluate the following expression if y = 4

sleet_krkn [62]

15+5•y/2

15+5•4 / 2

15+20 / 2

15+10

=25

3 0

2 years ago

the germination rate for zinnia seeds is 78%. this means that 78 out of every 100 seeds will sprout and grow. if james wants 60

Harlamova29_29 [7]

Answer: 77 seeds

Step-by-step explanation:

Given: The germination rate for zinnia seeds =78%

Let x be the total number of seeds he planted, then

The seeds germinated= 78% of x

⇒The seeds germinated= 0.78x

If James wants 60 zinnia plants for his yard, then it will give the equation

$0.78x=60\\\Rightarrow\ x=\frac{60}{0.78}\\\Rightarrow\frac{6000}{78}\\\Rightarrow\ x=76.92307\aprrox77$

Hence, he should plant 77 seeds .

5 0

3 years ago

How do you do application of linear equations

Blababa [14]

You can use linear equations if something is being raised or decreased with the same linear function. Such as temperature or the amount of books that get sold.

8 0

3 years ago